Dr. Suranga Wickramarachchi

Prof. (Mrs) P. A. S. R. WickramarachchiProfessor

Email Address	:	suranga@kln.ac.lk
Telephone No	:	+94 (0)11 2 903 253 (ext: 253)
Office Location	:	B1 221/1
Teaching	:	Organic Chemistry, Natural products
Office hours available for students.	:
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Research Interests:

Isolation and identification of bioactive compounds from natural sources
Encapsulation of bioactive compounds with natural polymers
Antimicrobial activity of chitosan
Synthesis of silver nano particles and their applications and toxic potential

Awards

Selected Recent Research Publications:

Publications

U.G.P.P. Subasinghe and S. Wickramarachchi (2019) Encapsulation of cinnamon leaf oil within chitosan: formulation and characterization. Ceylon Journal of Science, 48(3): 279-284

R. Wickramarachchi, U. Samanthi, K. Wijeratne and P. A. Paranagama (2019). A new antioxidant active compound from the endolichenic fungus, Penicillium citrinum inhabiting the lichen, Parmotrema sp. International Journal of Pharmaceutical Sciences and Research, 10(7): 3412-3420

PASR Wickramarachchi , IN Samaratunge, CHTC Kaushalya, WPM Rasangika, PA Paranagama (2016). Activity of chitosan films enriched with the essential oil of Alpinia malaccensis rhizome against S. aureus, E. coli and C. Musae, J.Natn.Sci.Foundation Sri Lanka.44 (2):129-135
K.A.U. Samanthi, S. Wickramaarachchi, E.M.K. Wijeratne and P.A. Paranagama (2015). Two new antioxidant active polyketides from Penicillium citrinum, an endolichenic fungus isolated from Parmotreama species in Sri Lanka, J.Natn.Sci.Foundation Sri Lanka. 43 (2): 119-126
Samanthi, K. A. U., Wickramaarchchi, S., Wijeratne, E. M. K. and Paranagama, P. A. (2015) Two new bioactive poliketides from Curvularia trifolii, an endolichenic fungus isolated from Usnea sp., in Sri Lanka, J. Natn. Sci. Foundation Sri Lanka, 43(3): 217-224.
Hettiarachchi M.A., Wickramarachchi P. A. S. R., (2011). Synthesis of chitosan stabilized silver nanoparticles using gamma irradiation and characterization, J. Sci. Univ. Kelaniya. 6, 65-75.
Dinusha Jinasena, Pavithra Pathirathna, Suranga Wickramarachchi and Eshani Marasinghe, (2011). Effect of Chitosan (Unirradiated and Irradiated) Treatment on Anthracnose Disease and Its Potential to Increase the Shelf life of “Embul” Banana, International Journal of Environmental Science and Development, Vol.2(4): 248-252.
Dinusha Jinasena, Pavithra Pathirthna, Suranga Wickramarachchi, Eshani Marasinghe.(2011). Use of chitosan to control Anthracnose on “Embul” banana, in Proceedings of chemical, Biological & Environmental Engineering, International Conference on Asia Agriculture and Animal, Hong Kong, 56-60.
Mihiri Gamlath, Krishanthi Abeywickrama, Suranga Wickramarachchi. (2010). Root growth promotion of Ficus species during air layering, Cey. J. Sci. (Bio. Sci.) 39(1), 45-51.
P.A. Suranga R. Wickramarachchi, Stephen J. Spells. (2008), Determination of phase transitions in Y-shaped branched alkne, C₁₂₀H₂₄₁CH(C₁₉₅H₃₉₁)C₁₁₉H₂₃using raman spectroscopy, J Sci. Univ. Kelaniya, 4, 36-45.
Wickramarachchi, P. A. S. R., Spells S. J., De Silva, D. S. M.,(2007). Study of disorder in different phases of tetratriacontane and binary alkane mixture, using vibrational spectroscopy. Journal of Physical chemistry B, 111, 1604-1609.
De Silva, D. S. M., Gorce, J.P.,Wickramarachchi, P. A. S. R., Spells S. J.(2002). FTIR studies of molecular disorder in long chain n-alkanes: Chain tilt and chain end disorder. Macromolecular symposia, 184, 67-68.

Text Books

Structure Elucidation of Organic Compounds Using Spectroscopy: A work book, Problems and Answers. ISBN 978 955 9244 50 9
Fundamentals of Heterocyclic Synthesis. ISBN 978 955 7041 17 9