{"id":25,"date":"2018-09-05T23:57:18","date_gmt":"2018-09-06T05:27:18","guid":{"rendered":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/?page_id=25"},"modified":"2026-10-26T20:52:42","modified_gmt":"2026-10-27T02:22:42","slug":"research","status":"publish","type":"page","link":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/research\/","title":{"rendered":"Research"},"content":{"rendered":"<p>[vc_row][vc_column][vc_column_text]<\/p>\n<ol>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Moneravilla, V. B., Rodrigo, D., Dharmaratne, G., Purasingha, S., Pushpakumara, A., Abeyasinghe, N., &#8230; &amp; <\/span><b>Gunewardene, S. <\/b><span style=\"font-weight: 400\">(2025). Random Forest Regression assisted Raman spectroscopy for authenticating the purity of virgin coconut oil. <\/span><i><span style=\"font-weight: 400\">Journal of Food Composition and Analysis<\/span><\/i><span style=\"font-weight: 400\">, 108784.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Samarathunga, L., Kalubowila, R., Jayasingha, L., Rodrigo, D., Jayathilaka, C., Kumara, R., &#8230; <\/span><b>Gunewardene, S<\/b><span style=\"font-weight: 400\">. &amp; Jayanetti, S. (2025). Evaluating the SERS sensing properties of electrodeposited nanostructured Cu2O\/Cu metasurfaces. <\/span><i><span style=\"font-weight: 400\">Microchemical Journal<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">219<\/span><\/i><span style=\"font-weight: 400\">, 116064.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ranaweera, D.M., de Silva, D.C., Samarasinghe, D., Perera, S., Kugalingam, N., Samarasinghe, S.R., Madushani, W.Y., Jayaweera, H.H., <\/span><b>Gunewardene, S<\/b><span style=\"font-weight: 400\">., Muneeswaran, K. and Gnanam, V.S., 2025. Development of a TaqMan-based dosage analysis PCR assay for the molecular diagnosis of 22q11. 2 deletion syndrome. <\/span><i><span style=\"font-weight: 400\">Genes &amp; Genetic Systems<\/span><\/i><span style=\"font-weight: 400\">, pp.24-00142.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ranaweera, D.M., de Silva, D.C., Samarasinghe, D., Perera, S., Kugalingam, N., Samarasinghe, S.R., Madushani, W.Y., Jayaweera, H.H., <\/span><b>Gunewardene, S<\/b><span style=\"font-weight: 400\">., Muneeswaran, K. and Gnanam, V.S., 2024. Development of a Low Cost Semiquantitative Polymerase Chain Reaction Assay for Molecular Diagnosis of Williams Syndrome. <\/span><i><span style=\"font-weight: 400\">Clinical Laboratory<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">70<\/span><\/i><span style=\"font-weight: 400\">(3).<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">De Silva, D., Ranaweera, D., Gunasekera, R., Samarasinghe, D., Perera, S., Panchananthan, N., Samarasinghe, S.R., Muneeswaran, K., <\/span><b>Gunewardene, S<\/b><span style=\"font-weight: 400\">., Gnanam, V. and Chandrasekharan, V., 2024, January. Velocardiofacial syndrome (VCFS)-determining the frequency of positive diagnosis using existing guidelines for genetic testing. In <\/span><i><span style=\"font-weight: 400\">EUROPEAN JOURNAL OF HUMAN GENETICS<\/span><\/i><span style=\"font-weight: 400\"> (Vol. 32, pp. 246-246)\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Boteju, W.I.W.Y., Gunarathna, M.K.A.S., Fonseka, T.L.M.D., Peiris, H.N.S., Silva, L.A.R., Jayathilaka, N.N.S.S., Jayasekara, L.A.G.D., Perera, P.N., Jayaweera, H.H.E., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">. and Jayawardhana, S., 2022. A quantitative approach to gemstone identification using Raman spectroscopy combined with machine learning. <\/span><i><span style=\"font-weight: 400\">Sri Lankan Journal of Physics<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">23<\/span><\/i><span style=\"font-weight: 400\">(1).<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Kalubowila, K.D.R.N., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Jayasingha, J.L.K., Dissanayake, D., Jayathilaka, C., Jayasundara, J.D., Gao, Y. and Jayanetti, J.S., 2021. Reduction-induced synthesis of reduced graphene oxide-wrapped Cu<\/span><span style=\"font-weight: 400\">2<\/span><span style=\"font-weight: 400\">O\/Cu nanoparticles for photodegradation of methylene blue. <\/span><i><span style=\"font-weight: 400\">ACS Applied Nano Materials<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">4<\/span><\/i><span style=\"font-weight: 400\">(3), pp.2673-2681.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Jayasingha, L., Jayathilaka, C., Kumara, R., Ohara, K., Kaumal, <\/span><b>M., Gunewardene<\/b><span style=\"font-weight: 400\">, S., Dissanayake, D. and Jayanetti, S., 2020. Nanoporous Cu<\/span><span style=\"font-weight: 400\">2<\/span><span style=\"font-weight: 400\">O nanotube\/nanorod array electrodes for non-enzymatic glucose sensing with high sensitivity and very low detection limit. <\/span><i><span style=\"font-weight: 400\">Electrochimica Acta<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">329<\/span><\/i><span style=\"font-weight: 400\">, p.135177.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Kalubowila, K.D.R.N., Jayathileka, K.M.D.C., Kumara, L.S.R., Ohara, K., Kohara, S., Sakata, O., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Jayasundara, J.M.D.R., Dissanayake, D.P. and Jayanetti, J.K.D.S., 2019. Effect of bath pH on electronic and morphological properties of electrodeposited Cu<\/span><span style=\"font-weight: 400\">2<\/span><span style=\"font-weight: 400\">O thin films. <\/span><i><span style=\"font-weight: 400\">Journal of The Electrochemical Society<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">166<\/span><\/i><span style=\"font-weight: 400\">(4), p.D113.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Bandara, K.N.D., Jayathilaka, K.M.D.C., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Dissanayake, D.P. and Jayanetti, J.K.D.S., 2017. Surface properties of sulphur based surface modified n-Cu<\/span><span style=\"font-weight: 400\">2<\/span><span style=\"font-weight: 400\">O thin films for enhanced liquefied petroleum gas sensing. <\/span><i><span style=\"font-weight: 400\">Journal of Physics D: Applied Physics<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">50<\/span><\/i><span style=\"font-weight: 400\">(48), p.485304.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Jayasingha, J.L.K., Kaumal, M.N., Jayathilaka, K.M.D.C., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Dissanayake, D.P. and Jayanetti, J.K.D.S., 2017. Surfactant free template assisted electrodeposited <\/span><i><span style=\"font-weight: 400\">n<\/span><\/i><span style=\"font-weight: 400\">\u2010type nano\u2010cubic Cu<\/span><span style=\"font-weight: 400\">2<\/span><span style=\"font-weight: 400\">O thin films for nonenzymatic glucose sensing. <\/span><i><span style=\"font-weight: 400\">physica status solidi (a)<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">214<\/span><\/i><span style=\"font-weight: 400\">(8), p.1700135.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Jayasingha, J.L.K., Jayathilaka, K.M.D.C., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Dissanayake, D.P. and Jayanetti, J.K.D.S., 2017. Electrodeposited <\/span><i><span style=\"font-weight: 400\">n<\/span><\/i><span style=\"font-weight: 400\">\u2010type cuprous oxide cubic nanostructures for liquefied petroleum gas sensing. <\/span><i><span style=\"font-weight: 400\">physica status solidi (b)<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">254<\/span><\/i><span style=\"font-weight: 400\">(2), p.1600333.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Mlodzianoski, M.J., Curthoys, N.M., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Carter, S. and Hess, S.T., 2016. Super-resolution imaging of molecular emission spectra and single molecule spectral fluctuations. <\/span><i><span style=\"font-weight: 400\">PloS one<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">11<\/span><\/i><span style=\"font-weight: 400\">(3), p.e0147506.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Allgeyer, E.S., Sterling, S.M., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Hess, S.T., Neivandt, D.J. and Mason, M.D., 2015. Combining Total Internal Reflection Sum Frequency Spectroscopy Spectral Imaging and Confocal Fluorescence Microscopy. <\/span><i><span style=\"font-weight: 400\">Langmuir<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">31<\/span><\/i><span style=\"font-weight: 400\">(3), pp.987-994.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Avilov, S., Berardozzi, R., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Adam, V., Hess, S.T. and Bourgeois, D., 2014. In cellulo evaluation of phototransformation quantum yields in fluorescent proteins used as markers for single-molecule localization microscopy. <\/span><i><span style=\"font-weight: 400\">PloS one<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">9<\/span><\/i><span style=\"font-weight: 400\">(6), p.e98362.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Gudheti, M.V., Curthoys, N.M., Gould, T.J., Kim, D., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Gabor, K.A., Gosse, J.A., Kim, C.H., Zimmerberg, J. and Hess, S.T., 2013. Actin mediates the nanoscale membrane organization of the clustered membrane protein influenza hemagglutinin. <\/span><i><span style=\"font-weight: 400\">Biophysical journal<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">104<\/span><\/i><span style=\"font-weight: 400\">(10), pp.2182-2192.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Gabor, K.A., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Santucci, D. and Hess, S.T., 2011. Localization-Based Super-Resolution Light Microscopy. <\/span><i><span style=\"font-weight: 400\">Microscopy Today<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">19<\/span><\/i><span style=\"font-weight: 400\">(4), pp.12-16.<\/span><\/li>\n<li style=\"font-weight: 400\"><b>Gunewardene, Mudalige S<\/b><span style=\"font-weight: 400\">., Fedor V. Subach, Travis J. Gould, Gregory P. Penoncello, Manasa V. Gudheti, Vladislav V. Verkhusha, and Samuel T. Hess. &#8220;Superresolution imaging of multiple fluorescent proteins with highly overlapping emission spectra in living cells.&#8221; <\/span><i><span style=\"font-weight: 400\">Biophysical journal<\/span><\/i><span style=\"font-weight: 400\"> 101, no. 6 (2011): 1522-1528.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Gould, T.J., Gudheti, M.V., <\/span><b>Gunewardene, M.S<\/b><span style=\"font-weight: 400\">., Gosse, J.A. and Hess, S.T., 2009, October. Optical Nanoscopy: FPALM Breaks the Diffraction Limit. In <\/span><i><span style=\"font-weight: 400\">Laser Science<\/span><\/i><span style=\"font-weight: 400\"> (p. LSWA2). Optica Publishing Group.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Gould, Travis J., <\/span><b>Mudalige S. Gunewardene<\/b><span style=\"font-weight: 400\">, Manasa V. Gudheti, Vladislav V. Verkhusha, Shu-Rong Yin, Julie A. Gosse, and Samuel T. Hess. &#8220;Nanoscale imaging of molecular positions and anisotropies.&#8221; <\/span><i><span style=\"font-weight: 400\">Nature methods<\/span><\/i><span style=\"font-weight: 400\"> 5, no. 12 (2008): 1027-1030.<\/span><\/li>\n<\/ol>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text] Moneravilla, V. B., Rodrigo, D., Dharmaratne, G., Purasingha, S., Pushpakumara, A., Abeyasinghe, N., &#8230; &amp; Gunewardene, S. (2025). Random [&hellip;]<\/p>\n","protected":false},"author":20,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/pages\/25"}],"collection":[{"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/comments?post=25"}],"version-history":[{"count":8,"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/pages\/25\/revisions"}],"predecessor-version":[{"id":100,"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/pages\/25\/revisions\/100"}],"wp:attachment":[{"href":"https:\/\/www.res.cmb.ac.lk\/physics\/siyath-gunewardene\/wp-json\/wp\/v2\/media?parent=25"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}