Dr. Ramavatar Meena

Dr. Ramavatar Meena

Sr. Principal Scientist

Academic Qualifications

Contact Details

Dr. Ramavatar Meena

Sr. Principal Scientist

Web: https://scholar.google.co.in/citations?user=QLPn8M4AAAAJ   

rmeena@csmcri.res.in

6990 / 2567760

[82] Enzyme‑based green synthesis, characterisation, and toxicity studies of cellulose nanocrystals/fbres produced from the Vetiveria zizanioides roots agro‑waste. Richa Seth, Abha Meena, Ramavatar Meena. Environmental Science and Pollution Research, Accepted: 24 November 2022, https://doi.org/10.1007/s11356-022-24455-x. [IF : 5.190] 

[81] Feasibility study of DNA-based porous membranes as gravity-driven purifications. Ankit Singh & Ramavatar Meena*. Polymer Bulletin, 2022, DOI: https://doi.org/10.1007/s00289-022-04372-2. [IF : 2.843]

[80] Influence of Sm and Cd co-substitutions on Physical, Magnetic, Mössbauer, Electric, and Dielectric properties of Co2X hexagonal ferrites in presence of a hematite phase. Tanuj Gupta; Chetna C. Chauhan; Sher Singh Meena; Abhishek A Gor; Ramavatar Meena; Ankit Singh. Ceramics International, 48, 2022, 36802-36813, https://doi.org/10.1016/j.ceramint.2022.08.244 [IF : 5.532]

[79] Identifying other suitable and potential indigenous carrageenophytes for commercial cultivation in India. V. Veeragurunathan, Kamalesh Prasad, Rosy Alphons Sequeira,  Ramavatar Meena, Monica Gajanan Kavale, P. Gwen Grace. Aquaculture International (2022) 30:2001–2015, DOI:10.1007/s10499-022-00886-8. [IF= 2.953]

[78] Smart Hydrogel Materials. Ramavatar Meena* & Faisal Kholiya. 1st Edition, Smart Polymers Basics and Applications, Edited By Asit Baran Samui (ISBN 9780367480776; Published April 27, 2022 by CRC Press, 322 Pages).

[77] Synthesis of biodiesel from non-edible Jatropha curcas oil using potassium hydrogen sulphate-graphene oxide based composite (KHS-GOcat) catalyst. Meena, A., Singh, A., Kholiya, F., Ramavatar Meena*. IJCT, 29(2), 2022, 181-187.

[76] A hyperaccumulation pathway to hierarchically porous carbon nanosheets from halophyte biomass for wastewater remediation. A. Mahto, Ankit Singh, Kanakaraj Aruchamy, Ashok Maraddi, Gopala Ram Bhadu, Nataraj Sanna Kotrappanavara, Ramavatar Meena*. Sustainable Materials and Technologies, Volume 29, September 2021, e00292.  https://doi.org/10.1016/j.susmat.2021.e00292.  [IF= 10.681]

[75] Seaweed Polysaccharide Derived Bioaldehyde Nanocomposite: Potential Application in Anticancer Therapeutics. Faisal Kholiya, Shruti Chatterjee, Gopal Bhojani, Subrata Sen, Madan Barkume, Nirmal Kumar Kasinathan, Jyoti Kode, Ramavatar Meena*. Carbohydrate Polymers, 2020, 240, 116282,  doi:10.1016/j.carbpol.2020.116282. [IF : 10.723]

[74] Seaweed‐derived polymer‐based blue‐emitting C‐dots: synthesis, characterization and evaluation for iron sensing. F. Kholiya, S. Johari, Ramavatar Meena*. Polymer International, 2021, 70, 1309-1315, DOI 10.1002/pi.6201. [IF : 3.213]

[73] Facile preparation of agaraldehyde chitosan-based composite beads as effectual adsorbent especially towards amido black. F. Kholiya, Ankit Singh, Amit Gosai, Ramavatar Meena*. J Appl Polym Sci. 138, 2021; e50716, https://doi.org/10.1002/app.50716. [IF : 3.057]

[72] Limited-scale field trial confirmed differences in growth and agarose characteristics in life-cycle stages of industrially important marine red alga Gracilaria dura (Gracilariales, Rhodophyta). Y. Shah, N. Balar, K. Chavda, M. Mavani, M. Kolhe, K. Sambhwani, Ramavatar Meena*, K Prasad, M G. Kavale, R S Thakur, V. A. Mantri*.  Journal of Applied Phycology, 33, 1059–1070, 2021. [IF : 3.404]

[71] Forward osmosis for industrial effluents treatment – sustainability considerations. A. Mahto, K. Aruchamy, Ramavatar Meena, Mohammadreza Kamali, N. S. Kotrappanavara, Tejraj M. Aminabhavi*. Separation and Purification Technology, 2021, 254, 117568, doi.org/10.1016/j.seppur.2020.117568. [IF : 9.136]  

[70] In situ synthesis of gold nanoparticle coated composite derived from agar-aldehyde: characterization and their catalytic activity. Faisal Kholiya, M.R. Rathod, Ramavatar Meena*. Materials Today Communications, 25, 101543, 2020. [IF : 3.662]

[69] Sargassum seaweed extract enhances Macrophomina phaseolina resistance in tomato by regulating phytohormones and antioxidative activity. J. Khedia1, M. Dangariya, A. K. Nakum, P. Agarwal, A. Panda, A. K. Parida, D. R. Gangapur, Ramavatar Meena, Pradeep K. Agarwal. Journal of Applied Phycology, 32, 4373–4384, 2020. [IF : 3.404]

[68] An integrated effluent free process for the production of 5-hydroxymethyl furfural (HMF), levulinic acid (LA) and KNS-ML from aqueous seaweed extract. F. Kholiya, M. R. Rathod, D. R. Gangapura, S. Adimurthy, Ramavatar Meena*. Carbohydrate Research, 490, 107953, 2020, DOI:10.1016/j.carres.2020.107953. [IF : 2.01]

[67] Protein-Functionalized Aerogel Membranes for Gravity-Driven Separation.   Nilesh Vadodariya & Ramavatar Meena*. ACS Sustainable Chemistry & Engineering, 2019, 7, 5, 4814-4820. [IF : 9.224]

[66] Extraction and characterization of cellulose from halophytes: next generation source of cellulose fibre. Aneesha Singh, Bablesh Ranawat, Ramavatar Meena.       SN Applied Sciences (2019) 1:1311, https://doi.org/10.1007/s42452-019-1160-6.  

[65] Self-doped interwoven carbon network derived from Ulva fasciata for all solid supercapacitor devices: Solvent-less approach to a scalable synthetic route. J. P. Chaudhary, R. Gupta, A. Mahto, N. Vadodarya, K. Dharmalingm, S. K. Nataraj, Ramavatar Meena*. ACS Sustainable Chemistry & Engineering, 2019, 7, 1, 174-186. [IF : 9.224]

[64] Protein-mimicking functions of nano-size monoamido amino acids derived from polysaccharides of marine origin. D.A. Chadara, N. A. Chudasamaa, N. Vadodariya, Ramavatar Meena, K. Prasad, A. K. Siddhanta. Macromol. Chem. Phys. 2019, 220, 1900201, DOI: 10.1002/macp.201900201. [IF : 2.2] 

[63] Gracilaria debilis cultivation, agar characterization and economics: bringing new species in the ambit of commercial farming in India. V Veeragurunathan, K. Prasad, J. Malar Vizhi, N. Singh, Ramavatar Meena & V. A. Mantri. Journal of Applied Phycology, 31, 2609–2621, (2019), https://doi.org/10.1007/s10811-019-01775-z. [IF : 3.6]

[62] Sodium salts (NaI/NaBr/NaCl) for the halogenation of imidazo-fused heterocycles. Rashmi Semwal, Chitrakar Ravi,; Rahul Kumar,; Ramavatar Meena, S. Adimurthy. J. Org. Chem. 2019,  84, 2, 792-805. [IF : 4.3]

[61] Anionic carboxymethylagarose-based pH-responsive smart superabsorbent hydrogels for controlled release of anticancer drug.      H. Khan, J. P. Chaudhary, Ramavatar Meena*. International Journal of Biological Macromolecules, 124, 2019, 1220-1229, https://doi.org/10.1016/j.ijbiomac.2018.12.045. [IF : 8.025]

[60] Solvent-free production of nano-FeS anchored graphene from Ulva fasciata: A scalable synthesis of super-adsorbent for lead, chromium and dyes. A. Mahto, A. Kumar, JP Chaudhary, M. Bhatt, A. K. Sharma, P. Paul, S. K. Nataraj, Ramavatar Meena*. Journal of Hazardous Materials, 353, 2018, 190-203. [IF : 14.224]

[59] Graded agaroses directly from seaweed biomass: A sustainable tool for developing clean chemical process. N. Vadodariya, J. P. Chaudhary, H. D. Raval, Ramavatar  Meena*. Process Biochemistry, 66, 2018, 171-175. [IF : 4.3]

[58] Carboxymethylagarose-based multifunctional hydrogel with super stretchable, self-healable having film and fiber forming properties. J.P. Chaudhary, F. Kholiya, N. Vadodariya, V. M. Budheliyaa, A. Gogdaa, Ramavatar Meena*. Arabian J. Chemistry, Available online 5 Jan. 2018, https://doi.org/10.1016/j.arabjc.2017.12.034. [IF : 4.99]

[57] Development of high-performance supercapacitor electrode derived from sugar industry spent wash waste. A Mahto, R Gupta, KK Ghara, DN Srivastava, P Maiti, D K, PZ Rivera,  Ramavatar Meena*, SK Nataraj*. J Hazard Mater. 2017, 340:189-201. [IF : 14.224]

[56] Functionalized-seaweed derived graphene/polyaniline nanocomposite as efficient Energy storage electrode. R Gupta,N Vadodariya, A Mahto, J P Chaudhary,D.B. Parmar, D.N. Srivastava, S. K. Nataraj* & Ramavatar Meena*. Journal of Applied Electrochemistry, 2018, 48, 1, 37–48. [IF : 2.925]

[55] Graphene oxide reduction activity of seaweed polymer derivative: efficient bio-based alternative. N. Vadodariya, J. P. Chaudhary, F. Kholiya, M. Sharma and Ramavatar Meena*. Current Science, 2017, 113, 7, 1361-1366.

[54] Fabrication of carbon and sulphur-doped nanocomposites with seaweed polymer carrageenan as efficient catalyst for rapid degradation of dye pollutants using solar concentrator.  J. P. Chaudhary, A. Mahto, N. Vadodariya, F. Kholiya, S. K. Nataraj, Ramavatar Meena*. RSC Adv., 2016, 6, 61716-61724. [IF : 4.03]

[53] Synthesis of bio-based aldehyde from seaweed polysaccharide and its interaction with bovine serum albumin and its interaction with bovine serum albumin.  F. Kholiya, J. P. Chaudhary, N. G. Vadodariya, Ramavatar Meena*. Carbohydr Polym. 2016, 150, 278-85. [IF : 10.723]  

[52] Chitosan-Based Aerogel Membrane for Robust Oil-in-Water Emulsion Separation. Jai Prakash Chaudhary, Nilesh Vadodariya, S. K. Nataraj, Ramavatar Meena*. ACS Applied Materials & Interfaces, 2015, 7 (44), 24957-62, doi: 10.1021/acsami.5b08705. [IF : 10.383]

[51] A green and sustainable approach to utilize bio-ionic liquids for the selective precipitation of high purity agarose from an agarophyte extract. M. Sharma, J P Chaudhary, D. Mondal, Ramavatar Meena* & K Prasad*. Green Chem., 2015, 17, 2867-2873. [IF : 10.36]

[50] Fundamental studies on the feasibility of deep eutectic solvents for the selective partition of glaucarubinone present in the roots of Simarouba glauca. Kholiya F, Bhatt N, Rathod MR, Ramavatar Meena, Prasad K.* J. Sep. Sci., 2015, 38(18):3170-3175, doi: 10.1002/jssc.201500470. [IF : 3.614] 

[49] Seaweed-derived polymeric materials for multiapplications including marine algal cultivation. J. P. Chaudhary, Dharmesh Chejara, K. Eswaran, Ramavatar Meena*, P K Ghosh. RSC Advances, 2015, 5, 19426 –19431. [IF : 4.04]

[48] Carboxymethylagarose-AuNPs generated through green route for selective detection of Hg2+ in aqueous medium with a blue shift. J. P. Chaudhary, A. Kumar, P. Paul, Ramavatar Meena*. Carbohydrate Polymers, 117, 2015, 537–542. [IF : 10.723]

[47] Culture of red alga Sarconema filiforme in open waters and hybrid carrageenan from cultivated seaweeds. M.Ganesan*, Ramavatar Meena*, A.K.Siddhanta, K. Selvaraj, K. Chithra. Journal of Applied Phycology, 27, 4 (2015), 1549-1559; DOI: 10.1007/s10811-014-0442-z. [IF : 3.404]  

[46] Functional modification of agarose: Synthesis of nano-size half-esters of succinic, phathalic and maleic acids.   S. Kondaveeti, N. A. Chudasama, J P Chaudhary, Ramavatar Meena, A K Siddhanta. Indian J Chemistry, 54A, 2015, 734-743.

[45] Agarose based multifunctional materials: Evaluation of thixotropy, self-healability and stretchability. JP Chaudhary, D R Chejara, D Makwana, K Prasad, Ramavatar Meena*. Carbohydrate Polymers, 114, 2014, 306–311. [F : 10.723]

[44] Bio-based super hydrophilic foam membranes for sustainable oil-water separation. JP Chaudhary, SK Nataraj, A. Gogda, Ramavatar Meena*. Green Chemistry, 2014, 16, 4552-4558, DOI: 10.1039/C4GC01070A. [IF : 10.36]

[43] Surfactant-induced coagulation of agarose from aqueous extract of Gracilaria dura seaweed as an Energy-efficient alternative to the conventional freeze–thaw process. Ramavatar Meena*, J. P. Chaudhary, P. K. Agarwal, P. Maiti, S. Chatterjee, H. D. Raval, P. Agarwal, A. K. Siddhanta, K. Prasad & P. K. Ghosh. RSC Advances, 2014, 4, 28093–28098. [IF : 4.036]

[42] One-pot synthesis of biodiesel from high fatty acid Jatropha curcas oil using bio-based basic ionic liquid as a catalyst.    Rama Mohan Reddy, M. Sharma, JP Chaudhary, Hetal B., Ramavatar Meena*. Current Science, 106, 10, 1394-1400, 2014.

[41] Antioxidant activity and phytochemical analysis of a few Indian seaweed species. D.R. Chejara, Stalin Kondaveeti, Ramavatar Meena, A. K. Siddhanta. Indian J Geo-Marine Science, 43, 4, 2014, 507-518.

[40] Microwave-assisted synthesis of kC/Xylan/PVP-based blend hydrogel materials: physicochemical and rheological studies. Ramavatar Meena*, R. Lehnen, Bodo Saake*. Cellulose, 21, 1, 553-568, 2014. [IF : 5.1]

[39] Preparation and Functional Evaluation of Agarose Derivatives. J. P. Chaudhary, S. Kondaveeti, V. Gupta, K. Prasad, Ramavatar Meena*. Journal of Applied Polymer Science, 131, (16) 2014, J. Appl. Polym. Sci. 2014, 131, 40630, DOI: 10.1002/APP.40630. [IF : 3.057] 

[38] Physicochemical and rheological properties of agarose/xylans composite hydrogel materials. Ramavatar Meena*, R. Lehnen, U. Schmitt, Bodo Saake*. Polymer Composites, 34, (6), 978–988, 2013. [IF : 3.531]

[37] Fuel intermediates, agricultural nutrients and pure water from Kappaphycus alvarezii seaweed. D. Mondal, M. Sharma, P. Maiti, K. Prasad, Ramavatar Meena, A. K. Siddhanta, P. Bhatt, S. Ijardar, V. P. Mohandas, A. Ghosh, K. Eswaran, B. G. Shah & P. K. Ghosh*. RSC Advances, 3, 39, 2013, 17989-17997. [IF : 4.036]

[36] Controlled- release performance of chitosan-polyuronic acid adducts. Mahesh U Chhatbar, Chirag B Godiya, Ramavatar Meena and A K Siddhanta. Ind J Chem A, 52A, 10, 2013, 1269-1274. ISSN: 0376-4710.

[35] Facile synthesis of fluorescent polysaccharides: Cytosine grafted agarose and κ-carrageenan. Mihir D. Oza, Ramavatar Meena, A.K. Siddhanta. Carbohydrate Polymers, 87, 3, 2012, 1971–1979. ISSN      18791344, 01448617. [IF : 10.723]

[34] Microwave assisted synthesis of pH-responsive swellable adducts of chitosan–polyuronic acids. Ramavatar Meena*, Mahesh U. Chhatbar, Kamalesh Prasad, A.K. Siddhanta*. Carbohydrate Polymers, 83 (3), 30 2011, 1402-1407. [IF : 10.723]

[33] Effect of oat spelt and beech xylan on the gelling properties of kappa-carrageenan hydrogels. Ramavatar Meena*, R. Lehnen, U. Schmitt, Bodo Saake*. Carbohydrate Polymers, 85 (3), 2011, 529-540. [IF : 10.723]

[32] Microwave-induced facile synthesis of water-soluble fluorogenic alginic acid derivatives. Mahesh U. Chhatbar, Ramavatar Meena*, Kamalesh Prasad, Dharmesh R. Chejara, A.K. Siddhanta*. Carbohydrate Research, 346 (5), 2011, 527-533, [IF : 1.98]

[31] Effect of grafting on the properties of kappa-carrageenan of the red seaweed Kappaphycus alvarezii (Doty) Doty ex Silva. Nivedita Sahu*, Ramavatar Meena*, M. Ganesan. Carbohydrate Polymers, 84 (1), 11 2011, 584-592. [IF : 10.723]

[30] Sulfated galactans of Champia indica and Champia parvula (Rhodymeniales, Rhodophyta) of Indian waters            . S. Kumar, D. Nandan, Ramavatar Meena, K. Prasad and A. K Siddhanta. Journal of Carbohydrate Chemistry, 30, 2011, 47–60. [IF : 2.60]

[29] Preparation of superior quality products from Indian agarophytes. Ramavatar Meena*, K. Prasad, and A. K. Siddhanta. J Applied Phycology, 23 (2), 2011, 183-189. [IF : 3.404]

[28] The cellulose contents of Indian seaweeds. A. K. Siddhanta, M. U. Chhatbar, Gaurav K. Mehta, N. D. Sanandiya, Sanjay Kumar, Mihir D. Oza, K Prasad, Ramavatar Meena. J Applied Phycology, 23, 2011, 919-923. [IF : 3.404]  

[27] Chemical investigation of Carrageenan from the red alga Sarconema filiforme (Gigartinales, Rhodophyta) of India.          S. Kumar, G. K. Mehta, K. Prasad, Ramavatar Meena, A. K. Siddhanta. Natural product Communications, 6 (9), 1327-1332, 2011.

[26] Glucogalactans from Gracilaria millardetii and Gracilaria textorii (Gracilariales, Rhodophyta) of Indian waters. Oza, Mihir, Mehta, Gaurav, Ramavatar Meena*, Siddhanta, A K. Phycological Research, 59 (4), 244–249, 2011.

[25] Functional modification of agarose: A facile synthesis of a fluorescent agarose–guanine derivative. Mihir D. Oza, Ramavatar Meena, Kamalesh Prasad, P. Paul, A.K. Siddhanta. Carbohydrate Polymers, 81 (4), 2010, 878-884. [IF : 10.723]

[24] Preparation of galactans from Gracilaria debilis and Gracilaria salicornia (Gracilariales, Rhodophyta) of Indian waters. Gaurav K. Mehta & Ramavatar Meena* & K Prasad & M. Ganesan & A. K. Siddhanta. J. Applied Phycology, 22 (5), 2010, 623-627. [IF : 3.404]

[23] Cellulose of Salicornia brachiata. N. Kumar K. Prasad, Ramavatar Meena and A. K. Siddhanta. Natural Product Communications, 5, 2010, 603- 606.

[22] Detection and quantification of some plant growth regulators in a seaweed-based foliar spray employing a mass spectrometric technique sans chromatographic separation. Kamalesh Prasad, Arun K. Das, Mihir D. Oza, Harshad Brahmbhatt, Arup K. Siddhanta, , Ramavatar Meena, K. Eswaran, M.R Rajyaguru and Pushpito K. Ghosh. J. Agric Food Chem., 58 (8), 2010, 4594-601. [IF : 5.279]

[21] Development of a stable hydrogel network based on agar–kappa-carrageenan blend cross-linked with genipin. Ramavatar Meena, Kamalesh Prasad, A.K. Siddhanta. Food Hydrocolloids, 23 (2), 2009, 497-509. [IF : 11.504]

[20] Profiling of cellulose content in Indian seaweed species. A.K.Siddhanta, K. Prasad, Ramavatar Meena, Gayatri Prasad, G.K. Mehta, M U. Chhatbar, M D. Oza, S. Kumar, N. D. Sanandiya. Bioresource Technology, 100, (24), 2009, 6669-6673. [IF : 11.889]

[19] Microwave assisted rapid method for hydrolysis of sodium alginate for M/G ratio determination.            Mahesh Chhatbar, Ramavatar Meena*, Kamalesh Prasad, A.K. Siddhanta*. Carbohydrate Polymers, 76 (4), 2009,  650-656. [IF : 10.723]

[18] Effect of Sodium Sulfate on the Gelling Behavior of Agarose and Water Structure inside the Gel Networks. Tejwant Singh, Ramavatar Meena, and Arvind Kumar. J. Phys. Chem. B, 2009, 113 (8), 2519–2525. [IF : 2.991]

[17] Facile preparation of Chaetomorpha antennina based porous polysaccharide-PMMA hybrid material by radical polymerization under microwave irradiation. G. Prasad, K. Prasad, Ramavatar Meena, and A. K. siddhanta. J. Materials Science, 44, 2009, 4062-4068. [IF : 4.2]

[16] Agar/sodium alginate-graft-polyacrylonitrile, a stable hydrogel system. Mahesh U Chhatbar, Ramavatar Meena, Kamalesh Prasad and A.K. Siddhanta. Indian J. Chemistry, Section A: Inorganic, Bio-inorganic, Physical, Theoretical & Analytical Chemistry, 44A, 2009, 1085-1090.

[15] A new approach to functionalize agar and κ-carrageenan based thin films with improved barrier properties. Kamalesh Prasad, Ramavatar Meena, A K Siddhanta. J Polymer Materials, 25 (3), 373-380, 2008.

[14] Facile solvent free synthesis of polymerised sucrose functionalised polyoxyethylene (23) lauryl ether by microwave irradiation. Kamalesh Prasad, P Bahadur, Ramavatar Meena, and A K Siddhanta. Green Chemistry, 10, 1288-1293, 2008. [IF : 10.36]

[13] Development of a robust hydrogel system based on agar and sodium alginate blend. Ramavatar Meena, Mahesh Chatbar,  Prasad, Kamalesh and Siddhanta, A.K. Polymer International, 57, 2008, 329-336. [IF : 2.99]

[12] Superior quality agar from Gracilaria species (Gracilariales, Rhodophyta) collected from the Gulf of Mannar, India. Ramavatar Meena, Pasad, Kamalesh, Ganesan, M., Siddhanta, A.K. J Appl Phycol, 20, 2008, 397–402. [IF : 2.968]

[11] Preparation of Genipin fixed agarose hydrogel. Ramavatar Meena, Prasad, Kamalesh and Siddhanta, A.K. J  Appl polym Sci, 107, 2007, 290-296. [IF : 3.057]

[10] Intermolecular complexation and phase separation in aqueous solutions of oppositely charged biopolymers. S. Santinath Singh, A.K. Siddhanta, Ramavatar Meena, Kamalesh Prasad, S. Bandyopadhyay, H.B. Bohidar. International Journal of Biological Macromolecules, 41 (2), 2007, 185-192. [IF : 8.025]

[9] Preparation, characterization and benchmarking of agarose from Gracilaria dura of Indian waters.            Ramavatar Meena, A.K. Siddhanta, K. Prasad, B.K. Ramavat, K. Eswaran, S. Thiruppathi, M. Ganesan, V. A. Mantri, P.V. Subba Rao. Carbohydrate Polymers, 69 (1), 2007, 179-188. [IF : 10.723}

[8] Effect of genipin, a naturally occurring crosslinker on the properties of kappa-carrageenan. Ramavatar Meena, Kamalesh Prasad, A.K. Siddhanta. Int. J. Biological Macromolecules, 41, 2007, 94-101. [IF : 8.025]

[7] Studies on “sugar-reactivity” of agars extracted from some Indian agarophytes. Ramavatar Meena, Kamalesh Prasad, Arup Kumar Siddhanta. Food Hydrocolloids, 20, (8), 2006, 1206-1215. [IF : 11.504]

[6] Synthesis of Carrageenan- graft-PAAm : Evaluation of its adhesive and absorbent properties. Ramavatar Meena, Prasad, Kamalesh and Siddhanta, A.K. J.  Appl polym Sci, 102, 2006, 5144-5153. [IF : 3.057]

[5] Microwave induced rapid one pot synthesis of -carrageenan-graft-MMA using potassium persulphate as initiating system. Prasad, Kamalesh, Ramavatar Meena, and A.K Siddhanta. J.  Appl polym Sci,  101, 2006,161-166. [IF : 3.057]

[4] Hydrogel forming agar-graft-PVP and carrageenan-graft-PVP blends: Rapid synthesis and characterization. Prasad, Kamalesh, Mehta, Gaurav, Ramavatar Meena, and Siddhanta, A.K. J  Appl polym Sci, 102, 2006, 3654-3663. [IF : 3.057]

[3] Superior quality agar from Gelidiella acerosa of the west coast of India: An evaluation. Prasad, Kamalesh, Goswami, A.M., Ramavatar Meena, Ramavat, B.K and Siddhanta, A. K.. Indian J of Marine Sci, 35 (3), 2006, 268-274.

[2] Physical modification of agar: Formation of agar-fatty acid complex.    Kamalesh Prasad, Keyur Trivedi, Ramavatar Meena, A. K. Siddhanta. Polymer Journal, 37 (11), 2005, 826-832.  [IF : 2.832]

[1] Modification and characterization of some Indian seaweed polysaccharides. Ramavatar Meena*, Siddhanta, AK, Chattbar, MU, Prasad, K. Proceeding- in: 11th European Workshop on Lignocellulosics and Pulp (11th EWLP), 16-19 Aug. 2010, Hamburg, Germany, 513-516.


[1] An improved one pot synthesis of [2,8-Bis (trifluoromethyl)-4-quinolinyl-2-pyridinyl methanone] a Mefloquine intermediate. Chawla; P. S. Johar; A., Mittal; Ramavatar Meena; V. S., Negi. U.S. Patent No. 6,500,955B1; granted, December 2002. 

Country

Date

Patent No.

USA

Dec 31, 2002

US6500955B1

China

2006-04-12

CN1250540C

India

Feb 2, 2001

Priority to IN129/DEL/2001

[2] Cost-effective process for preparing agarose from Gracilaria spp. Arup Kumar Siddhanta, Ramavatar Meena, Kamalesh Prasad, Bharatkumar Kalidas Ramavat, Pushpito Kumar Ghosh, Karuppanan  Eswaran, Sangaiya Thiruppathi, Vaibhav Ajit Mantri.

Country

Date

Patent No.

US

Dec. 1, 2005

US 2005/0267296 A1,

PCT

Dec. 15, 2005

WO 2005/118830 A1;

INDIA

June 23, 2006

IN 1189/DEL/2004

UK

Feb. 21, 2007

GB 2429209

Australia

Dec. 15,2005

AU 2004320343 A1

Canada

Dec. 4, 2006

CA 2569495

China

July 04, 2007

CN 1993474 A

Japan

Jan. 24, 2008

JP 2008501816 T

Russia

Feb 10, 2010

RU 2381276 CL

[3] A process for the preparation of biodegradable semirefined kappa carrageenan Based FilmsPushpito Kumar Ghosh, Arup Kumar Siddhanta, Kamalesh Prasad, Ramavatar Meena, Amit Bhattacharya.

Country

Date

Patent No.

USA

June 27, 2006

US 7,067,568,

PCT 

June 8,2006

WO 2006059180 A3,

Australia

June 08, 2006

AU 2004325362 A1

UK 

Sept. 05, 2007

GB 2435768 A

China

April 04, 2007

CN101316865 A

India

dated 09/05/2008

IN 1280/DEL/2005

 

[4] An improved process for the extraction of agarose polymer from seaweed extractive. Ramavatar Meena, Kamalesh Prasad, Arup Kumar Siddhanta, Pushpito Kumar Ghosh, Gaurav Mehta, Bhartkumar Kalidas Ramavat, Meenakshi Sundaram Ganesan, Bhavanath Jha, Avinash Mishra, Mahesh  Ramniklal Gandhi, Pradeep Kumar Agarwal, Karuppanan Eswaran.

Country

Date

Patent No.

INDIA

March 24, 2009

IN2009DE567A;

PCT 

March 03, ,2011

WO2010109289 A8

European Union  

Feb 01, 2012

EP2411418  (A1)

Canada

Sept. 30, 2010

CA 2756520 A1

Australia

Oct. 13, 2011

AU2010227247 A1        

Japan

Sept 13, 2012.

JP2012521475  (A)

Russia

April 27, 2013

RU2011142728  (A)

China

May, 7, 2014

CN102439047  (B)

Australia

Oct 10, 2011

AU2010227247  (A1)

[5] Preparation of guar gum and multiwalled carbon nanotubes based self healable ionic gel materials having adhesive properties. Kamalesh Prasad, Mukesh Sharma, Dibyendu Mondal, Chandra Kant Mukesh, Ramavatar Meena.

Country

Grant Date

Patent No.

INDIA

Feb 12, 2019

IN 307171

[6] Biodegradable hydrophobic composite materials and process for the preparation thereof. Ramavatar Meena, Pushpito Kumar Ghosh, Dharmesh R Chejara, K Eswaran, Kamalesh Prasad.

Country

Date

Patent No.

INDIA

Oct 12, 2012

IN 3194/DEL/2012

PCT

April 17, 2014

WO2014057502 A1

US

Grant on 31-01-2017

US9556328B2

[7] Seaweed polysaccharide based superhydrophilic foam membrane for energy-efficient oil-water separation. Ramavatar Meena, N. Sanndiya, J. P. Chaudhary, D. Mondal & S K Natraj. US Patent US20160243505A1, 25-08-2016; PCT WO 2015056273 A1; 2015.

Country

Date

Patent No.

USA

2020-06-23

US10688446B2

PCT

2015

WO2015056273 A1;

INDIA

2015-04-24

IN2013DE03079A

JP

2019-08-28

JP6567513B2

[8] An integrated process to recover a spectrum of  bioproducts from  fresh seaweeds.

Chennur Radhakrishna Reddy, Ravi Singh Baghel, Nitin Trivedi, Puja Kumari, Vishal Gupta,   Kamalesh Prasad, Ramavatar Meena

Country

Date

Patent No.

USA

June 19, 2018

US 10,000,579 B2

INDIA

Aug 11, 2015

IN 3811/DL/2013 

PCT

October17, 2015

WO 2015/102021 A1

[9] A zero liquid discharge process for the production of alginic acid and its derivatives from alginophytes Kamalesh Prasad, Pratyush Maiti, Chandrakant Mukesh, Krishna Kanta Ghara, Ramavatar Meena, Subhash Chandra Ghosh. Indian Patent Application No. 201711025753 dated 20-07-2017.

[10] Zero-Effluent Process for the Recovery of High Purity 5-Hydroxymethyl Furfural (HMF) From Aqueous Agar Solution. Ramavatar Meena, Subbarayappa Adimurthy, Kholiya Faisal, Kamalesh Prasad, Rathod Meena Rajnikant. Provisional Patent Application No.  201711018189 dated 24/5/2017.

[11] An Integrated Process for the Simultaneous preparation of Biostimulant, Cellulose And Biochar from Brown Seaweed Sargassum Species. Ramavatar Meena, Nilesh Vadodariya, Kamalesh Prasad & Arup Ghosh. Indian Patent Application No.: 201811029622 Aug 7, 2018.

[12] Process for the preparation of graded Agarose from seaweed extract. Ramavatar Meena and J. P.  Chaudhary. Indian Patent No. :201611002824, 19-01-2018.

[13] Seaweed polysaccharides-based foot care gel.   S. Chatterjee, Ramavatar Meena, G. Bhojwani, A. Singh. Indian Patent: No. 202011036009, dated 20/08/2020.

[14] Process for the preparation of sprayable Aqueous Chitin Solutions Fortified with Plant Macronutrients. Prasad Kamalesh, Singh Nripat, Sharma Gyanendra, Arup Ghosh, Ramavatar Meena, Pramod Shinde. Indian patent application No. 201911026412 filed on 02/07/2020  (CSIR-IPU Ref No. 154NF2018).

[15] A novel process for the selective extraction of R-phycoerythrin from red seaweeds by biorefinery pathways. Kamalesh Prasad, Rosy Sequiera, Rajan Talsaniya, V. Veeragurunathan, Ramavatar Meena. 0170NF2022. IN 202211053614 dated19-09-2022.


[1] Ramavatar Meena* & Faisal Kholiya. Smart Hydrogel Materials. 1st Edition, Smart Polymers Basics and Applications, Edited By Asit Baran Samui (ISBN 9780367480776; Published April 27, 2022 by CRC Press). 322 Pages).

[2] Seaweed Polysaccharides Based New Hydrogel Materials: A Green Approach. J. P. Chaudhary & Ramavatar Meena*.  In book: Micro- and Nanostructured Polymer Systems From Synthesis to Applications (pp.75-92), Edition: December 2015 Chapter: 5 Publisher: Apple Academic Press 2015 Editors: Sabu Thomas. 

[3] Synthesis of functional derivatives of cellulose for wider applications. Nilesh Vadodariya, J. P. Chaudhary, F. Kholiya & Ramavatar Meena*. In Book: Cellulose and Cellulose Derivatives: Synthesis, Modification and Applications, Chapter 17, Editor: Md. Ibrahim H. Mondal, Nova Publishers           2015.

[4] Grafting on Cellulosics - progress towards purpose. Ramavatar Meena* and A. Bhattacharya, Book entitled "Cellulose-Based Graft Copolymers: Structure and Chemistry" Cellulose-Based Graft Copolymers Structure and Chemistry, Edited by Vijay Kumar Thakur, CRC Press 2015, Pages 13–40, Print ISBN: 978-1-4822-4246-1, eBook ISBN: 978-1-4822-4248-5, DOI: 10.1201/b18390-3.

[5] Development of carbohydrate polymer based new hydrogel materials derived from seaweed polysaccharides. Siddhanta, A.K., Ramavatar Meena, Prasad, G., Chhatbar, M.U., Mehta, G.K., Oza, M.D., Kumar, S., Prasad, K. in “Handbook of Carbohydrate Polymers: Development, Properties and Applications” Ito, Ryouichi and Matsuo, Youta (Eds), Chapter 15. Series: Polymer Science and Technology 2010. ISBN: 978-1-60876-367-2. NOVA Science Publishers Inc., New York, 01-Jul-2010, pp. 555-582.

[6] Agar and Value Addition of Indian Agarophytes. Ramavatar Meena and A K Siddhanta. In the Monograph on “Recent advances on applied aspects of Indian marine algae with reference to global scenario (compiled by A Tewari, CSMCRI). 2006, Vol. 2 (A Tewari, Ed.), pp.172-184.

[7] Seaweed polysaccharides, their bioactivity and value addition–the Indian perspective. A K Siddhanta, Ramavatar Meena, Kamalesh Prasad and A. Sai Krishna Murthy. In the monograph on Agar and Value Addition of Indian Agarophytes.In the monograph on “Recent Advances on Applied Aspects of Indian Marine Algae with Reference to Global Scenario”, Vol. 2 (A Tewari, Ed.), 2006; pp.229-243, CSMCRI, Bhavnagar.

[8]. Ramavatar Meena and Faisal Kholiya. Smart Hydrogel Materials. Book-Smart Polymers, Basics and Applications, Edited by Asit Baran Samui. Seventh edition published [2022], by CRC Press, page-95. [ISBN: 9780367480776 (hbk); ISBN: 9781032228877 (pbk); ISBN: 9781003037880 (ebk); DOI: 10.1201/9781003037880]


  • Research related to the value addition of seaweed biomass & their polysaccharides.
  • Development of novel/improved downstream processing technologies for industrially/commercially important seaweed products (e.g. agar, agarose, carrageenan, alginate) & seaweed-based plant biostimulants/biofertilizers.
  • Synthesis of functional new materials through sustainable processes.
  • Synthesis of Sustainable materials : Nanocomposite, energy materials, nano-drugs, super adsorbent, bioactive substances/formulations, biosensors, hydrogels.

Biopolymers based sustainable and advanced/functional materials