Biography
Dr Subasri obtained her M.Sc. in Chemistry from IIT, Madras, India and PhD in Chemistry from the University of Madras, Tamil Nadu with the research work carried out at Indira Gandhi Centre for Atomic Research, Kalpakkam. After post-doctoral stints at Max Planck Institut für Metallforschung, Stuttgart, Germany and at National Institute for Materials Science, Tsukuba, Japan, she joined ARCI, Hyderabad as a senior scientist. As part of commercialization efforts, her team has made 4 know-how transfers to different industries. She has 111 publications in peer reviewed international journals, 13 book chapter contributions, 16 Indian patents, 4 US patents and 4 European patents granted to her credit. She is a Max-Planck-India Fellow. She received the AICTE distinguished professional award in September 2024 to assist and encourage students and faculty of AICTE-approved institutions to innovate, research, and excel in the technology domain. She received the Materials Research Society of India (MRSI) medal in 2015 in recognition of her significant contributions to the field of Materials Research and Engineering.
Research Areas of Interest
Her research interests include development of sol-gel nanocomposite coating formulations for different applications like self-healing corrosion protection, corrosion sensing, anti-bacterial, biofilm inhibition, anti-reflection, self-cleaning etc.
Highest Qualification
Other Qualifications
List of Publications
2026 (Total-1)
- Priya Indulkar, K. Bhagyalaxmi, K. R. C. Soma Raju, P.K. Mishra, Ankit Sharma, B. R. Mishra, K. V. Gobi, R. Subasri, Journal of Coatings Technology and Research (in press)
2025 (Total-3)
- Anti-Corrosion Silica-based Coatings Using Polyelectrolyte Multi-Layered Nanocontainers for Mild Steel, Aarti Gautam, Ananya Behera, K. V. Gobi and R. Subasri, Journal of Electrochemical Society of India, 74 (2025), 1-11
- Dual functional coatings: Comparative study of corrosion indicators for corrosion reporting and self-healing on MgAZ31 alloy, Ramay Patra, B. Vijay, K.R.C. Soma Raju, K.V. Gobi, R. Subasri, Journal of Alloys and Compounds 1029 (2025) 180755-180776
- Self -Indicating coatings using fluorescent indicators for corrosion detection in mild steel, Ramay Patra, M. M. Krishna, K.V. Gobi, R. Subasri, ACS Applied Engineering Materials 3 (2025) 636-653
2024 (Total-4)
- Assessment of meat freshness via optical measurement of carbon dioxide using fluorescent capillary coating, S. Anusankari, A. Balaji Ganesh, R. Subasri, Food analytical methods, 17 (2024) 1723-1731. https://doi.org/10.1007/s12161-024-02681-y
- Effect of pH on the Controlled Release of Benzotriazole from Halloysite Clay Nanotubes for Corrosion Protection of Mild Steel, Aarti Gautam, Ramay Patra, K. R. C. Soma Raju, K. V. Gobi, R. Subasri, Ceramics International 50 (2024) 45263-45277
- Ceramic-polymer hybrid coatings for diverse applications, K.R.C. Soma Raju, R. Subasri, K. Srinivasa Rao, Frontiers in Coatings, Dyes and Interface Engineering (in press)
- Effectiveness of Thymol blue and Phenolphthalein in Sol-gel Coatings for Sensing and Inhibiting Corrosion on Mild Steel, Ramay Patra, M. Santhosh, K.V. Gobi, R. Subasri, ACS Langmuir 40 (2024) 6035-6050.
2023 (Total-5)
- Photoactive properties of transport sol-gel layers based on strontium titanate for perovskite solar cells, Alina V. Semchenko, Gagik Y. Ayvazyan, Viktoriya V. Malyutina-Bronskaya, Sergei A. Khakhomov, Dmitry L. Kovalenko, Andrei A. Boiko, Vitali V. Sidski, Anton V. Nestsiaronak, Alexander A. Mayevsky, Konstantin D. Danilchenko, Dmitry V. Zhigulin, Vladimir A. Pilipenko, Raghavan Subasri, Nikolai V. Gaponenko, Photonics 10 (2023) 845
- Hybrid Silane Coatings based on Benzotriazole loaded Aluminosilicate nanotubes for Corrosion Protection of Mild Steel, Ramay Patra*, Aarti Gautam*, K. V. Gobi, R. Subasri, Silicon 15 (2023) 6981-6996 https://doi.org/10.1007/s12633-023-02556-7
- Effect of Transition metal and Different Rare-Earth Inhibitors-based Sol-gel Coatings on Corrosion Protection of Mild Steel, Aarti Gautam, K. R. C. Soma Raju, K. V. Gobi, R. Subasri, Metals and Materials International 29 (2023) 2909-2925
- Birru Bhaskar, Ramay Patra, K R C Soma Raju, V. Nagarjuna, Susmita Chaudhuri, R Subasri, Prashant Garg, Biofilm Inhibiting Nanocomposite Coatings on Stainless Steel Surgical Instruments: A Possible Strategy to Prevent TASS, J. Coatings Technology and Research 20 (2023) 559-572
- R Subasri, Ramay Patra, Manisha Yadav, Deepak Kumar, Birru Bhaskar, K R C Soma Raju, Subhash Tanwar, Susmita Chaudhuri, Prashant Garg, Biofilm Inhibiting Nanocomposite Coatings on Surgical Sutures: Durability and Mechanistic Insights, J. Coatings Technology and Research 20 (2023) 377-392
2022 (Total-8)
- K. Pradeep Prem Kumar, K.R.C. Soma Raju and R. Subasri, Self-healing corrosion protection coatings obtained by anodization and sol-gel process on Mg AZ31 alloy, Protection of Metals and Physical Chemistry of Surfaces, 58 (2022) 856-871.
- Aarti Gautam, T. Siva, S. Sathiyanarayanan, K.V. Gobi, R. Subasri, Capped inhibitor-loaded halloysite nanoclay-based self-healing silica coatings for corrosion protection of mild steel, Ceramics International 48 (2022) 30151-30163. DOI: 10.1016/j.ceramint.2022.06.288
- Ramay Patra, K R C Soma Raju, Birru Bhaskar, Debrupa Sarkar, Susmita Chaudhuri, Prashant Garg, R Subasri, Biofilm Inhibiting Nanocomposite Coatings - A promising alternative to combat surgical site infections, J. Coatings Technology and Research 19 (2022) 1607-1711
- K.R.C. Soma Raju, A. Jyothirmayi, L. Rama Krishna, R. Subasri, Corrosion Behaviour of Anodized and Sol-Gel Duplex Coatings on AA3004, Transactions of IIM 75 (2022) 2159-2168. https://doi.org/10.1007/s12666-022-02595-5
- Ramay Patra, K R C Soma Raju, K Murugan, R Subasri, Effect of Heating Rate on Asperities Pattern formed in Sol-Gel derived Nanocomposite Hydrophobic Coatings, Journal of Sol-Gel Science and Technology 103 (2022) 50- 61. https://doi.org/10.1007/s10971-022-05762-8
- Swapnil H. Adsul, Shirish H. Sonawane, R. Subasri, Active protection of magnesium alloy AZ91D using corrosion inhibitor encapsulated halloysite nanoclay-based smart sol-gel coatings, ASTM- Mater. Perform. Charact. Vol. 11 / No. 2 / 2022 pp 171-185 doi:10.1520/MPC20200147
- K. Pradeep Prem Kumar and R. Subasri, Improving the corrosion resistance of Mg alloy AZ31 by a duplex anodized and sol-gel coating, Materials Performance and Characterization, Vol. 11 / No. 2 / 2022 pp 186-199, DOI: 10.1520/MPC20200148
- M. Arunoday, K. Pradeep Premkumar, Ravi Kumar, R. Subasri, Multifunctional, environmental coatings on AA2024 by combining anodization with sol-gel process, Ceramics International, 48 (2022) 10969-10978
2021 (Total-4)
- N. V. Gaponenko, Yu. D. Karnilava, E. I. Lashkovskaya, V. D. Zhivulko, A. V. Mudryi, Yu. V. Radyush, B. A. Andreev, M. V. Stepikhova, A. N. Yablonskiy, S. A. Gusev, R. Subasri, and D. S. Reddy, Radiative Properties of Up-Conversion Coatings Formed on the Basis of Erbium-Doped Barium Titanate Xerogels, Semiconductors, 2021, Vol. 55, No. 9, pp. 965–970
- K. Srinivasa Rao, R. Yogapriya, K. R. C. Soma Raju, R. Subasri, Effect of Curing Technique on the Properties of Superhydrophobic Coatings, Trans Indian Inst Met 74 2021 1923-1932
- Khatija Tabassum, D.S. Reddy, Vivek R. Singh, R. Subasri, Prashant Garg, Sol-Gel Nano-composite Coatings for Preventing Biofilm Formation on Contact Lens Cases, Translational Vision Science and Technology, Vol 10 (1) Article 4, 2021, 1-12
Swapnil H. Adsul, Uday D. Bagale, Shirish H. Sonawane and R. Subasri, “Release rate kinetics of corrosion inhibitor loaded halloysite nanotube-based anticorrosion coatings on magnesium alloy AZ91D” Journal of Magnesium and Alloys 9 (2021) 202-215
2019 (total -4)
1.. S. Anusankari, A. Balaji Ganesh, R. Subasri, N. Deepa, “Optical determination of carbon dioxide and oxygen by a fluorescent membrane to evaluate the freshness of meat products”, Instrumentation Science & Technology, https://doi.org/10.1080/10739149.2019.1622132
2. R. Subasri, K.R.C. Soma Raju, D.S. Reddy, A. Jyothirmayi, Vijaykumar S. Ijeri, Om Prakash, Stephen P. Gaydos, “Environmental friendly Zn-Al Layered Double Hydroxide (LDH) based Sol-Gel Corrosion Protection Coatings on AA 2024-T3”, J. Coat Technol. Res. 16 (5) 2019 1447–1463.
3. R. Subasri, D. S. Reddy, K. R.C. Soma Raju, K. S. Rao, P. Kholov, N. Gaponenko, “Sol-Gel Derived Ba/SrTiO3-MgF2 Solar Control Coating Stack on Glass for Architectural and Automobile Applications”, Research on Chemical Intermediates 45 (2019) 4179-4191.
4. N. V. Gaponenko, P. A. Kholov, K. S. Sukalin, T. F. Raichenok, S. A. Tikhomirov, R. Subasri, K. R. C. Soma Raju, and A. V. Mudryi, Optical Properties of Multilayer BaTiO3/SiO2 Film Structures formed by the Sol–Gel Method, Physics of the Solid State, 61, (2019) 397–401
2018 (Total-5)
1. S. Pradheebha, A. B. Ignatius, K. Srinivasa Rao, R. Subasri, Facile Fabrication of Durable Superhydrophobic Coatings on SS 304 for biomedical applications, International Journal of Nanobiotechnology (2018) 21-34.
2. Swapnil H. Adsul, T. Siva, S. Sathiyanarayanan, Shirish H. Sonawane, R. Subasri, “Aluminum pillared montmorillonite clay-based self-healing coatings for corrosion protection of magnesium alloy AZ91D” Surf. Coat. Technol. 352 (2018) 445-461.
3. S. Pradheebha, R. Unnikannan, Ravi.N. Bathe, G. Padmanabham, R. Subasri, “Effect of Plasma Pretreatment on Durability of Sol-Gel Superhydrophobic Coatings on Laser Modified Stainless Steel Substrates”, J. Ad. Sci. Technol 32 (2018) 2394-2404.
4. Swapnil H. Adsul, K. R. C. Soma Raju, B. V. Sarada, Shirish H. Sonawane, R. Subasri, “Evaluation of self- healing properties of inhibitor loaded nanoclay-based anticorrosive coatings on magnesium alloy AZ91D”, J. of Magnesium alloys, 6 (2018) 299-308.
5. S. Manasa, T. Siva, S. Sathiyanarayanan, K.V. Gobi, R. Subasri, Montmorillonite Nanoclay-based Self-Healing Coatings on AA 2024-T4 Journal of Coatings Technology and Research 15 (2018) 721-735.
2017 (total -5)
- S. Manasa, A. Jyothirmayi, T. Siva, S. Sathiyanarayanan, K.V. Gobi, R. Subasri, Effect of inhibitor loading into nanocontainer additives of self-healing corrosion protection coatings on aluminum alloy A356.0, Journal of Alloys and Compounds 726 (2017) 969-977.
- Nikhil K. Barua, T. Ragini , R. Subasri, Sol-Gel derived Single-Layer Zeolite-based Coatings on Glass for Broadband Antireflection Properties, J Non Cryst Solids 469 (2017) 51-55.
- S. Manasa, A. Jyothirmayi, T. Siva, B. V. Sarada, M. Ramakrishna, S. Sathiyanarayanan, K. V. Gobi, R. Subasri, “Nanoclay based self-healing corrosion protection coatings on aluminum, A356.0 and AZ91 substrates”, Journal of Coatings Technology and Research 14 (2017) 1195-1208.
- Swapnil H. Adsul, T. Siva, S. Sathiyanarayanan, Shirish H. Sonawane and R. Subasri, “Self-healing ability of nanoclay-based hybrid sol-gel coatings on magnesium alloy AZ91D” Surface and Coatings Technology 309 (2017) 609-620.
- S. Anusankari, Abishya David, R Subasri, A. Balaji Ganesh "Dual sensing of pH and DO using Opto-Sol Fluorescence based sensor-A spectral Analysis", Proceedings of the 2016 International Conference on Advanced Communication Control and Computing Technologies (ICACCCT), pp 454-457, ISBN No.978-1-4673-9545-8.
2016 (total -2)
1. R. Subasri, K.R.C. Soma Raju, D.S. Reddy, N.Y. Hebalkar, G. Padmanabham, Sol-gel derived solar selective coatings on SS 321 substrates for solar thermal applications, Thin Solid Films 598 (2016) 46-53.
2. S. Manasa, R. Subasri, Effect of heat treatment on the optical properties of sol-gel derived, fully dielectric solar control coatings on glass, J. Coatings Technology and Research 13 (2016) 623-628.
2015 (total -3)
- Alcina Johnson Sudagar, R. Subasri, Fabrication and Characterization of Silver/Nickel Sulphide Solar Absorber Coatings on Stainless Steel by Chemical Bath Deposition, Mater. Chem. Phys. 163 (2015) 478-484.
- R. Subasri, H. Hima, Investigations on the use of nanoclay for generation of superhydrophobic coatings, Surface & Coatings Technology, 264 (2015) 121– 126.
- Rekha Dom, A. Sadananda Chary, R. Subasri, Neha Y. Hebalkar and Pramod H. Borse, Solar hydrogen generation from spinel ZnFe2O4 photocatalyst: effect of synthesis methods, Int. J. Energy Res. (2015) Published online in Wiley Online Library (wileyonlinelibrary.com). DOI: 10.1002/er.3340
2014 (total -3)
- M. Prekajski, M. Stojmenovic´, A. Radojkovic´, G. Brankovic´, H. Oraon, R. Subasri, B. Matovic, Sintering and electrical properties of Ce1-xBixO2-d solid solution, J Alloys and Compds, 617 (2014) 563-568.
- S. Pavithra and R. Subasri, Sol-gel derived single layer zeolite-MgF2 composite antireflective coatings with improved mechanical properties on polycarbonate, Journal of Coating Science and Technology 1 (2014) 8-16.
- K. Mamatha and R. Subasri, Investigations on Coatings Generated from Silica-Zirconia Hybrid Sols Synthesized through Hydrolytic/ Non-Hydrolytic Wet Chemical Route on PMMA Substrates, Ceramics International 40 (2014) 10615-10619
2013 (total -7)
- N. Kumar, A. Jyothirmayi, K. R. C. Soma Raju, V. Uma and R. Subasri (2013): One Step Anodization/Sol-Gel deposition of Ce3+-doped silica-zirconia Self-Healing Coating on Aluminum, ISRN Corrosion, article id 424805.
- R. Subasri, G. Reethika and K.R.C. Soma Raju (2013): Multifunctional Sol-Gel Coatings for Protection of Wood, Wood Material Science and Engineering (in press), 8(4), (2013) 226-233.
- K. Murugan, R. Subasri, T.N. Rao, Ashutosh S. Gandhi and B.S. Murty (2013): Synthesis, Characterization and demonstration of self-cleaning TiO2 coatings on glass and glazed ceramic tiles, Special Issue of Progress in Organic Coatings, 76, 1756-1760.
- Priya Anish Mathews, K.R.C. Soma Raju, Sanjay Bhardwaj and R. Subasri (2013): Sol-Gel Functional Coatings for Solar Thermal Applications: A Review of Recent Patent Literature, Recent Patents on Materials Science 6, 195-213.
- L. Sowntharya, Ravi C. Gundakaram, K.R.C. Soma Raju and R. Subasri (2013): Effect of addition of surface modified nanosilica into silica-zirconia hybrid sol-gel matrix, Ceramics International, 39, 4245-4252.
- L. Sowntharya and R. Subasri (2013): A comparative study of different curing techniques for SiO2-TiO2 hybrid coatings on polycarbonate, Ceramics International, vol. 39, 4689-4693.
- K. Jeevajothi, R. Subasri, K.R.C. Soma Raju (2013): Transparent, Non-fluorinated, Hydrophobic Silica Coatings with Improved Mechanical Properties, Ceramics International, 39, 2111-2116.
2012 (total -11)
- N. Kumar, A. Jyothirmayi and R. Subasri (2012): Effect of Plasma Surface Pre-Treatment on Ce3+-doped GPTMS-ZrO2 Self-Healing Coatings on Aluminum Alloy, ISRN Corrosion, Volume 2012, Article ID 506560, doi:10.5402/2012/506560
- Rekha Dom , R. Subasri, N. Y Hebalkar , S. A. Chary and P. H. Borse (2012) : Synthesis of hydrogen producing nanocrystalline ZnFe2O4 visible light photocatalyst using rapid microwave irradiation method, RSC Advances, 2, 12782-12791.
- N. Kumar and R. Subasri (2012): Self-healing coatings by sol-gel process: A review of recent patent literature, Recent Patents on Corrosion Science 2, 148-163.
- K.R.C. Soma Raju, L. Sowntharya, S. Lavanya and R. Subasri (2012): Effect of plasma pretreatment on adhesion and mechanical properties of sol-gel nanocomposite coatings on polycarbonate, Composite Interfaces 19, 259-270.
- N. Kumar, A. Jyothirmayi, K.R.C. Soma Raju and R. Subasri (2012): Effect of functional groups (methyl, phenyl) on organic-inorganic hybrid sol-gel silica coatings on surface modified SS316, Ceramics International 38, 6565-6572.
- R. Subasri, R. Malathi, A. Jyothirmayi and N. Y Hebalkar (2012): Synthesis and characterization of CuO-Hybrid Silica Nanocomposite coatings on SS 304, Ceramics International, 38, 5731-5740.
- L. Sowntharya, S. Lavanya, G. Ravi Chandra, N.Y. Hebalkar and R. Subasri (2012): Investigations on the mechanical properties of hybrid nanocomposite hard coatings on polycarbonate, Ceramics International, 38, 4221-4228.
- K. Jeevajothi, D. Crossiya and R. Subasri (2012): Non-fluorinated, room temperature curable hydrophobic coatings by sol–gel process, Ceramics International, 38, 2971-2976.
- R. Subasri , C.S. Madhav, K.R.C. Soma Raju and G. Padmanabham (2012): Decorative, hydrophobic sol–gel coatings densified using near-infrared radiation, Surf. Coat. Technol., 206, 2417-2421.
- P. Sandhyarani, M. Buchi Suresh and R. Subasri (2012): Investigations on the phase stability of Na+-conducting sodium dysprosium (phospho) silicates, Ceramics International, 38 , 1435–1440.
- S. Shalini, P. Sandhyarani, Y.S. Rao, D. Chakravarty and R. Subasri (2012): Wet chemical synthesis and characterization of Na+-conducting sodium dysprosium silicates, Ceramics International, 38, 295-300.
2011 (total -2)
1. Rekha Dom; R. Subasri, K. Radha and P.H. Borse (2011): Synthesis of solar active nanocrystalline ferrite, MFe2O4 (M: Ca, Zn, Mg) photocatalyst by microwave irradiation, Solid State Communications, 151, 470-473.
2. T. Gururaj, R. Subasri, K.R.C. Soma Raju and G. Padmanabham (2011): Effect of plasma pretreatment on adhesion and mechanical properties of UV-curable coatings on plastics, Applied Surface Science 257, 4360–4364.
2010 (total -5)
1. K. Rajeswari, U. S. Hareesh, R. Subasri, Dibyendu Chakravarty and R. Johnson (2010): Comparative Evaluation of Spark Plasma (SPS), Microwave (MWS),Two stage sintering (TSS) and Conventional Sintering (CRH) on the densification and Micro structural Evolution of fully Stabilized Zirconia Ceramics, Science of Sintering, 42, 259-267.
2. R. Subasri, A. Jyothirmayi and D.S. Reddy (2010): Effect of plasma surface treatment and heat treatment ambience on mechanical and corrosion protection properties of hybrid sol-gel coatings on aluminum” , Surface and Coatings Technology, 205, 806-813.
3. R. Subasri, M. Tripathi, K. Murugan , J. Revathi, G.V.N. Rao and T.N. Rao (2010): Investigations on the photocatalytic activity of sol-gel derived plain and Fe3+/ Nb5+- doped titania coatings on glass substrates” Materials Chemistry and Physics, 124, 63-68.
4. Kiruthika, P., Subasri, R., Jyothirmayi, A., Sarvani, K., Hebalkar,N.Y. (2010): Effect of Plasma Surface Treatment on Mechanical and Corrosion Protection Properties of UV-Curable Sol-Gel based GPTS-ZrO2 Coatings on Mild Steel, Surface and Coatings Technology, 204 1270-1276.
5. Ratna Sunil, B., Sivaprahasam, D. and Subasri,R. (2010): Microwave sintering of nanocrystalline WC–12Co: Challenges and perspectives, International Journal of Refractory Metals and Hard Materials, 28, 180-186.
2009 (total -4)
1. K.R.C. Soma Raju, R. Subasri, A. Jyothirmayi, T. Gururaj, G. Padmanabham (2009) : UV-Curable Primer-cum-Paint System for Mild Steels based on Sol-Gel Coating Technology, Proceedings of SAEINDIA International Mobility Engineering Congress and Exposition, Chennai, Paper Number:2009-28-0052
2. Dinesh Ram, R., Subasri, R., Somaraju, K.R.C., Jayaraj, K., Vedaprakash, L., Kruparatnam, Joshi, S.V. and Venkatesan, R. (2009): Biofouling studies on nanoparticle-based metal oxide coatings on glass coupons exposed to marine environment, Colloids and Surfaces B: Biointerfaces 74, 75-83.
3. Subasri, R., Asha, M., Hembram, K., Rao, G.V.N. and T.N. Rao (2009) : Microwave Sintering of Doped Nanocrystalline ZnO and Characterization for Varistor Applications, Mater. Chem. and Phys. 115, 677-684.
4. D. Ganguli, Subasri, R. and Varadharajan, R. (2009): Inorganic Dispersed Phase Composites by Sol-Gel Processing: An update, in Progress in Sol-Gel Production , 391, 121- 139.
Books / Book Chapters
- K. R. C. Soma Raju, Aarti Gautam, Ramay Patra, K. Srinivasa Rao, K.V. Gobi, R. Subasri, Bioinspired strategies for corrosion protection and antifouling coatings, Chapter in book titled NOVEL ANTI-CORROSION AND ANTI-FOULING COATINGS AND THIN FILMS, (ed) Dr Hari Murthy, Vinay Jha Pillai, Kukatlapalli Pradeep Kumar and Matthew Cowan (August 2024) ISBN-978-1-394-23431-8, pp 251-285
- Swapnil H. Adsul, Shirish H. Sonawane, R. Subasri, Recent Progress in the Development of Smart Coatings for Corrosion Protection of Magnesium Alloys, chapter in book titled “Magnesium Alloys: Advances in Research and Applications” (ed.) Catalin Julian Pruncu and Kavian Omar Cooke, Nova Publishers, September 30, 2022, ISBN: 978-1-68507-975-8. DOI: https://doi.org/10.52305/ZYQA6821
- K. Pradeep Premkumar and R. Subasri, Multifunctional duplex coatings on Mg alloys generated through anodization and sol-gel process, chapter in book titled “Magnesium Alloys: Advances in Research and Applications” (ed.) Catalin Julian Pruncu and Kavian Omar Cooke, Nova Publishers, September 30, 2022, ISBN: 978-1-68507-975-8. DOI: https://doi.org/10.52305/ZYQA6821
- Swapnil H. Adsul, K. Pradeep Prem Kumar, S. Manasa, Aarti Gautam, K.V. Gobi, Shirish H. Sonawane, R. Subasri, Corrosion protection of metals/alloys through multifunctional sol-gel nanocomposite coatings, chapter in book titled ‘A Treatise on Corrosion Science, Engineering and Technology”, (ed) U. Kamachi Mudali, T. Subba Rao, S. Ningshen, Radhakrishna G. Pillai, Rani P. George and T.M. Sridhar, Indian Institute of Metals Series, Springer Nature 2022, https://doi.org/10.1007/978-981-16-9302-1_33, Series ISSN: 2509-6400; ISBN: 9811693013, 9789811693014, pp 641-662.
- Aarti Gautam, K. R. C. Soma Raju, K.V. Gobi, R. Subasri, Benzotriazole encapsulated nanocontainer-based self-healing coatings for corrosion protection of mild steel, in Recent Trends in Electrochemical Science and Technology, Proceedings of papers presented at NSEST-2020 and ECSIRM-2020, Springer Proceedings in Materials Series (ed) U. Kamachi Mudali, S.T. Aruna, H.P. Nagaswarupa, Dinesh Rangappa, Springer Nature 2022, ISBN 978-981-16-7553-9 ; ISBN 978-981-16-7554-6 (eBook), https://doi.org/10.1007/978-981-16-7554-6. Pp-15.
- R. Subasri, K.R.C. Soma Raju, and K. Samba Sivudu, Applications of Sol-Gel Coatings: Past, Present and Future in Handbook of Modern Coating Technologies: Fabrication methods and functional properties (ed) Mahmood Aliofkhazraei, Ali Nasar, Mircea Chipara, Nadhira Bensaada Laidani, Jeff Th.M. De Hosson, Elsevier (in press) (2021). ISBN: 0444632468, 9780444632463
- R. Subasri, K.R.C. Soma Raju, Multifunctional Sol-gel Nanocomposite Coatings for Aerospace, Energy and Strategic Applications: Challenges and Perspectives in Handbook of Advanced Ceramics and Composites: Defense, Security, Aerospace and Energy Applications (ed.) Y.R. Mahajan and Roy Johnson, Springer Nature (October 2020) ISBN 978-3-030-16347-1
- R. Subasri, Swapnil H. Adsul, S. Manasa, “Smart nanocontainers for anticorrosion applications”, in Smart nanocontainers: Fundamentals and emerging applications (ed.) Phuong Nguyen Tri, On Do-Trong and Tuan Anh Nguyen, Elsevier (March 2019), ISBN: 978-0-12-816770-0
- R. Subasri "Plasma Surface Treatment: Effects on Mechanical and Corrosion Protection Properties of Hybrid Sol-Gel Coatings", Chapter in a book titled "Encyclopedia of Aluminum and Its Alloys (ed) George E. Totten, Murat Tiryakioglu and Olaf Kessler, CRC Press, Taylor & Francis Group, Florida, January 2019, Vol 2, 1922-1927, ISBN: 978-1-4665-1080-7 (Set)
- R. Subasri, "Improving Corrosion Resistance of Metals/Alloys using Hybrid Nanocomposite Coatings Synthesized through Sol-Gel Processing, "Comprehensive guide for nanocoatings technology, Volume 3: Properties and Development, (ed.) M. Aliofkhazraei, Nova Science Publishers Inc., New York, USA, 2015, pp 123-142.
- K.R.C. Soma Raju and R. Subasri, “Sol-Gel Nanocomposite Hard Coatings”, in Anti-abrasive nanocoatings: Current and future applications, (ed.) M. Aliofkhazraei, Woodhead Publishing, Woodhead Publishing (an imprint of Elsevier), UK, 2015, pp 105-136.
- R. Subasri, “Properties of nanocomposite hard coatings on polycarbonate”, in Polymer Nanocomposite Coatings (ed.) Vikas Mittal, CRC Press (Taylor & Francis Group), USA, October 2013, pp 167-184.
- R. Subasri and T. Shinohara in “Prevention of Metal Corrosion” (ed.) Magdalena Nunez, pp- 275-303, Nova Science Publishers Inc., Netherlands, December 2008.
Patents
Indian Patents/ Patent Applications
- Indian Patent titled “Antibacterial Scrub Pads and Process of Preparing the Same”, K.R.C. Soma Raju, D. Sreenivas Reddy, K.S. Rao, R. Subasri, A. Xavier Kennedy, Ayath Bashaa, granted as 456240 on 03-10-2023
- Indian patent titled “Biofilm inhibiting sol-gel composition for coating on substrates and process of preparing the same” R Subasri, Ramay Patra, K.R.C. Soma Raju, Susmita Chaudhuri, Prashant Garg, B. Bhaskar, Debrupa Sarkar, granted as 440726 on 27-07-2023
- Indian patent application titled “Antimicrobial aqueous based sol-gel composition for coating on substrate and process of preparing the same” by D.S. Reddy, K.R.C. Soma Raju, R. Subasri granted as 411262 on 11-11-2022
- Indian patent application titled “Process for preparing durable solar control coatings on glass substrates” by R. Subasri. D.S. Reddy, K.R.C. Soma Raju, K.S. Rao filed as 201811024034 dtd 27-06-18 granted as 506428 on 02-02-2024
- Indian Patent application titled "An Improved Process For Preparing Durable Multifunctional Coatings On Metal/Alloy Substrates" invented by R. Subasri, S. Pradheebha, Ravi N. Bathe, G. Padmanabham, granted as 366262 on 06-05-21
- Indian Patent application titled "An Improved Coating Composition to Provide Flame Retardant Property to Fabrics and Process of Preparing The Same" R. Subasri and Abhishek Tyagi, granted as 305214 on 01-01-19
- Indian patent application titled "An improved coating composition to provide prolonged corrosion protection to anodizable metal surfaces and process of preparing the same" by R. Subasri and S. Manasa, Granted as 370802 on 30-06-21
- Indian patent application titled “An improved process to make coating compositions for transparent, UV blocking coatings on glass and a process of coating the same” by R. Subasri, Nabormi Mukhopadhyay and K. Murugan granted as 338641 on 18-06-2020
- Indian patent application entitled "An improved process for obtaining a transparent, protective coating on bi-aspheric / planoconvex lenses made of optical grade plastics for use in indirect ophthalmoscopy", invented by Raghavan Subasri, Sowntharya Logapperumal, Karuppiah Murugan granted as 343375 on 05-08-2020.
- Indian patent application entitled "An improved composition for antireflective coating with improved mechanical properties and a process of coating the same" invented by Raghavan Subasri and Pavithra Sivaprakasam, granted as 342046 on 20-07-2020.
- Indian patent application entitled "An improved composition for coating anodizing metal surfaces and a process of coating the same" invented by Raghavan Subasri, Nirmal Kumar, Kalidindi Rama Chandra Soma Raju, Venkateshwaran Uma, granted as 339945 on 30-06-2020
- Indian patent application entitled “An Improved Composition for Solar Selective Coatings on Metallic Surfaces and a Process for Its Preparation and a Process for Coating using the Compositions”, invented by Kalidindi Rama Chandra Soma Raju, Dendi Sreenivas Reddy, Raghavan Subasri, Gadhe Padmanabham granted as 340426 on 06-07-2020.
- Indian patent application entitled “An improved abrasion resistant and hydrophobic composition for coating plastic surfaces. and a process for its preparation” invented by Kalidindi Rama Chandra Soma Raju, Dendi Sreenivas Reddy, Raghavan Subasri, Gadhe Padmanabham, Granted as 297072 on 24-05-18
- Indian patent application entitled “Improved Scratch and Abrasion Resistant Compositions for Coating Plastic Surfaces, A Process for their Preparation and A Process for Coating Using The Compositions” Gururaj Telasang, Kalidindi Rama Chandra Soma Raju, Raghavan Subasri, Gadhe Padmanabham, Granted as 295221 on 28-03-18.
- Indian patent application entitled “An Improved Composition for Coating Metallic Surfaces and a Process for Coating such surfaces using the Composition” invented by Kalidindi Rama Chandra Soma Raju, Raghavan Subasri, Adduru Jyothirmayi, Gadhe Padmanabham. Granted as 290592 on 14-12-17.
Indian Patent No. 215156 entitled “A Process for the Preparation of MgO Stabilized Beta Alumina" invented by Raghavan Subasri, Tom Mathews, Otlingam Mohanasundaram Sreedharan, V.S. Raghunathan, Granted on 21-02-08.
List of US/ European Patents granted
1. US Patent application titled "Sol-gel coating composition including corrosion inhibitor encapsulated layered metal phosphates and related process" invented by Vijaykumar S. Ijeri, Om Prakash, S. Gaydos, R. Subasri, K.R.C. Soma Raju, D.S. Reddy filed as US 15/431506 dtd 13-02-17. Granted as US 10,421,869 B2 on 24-09-19 and EP 3345975 B1 on 14-10-20, pre grant 2982178 on 23-08-2022
2. US Patent application titled "Sol-gel coating compositions and related processes" invented by Vijaykumar S. Ijeri, Om Prakash, S. Gaydos, R. Subasri, K.R.C. Soma Raju, D.S. Reddy filed as US 15/231617 dtd 08-08-16. Granted as US 10,428,226 B2, on 01-10-19, 11091653 on 17-08-2021, CA29655241 on 02-11-2021
3. US Patent application titled "Sol-gel coating compositions including corrosion-inhibitor encapsulated layered double hydroxides and related processes" invented by Vijaykumar S. Ijeri, Om Prakash, S. Gaydos, R. Subasri, K.R.C. Soma Raju, D.S. Reddy filed as US 15/231654 dtd 08-08-16 (granted as US 10,246,593 B2 on 02-04-19, 10793725 on 06-10-2020 and EP 3272816 B1 on 02-01-19), CA 2965244 on 02-06-2020
4. US Patent application titled "Corrosion inhibitor incorporated layered double hydroxide and sol-gel coating compositions and related processes" invented by Vijaykumar S. Ijeri, Om Prakash, S. Gaydos, R. Subasri, K.R.C. Soma Raju, D.S. Reddy filed as US 15/231668 dtd 08-08-16 and granted as US 10,246,594 B2 on 02-04-19, 10738199 on 11-08-2020 and EP 3272904 B1 on 25-12-19, CA 2965233 on 14-06-2022
Major Projects / Technologies Developed
- Hexavalent chrome replacement coatings on Al alloys
- Nanoclay based self-healing corrosion protection coatings on Al/Mg alloys
- Hydrophobic coatings for spinel windows
- Antibacterial coatings for scrub Pads
- Biofilm inhibiting coatings for prevention of surgical site infections (sutures, hernia repair meshes)
- Ready-to-paint coatings for CRCA/GI
Awards & Honours
Dr Subasri is a Max-Planck-India Fellow. She received the AICTE distinguished professional award in September 2024 to assist and encourage students and faculty of AICTE-approved institutions to innovate, research, and excel in the technology domain. She received the Materials Research Society of India (MRSI) medal in 2015 in recognition of her significant contributions to the field of Materials Research and Engineering.
Affiliation to Professional Societies
Life Member of Electrochemical Society of India, Indian Institute of Metals, Indian Women Scientists' Association, International Sol-Gel Society, Materials Research Society of India