Dr Sreeram’s core expertise has been in the area of Sustainability of Leather Industry. His group works on all the three components of Sustainability, viz., environmental, economic and social. On the Environmental Sustainability end, his group’s contribution has been on chrome management - starting from the ore processing residue management to rare earth based pigments as alternatives to chromium(VI) pigments and in development of less chrome tanning salts. His expertise in the development of synthetic tanning agents free of formaldehyde and retanning cum fatliquoring agents have both environmental and economic benefits.
Keeping in tune with the needs of developing circular economies, Dr Sreeram’s research group has also developed retanning agents and colorants based on the black liquor from paper and pulp industry wastes.
Taking advantage of the developments in nanoscience, metal nanoparticle based pigments that can serve as UV, solvent and hydrogen sensors on leather surfaces have been developed using nanoparticles. By functionalization of metal oxide nanoparticles, Dr Sreeram’s group has demonstrated the stabilization of collagen using metal oxide nanoparticles.
To reduce the energy consumption for cooling and also to reduce water consumption in leather processing, leading higher social acceptance of the leather processing activity, rare earth based metal oxide pigments with a high NIR reflectance and waterless processing techniques for leather have been developed.
As a researcher in the area of analytical tools for leather characterization, Dr Sreeram has also been involved in the development of tools for identification of genuine leather, biodegradability of leather and development of metrics for sustainability.
Educational Qualifications
|
Sl. No |
Degree/Certificate |
Year of Passing |
University/Institute |
Subjects |
|
1 |
Bachelor of Technology |
1994 |
Anna University |
Leather Technology |
|
2 |
Master of Technology |
1996 |
Anna University |
Leather Technology |
|
3 |
Doctor of Philosophy |
2000 |
Anna University |
Leather Technology |
Academic/Research Experience/Employment
|
Sl. No |
From |
To |
Name of Organization |
Position Held |
|
1 |
2000 |
2002 |
CSIR-CLRI |
Research Associate |
|
2 |
13.3.2002 |
12.3.2006 |
CSIR-CLRI |
Scientist C |
|
3 |
13.3.2006 |
12.3.2010 |
CSIR-CLRI |
Scientist EI |
|
4 |
13.3.2010 |
12.3.2014 |
CSIR-CLRI |
Principal Scientist |
|
5 |
13.3.2014 |
27.11.2019 |
CSIR-CLRI |
Sr. Principal Scientist |
| 6 | 28.11.2019 | till date | CSIR-CLRI | Director |
Area of Specialization
Professional Affiliations
Current Responsibilities
List of Best Professional Outputs/Outcomes in Last 10 Years [Relevant to area of Specialization]
|
Sl.No |
Output/ Outcome |
Details |
|
1. |
Chrome Melamine Syntan |
Commercially known as SELTAN CM Leather is sold by area. To maximize usable area, selective filling and grain tightening effect on the belly region of hides and skins is required. Used as an upgradation syntan, the product combines the advantages of a melamine based product with the tanning properties of chromium and is free of formaldehyde. Commercialized through Sellam Chemicals. |
|
2. |
Retanning cum fatliquoring agent |
Named as Relub17 by CSIR-CLRI To confer handle (a combination of fullness and softness) to the leather, industry employs more than 2 products for providing fullness (retanning) and lubrication (fatliquoring) of fibres. This is a single product that provides good handle, leading to minimization of processing time and chemical utilization. Commercialization efforts underway through CSIR-FTT Project Mode |
|
3. |
Retanning agent from paper industry wastes |
There is a need to adopt circular economy wherever possible to enhance the sustainability of manufacturing industry. Utilizing the polyphenols (modified lignin) present in black liquor of paper and pulp industry a retanning agent similar in properties to aromatic sulfonic acid – formaldehyde adducts has been developed. Commercialization efforts underway through CSIR-FTT Project Mode |
|
4. |
Cool colorants based on rare earth metal ions |
Through a combination of rare earth metal ions, including mixed rare earth salts and transition metal ions, pigments of blue, red and yellow hue have been developed during 2002 and 2017. These pigments have the ability to reflect the near infrared radiations of sunlight, thus keeping the interiors of buildings as well as leathers cooler – leading to reduction in energy requirements for cooling. As an offshoot upconversion luminescent rare earth nanoparticles have also been developed. A collaboration with UANL Mexico was in place. Out of 32 CSIR publications in this area, 15 are from our group, with cumulative IF of 48.8 and average 14.06 citations per paper. Ready for Commercialization and being evaluated by two companies. |
|
5. |
Functionalized nanoparticles – protein (collagen) interactions |
The conformational, rheological and thermal properties of functionalized nanoparticle crosslinked proteins have been studied in detail. Based on these studies, dendrimer (G3) and other polymer functionalized ZnO nanoparticle mediated collagen materials have been found to be highly suitable for tissue engineering, enzyme delivery and cosmetic applications. The study has now been extended to application in tanneries. This research was funded by Department of Biotechnology, GOI during 2014-17. With a total of 12 publications, 14.6 citations per paper, and aggregate IF of 38.38, our work has enthused significant interest in this area. This has led to the award of the Fellow of Royal Society of Chemistry, UK |
|
6. |
Auxiliaries for smart leathers and smart leather manufacture – leather as a sensor |
With availability of raw material remaining more or less constant, conferring customer desired smart properties to leather enhances the value of leather. It is also quite possible that such new features would enable leather to enter unexplored territories such as those envisaged for smarter textiles. An innovation in visual stimulus creates immediate appeal and utility, leading to consumer perception of owning it. Products for leather finishing (surface coating) that can turn leather as a sensor for heat (thermochromism), UV light (photochromism), hydrogen gas (such as leakage from fuel cell driven car) have been developed and are being evaluated in the laboratory scale for their reversibility in color change. A move from water based diffusion to solvent based diffusion of auxiliaries through modified auxiliaries have been made possible. One of the most well received oral communications at the XXXII IULTCS Congress at Istanbul in 2013. With a total of 13 publications, 3.1 citations per paper, and aggregate IF of 23.96, our work has enthused significant interest in this area. This has led to the award of the Fellow of Society of Leather Technologists and Chemists, UK. |
|
7. |
S&T Revolution in Leather with a Green Touch (STRAIT) – 12th Plan Project |
As Nodal Officer for a project involving 99 Scientists – leading to 27 technology leads, 7 commercialized technologies, 295 plus (direct and indirect) papers, 25 patents filed, 54 PhD and 70 Project fellows. STRAIT is one of the most successful government funded projects of CSIR-CLRI with IF / crore of 22.4, IPR/crore of 0.63 and technologies/crore of 0.2. STRAIT opened up a unique opportunity for CSIR to bring about revolutionary changes in the Indian leather sector. Long term sustainability of leather processing world over demands revolutionary changes in technologies addressing all residual concerns in environmental impact of the industries. |
|
8. |
Testing Services through Centre for Analysis, Testing, Evaluation and Reporting Services (CATERS) |
Since 2016 June, the chemical testing and physical testing activities of CSIR-CLRI were merged together as CATERS. As the Head of the new division, efforts to harness the strengths of the two wings and seek commercial income from the same was taken up. Linkages were established with Governments of Tamil Nadu, Madhya Pradesh and Chattisgarh and several Navaratnas to have CSIR-CLRI as their trusted third party evaluation agency for quality assurance. This has led to 70 lakh satisfied student customers who obtained Velcro sandals ands school bags of good quality and 10 lakh tendu pakka procuring families who were provided with ladies chappal and gents shoes. Safety shoes for almost all navaratnas are being tested at CLRI now. This has resulted in an external cash flow of approx. Rs. 8 crores between 2016-17 and 2018-19. |
|
9. |
XXXIV International Union of Leather Technologists and Chemists Societies (IULTCS) Congress |
The XXXIV IULTCS Congress, 2017 was held between 5-8 February 2017 at Chennai. As the Convener of the Congress since getting the international community to vote for the congress in India in 2013, this congress has been regarded as the best in recent times. With 634 delegates including 300 students from around the world, the congress highlighted the recent trends in leather processing and chemicals. The congress called for the global research community to bring about holistic changes for sustainability of the sector. 56% of the attendees felt that the quality of the papers presented were very good, while 24% felt it was excellent. 88% of the respondents found that the congress was up to their expectations. |
|
10. |
Technology Road-map for manufacturing: 2035 – A Technology Information, Forecasting and Assessment Council (TIFAC) report |
As the author of the chapter on Leather, traced the manner in which the industry has grown, with technology activity driven mostly by market forces and consumer preferences. In the roadmap based on available and institute survey reports on raw material, consumer trends etc., it was envisioned that by 2035 the leather sector would foresee greater interplay of innovation driven manufacturing. Research needs for short, medium and long term as well as possible blue sky areas for research were identified. |
Highlights of Contributions to the area of Specialization: Leather
ENVIRONMENTAL SUSTAINABILITY: CHROME MANAGEMENT
Sustainability of Chrome Tanning - Chromite Ore Processing Residue Management:
The processing of chromite ore is associated with the generation of large quantities of solid wastes containing chromium, which has been disposed of as landfills for many years, resulting in leaching and subsequent contamination of ground water with Cr(VI). A methodology for the near complete mobilization and recovery of chromium as against the conventional immobilization as in landfills from COPR has been developed. An extraction with sodium peroxide and other oxidizing agents in the presence of alkali enables leaching of 95% of chromium. Subsequent recovery of iron from the residue has also been demonstrated. A patent for the same has been granted. A collaborative effort between the research group at CLRI and those in Scotland (University of Paisley, University of Strathclyde) for understanding chromium in landfills was also taken up.
Managing Chrome Containing Wastes: Utilization of chrome shavings for preparation of basic chromium sulfate and as adsorbent for tannins:
Chrome shavings contribute to 10% of the raw hides and skins processed, amounting to 0.8 million ton globally. The ability of collagen with its carboxyl groups predominantly blocked to adsorb vegetable tannins from semi-chrome liquors (waste liquors containing chromium and vegetable tannins) has been studied. The adsorption process follows the Freundlich isotherm, with tannin removal efficiency of around 94%. The process has been optimized with respect to tannin to adsorbent ratio, time, concentration of tannin etc. The high reductive nature of chrome shavings or the tannin adsorbed shavings has been exploited for the reduction of chromium(VI) to prepare basic chromium sulfate. The basic chromium sulfate has been prepared either by complete or partial substitution of molasses. A complete replacement of molasses was possible with the intermediate compounds serving as masking agents. The leathers made from basic chromium sulfate prepared by this method were comparable to commercial basic chromium sulfate.
Less chrome tanning salts:
A need to replace chromium in tanning has been identified. With a view to reduce the offer of chromium in tanning, mixed-metal complex of chromium and zirconium has been developed. The mole ratios of Zr and Cr in the complex have been optimized to achieve above 100oC shrinkage temperature, without loss of leather quality and changes to conventional tanning methods. The developed leathers meet various physical and chemical characteristics required and also enable reduction in chromium loads in the effluent by 75% and sulfate load by 50%. A novel chrome-silica tanning agent that provides better bulk properties to the leather namely softness, smoothness, fluffiness and fullness apart from increased chrome exhaustion has also been developed.
Direct Chrome Liquor Recycling:
The direct recycling of chrome liquor in pickle or tanning bath is gaining importance. The role of preacidification of the spent liquor prior to its use in tanning has been studied. Preacidification to pH 1.0 results in the formation of larger percentage of lower charged species, thereby avoiding the surface fixation of chromium. The organoleptic properties, chromium distribution, and SEM analysis of the leathers processed using direct recycling method after pre-acidification to pH 1.0 indicates that the quality of leathers is not impaired. No significant influence of pre-acidification was observed on the pollution load. The methodology has been demonstrated at pilot scale levels at various tanneries in Erode district under the CLRI- CSIRO project.
Rare Earth Alternatives for Chromium Pigments:
Development of pre-competitive technologies for colorants based on rare earth compounds and standardization of viable and environmentally benign processes which will provide an area of advantage for the India was identified under the New Millennium Indian Technology Leadership Initiative (NMITLI). The aim is to develop such processes and products which will gain for the country knowledge products of high economic significance and leadership potentials in technology. Since rare earth elements exhibit similar aqueous chemistry, separation and purification steps are demanding and add to the cost of down stream products like pigments. Potential for direct use of mixed rare earth compounds for colorant applications was identified. Accordingly in the first phase of the project during 2004 – 2005, CLRI targeted the preparation of pigments from mixed rare earth carbonates sourced from Indian Rare Earths Limited. 24 shades of brown, blue and green were prepared. Mixed rare earth based brown colorant and mixed rare earth doped blue and green colorants were important leads emerging from first phase of this project. Accordingly, in the second phase of this project, methods for improving the mass tone and tinting strength of these pigments through appropriate modifications in the preparation steps, pigment particle size etc have been taken up. The utility of the mixed rare earth carbonate based brown pigment as an exterior coat as well as in leather finishing has been demonstrated.
ENVIRONMENTAL SUSTAINABILITY : AVOIDANCE OF FORMALDEHYDE
Formaldehyde free synthetic tanning agents:
Conventional synthetic tanning agents are prepared by condensation of naphthalene/phenol sulfonic acid or urea with formaldehyde. Stringent environmental regulations have forced the leather chemical industry to opt for formaldehyde free products. A polymeric syntan which contains naphthalene sulfonic acid and acrylic polymer to give the necessary molecular weight as well as suitable ligating sites to keep the metal ion in complexed form has been developed. Two products Ecosyn and Ecochrome have been developed, patented and commercialized to M/s. Balmer Lawrie and Co. Ecosyn is a metal and formaldehyde free synthetic tanning agent which finds use in pickle free chrome tanning. Delimed pelt treated with Ecosyn followed by BCS for tanning results in fuller, softer leathers. The chromium uptake is above 90% and a reduction in COD, TDS and chlorides by 50, 80 and 98% respectively has been observed.
A chrome – melamine syntan based on formaldehyde free crosslinking was developed. The product – first of its kind in the world coupled the benefits of chrome tanning with the fullness that melamine provides to the belly – leading to increased cutting value for leather. The product has been commercialized to M/s. Sellam Chemicals.
ENVIRONMENTAL & ECONOMIC SUSTAINABILITY:
COMPLIANCE TO REGULATIONS AND TIME & MATERIAL REDUCTION
A retanning cum fatliquoring agent based on transesterification of oil and devoid of the use of surfactants for emulsification of oils has been developed. The product comprising of natural oils and biodegradable polymers provides for retanning and fatliquoring of leather – conventionally achieved by using more than one product of two different classes of compounds, viz., aromatic/polymeric compounds and emulsified oils. Translation of product to the industry is currently underway. This product is also REACh compliant.
Tanning: Atom economy being a metrics for reaction efficiency was evaluated for chrome tanning making suitable assumptions and approximations. One such major approximation was assuming molecular weight of collagen as a measure of nitrogen content and calculating atom economy in an iterative method. The nature of this work exclusively brings importance to the tanning efficiency being measured, not only as a chromium exhaustion but taking into account for other components like sulfate ions, chloride ions and water. The comparison of conventional chrome tanning system to other chrome management technologies enables us to quantify the greenness of developed innovative system. The atom economy for conventional chrome tanning system was 29% and the best attained in this order was pickleless tanning with an atom economy of 57%. This is the first attempt to develop an atom economy measurement scale for leather processing and needs further work.
Retanning agent based on black liquor from paper and pulp industry:
By effectively using the modified lignin compounds present in black liquor retanning agents have been prepared as replacement for aromatic sulfonic acid – formaldehyde syntans. This promotes circular economy as the lifecycle of the wastes from compounds employed in paper and pulp processing are value added through leather.
Smartness to Leather:
Leather is today a worldwide mark of performance. Common man is seeking technology support for identifying sudden changes in environment - easiest means of identification being 'color'. Major concerns in the near future include sudden or unexpected release or exposure to UV radiation, such as through ozone layer depletion, toxic or dangerous gases such as hydrogen, such as from a fuel cell and presence of solvents beyond permissible limits in industrial atmosphere. Facile hydrothermal/sol-gel synthesis of three nano-sized compounds, in each of the three categories for potential applications in leather. As a UV-photo material, a rare earth carbonate (Ce/Eu) doped with terbium (Tb) was synthesized. This compound provided a green or red luminescence under UV source. Mixed oxide of PdO-TiO2 was synthesized by sol-gel technique. The oxide turns from light brown to dark grey when exposed to hydrogen gas. Synthesized iron(II) doped chromium(III) isocyanate complex demonstrated negative solvatochromism (such as pink, yellow and colorless in acetone, acetonitrile and water, respectively). It is expected that the use of such X-chromic materials as color component in leather finishing, would provide the user a visually monitorable change to his/her environment.
SOCIAL SUSTAINABILITY
Waterless Processing:
Keeping in mind the large quantities of water employed for leather processing, leather auxiliaries that can be used in environmentally benign solvents have been developed. A lubricating agent based on a ternary solvent mixture and natural oils and devoid of any process for oil modification has been developed for leather lubrication.
Cool Coatings:
A new class of environmentally benign rare earth pigments as alternatives to lead, cadmium and chromium pigments has been developed as a possible opportunity area for India to obtain technology leadership in the new millennium. While cerium doped with Mo resulted in yellow pigments, those doped with Pr and W resulted in reddish-yellow pigments and the colour turned to green/grayish green when Ce was doped with Mo and Al. Addition of fluxes such as phosphates resulted in improvement of hue and chroma along with homogeneity and crystallinity. Through appropriate doping two pigments Ce-Pr-Mo and Ce-Pr-Fe have been developed to offer a reddish brown and reddish orange colour, with over 65% reflectance in the NIR region. These pigments can well serve as cool colorants for leathers.
Sustainability Metrics:
An effort to develop sustainability metrices for the leather sector is in the initial stages. This would cover the efforts made by the industry towards environmental management both through end of pipe treatment systems and inplant control measures, their corporate social responsibilities etc.
Metrics Related to Publications
Number of Papers: 102
Aggregate Impact Factor: 351.382
IF/Paper: 3.06
H-index: 21
Total Citations (without self-citations): 1435
Total Cover Page Articles: 2
|
Sl.No |
Authors |
Article Title |
Journal or Magazine Article Title |
Journal or Magazine Volume Number and Date |
Pages |
IF (2018) |
Citations |
|
1. |
Balasubramanian, P.; Sathya, R; Sreeram, K. J; Rao, J. R; Nair B.U.; |
Natural pigment: Preparation of brown pigment from lignin biomass for coloring application |
Dyes and Pigments |
1195,2021 |
109704 |
4.8 |
- |
|
2. |
Pradeep, S.; Sathish, M Sreeram, K.J.; Rao, J.R. |
Melamine-Based Polymeric Crosslinker for Cleaner Leather Production |
ACS Omega |
16,2021 |
12965-12976 |
2.8 |
- |
|
3. |
Vedhanayagam, M.; Raja, S.I.; Molkenova, A.; Atabaev, T.S.; Sreeram K.J.; Dong-Wook Han |
Carbon Dots-Mediated Fluorescent Scaffolds: Recent Trends in Image-Guided Tissue Engineering Applications |
International Journal of Molecular Sciences |
122,2021 |
5378 |
5.1 |
- |
|
4. |
Murugappan, G.; Sreeram, K.J.; |
Nano-biocatalyst: Bi-functionalization of protease and amylase on copper oxide nanoparticles |
Colloids and Surfaces B: Biointerfaces |
1197,2021 |
111386 |
4.4 |
- |
|
5. |
Bhargavi, N.R.G.; Dhathathreyan, A.; Sreeram K.J.; |
Regulating structural and mechanical properties of pectin reinforced liposomes at fluid/solid interface |
Food Hydrocolloids |
1111, 2021 |
106255 |
7.0 |
- |
|
6. |
Bhargavi, N.R.G.; Dhathathreyan, A.; Sreeram K.J.; |
Design of pH-Induced Complex Coacervates of Gelatin and Wattle |
Colloids and Surfaces A: Physicochemical and Engineering Aspects |
202, 2020 |
125148 |
3.9 |
- |
|
7. |
Zerihun, Y.; Jayakumar, G.C.; Berhanu, A.D.; Tamilselvi, A.; Sreeram, K.J.; Rao, J.R. |
Extraction of elastin from tannery wastes: A cleaner technology for tannery waste management |
Journal of Cleaner Production |
243, 2020 |
118471 |
7.2 |
- |
|
8. |
Vedhanayagam, M.; Anandasadagopan S.; Nair B.U; Sreeram K.J.; |
Polymethyl methacrylate (PMMA) grafted collagen scaffold reinforced by PdO–TiO2 nanocomposites |
Materials Science and Engineering C |
108, 2020 |
110378 |
5.8 |
2 |
|
9. |
Tamilmani, V.; Mukhopadhyay L.; Rai V.K.; Sreeram, K.J.; Mishra A.K.; |
Dual mode luminescence from lanthanum orthovanadate nanoparticles. |
Journal of luminescence |
217, 2020 |
116761 |
3.8 |
- |
|
10. |
Yosephab, Z.; Jayakumar, G.C.; Demessie, B.A.; Tamil Selvi, A.; Sreeram, K.J.; Rao, J.R.; |
Extraction of elastin from tannery wastes: A cleaner technology for tannery waste management |
Journal of Cleaner Production |
243, 2020 |
118471 |
7.2 |
1 |
|
11. |
Murugappan, G.; Khambhaty, Y.; Sreeram, K.J.; |
Protease immobilized nanoparticles: a cleaner and sustainable approach to dehairing of skin |
Applied Nanoscience |
10, 2020 |
213-221 |
2.8 |
1 |
|
12. |
Sahu, B.; Alla , J.P.; Rao J.R.; Sreeram, K.J.; Jayakumar, G. C; |
Neoteric Oxidizing Agent for Chamois Process |
Journal of the American Leather Chemists Association | 114, 2019 | 344-349 | 0.7 | - |
|
13. |
Vedhanayagam, M.; Nair B.U.; Sreeram, K.J.; |
Dimension effect: Dendrimer functionalized carbon-based nanomaterial mediated collagen scaffold for wound healing application | Materialia | 7,2019 | 100354 | - | - |
|
14. |
Madhumitha, D.; Bruntha, A.; Vaidyanathan, V.; Gari, BNR.; Sreeram, K.J.; Dhathathreyan, A.; |
Elastic compliance as a tool to understand Hofmeister ion specific effect in DMPC liposomes | Biophysical Chemistry | 249, 2019 | 106148 | 1.9 | - |
|
15. |
Vedhanayagam, M.; Mohan, R.; Nair B.U.; Sreeram K.J.; |
Effect of functionalized gold nanoparticle on collagen stabilization for tissue engineering application |
International Journal of Biological Macromolecules |
123,2019 |
1211-1220 |
5.1 |
4 |
|
16. |
Vedhanayagam, M.; Mohan, R.; Nair B.U.; Sreeram K.J.; |
Collagen-ZnO Scaffolds for Wound Healing Applications: Role of Dendrimer Functionalization and Nanoparticle Morphology |
ACS Applied Biomaterials |
1(6), 2018 |
1942-1958 |
- | 5 |
|
17. |
Khambhaty, Y.; Akshaya, R.; Suganya, C.R.; Sreeram, K.J.; Rao, J.R.; |
A logical and sustainable approach towards bamboo pulp bleaching using xylanase from Aspergillus nidulans |
International Journal of Biological Macromolecules | 118,2018 | 452-459 | 5.1 | 5 |
|
18. |
Tamilmani, V; Soni, A.K. Rai, V.K.; Nair, B.U.; Sreeram, K.J.; |
Frequency upconversion in catechin assisted square nanoplates | Journal of Chemical Sciences |
129, 2017 |
1929-1940 | 1.4 | 4 |
|
19. |
Tamilmani, V.; Nair, B. U; Sreeram, K.J.; |
Phosphate modulated luminescence in lanthanum vanadate nanorods- Catechin, polyphenolic ligand |
Journal of Solid-State Chemistry | 252, 2017 | 158-168 | 2.7 | 2 |
|
20. |
Vedhanayagam, M.; Nidhin, M.; Duraipandy, N.; Naresh, N. D.; Jaganathan, G.; Ranganathan, M.; Kiran, M. S.; Narayan, S.; Nair, B.U.; Sreeram, K.J.; |
Role of Nanoparticle Size in Self-Assemble Processes of Collagen for Tissue Engineering Application | International Journal of Biological Macromolecules | 99,2017 | 655-664 | 5.1 | 5 |
|
21. |
Tamilmani, V.; Kumari, A.; Rai, V. K.; Nair, B. U; Sreeram, K. J.; |
Bright Green Frequency Upconversion in Catechin Based Yb3+/Er3+ Codoped LaVO4 Nanorods upon 980 nm Excitation | Journal of Physical Chemistry C | 121, 2017 | 4505-4516 | 4.1 | 15 |
|
22. |
Tamilmani, V.; Duraipandy, N.; Kiran, M. S.;Nair, B. U.; Sreeram, K. J.; |
Catechin caged lanthanum orthovanadate nanorods for nuclear targeting and bioimaging applications | Sensors and Actuators B: Chemical | 242, 2017 | 700-709 |
7.1 |
13 |
|
23. |
Gari, B. N. R; Fessehaye, S.; Aravindhan, R.; Sreeram, K. J.; Rao, J. R.; Nair, B. U.; |
Use of Ternary Solvent (Water - Ethanol - Ethyl Acetate) Medium for Leather Processing: A Possible Paradigm Change | Journal of the American Leather Chemists Association | 111, 2016 | 250-258 | 0.7 | 1 |
|
24. |
Sathya, R; Sreeram, K. J; Rao, J. R; Nair B.U.; |
Organic Nanocolorants: Self-Fixed, Optothermal Resistive, Silica-Supported Dyes for Sustainable Dyeing of Leather | ACS Sustainable Chemistry and Engineering | 4, 2016 | 2706-2714 | 7.6 | 14 |
|
25. |
Tamilmani, V.; Saraswathy, A.; Ramapurath, J.S.; Sreeram, K.J.; Nair, B.U.; |
Catechin tuned magnetism of Gd-doped orthovanadate through morphology as T-1-T-2 MRI contrast agents | Scientific reports | 6,2016 | 34976 | 3.9 | 15 |
|
26. |
Murugappan, G.; Zakir, M.J.A.; Jayakumar, G. C.; Khambhaty, Y.; Sreeram, K.J.; Rao, J.R.; |
A Novel Approach to Enzymatic Unhairing and Fiber Opening of Skin Using Enzymes Immobilized on Magnetite Nanoparticles | ACS Sustainable Chemistry and Engineering | 4, 2016 | 828-834 | 7.6 | 14 |
|
27. |
Sathish, M.; Sreeram, K.J.; Rao, J.R.; |
Cyclic carbonate: a recyclable medium for zero discharge tanning | ACS Sustainable Chemistry and Engineering | 4, 2016 | 1032-1040 | 7.6 | 14 |
|
28. |
Sathish, M.; Azhar Zakir, M.J.A.; Aravindhan, R.; Sreeram, K.J.; Rao, J.R.; |
Development of aluminum-melamine formulation for retanning application | Journal of American Leather Chemists Association | 111, 2016 | 44-52 | 0.7 | 1 |
|
29. |
Sathish, M.; Madhan, B.; Sreeram, K.J.; Rao, J.R.; |
Alternative carrier medium for sustainable leather manufacturing – a review and perspective | Journal of Cleaner Production | 1, 2016 | 49-58 | 7.2 | 26 |
|
30. |
Vedhanayagam, M.; Mohan, R; Nair B.U; Sreeram K.J.; |
Nanorod mediated collagen scaffolds as extra cellular matrix mimics | Biomedical materials | 10, 2015 | 065010 | 3.5 | 5 |
|
31. |
Yasmin, K.; Swetha, A.; Sreeram, K.J.; Rao, J.R.; Nair, B.U.; |
Dual utility of a novel, copper enhanced laccase fromTrichoderma aureoviridae | International Journal of Biological Macromolecules | 81, 2015 | 69-75 | 5.1 | 12 |
|
32. |
Bhargavi, N.R.G; Venkatesh, M.; Sreeram, K.J.; Geetha, B.; Rao, J.R.; Nair, B.U.; Mandal, A.B.; |
Emulsifiers-Free Lubrication Process using Natural Oils Dispersions in Non-Aqueous Solvents for Leather | RSC Advances | 5,2015 | 68981-68990 | 3.1 | 4 |
|
33. |
Balasubramanian, P.; Azhar Zakir, M.J.A.; Aravindhan, R.; Sreeram, K.J.; Rao, J.R.; Nair, B.U.; |
Chrome-melamine syntan: a step towards developing fuller leather | Journal of American Leather Chemists Association | 110, 2015 | 332-337 | 0.7 | 6 |
|
34. |
Azhar Zakir, M.J.A.; Sathya, R.; Aravindhan, R.; Sreeram, K.J.; Rao, J.R.; Nair, B.U.; |
Innovative material from paper and pulp industry for leather processing | Journal of Cleaner Production | 104, 2015 | 436-444 | 7.2 | 4 |
|
35. |
Jayakumar, G.C.; Sangeetha, S; Sreeram, K.J.; Rao, J.R; Nair, B.U.; |
Metal organic based syntan for multi-stage leather processing | Journal of American Leather Chemists Association | 110, 2015 | 288-294 | 0.7 | - |
|
36. |
Tamilmani, V.; kaadasan, D.; Muthazhagan, R.; Sreeram, K.J.; Rao, J.R; Nair, B.U.; |
Thermochromism for smart leathers | Journal of American Leather Chemists Association | 6, 2015 | 97-102 | 0.7 | 5 |
|
37. |
Vedhanayagam, M.; Teddy, T.K.; Sreeram, K.J.; Rao, J.R; Nair, B.U.; |
Value added leather auxiliaries from paper and pulp industry waste | Journal of American Leather Chemists Association | 110, 2015 | 295-301 | 0.7 | 2 |
|
38. |
Tamilmani, V.; Sreeram, K.J.; Rao, J.R; Nair, B.U.; |
Catechin assisted phase and shape selection for luminescent LaVO4 zircon | RSC Advances | 9, 2015 | 82513-82523 | 3.1 | 17 |
|
39. |
Dangew, N.; Punitha, V.; Sreeram K.J.; Nair, B.U.; |
An assessment of differences between butt and belly regions of Indian sheep skin | Journal of American Leather Chemists Association | 6, 2015 | 165-176 | 0.7 | 2 |
|
40. |
Bhargavi, N.R.G; Jayakumar, G.C; Sreeram, K.J; Rao, J.R; Nair, B.U.; |
Towards sustainable leather production: vegetable tanning in non-aqueous medium |
Journal of American Leather Chemists Association | 4, 2015 | 97-102 | 0.7 | 9 |
|
41. |
Sathya, R; Sreeram, K.J; Rao, J.R; Nair, B.U.; |
Hybrid composites: amalgamation of proteins with polymeric phenols as multifunctional material for leather processing | RSC Advances | 5, 2015 | 33221-33232 | 3.1 | 5 |
|
42. |
Aswathy. K.; Sangeetha, S.; Nidhin M.; Sreeram, K.J.; Fathima N.N.; |
Collagen-nanoparticle Interactions: Type I Collagen Stabilization Using Functionalized Nanoparticles |
Soft materials | 2, 2015 | 59-65 | 1.2 | 11 |
|
43. |
Kumar, M.; Velmurugan, P.; Sreeram, K. J.; Rao, J. R.; Nair, B. U.; |
Reuse of solid waste from juice industry (citrus sinensis peel) in the extraction of antioxidants with enhanced activity through polymer encapsulates for the preservation of skin | Journal of American Leather Chemists Association | 109, 2014 | 231-238 | 0.7 | 4 |
|
44. |
Nidhin, M.; Vedhanayagam, M.; Sangeetha, S.; Kiran, M.S.; Nazeer, S. S.; Jayasree, R. S.; Sreeram, K. J.; Nair B. U.; |
Fluorescent nanonetworks: A novel bioalley for collagen scaffolds and Tissue Engineering | Scientific Reports | 4, 2014 | 5968 | 3.9 | 19 |
|
45. |
Radhika, S. P; Jayakumar,G. C.; Sreeram, K. J; Nair, B. U.; |
Unique rare earth pigments for more thermally comfortable leathers | Journal of American Leather Chemists Association | 109, 2014 | 224-230 | 0.7 | 2 |
|
46. |
Nidhin, M.; Aravindhan, R.; Sreeram, K. J.; |
Green synthesis of monodispersed iron oxide nanoparticles for leather finishing | Journal of American Leather Chemists Association | 109, 2014 | 184-188 | 0.7 | 2 |
|
47. |
Radhika, S.P.; Sreeram, K.J.; Nair, B. U.; |
Mo-doped cerium gadolinium oxide as environmentally sustainable yellow pigments | ACS Sustainable Chemistry and Engineering | 2, 2014 | 1251-1256 | 7.6 | 20 |
|
48. |
Aravindhan, R.; Sreeram, K.J.; Rao J. R.; |
Development of alginate-chitosan based biopolymers for leather retanning | Journal of American Leather Chemists Association | 109, 2014 | 99-109 | 0.7 | 7 |
|
49. |
Radhika, S.P.; Sreeram, K.J.; Nair, B. U.; |
Effective synthesis route for red-brown pigments based on Ce-Pr-Fe-O and their potential application for near infrared reflective surface coating | Journal of Chemical Sciences | 126, 2014 | 2014 | 1.4 | 12 |
|
50. |
Tamilmani, V.; Sreeram, K.J.; Nair, B.U.; |
Tuned synthesis of doped rare-earth orthovanadates for enhanced luminescence | RSC Advances | 4, 2014 | 4260-4268 | 3.1 | 12 |
|
51. |
Sindhu, K.; Rajaram, A.; Sreeram, K. J.; Rajaram, R.; |
Curcumin conjugated gold nanoparticle synthesis and its biocompatibility | RSC Advances | 4, 2014 | 1808-1818 | 3.1 | 79 |
|
52. |
Usha, R; Sreeram, K.J.; Mandal, A.B.; |
Organization of collagen in the presence of diphenyl phosphoryl azide (DPPA): An in vitro study. | Colloids and surfaces. B, Biointerfaces | 109, 2013 | 121-128 | 4.3 | 8 |
|
53. |
Nidhin, M.; Nazeer, S.S.; Jayasree, R.S.; Kiran, M.S.; Nair, B.U.; Sreeram, K.J.; |
Flower shaped assembly of cobalt ferrite nanoparticles: application as T-2 contrast agent in MRI | RSC Advances | 3, 2013 | 6906-6912 | 3.1 | 27 |
|
54. |
Radhika, S.P; Sreeram, K.J.; Nair, B. U.; |
Rare earth doped cobalt aluminate blue as an environmentally benign colorant | Journal of advanced ceramics | 1,2012 | 301-309 | 2.8 | 14 |
|
55. |
Sangeetha, S.; Usha, R.; Sreeram, K.J.; Nair, B.U.; |
Enhancing collagen stability through nanostructures containing chromium(III) oxide | Colloids and surfaces. B, Biointerfaces | 100, 2012 | 36-41 | 4.3 | 24 |
|
56. |
Sangeetha, S.; Basha, R.; Sreeram, K.J.; Sangalimuthu, S. N.; Nair, B. U. |
Functional pigments from chromium(III) oxide nanoparticles | Dyes and Pigments | 94, 2012 | 548-552 | 4.6 | 60 |
|
57. |
Sageetha, S.; Fathima, N.N.; Sreeram, K.J.; Rao, J.R.; Nair, B.U.; |
Stimuli responsive leathers using smart retanning agents | Journal of American Leather Chemists Association | 107, 2012 | 196-204 | 0.7 | 6 |
|
58. |
Nidhin, M.; Sreeram, K.J.; Nair, B.U.; |
Polysaccharide films as templates in the synthesis of hematite nanostructures with special properties | Applied Surface Science | 258, 2012 | 5179-5184 | 6.1 | 12 |
|
59. |
Nidhin, M.; Sreeram, K.J.; Nair, B.U.; |
Green synthesis of rock salt CoO nanoparticles for coating applications by complexation and surface passivation with starch | Chemical Engineering Journal | 185, 2012 | 352-357 | 10.6 | 10 |
|
60. |
Usha, R.; Sreeram, K.J.; Rajaram, A.; |
Stabilization of collagen with EDC/NHS in the presence of L-lysine: A comprehensive study | Colloids and surfaces. B, Biointerfaces | 90, 2012 | 83-90 | 4.3 | 59 |
|
61. |
Sreeram, K.J.; Nidhin, M.; Nair, B.U.; |
Formation of necklace-shaped haematite Nano constructs through polyethylene glycol sacrificial template technique | Journal of Experimental Nanoscience | 7, 2012 | 399-411 | 2.1 | 3 |
|
62. |
Sreeram, K.J.; Rao, J.R.; Nair, B.U.; |
Chromium(III) pigments: use of leather wastes as alternative starting material | Journal of American Leather Chemists Association | 106, 2011 | 219-225 | 0.7 | 4 |
|
63. |
Kumar, M.P.; Aravindhan, R.; Sreeram, K. J.; Rao, J. R.; Nair, B.U.; |
Green chemistry approach in leather processing: a case of chrome tanning | Journal of American Leather Chemists Association | 106, 2011 | 113-120 | 0.7 | 10 |
|
64. |
Sindhu, K.; Indra, R.; Rajaram, A. Sreeram, K. J.; Rajaram, R.; |
Investigations on the Interaction of Gold-Curcumin Nanoparticles with Human Peripheral Blood Lymphocytes |
Journal of Biomedical Nanotechnology | 7, 2011 | 56-56 | 14.4 | 38 |
|
65. |
Sreeram, K. J.; Aravindhan, R.; Rao, J. R.; Nair, B. U.; |
Development of natural garment leathers: a metal-free approach |
Journal of American Leather Chemists Association | 105, 2010 | 401-409 | 0.7 | 7 |
|
66. |
Sreeram, K. J.; Narayan, S.; Abbineni, G.; Hayhurst, A.; Mao, C. B.; |
Architectonics of Phage-Liposome Nanowebs as Optimized Photosensitizer Vehicles for Photodynamic Cancer Therapy |
Molecular Cancer Therapeutics | 9, 2010 | 2524-2535 | 5.6 | 7 |
|
67. |
Aravindhan, R.; Maharshi, B.; Sreeram, K. J.; Rao, J. R.; Nair, B. U.; |
Biosorption of cadmium metal ion from simulated wastewaters using Hypnea valentiae biomass: A kinetic and thermodynamic study |
Bioresource Technology |
101, 2010 |
1466-1470 |
7.5 | 182 |
|
68. |
Indumathy, R.; Sreeram, K.J.; Sriranjini, M.; Aby, C.P.; Nair, B. U.; |
Bifunctional role of thiosalicylic acid in the synthesis of silver nanoparticles |
Material science and applications |
1, 2010 |
272-278 | 0.29 |
6 |
|
69. |
Sreeram, K. J.; Nidhin, M.; Nair, B. U.; |
Synthesis of aligned hematite nanoparticles on chitosan-alginate films | Colloids and surfaces. B, Biointerfaces | 71, 2009 | 260-267 | 4.3 | 35 |
|
70. |
Nataraj, R.; Aravindhan, R.; Sreeram, K. J.; Rao, J. R.; Nair, B. U.; |
Studies on the development of a multi-functional syntan |
Journal of American Leather Chemists Association |
104, 2009 |
251-260 |
0.7 | 5 |
|
71. |
Dhayalan, K.; Aravindhan, R.; Sreeram, K. J.; Rao, J. R.; |
Application of rare earth salts for permanent stabilization of skin | Journal of American Leather Chemists Association |
68, 2009 |
135-139 | 0.7 |
- |
|
72. |
Sreeram, K. J.; Nidhin, M.; Nair, B. U.; |
Microwave assisted template synthesis of silver nanoparticles | Bulletin of Materials Science | 31, 2008 | 937-942 | 1.3 | 159 |
|
73. |
Sreeram, K. J.; Aby, C. P.; Nair, B. U.; Ramasami, T.; |
Colored cool colorants based on rare earth metal ions | Solar Energy Materials and Solar Cells | 92, 2008 | 1462-1467 | 6.6 | 73 |
|
74. |
Sreeram, K. J.; Aby, C. P.; Nair, B. U.; |
Synthesis and Characterization of Doped Rare Earth Oxides for Environmentally Benign Nontoxic Reddish-yellow Pigments | Chemistry Letters | 37, 2008 | 902-903 | 1.3 | 14 |
|
75. |
Nidhin, M.; Indumathy, R.; Sreeram, K. J.; Nair, B. U.; |
Synthesis of iron oxide nanoparticles of narrow size distribution on polysaccharide templates | Bulletin of Materials Science | 31, 2008 | 93-96 | 1.3 | 239 |
|
76. |
Rao, J. R.; Prakash, A.; Thangaraj, E.; Sreeram, K. J.; Saravanabhavan, S.; Nair, B. U.; |
Natural dyeing of leathers using natural materials | Journal of American Leather Chemists Association | 103, 2008 | 68-75 | 0.7 | 15 |
|
77. |
Sreeram, K. J.; Ramasamy, I.; Nair, B. U.; |
Synthesis of iron oxide nanoparticles using chitosan and starch templates | Transition Metal Chemistry | 33, 2008 | 127-131 | 1.3 | 42 |
|
78. |
Sreeram, K. J.; Kumeresan, S.; Radhika, S.; Sundar, V. J.; Muralidharan, C.; Nair, B. U.; Ramasami, T.; |
Use of mixed rare earth oxides as environmentally benign pigments | Dyes and Pigments | 76, 2008 | 243-248 | 4.6 | 21 |
|
79. |
Saravanabhavan, S.; Sreeram, K. J.; Rao, J. R.; Nair, B. U.; |
The use of toxic solid waste for the adsorption of dyes from waste streams | Journal of Chemical Technology and Biotechnology | 82, 2007 | 407-413 | 2.7 | 14 |
|
80. |
Aravindhan, R.; Sreeram, K. J.; Rao, J. R.; Nair, B. U.; |
Biological removal of carcinogenic chromium(VI) using mixed Pseudomonas strains | Journal of General and Applied Microbiology | 53, 2007 | 71-79 | 1.4 | 32 |
|
81. |
Aby, C. P.; Sreeram, K. J.; Nair, B. U.; Ramasami, T.; |
Doped oxides of cerium as inorganic colorants | Coloration Technology | 123, 2007 | 374-378 | 1.5 | 3 |
|
82. |
Sreeram, K. J.; Srinivasan, R.; Devi, J. M.; Nair, B. U.; Ramasami, T.; |
Cerium molybdenum oxides for environmentally benign pigments | Dyes and Pigments | 75, 2007 | 687-692 | 4.6 | 77 |
|
83. |
Sreeram, K. J.; Indumathy, R.; Rajaram, A.; Nair, B. U.; Ramasami, T.; |
Template synthesis of highly crystalline and monodisperse iron oxide pigments of nanosize | Materials Research Bulletin | 41, 2006 | 1875-1881 | 4.0 | 38 |
|
84. |
Sreeram, K. J.; Rao, J. R.; Chandrababu, N. K.; Nair, B. U.; Ramasami, T.; |
High exhaust chrome-aluminium combination tanning: Part 1. Optimization of tanning |
Journal of American Leather Chemists Association | 101, 2006 | 86-95 | 0.7 | 14 |
|
85. |
Sreeram, K. J.; Ramalingam, S.; Rao, J. R.; Chandrababu, N. K.; Nair, B. U.; Ramasami, T.; |
Direct chrome liquor recycling under Indian conditions: Part 2. Pilot scale tanning studies | Journal of American Leather Chemists Association | 100, 2005 | 257-264 | 0.7 | 2 |
|
86. |
Sreeram, K. J.; Ramalingam, S.; Rao, J. R.; Chandrababu, N. K.; Nair, B. U.; Ramasami, T.; |
Direct chrome liquor recycling under Indian conditions: Part 1. Role of chromium species on the quality of leather | Journal of American Leather Chemists Association | 100, 2005 | 233-242 | 0.7 | 2 |
|
87. |
Madhan, B.; Sreeram, K. J.; Sharli, A.; Rao, J. R.; Nair, B. U.; |
An integrated approach for the treatment of vegetable tanning wastewaters | Journal of the Society of Leather Technologists and Chemists | 89, 2005 | 9-14 | 0.4 | 3 |
|
88. |
Saravanabhavan, S.; Sreeram, K. J.; Rao, J. R.; Nair, B. U.; |
The three pot solution for chromium, tannins and solid wastes: Recovery and reuse technique for spent semi-chrome liquor and chrome shavings | Journal of the Society of Leather Technologists and Chemists | 88, 2004 | 202-207 | 0.4 | 12 |
|
89. |
Sreeram, K. J.; Saravanabhavan, S.; Rao, J. R.; Nair, B. U.; |
Use of chromium-collagen wastes for the removal of tannins from wastewaters | Industrial and Engineering Chemistry Research | 43, 2004 | 5310-5317 | 3.5 | 26 |
|
90. |
Shrivastava, H. Y.; Sreeram, K. J.; Nair, B. U.; |
Aggregation of mucin by chromium(III) complexes as revealed by electrokinetic and rheological studies: Influence on the tryptic and O-glycanase digestion of mucin | Journal of Biomolecular Structure and Dynamics | 21, 2004 | 671-680 | 3.1 | 2 |
|
91. |
Rao, J. R.; Thanikaivelan, P.; Sreeram, K. J.; Nair, B. U.; |
Tanning studies with basic chromium sulfate prepared using chrome shavings as a reductant: A call for 'wealth from waste' approach to the tanning industry | Journal of American Leather Chemists Association | 99, 2004 | 170-176 | 0.7 | 13 |
|
92. |
Sreeram, K. J.; Aravindhan, R.; Raghava, J.; Rao, J. R.; Nair, B. U.; |
Mixed metal complexes of zirconium: A step towards reducing usage of chromium in tanning | Journal of American Leather Chemists Association | 99, 2004 | 114-122 | 0.7 | 13 |
|
93. |
Sreeram, K. J.; Shrivastava, H. Y.; Nair, B. U.; |
Studies on the nature of interaction of iron(III) with alginates | Biochimica et Biophysica Acta-Gen. Subjects | 1670, 2004 | 121-125 | 3.6 | 65 |
|
94. |
Sreeram, K. J.; Tiwari, M. K.; Ramasami, T.; |
Some studies on recovery of chromium from chromite ore processing residues | Indian Journal of Chemistry Section A – Bioinorganic | 42, 2003 | 2447-2454 | - | 3 |
|
95. |
Maheshwari, R.; Sreeram, K. J.; Dhathathreyan, A. |
Surface energy of aqueous solutions of Hofmeister electrolytes at air/liquid and solid/liquid interface |
Chemical Physics Letters |
375, 2003 |
157-161 |
2.2 |
33 |
|
96. |
Sreeram, K. J.; Ramasami, T |
Sustaining tanning process through conservation, recovery and better utilization of chromium |
Resources Conservation and Recycling |
38, 2003 |
185-212 |
8.0 |
232 |
|
97. |
Rao, J. R.; Thanikaivelan, P.; Sreeram, K. J.; Nair, B. U |
Green route for the utilization of chrome shavings (chromium-containing solid waste) in tanning industry |
Environmental Science and Technology |
36, 2002 |
1372-1376 |
7.1 |
107 |
|
98. |
Sreeram, K. J.; Ramasami, T. |
Speciation and recovery of chromium from chromite ore processing residues |
Journal of Environmental Monitoring |
3, 2001 |
526-530 |
2.491 |
25 |
|
99. |
Sreeram, K. J.; Rao, J. R.; Nair, B. U.; Ramasami, T. |
Approaches towards elucidating the mechanism of tanning using an organo-zirconium complex |
Journal of American Leather Chemists Association |
95, 2000 |
359-367 |
0.7 |
12 |
|
100. |
Sreeram, K. J.; Kanthimathi, M.; Rao, J. R.; Sundaram, R.; Nair, B. U. |
Development of an organo-zirconium complex - Organozir as possible alternative to chromium |
Journal of American Leather Chemists Association |
95, 2000 |
324-332 |
0.7 |
18 |
|
101. |
Sreeram, K. J.; Rao, J. R.; Nair, B. U.; Ramasami, T. |
Effect of nature of alkali on the zeta potential, colour and particle size of chromium(III) hydroxide |
Journal of Scientific and Industrial Research |
59, 2000 |
569-574 |
0.5 |
1 |
|
102. |
Thanikaivelan, P.; Geetha, V.; Rao, J. R.; Sreeram, K. J.; Nair, B. U. |
A novel chromium-iron tanning agent: Cross-fertilization in solo tannage |
Journal of the Society of Leather Technologists and Chemists |
84, 2000 |
82-87 |
0.4 |
30 |
|
103. |
Sreeram, K. J.; Rao, J. R.; Sundaram, R.; Nair, B. U.; Ramasami, T |
Semi-continuous recovery of chromium from waste water |
Green Chemistry |
2, 2000 |
37-41 |
9.5 |
34 |
|
104. |
Sreeram, K. J.; Rao, J. R.; Venba, R.; Nair, B. U.; Ramasami, T |
Factors in gravitational settling of chromic hydroxide in aqueous media |
Journal of the Society of Leather Technologists and Chemists |
83, 1999 |
111-114 |
0.4 |
7 |
|
105. |
Chandrasekaran, B.; Rao, J. R.; Sreeram, K. J.; Nair, B. U.; Ramasami, T. |
Chrome tanning: State-of-art on the material composition and characterization |
Journal of Scientific and Industrial Research |
58, 1999 |
1-10 |
0.5 |
40 |
No. of Books authored : 5 (Chapter Contribution)
Edited : 1
|
S.No |
Title |
Role |
Publisher |
Year of Publication |
|
1 |
Technology Roadmap Manufacturing – Leather |
Co author |
TIFAC, DST |
2017 |
|
2 |
Technology Roadmap Manufacturing |
Editor |
TIFAC, DST |
2017 |
|
3 |
Engineering of Polymers and Chemical Complexity, Volume I: Current State of the Art and Perspectives |
Co author |
CRC Press |
2014 |
|
4 |
Chapter 4 Industrially relevant nanoparticles – hematite. In Advanced Nanomaterials: Synthesis, Properties and Applications |
Co author |
CRC Press |
2014 |
|
5 |
Encyclopedia of Metalloproteins – Chromium and Leather |
Co author |
Springer. ISBN: 978-1-4614-1532-9 |
2013 |
|
6 |
Advances in Industrial Wastewater Treatment (Goel PK ed) - Some Strategies Towards Mitigation of Pollution From Tanneries: A Review; |
Co author |
Technoscience Publications, Jaipur, India: ISBN: 978-8-1857-7161-8 |
2003 |
| Sl.No | Patent.No. | Appln. No | Date of Filing | Patent Details |
| 1. |
|
2727/DEL/2014 |
A novel silica based organic colorant for leather and a process for the preparation thereof; S Ramalingam, KJ Sreeram, JR Rao, BU Nair |
|
| 2. |
|
2704/DEL/2014 |
An improved tanning process; M Sathish, KJ Sreeram, B Madhan, JR Rao, BU Nair |
|
| 3. |
|
1786/DEL/2014 | A waterless tanning process for making leather; S Silambarasan, GC Jayakumar, P Thanikaivelan, KJ Sreeram, JR Rao, BU Nair | |
| 4. |
|
937/DEL/2014 |
A novel melamine-chrome complex for leather processing and a process for the preparation thereof; KJ Sreeram, S Sangeetha, GC Jayakumar, JR Rao, BU Nair |
|
| 5. | 86/DEL/2014 |
An inorganic blue colorant and a process for the preparation thereof; KJ Sreeram, S Radhika, BU Nair |
||
| 6. |
|
3812/DEL/2013 |
An improved post tanning process for leather; GC Jayakumar, KJ Sreeram, R Usha, A Dhathathreyan, JR Rao, BU Nair |
|
| 7. |
|
3193/DEL/2012 | 12/10/2012 | A condensate of amino resin with polysaccharide and/or polyphenol and a process for the prepaparation thereof; KJ Sreeram; S Sangeetha; JR Rao, BU Nair |
| 8. |
|
0648/DEL/2007 | 23/03/2007 | A process for the preparation of novel synthetic tanning agent; P Nataraj, S Subramani, R Aravindhan, KJ Sreeram, JR Rao, BU Nair, T Ramasami |
| 9. |
247593 |
1276/DEL/2005 | 31/03/2005 |
A process for making wet-pink leather; M Chandrabose, NN Fathima, KJ Sreeram, JR Rao, BU Nair and T Ramasami (US Patent No. 7252687 dated 7/8/2007) |
| 10. |
252904 |
3333/DEL/2005 | 09/12/2005 |
Nanosized sulphide compounds of cerium and a process for the preparation thereof; KJ Sreeram, HY Srivastava, BU Nair, T Ramasami, UV Varadaraju (US Patent No. 7247291 dated 24/07/2007) |
| 11. |
237487 |
1262/DEL/2005 | 31/03/2005 |
A process for the preparation of inorganic colorants from mixed rare earth compounds; KJ Sreeram, BU Nair, T Ramasami (US Patent No. 7279036 dated 9/10/2007) |
| 12. |
229249 |
1093/DEL/2002 | 30/10/2002 |
A process for simultaneous recovery of chromium and iron from chromite ore processing residue; KJ Sreeram, T Ramasami (US Patent No. 7220394 dated 22/05/2007) |
| 13. |
244012 |
906/DEL/2000 | 06/10/2000 |
A process for the preparation of a novel synthetic tanning agent; M Kanthimathi, P Thanikaivelan, KJ Sreeram, JR Rao, R Sundaram, BU Nair, T Ramasami |
| 14. |
216560 |
446/DEL/1999 | 19/03/1999 |
A process for the preparation of a novel chromium-iron complex for use in leather industry; JR Rao, KJ Sreeram, P Thanikaivelan, BU Nair, T Ramasami |
| 15. |
215050 |
3077/DEL/1998 | 20/10/1998 |
A process for the preparation of novel organometallic polymeric matrix useful as tanning agent; KJ Sreeram, M Kanthimathi, JR Rao, R Sundaram, BU Nair, T Ramasami |
Important Popular Articles
Highlights of Patents/Copyrights/Trade Marks/IPR Granted/Applied
India - 9/19, US - 4/5
|
Sl.No |
Application Number |
Title |
Application Date |
Status |
|
1. |
201911009347 |
A novel fatliquor for leather processing and a process for the preparation thereof |
Just submitted |
TRL 4* CSIR-FTT |
|
2. |
3120/DEL/2015 |
An improved process for making retanned leather with dyeing effect |
30/09/2015 |
Under examination TRL 4* CSIR-FTT |
|
3. |
2352/DEL/2015 |
A process for curing cum dehairing of hide/skin |
31/07/2015 |
Under examination TRL 4 Industry Demo done |
|
4. |
1980/DEL/2015 |
An inorganic yellow pigment for industrial applications and a process for the preparation thereof |
01/07/2015 |
Under examination TRL 4 100 g level |
|
5. |
2727/DEL/2014 |
A novel silica based organic colourant for leather and a process for the preparation thereof |
23/09/2014 |
Under examination TRL 3 10 g level |
|
6. |
2704/DEL/2014 |
An improved tanning process |
22/09/2014 |
Under examination TRL 3 |
|
7. |
1786/DEL/2014 |
A waterless tanning process for making leather |
02/07/2014 |
Under examination TRL 6 |
|
8. |
937/DEL/2014 |
A novel melamine-chrome complex for leather processing and a process for the preparation thereof |
01/04/2014 |
Amended Stage TRL 6 Commercialized |
|
9. |
86/DEL/2014 |
An inorganic blue colorant and a process for the preparation thereof |
13/01/2014 |
Application Examined TRL 4 |
|
10. |
3812/DEL/2013 |
An improved post tanning process for leather |
30/12/2013 |
Amended Stage TRL 3 |
|
11. |
3193/DEL/2012 |
A condensate of amino resin with polysaccharide and/or polyphenol and a process for preparation thereof |
12/10/2012 |
Granted IN 300047 TRL 4 |
|
12. |
648/DEL/2007 11/877878 (US) |
A tanning composition and a process for the preparation thereof |
23/03/2007 |
Granted IN 262820 TRL 3 |
|
13. |
3333/DEL/2005 11/365763 (US) |
Nano sized sulfide compounds of cerium and a process for the preparation thereof |
09/12/2005 |
Granted IN 252904 US 7247291 TRL 3 |
|
14. |
1276/DELNP/2005 11/020501 (US) |
A process for making wet-pink leather |
31/03/2005 |
Granted IN 247593 US 725687 TRL 4 |
|
15. |
1262/DELNP/2005 11/021566 (US) |
A process for the preparation of inorganic colorants from mixed rare earth compounds. |
31/03/2005 |
Granted IN 237487 US 7279036 TRL 4 |
|
16. |
1093/DEL/2002 10/3000540 (US) |
A process for simultaneous recovery of chromium and iron from chromite ore processing residue |
30/10/2002 |
Granted IN 229249 US 7220394 TRL 3 |
|
17. |
906/DEL/2000 |
A process for the preparation of a novel synthetic tanning agent. |
06/10/2000 |
Granted IN 244012 TRL 6 Commercialized |
|
18. |
446/DEL/1999 |
A process for the preparation of a novel chromium-iron complex for use in leather industry |
19/03/1999 |
Granted IN 216560 TRL 3 |
|
19. |
3077/DEL/1998 |
A process for the preparation of novel organo-metallic polymeric matrix useful as tanning agent |
20/10/1998 |
Granted IN 215050 TRL 6 Commercialized |
Highlights of Technologies Developed, Licensed and/or Commercialized
|
Sl.No |
Technology |
Current Status |
Client |
|
1. |
Melamine-chrome complex for leather processing |
Commercialized 2017 |
M/s. Sellam Chemicals |
|
2. |
Waterless tanning process |
Commercialized 2017 onwards |
Multiple licenses - 90 |
|
3. |
High Exhaust Chrome Tanning Salt |
Commercialized 2014 |
M/s. Rishab Intermediates |
|
4. |
Self Basified basic chromium sulfate |
Commercialized 2011 |
M/s. Sri Kanakadurga chromate (P) Ltd. |
|
5. |
Single step dehairing and fibre opening |
Commercialized 2010 |
M/s. SPIC India |
|
6. |
Chrome tanning using TANAID |
Commercialized 2004 |
M/s. KKSK Leather Processors (P) Ltd. |
|
7. |
Basic chromium sulfate |
Commercialized 2004 |
M/s. Sri Rakka-Chem. Syntans |
|
8. |
Synthetic tanning agent |
Commercialized 2000 |
M/s. Balmer Lawrie & Co. |
|
9. |
Clarichrome |
Commercialized 1996 |
M/s. Quinn India Group of Companies |
|
10. |
Claritan AL |
Commercialized 1996 |
M/s. Quinn India Group of Companies |
|
11. |
Chrome recovery / reuse for wool-on sheep skin process |
Commercialized 1996 |
M/s. Hindustan Lever Limited |
|
12. |
Organo-metallic polymeric matrix useful as tanning agent |
Commercialized 2003 |
M/s. Balmer Lawrie & Co. |
|
13. |
Utilization of hydrogen peroxide for treatment of tannery wastes |
Commercialized 1996 |
M/s. Asian Peroxides Ltd. |
|
14. |
Chromium-iron complex for use in leather industry |
Developed |
|
|
15. |
Simultaneous recovery of chromium and iron from chromite ore processing residue |
Developed |
|
|
16. |
Inorganic colorants from mixed rare earth compounds |
Developed |
|
|
17. |
Wet-pink leather |
Developed |
|
|
18. |
Nano sized sulfide compounds of cerium |
Developed |
|
|
19. |
Tanning composition |
Developed |
|
|
20. |
Condensate of amino resin with polysaccharide and/or polyphenol |
Developed |
|
|
21. |
Improved post tanning process |
Developed |
|
|
22. |
Inorganic blue colorant |
Developed |
|
|
23. |
Improved tanning process |
Developed |
|
|
24. |
Silica based organic colorant for leather |
Developed |
|
|
25. |
Inorganic yellow pigment for industrial applications |
Developed |
|
|
26. |
Process for curing cum dehairing of hide/skin |
Developed |
|
|
27. |
Process for making retanned leather with dyeing effect |
Developed |
CSIR FTT |
|
28. |
Retanning cum fatliquoring agent |
Developed |
CSIR FTT |
|
29. |
Leather as a sensor for UV light, Hydrogen gas and Heat |
Developed |
|
Highlights of Technical Consultancy and Testing Services carried out
|
Sl.No/Year |
Technical Service Rendered |
Budget Amount (INR) |
Contribution |
|
1. /1996 |
Utilization of hydrogen peroxide for the treatment of tannery wastes |
100000 |
· Analytical support |
|
2. /2004 |
Process for the reduction of hexavalent chromium from chromite mine tailings |
50000 |
· Research on vegetable tannin materials · Analytical support |
|
3. /2011 |
Expert intervention towards capacity building of leather industry development institute (LIDI), Ethiopia through Twinning program |
150000000 |
· Setting up of R&D laboratory · Initiating MSc level research |
|
4. /2013 |
Sector specific study and report for tannery chrome chemical sector in West Bengal |
3750000 |
· Proposal for management of chromium in landfills · Analytical support |
|
5. /2013 |
Assessing potential of pentaerythritol solution and sodium formate solution |
500000 |
· Development of BCS · Analytical support |
|
6. /2015 |
Twinning II- Value added Activities for the sustenance of capacity Building for Leather Industry Development Institute (LIDI) Ethiopia to meet the extended requirements of Ethiopian Leather and Leather Products sector |
110499999 |
· Accreditation for their testing laboratory · Interlaboratory comparison studies · Training of analytical staff |
|
7. /2015 |
Direct chrome liquor recycling |
400000 |
· Analytical support |
|
8. /2016 |
Conducting pre-dispatch inspection and post supply inspection for procurement of footwear for the year 2016-17 to TNTB & ESC. |
22685150 |
· Project Leader · Testing and quality assurance to Government of Tamil Nadu |
|
9. /2017 |
Conducting tender sample evaluation for procurement of footwear by Chhattisgarh State Minor Forest Produce Cooperative Federation |
2000000 |
· Project Leader · Testing and quality assurance |
|
10. /2018 |
Pre dispatch Inspection, pre and post testing charges for Ankle boots, Footwear ,School Bags and socks samples to TNTB&ESC |
10368980 |
· Project Leader · Testing and quality assurance |
|
11. /2018 |
Quality Testing of Canvas Men's Shoes and Canvas Ladies Chappal Produced by Madhya Pradesh. |
8000000 |
· Project Leader · Testing and quality assurance |
| Sponsored/Consultancy Projects | |
| 1. | M/s. Tata Steel, Jamshedpur |
| 2. | M/s. Sri Rakka Chemicals, Chennai |
| 3. | M/s. Balmer Lawrie & Co. Ltd., Kolkata |
| 4. | M/s. Hindustan Lever Limited, Panruti |
| 5. | M/s. KKSK Leathers, Erode |
| 6. | M/s. Kanakadurga Chromates, Nellore |
| Salient Features of Sponsored/Consultancy Projects | |
| a. | Can there be a replacement for Fe(II) sulfate for reducing Cr(VI) in chromite fines? |
|
Issue addressed: Chromite fines and during this process generates Cr(VI) in the ore, limits for which was 0.03 ppm. They were employing an Fe(II) sulfate washing, which led to large quantities of sulfate in the chromite ore leading to unacceptable color. After a careful analysis of the redox potentials, Dr Sreeram’s group identified a natural source – Myrobalan, spraying of which resulted in complete reduction of Cr(VI), within a contact time of 5 sec. Added advantage of the process was that it also prevented any further formation of Cr(VI) |
|
| b. | Making high exhaust basic chromium(III) sulfate |
|
The group at Chemical laboratory, CLRI has a good understanding of how uptake of chromium in tanning process can be tuned through preparation of the tanning salt. Dr Sreeram’s contribution to this project was the optimization of Cr(VI) to reducing agent ratio and the role of temperature to ensure that dimeric Cr(III) was formed as against the cyclic tetramer. |
|
| c. | Can we enhance chromium uptake through tanning aid? |
|
One of the requirements of the leather processing activity is to ensure that penetration of chromium preceeds its fixation. Towards this several exhaust aids are employed. However, they either have formaldehyde as a crosslinker or result in improper binding of chromium. Dr Sreeram and colleagues developed a polymeric synthetic tanning agent that when offered prior to chrome tanning ensure complete uptake of chromium and also provided for fuller leather. The aid also enabled avoidance of pickling, a process prior to tanning which resulted in high salinity in wastewater. TANAID is a very successful product. |
|
| d. | Moving from batch to continuous chrome recovery? |
|
Nucleation and particulation chemistry tells us that slower the nucleation process larger the aggregate and for this reason the precipitation of chromium(III) to chromium(III) hydroxide as a part of recovery/reuse of chromium in tannery wastewaters employed MgO. However, MgO turns to MgSO4 causing hardness to water. When large quantities of oil is present, the formation of magnesium soaps hampers the precipitation, a case observed at M/s. Hindustan Lever Ltd., where they were processing sheep skin. Through appropriate study of the zeta potentials associated with the precipitation process, Dr Sreeram was able to design a reactor which not only provided for lesser sludge volume when using sodium carbonate but also turned the reaction from one of batch type (limitation from poor solubility of MgO) to a continous reactor |
|
| e. | What limits direct recycling of chromium? |
| When a tanner tries to recycle the spent chrome tanning wastewater directly into the next batch, it results in surface fixation thus leading to the need for recovery as hydroxide and reuse. Through understanding of chromium chemistry, it was found that the spent liquor containing significant proportion of large sized tetracyclic tetrameric species was the cause for surface fixation. A process by which the pH of the spent liquor was reduced to less than 1 resulted in a liquor carrying dimeric species. A package complete with engineering design for reaction vessel for pH adjustment, feeding into drum etc. was provided to a tanner in Erode district of TN. | |
| f. | How do you tune a self-basifying chromium? |
|
In leather processing, after the penetration of chromium is achieved, the chrome tanning salts are bridged through a process called basification. This is an additional step. Taking cue from the precipitation chemistry studied earlier a self basifying chromium carrying Cr(III) and MgO was developed and provided. |
|
| Ten Most Significant Refereed Journal Papers | ||||||
| Sl.No |
Authors |
Title of paper | Journal | Vol/Year | Pg. Nos | Citations |
| 1. | Nidhin, M.; Indumathy, R.; Sreeram, K. J.; Nair, B. U | Synthesis of iron oxide nanoparticles of narrow size distribution on polysaccharide templates | Bulletin of Materials Science | 31, 2008 | 93-96 | 62 |
| 2. | Sreeram, K. J.; Srinivasan, R.; Devi, J. M.; Nair, B. U.; Ramasami, T. | Cerium molybdenum oxides for environmentally benign pigments | Dyes and Pigments | 75, 2007 | 687-692 | 38 |
| 3. | Sreeram, K. J.; Shrivastava, H. Y.; Nair, B. U | Studies on the nature of interaction of iron(III) with alginates | Biochimica et Biophysica Acta-Gen. Subjects | 1670, 2004 | 121-125 | 38 |
| 4. | Sreeram, K. J.; Nidhin, M.; Nair, B. U. | Microwave assisted template synthesis of silver nanoparticles | Bulletin of Materials Science | 31, 2008 | 937-942 | 35 |
| 5. | Sreeram, K. J.; Aby, C. P.; Nair, B. U.; Ramasami, T. | Colored cool colorants based on rare earth metal ions | Solar Energy Materials and Solar Cells | 92, 2008 | 1462-1467 | 30 |
| 6. | Sindhu, K.; Indra, R.; Rajaram, A. Sreeram, K. J.; Rajaram, R. | Investigations on the Interaction of Gold-Curcumin Nanoparticles with Human Peripheral Blood Lymphocytes | Journal of Biomedical Nanotechnology | 7, 2011 | 56-56 | 29 |
| 7. | Sreeram, K. J.; Indumathy, R.; Rajaram, A.; Nair, B. U.; Ramasami, T. | Template synthesis of highly crystalline and monodisperse iron oxide pigments of nanosize | Materials Research Bulletin | 41, 2006 | 1875-1881 | 26 |
| 8. | Nidhin, M; Nazeer, SS; Jayasree, RS; Kiran, MS; Nair, BU; Sreeram, KJ | Flower shaped assembly of cobalt ferrite nanoparticles: application as T-2 contrast agent in MRI | RSC Advances | 3, 2013 | 6906-6912 | 9 |
| 9. | Sangeetha, S; Usha, R; Sreeram, KJ; Nair, BU | Enhancing collagen stability through nanostructures containing chromium(III) oxide | Colloids and surfaces. B, Biointerfaces | 100, 2012 | 36-41 | 6 |
| 10. | Sangeetha, S.; Basha, R.; Sreeram, K.J.; Sangalimuthu, S. N.; Nair, B. U. | Functional pigments from chromium(III) oxide nanoparticles | Dyes and Pigments | 94, 2012 | 548-552 | 6 |
 |
| Research in a Nutshell | |
|
Sustainable chemistry is the central theme of research of Dr KJ Sreeram. His research during the last ten years have been predominantly dominated towards using nanoscience to develop solutions to existing problems in coloring and tanning industries. |
|
Nanoscience inputs for colorants and added advantages thereon |
|
| Synthesis of iron oxide nanoparticles in the nano range has been very exciting and challenging area of research. Sensitivity of the preparative strategy complicates both reproducibility and scale up of the process. Dr Sreeram has done brilliant work in advancing the field of hematite nanoparticles, especially in the design and template based synthesis of highly monodisperse α-Fe2O3 nanoparticles, a class of superparamagnetic particles with a wide range of applications. To tune the size and shape of the nanoparticles, he designed self-assembled films of chitosan-alginate, chitosan-pectin and starch on to which Fe2+ centres could interact in a spatially separated manner. This was followed by a careful calcination of the film to provide for nanoparticles below 30 nm and having a polydispersity index of less than 0.15. Dr Sreeram was the first investigator to demonstrate the synthesis of hematite nanoparticle using sacrificial polysaccharide templates – in more than three ways, viz., calcination of dried polysaccharide – iron complex, calcination of polysaccharide films carrying Fe2+ centres and low temperature reflux synthesis from Fe-starch complexes (2 papers in these area have put together received 100 citations). He has demonstrated that these procedures can be extended to synthesis of CoO and cobalt ferrite nanoparticles as well. He has shown that these iron oxide nanoparticles can be used crosslink collagen leading to several biomedical applications. Cobalt ferrite nanoparticles synthesized by this method also had an unusual MRI contrast (9 citations within one year of publication). He built on this early work in the construction of functionally useful nanomaterials that were optimized for high luminescence through a natural product – catechin based tuning of size, shape and polymorph character. One of the significance of Dr Sreeram’s work has been that all the synthesized nanoparticles are tested for their toxicity to various cells. For instance, his work on how gold nanoparticles, synthesized through a green route using curcumin as a reducing agent, would interact with human peripheral blood lymphocytes has been much discussed by the research community. |
|
Finding replacement to toxic transition metal ion based pigments in rare earths |
|
| Dr Sreeram today is a leader in the exciting new area of material chemistry, viz. the development of rare earth based pigments. He has done landmark work that has advanced the applications of rare earth oxides as pigments for coloring plastics, ceramic and leather. Through careful tuning of the bandgap energies by appropriate doping into the lanthanide lattice (light RE), colors in the range of blue, yellow and brown-red have been obtained. The mass tone, hiding power, tint strength and applications as colorant for leather, plastics and exteriors have been optimized through a new route of synthesis, viz., sol-gel-microwave irradiation as against the conventional solid state synthesis. His publications in this area have been well received (over 200 citations). Understanding that such products can only be cost effective when raw material costs are brought down, Dr Sreeram developed a process for the preparation of these pigments from mixed rare earth chlorides – a byproduct of the thorium extraction process. M/s. Indian Rare Earths Limited investigated the upscalability of this process at their Kollam unit. M/s. IREL suggested that the process was viable and marketable. | |
Exploiting size and shape tuning for deeper applications such as turning leather into sensors and developing cool pigments |
|
| The thrust of Dr Sreeram’s research has been the deepening of the applications of existing knowledge through modifications in synthesis strategies, size tuning etc. His work on turning phenomena of chromism into an attractive option for obtaining smart leathers, such as the use of doped chromium(III) isocyanate as surface coating on leather to get solvato or thermo-chromism based effects, coating leather with RE complexes to obtain UV sensing ability and use of PdO-ZnO nanocomposites as surface coatings to turn leather from brown to black on exposure to hydrogen, such as when hydrogen leaks from a gas driven vehicle has attracted the attention of leather community. He proposed that the addition of a rare earth metal ion and/or reducing the crystal size of resultant pigment to less than 10 nm could result in near infra red reflectivity from the coated surface. Range of pigments whose, solar irradiance R* values were 10-30 units more than commercial pigments were developed and tested by his group. The advantage of such pigments is to provide for thermally comfortable surfaces, where prior to this work, the color is limited to white and pastel shades. Through thermal imaging his group demonstrated that the surface temperature of leather and concrete surfaces coated with the newly developed pigments were at least 3 – 5 deg. C lesser than conventional, even without a white base coat. That a light absorbing color like black could be turned into a light reflecting pigment was demonstrated through synthesis of CoO nanoparticles on polysaccharide templates, an aspect that the Chemical Engineering J covered on its Cover page. |
|
Developing sustainable chemistry for leather sector – complete with upscaling and demonstration |
|
| Dr Sreeram continues his passion for green chemistry based alternatives for chromium. Starting from his contributions to greening of chromium based industries such as methods for handling chromium ore processing residues to developing high exhaust chrome tanning methods, contributions that led to his receiving the CSIR Young Scientist Award in 2004, Dr Sreeram has gone on to develop a range of formaldehyde free synthetic tanning agents for the leather sector, a few of which have been commercialized. One of the recent innovations in this area has been the development of a chromium – melamine complex synthetic tanning agent devoid of formaldehyde as a crosslinker, specifically suited for raw material from Indian origin. He has also developed methods for converting chromium bearing solid wastes from leather sector as well as black liquor from paper and pulp industry for preparation of leather auxiliaries (over 70 citations). This aspect of his has been considered as a positive development by the leather sector, who in their vision for 2030 have suggested that leather chemicals should be developed from within the industry itself. | |
Awards
|
2002 |
Chosen as one of the 5 researchers to start research activity on Environmentally benign rare earth colorants under NMITLI mode |
|
2004 |
CSIR Young Scientist Award – Engineering Sciences |
|
2013 |
Certified researcher of International Union of Research (IUR) Commission of International Union of Leather Technologists and Chemists Societies (IULTCS) |
|
2019 |
Fellow of the Society of Leather Technologists & Chemists, UK |
|
2019 |
Fellow of the Royal Society of Chemistry, UK |
|
2020 |
Fellow of The Academy of Sciences, Chennai |
Honors
|
2004 |
Indo-UK Networking of Young Scientists – British Council in India |
|
2008 |
Prepared the CLRI Vision 2025 under the instructions of DG CSIR |
|
2008 |
DST BOYSCAST Fellowship for advanced research in material science |
|
2009 |
Moderator, XXX IULTCS, Beijing |
|
2010 |
DST-CONACYT exchange program project to work on upconversion nanoparticles along with Universidad Autónoma de Nuevo León, Mexico |
|
2010 |
Awarded a project to develop on environmentally benign rare earth pigments by the Green Chemistry taskforce of DST |
|
2010 |
Awarded a CSIR-EMPOWER project to work on collagen stabilization using functionalized nanoparticles |
|
2012 |
Appointed as Nodal Officer for CSIR-CLRI suprainstitutional project :S&T revolution in leather with a green touch (STRAIT) with budget outlay of Rs. 62.59 crores for 2013-17. |
|
2014 |
Invited to contribute a chapter on Leather - Technology Roadmap Manufacturing 2035, TIFAC, DST. |
|
2015 |
Editor, Technology Vision 2035 for the Technology Roadmap - Manufacturing Sector – TIFAC, DST |
|
2015 |
Vice President Indian Leather Technologists Association |
|
2016 |
Member BIS CHD17 - Leather |
|
2017 |
Convener – International Union of Leather Technologists and Chemists Societies Congress -2017 in India |
|
2017 |
Nodal Officer – Visit of Parliamentary Committee on S&T and Environment & Forests to CSIR-CLRI |
|
2018 |
Member, ISO TC 120 |
|
2018 |
Convener, CLRI-NAM S&T Centre, “International Training Workshop on Developing Key Parameters for Ensuring Sustainability of Leather Sector in Developing Countries” |
|
2019 |
Catalyzed approx.. Rs. 3.2 Crores per year as testing and analytical charges for the institute since 2017. |
Research Scholars
Research Work Guided at Doctoral / Post Graduate Level
|
Sl.No |
Candidate |
Title of Work |
University/College |
Year |
|
Doctoral Level |
||||
|
1. |
Sridevi J |
Development and Standardization of Testing and Evaluation Protocols for detecting Heavy metals in Herbal Formulations |
ACSIR |
Pursuing |
|
2. |
Rathi Usha K |
Studies on the use of functionalized dendrimers as auxiliaries in leather processing |
ACSIR |
Pursuing |
|
3. |
Priya N |
Approaches towards facile identification of genuine leather |
University of Madras |
Pursuing |
|
4. |
Ramadevi PV |
Role of post tanning in assessing the biodegradability of leather and development of auxiliaries that enhance biodegradability |
University of Madras |
Pursuing |
|
5. |
Bhargavi N |
Developing green methods in leather lubrication in aqueous and non-aqueous systems |
University of Madras |
Pursuing |
|
6. |
Gunavadhi M |
Studies on enhancing the applicability of enzymes in leather processing through Nanotechnology |
Anna University |
Pursuing |
|
7. |
Vedhanayagam M |
Understanding collagen-functionalized nanomaterials interactions for tuning biomedical applications |
University of Madras |
2018 |
|
8. |
Tamilmani V |
Studies on the tuned synthesis of lanthanum based nanostructures using catechin as chelating ligand for applications as bioprobe |
University of Madras |
2016 |
|
9. |
Radhika SP |
Studies on the development of rare earth doped metal oxides as pigments for thermally comfortable surfaces |
University of Madras |
2014 |
|
10. |
Nidhin M |
Size and shape selectivity in synthesis of iron and cobalt oxide nanoparticles on polysaccharide templates |
University of Madras |
2012 |
|
PG Level |
||||
|
1. |
Mohammed Kathija Beevi S |
Studies on Super hydrophobic Self-Cleaning Leathers |
Anna University, Chennai, IN |
2020 |
|
2. |
Saravanan R |
Preparation of fog resistant and flame resistant automotive upholstery leathers |
Anna University, Chennai, IN |
2019 |
|
3. |
Gowri B |
Synthesis and Characterization of Iron Dopped Red Brown Pigment |
Govt. Arts College, Kumbakonam, IN |
2018 |
|
4. |
Namratha A |
Synthesis and characterization of enzyme immobilized copper oxide nanoparticles |
Meenakshi College for Women, Chennai, IN |
2018 |
|
5. |
Jaithanya YM |
|||
|
6. |
Daniel Tesfaye |
Studies on the application of coffee husk for leather processing |
Addis Ababa institute of technology, Ethiopia |
2017 |
|
7. |
Guru Prasad K |
Synthesis of Graphene-ZnO-PdO Nanocomposite for Photocatalytic Application |
University of Madras, IN |
2015 |
|
8. |
Sowmya M |
Nanoparticles for dye degradation applications |
University of Madras, IN |
2015 |
|
9. |
Sangeetha P |
Studies on the Conformational Changes of Bovine Serum Albumin Interaction with APTES functionalized CuO Nanoparticle |
University of Madras, IN |
2014 |
|
10. |
Swetha A |
Studies on the Interaction of Cytochrome –C with 11- Mercaptodecanoic Acid Functionalized Gold Nanoparticles |
University of Madras, IN |
2014 |
|
11. |
Solomon Fessehaye |
Approaches to near zero utilization of water in post tanning operations of leather processing |
Addis Ababa institute of technology, Ethiopia |
2014 |
|
12. |
Tewodros Kasa Dada |
Manufacturing of Synthetic Tanning Agent from Kraft Lignin |
Addis Ababa institute of technology, Ethiopia |
2013 |
|
13. |
Raj Preeth D |
Studies on enhancing biomedical application of Hydroxyapatite nanoparticles |
University of Madras, IN |
2012 |
|
14. |
Rizvan Basha M |
Synthesis and Characterization of Chromium(III) Oxide Nanopigments |
University of Madras, IN |
2011 |
|
15. |
Nithyakarthikeyani R |
Development of environmentally friendly yellow pigments from rare earth metal ions |
Bharathiyar University, Tamil Nadu, IN |
2008 |
|
16. |
Hema M |
New approaches for synthesis of silver nanoparticles |
Bharathiyar University, Tamil Nadu, IN |
2008 |
|
17. |
Sumitha Menon KP |
Synthesis and characterization of Rare Earth oxides and environmentally friendly pigments for speciality applications |
University of Calicut, Kerala, IN |
2007 |
|
18. |
Sony Sukumar |
Studies on the photocatalytic degradation of reactive dyes |
University of Calicut, Kerala, IN |
2007 |
|
19. |
Shankar M |
Development of synthetic tanning agents for compact leathers: |
Anna University, IN
|
2007 |
|
20. |
Nataraj R |
Studies on the development of a multifunctional syntan |
Anna University, IN |
2007 |
|
21. |
Pradeep Kumar M |
Studies on the evaluation of atom economy for chrome tanning process |
Anna University, IN |
2007 |
|
22. |
Vasanthy K |
Investigations on the photochemical oxidation of colorants in wastewaters |
NIT Thiruchirappali, IN |
2007 |
|
23. |
Kiruthika K |
A process for the preparation of monodispersed nanosized iron oxide pigments |
NIT Thiruchirappali, IN |
2007 |
|
24. |
Kumaresan S |
Rare earths: a new class of environmentally benign colorants for leather – a feasibility study |
Anna University, IN
|
2006 |
|
25. |
Dhayalan K |
Studies on the use of rare earth salts for tanning |
Anna University, IN |
2006 |
|
26. |
Renugambal |
Synthesis and characterization of crystalline monodispersed iron oxide nanoparticles for industrial applications |
Anna University, IN |
2006 |
