Nilwala Kottegoda
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Nilwala Kottegoda Address : 51, Albert Peiris Road, Horana, Sri Lanka Mob. No : 0094773830313 E-mail : [email protected] Web Link: http://scholar.sjp.ac.lk/Nilwala PERSONNEL PROFILE . PhD. in Material Science with 15+ years’ experience teaching in materials science and technology, nanotechnology, physical chemistry and polymer chemistry . Extensive research experience in nanomaterial synthesis and characterization, development of nano- delivery systems for nutraceuticals and plant nutrients, polymer nanocomposites, water purification based on nanotechnology, value addition to natural resources EDUCATION . University of Cambridge, Cambridge, UK 2002 – 2006 Ph.D. in Materials Chemistry Thesis Title: Synthesis and Exfoliation of Layered Double Hydroxides (LDHs): Characterization and Application in LDH/Polymer Nanocomposites Advisor: Professor W. Jones . University of Peradeniya, Peradeniya, Sri Lanka 1996 – 2000 B. Sc. Special Degree in Chemistry, First class (Hons.) . University of Colombo, Sri Lanka 2001-2002 Diploma in Teaching in Higher Education PROFESSIONAL EXPERIENCES UNIVERSITY TEACHING & ADMINISTRATION . Department of Chemistry, University of Sri Jayewardenepura, Sri Lanka 2007 – Present Head of the Department Apr 2019 - Present Professor in Chemistry 2016 – Present Senior Lecturer 2007 - 2016 . Department of Materials Science and Nano Science, Rice University, Houston, USA Mar - Sep 2018 Academic Fellow (Fulbright fellow) . Department of Chemistry, University of Peradeniya, Sri Lanka 2000 - 2007 Senior Lecturer 2006 – 2007 Lecturer 2000 – 2006 (on study leave from 2002 – 2005) RESEARCH & ADMINISTRATION . Sri Lanka Institute of Nanotechnology/ SLINTEC Academy, Sri Lanka Principal Scientist and Provost 2017 –2019 (on sabbatical leave) Senior Research Consultant – part time 2013 –2015 (Seconded for National Services from the University) Senior Research Scientist and Analytical Services Manager 2009 - 2013 . Center for Advanced Materials Research, University of Sri Jayewardenepura Director 2015 – 2018 PUBLICATIONS PATENTS (approved) 1. Abayaweera, G., Amaratunga, G., Fernando, N., Karunaratne, V., Kottegoda, N. and Ekanayake, R. Method of producing Titanium from Titanium Oxide through Magnesium vapour reduction: US10316391B2, June 11 2019. 2. Veranja Karunaratne, Gayan Priyadarshana, Nilwala Kottegoda, Sunanda Gunasekara, Athula Senaratne, Process For Preparation Of Nanoparticles From Magnetite Ore, US 10192660B2, 29th Jan 2019. 3. Nilwala Kottegoda, Gayan Priyadarshane, Chanaka Sandaruwan, Damayanthi Dahanayake, Sunanda Genesekara, A J Gehan Amaratunge, Veranja Karunaratne, Composition and Method for Sustained Release of Agricultural Macronutrients, a continuation-in-part of U.S. application Ser. No. 12/794,741 filed June 5, 2010, US 8 696 784 B2, 15th April 2014. 4. Nilwala Kottegoda, Imalka Munaweera, Nadeesh Madusanka, Veranja Karunaratne, Compositions for Sustained Release of Agricultural Macronutrients and Process There of, US 8 361 185 B2, 29th Jan 2013 5. Nilwala Kottegoda, Imalka Munaweera, Nadeesh Madusanka, Ajith De Alwis, Sunanda Gunasekara, Veranja Karunaratne, A Cellulose Based Sustained Release Macronutrient Composition for Fertilizer Application, US 8 617 284 B2, 31st Dec 2013 6. Nilwala Kottegoda, Imalka Munaweera, Nadeesh Madusanka, Ajith De Alwis, Sunanda Gunasekara, Veranja Karunaratne, A Cellulose Based Sustained Release Macronutrient Composition for Fertilizer Application, CN102985393B, 10th Dec 2014 (Chinese patent) 7. Nilwala Kottegoda, Gayan Priyadarshane, Chanaka Sandaruwan, Damayanthi Dahanayake, Sunanda Genesekara, A J Gehan Amaratunge, Veranja Karunaratne, Composition and Method for Sustained Release of Agricultural Macronutrients, 1-2015-501297, July 2018. (Philiphine patent) 8. Imalka Munaweera, Nilwala Kottegoda, Lakshman Nethsinghe, Sunil Fernando, Elastomeric Polymer/Spinel Nanoparticle Composites To Introduce Special Properties To Dipped Articles, Sri Lankan patent 15164 – Product is already in the market Patents 3- 6 have been extended to China, Mexico, Brazil, Australia, Canada, ARIPO, European Union, India, Vietnam, Philippines, Indonesia, Malaysia, South Africa, Nigeria and USA, Sri Lanka. PATENT APPLICATIONS (published) 1. Abayaweera, G., Amaratunga, G., Fernando, N., Karunaratne, V., Kottegoda, N. and Ekanayake, R. A Method Of Producing Titanium From Titanium Oxides Through Magnesium Vapour Reduction: PCT application PCT/IB2017/054541, 2017. 2. Nilwala Kottegoda, D A S Siriwardene, W M G I Priyadarshane, Chanaka Sandaruwan, D A D Madusanka, U A Ratnayake, Damayanthi Dahanayake, Sunanda Genesekara, Ajith De Alwis, Asurusinghe Kumarasinghe, A J Gehan Amaratunge, Veranja Karunaratne, Composition and Method for Sustained Release of Agricultural Macronutrients, a continuation-in-part of U.S. application, US 20140165683 A1, 12th June 2014 3. Imalka Munaweera, Nilwala Kottegoda, Lakshman Nethsinghe, Sunil Fernando, Elastomeric Polymer/Spinel Nanoparticle Composites To Introduce Special Properties To Dipped Articles, WO/2010/046789 4. Samaranayake, L., Kottegoda, N., Kumarasinghe, A.R., De Alwis, A., Gunasekara, S., Nanayakkara, S. and Karunaratne, V., A Process for Preparation of Carbon Nanotubes from Vein Graphite: US patent application, 12,766,888, 2010. 5. Malindu De Alwis, Upul Ratnayake, Nilwala Kottegoda, Novel Preparation Method For Natural Rubber – Montmorillonite Clay Nanocomposites, LK/P/1/19260, April 2017 6. Nilwala Kottegoda, Madhavi de Silva, Veranja Karunaratne, A method of synthesizing urea- hydroxyapatite nanohybrid fertilizers, LK/2019/P/20717, Sep 2019 INNOVATIONS LEADING TO SALE OF TECHNOLOGY (i) “Slow and Sustained Release Nano-fertilizer, Nagarjuna Fertilzer Ltd., India – Purchase of the patents (2 -above) and the technology transfer for commercialization purposes – March 2012 (ii) Imalka Munaweera, Nilwala Kottegoda, Lakshman Nethsinghe, Sunil Fernando, Elastomeric Polymer/Spinel Nanoparticle Composites To Introduce Special Properties To Dipped Articles, Sri Lankan patent 15164” available as TRAK 45 glove produced by Hayleys DPL Plc https://www.dplgroup.com/view/product?main=5&cat=105&sub=1013&product=68 (iii) Deflouridation and removal of water hardness using low cost sachet type water filters based on activated carbon derived from waste coconut coir – Partners: Anunine Holdings Pvt Ltd and National Research Council of Sri Lanka BOOK CHAPTERS . Nanotechnology can be beneficial for the environment in Nanotechnology edited by Noah Berlatsky, Farmington Hills, Mich : Greenhaven Press, A part of Gale, Cengage Learning, 2014 EDITED BOOKS . Sri Lankan School Science Text Books Grade 6-9 JOURNAL PUBLICATIONS 1. Chamalki Madhusha, Imalka Munaweera, Veranja Karunaratne, Nilwala Kottegoda, Facile Mechanochemical Approach To Synthesizing Edible Food Preservation Coatings Based On Alginate/Ascorbic Acid-Layered Double Hydroxide Bio-Nanohybrids, Journal of Agricultural and Food Chemistry, July 2020, DOI https://doi.org/10.1021/acs.jafc.0c01879 2. S. Raguraj, W.M.S. Wijayathunga, G.P. Gunaratne, R.K.A. Amali, Gayan Priyadarshana, Chanaka Sandaruwan, V. Karunaratne, L. S. K. Hettiarachchi, Nilwala Kottegoda, Urea- Hydroxyapatite Nanohybrid as an Efficient Nutrient Source in Camellia sinensis (L.) Kuntze (Tea), Journal of Plant Nutrition, (In press) 3. Madhavi De Silva, Dumindu Siriwardene, Chanaka Sandaruwan, Gayan Priyadarshane, Veranja Karunaratne, Nilwala Kottegoda, Urea-silica nanohybrids with potential applications for slow and precise release of nitrogen, Materials Letters, 272, 2020, 127839 4. GMC Alwis, N Kottegoda, UN Ratnayake, Facile exfoliation method for improving interfacial compatibility in montmorillonite-natural rubber nanocomposites: A novel charge inversion approach, Applied Clay Science, 2020, 191, 105633 5. Buddhini Nisanka, Nilwala Kottegoda, Dilushan Jayasundara, Probing Structural Variations of Graphene Oxide and Reduced Graphene Oxide Using Methylene Blue Adsorption Method, Journal of Materials Science, 2020 6. Nilwala Kottegoda, Guest Editorial, Winning Back the Nation Through Chemistry, Chemistry in Sri Lanka, Jan 2019. 7. Nilwala Kottegoda, Nanofertilizer: Seeds of Change in Fertilizer Innovations (invited Review Article), Vidyodaya Journal of Sri Lanka, April 2019 8. Wijesinghe G, Dilhari A, Gayani B, Kottegoda N, Samaranayake L, Weerasekera M. Influence of Laboratory Culture Media on In-vitro Growth, Adhesion and Biofilm Formation of Pseudomonas aeruginosa and Staphylococcus aureus. Medical Principles and Practice. 2018 Oct. doi: 10.1159/000494757 9. Buddhika Gayani, Ayomi Dilhari, Gayan Wijesinghe, Sajeewani Kumarage, Sammera Samarakoon, Inoka Perera, Nilwala Kottegoda, Manjula Weerasekera, Effect of Natural Curcuminoids Intercalated Layered Double Hydroxide Nanohybrid against Staphylococcus aureus, Pseudomonas aeruginosa and Enterococcus faecalis: A Bactericidal, Anti-biofilm and Mechanistic Study, Microbiology Open, Sep 2018, https://doi.org/10.1002/mbo3.723. 10. Umeka Nayanathara, Nilwala Kottegoda, Inoka Perera, Thilini Kuruwita Mudiyanselage, Synthesis, photodegradable and antibacterial properties of polystyrene-cinnamaldehyde copolymer film, Polymer Degradation and Stability, https://doi.org/10.1016/j.polymdegradstab.2018.07.021. 11. Nimshi L. Fernando, Nilwala Kottegoda, Sumedha Jayanetti, Veranja Karunaratne, Dilushan R. Jayasundara, Stability of nano-hydroxyapatite thin coatings at liquid/solid interface, Surface & Coatings Technology 2018, 349, 24–31, https://doi.org/10.1016/j.surfcoat.2018.05.042. 12. GK Wijesinghe, PDTA Jayarathna,