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You are here: OUSL / Faculty of Health Sciences / Dept. of Pharmacy

Dr. A.S.D. Wickramasinghe

BPharm (SJP), PhD (RUH)

Senior Lecturer

Head of the Department

Department of Pharmacy
  • Central Campus, Faculty of Health Sciences, The Open University of Sri Lanka
  • Office: 112881000, Ext: 6601
  • aswic@ou.ac.lk

Sujeevi graduated with her Bachelor of Pharmacy (BPharm) degree from University of Sri Jayewardenepura in 2016 and earned her PhD in Pharmaceutical Biochemistry from University of Ruhuna in 2024. She is a Senior Lecturer in Pharmacy with over seven years of experience in teaching in the areas of Pharmaceutical Sciences. Her research interests focus on areas of Pharmaceutical Sciences, including natural products based drug development and nanoparticle based drug delivery.

Pharmaceutical Sciences

Natural products based drug development, Nanoparticle based drug delivery

Senior Lecturer in Pharmacy, Department of Pharmacy, Faculty of Health Sciences, The Open University of Sri Lanka (2024 – present)

Lecturer in Pharmacy, Department of Pharmacy, Faculty of Health Sciences, The Open University of Sri Lanka (2018 – 2024)

Demonstrator, Department of Pharmacy, Faculty of Health Sciences, The Open University of Sri Lanka (2017-2018)

Demonstrator, Department of Allied  Health Sciences, Faculty of Medical Sciences, University of Sri Jayewardenepura (2016-2017)

FMU3302- Physical Pharmacy, FMU3300- Biochemistry, FMU6301-Biopharmaceutics, FMU6300- Pharmaceutical Biotechnology and Genetic Engineering

Wickramasinghe, A.S.D.,  Attanayake, A.P., Chapter 5 – Chitosan-based nanomaterials, multiple forms, and characterization, Editor(s): N. Ali, M. Bilal, A. Khan, T.A. Nguyen, Chitosan-Based Hybrid Nanomaterials, Elsevier, 2024, Pages 91-106, ISBN 9780443218910, https://doi.org/10.1016/B978-0-443-21891-0.00005-6

Wickramasinghe, A.S.D., Attanayake, A.P., Kalansuriya, P., Arawwawala, L.D.A.M., 2025. Antidiabetic, antihyperlipidemic activities of gelatin nanoparticles encapsulated with Murraya koenigii (L.) Spreng. in high fat diet–fed streptozotocin-induced Wistar rats. Chemistry and Biodiversity, 22: e202402965. https://doi.org/10.1002/cbdv.202402965

Wickramasinghe, A.S.D., Kalansuriya, P., Attanayake, A.P., 2024. Gelatine nanoparticles encapsulating three edible plant extracts as potential nanonutraceutical agents against type 2 diabetes mellitus. Journal of Microencapsulation, 41(2), pp.94–111. https://doi.org/10.1080/02652048.2024.2313230

Wickramasinghe, A.S.D., Kalansuriya, P., Attanayake, A.P., 2023. Herbal extracts encapsulated nanoliposomes as potential glucose-lowering agents: an in vitro and in vivo approach using three herbal extracts. Journal of Pharmaceutical Sciences, 112 (2023), pp.2538-2551. https://doi.org/10.1016/j.xphs.2023.06.017.

Wickramasinghe, A.S.D., Kalansuriya, P., Attanayake, A.P., 2022. Biochemical characterization of high fat diet fed and low dose streptozotocin induced diabetic Wistar rat model. Journal of Pharmacological and Toxicological Methods, 113 (2022), p.107144. https://doi.org/10.1016/j.vascn.2021.107144.

Wickramasinghe, A.S.D., Kalansuriya, P., Attanayake, A.P. 2022. Nanoformulation of plant-based natural products for type 2 diabetes mellitus: From formulation design to therapeutic applications. Current Therapeutic Research, 96(2022), p.100672. https://doi.org/10.1016/j.curtheres.2022.100672.

Wickramasinghe, A.S.D., Kalansuriya, P., Attanayake, A.P., 2021. Herbal medicines targeting the improved β-cell functions and β-cell regeneration for the management of diabetes mellitus. Evidence-Based Complementary and Alternative Medicine, (2021), 2920530. https://doi.org/10.1155/2021/2920530.

Samarasekara, P.W.G.D.P., Dilsha, R.A.N., Wickramasinghe, A.S.D., Pathirana, D.H., Sendanayake, L.R., Wijekoon, S., Amarasiri, H.A.D.B., 2022. Possible drug-drug interactions in the prescriptions of discharged patients at National Hospital Sri Lanka in Colombo, Ceylon Journal of Science, 51(5), pp. 603-607.

Wickramasinghe, A.S.D., Attanayake, A.P., Wijesiri, T.W., Peiris, H.H., Mudduwa, L.K.B., 2024. Pancreatic and hepatic histopathology of high-fat diet fed streptozotocin-induced Wistar rat model of type 2 diabetes mellitus. Ceylon Journal of Science, 53(2), pp. 235-242. https://doi.org/10.4038/cjs.v53i2.8274

 

Wickramasinghe, A.S.D., Kalpitha, A.A.N., Perera, P.P.R., Chandrika, U.G., 2016. Effect of traditional cooking on in vitro bioaccessibility and microstructure of β-carotene and starch, in yellow-fleshed Manihot esculenta. Journal of Food and Nutrition Sciences, 4(4), 91-97. https://doi.org/10.11648/j.jfns.20160404.13

Wickramasinghe,A.S.D., Kalpitha, A.A.N., Perera, P.P.R., Chandrika, U.G., 2018. A preliminary study on estimated glycaemic index and microstructure of starch, in boiled Cucurbita moschata (squash) found in Sri Lanka. International Journal of Advanced Research, 6 (May). pp. 506-512 (ISSN 2320-5407).

Wickramasinghe A.S.D., Attanayake A.P., Kalansuriya P. (2023, June). Herbal extracts encapsulated gelatin nanoparticles as potential glucose-lowering agents, Proceedings of the 20th Academic Sessions, University of Ruhuna, Sri Lanka, p. 112.

Wickramasinghe, A.S.D., Attanayake, A.P., Kalansuriya, P. (2023, January). Histopathological changes in the pancreas of high-fat diet fed streptozotocin induced Wistar rats. Proceedings of the 10th Ruhuna International Science and Technology Conference, University of Ruhuna, Sri Lanka, p. 20

Wickramasinghe, A.S.D., Attanayake, A.P.,  Kalansuriya, P. (2021, January). Optimization and assessment of in vivo glucose-lowering activity of Cassia auriculata L. flower extracts encapsulated nanoliposomes. Proceedings of the Ruhuna International Science and Technology Conference, University of Ruhuna, Sri Lanka, p. 38.

Wickramasinghe, A.S.D., Attanayake, A.P., Kalansuriya, P. (2021, October). Optimization of high fat diet fed streptozotocin induced Wistar rat model for screening antidiabetic agents. Proceedings of the International Conference on Applied and Pure Sciences, University of Kelaniya, Sri Lanka, p.27

Wickramasinghe, A.S.D., Attanayake, A.P., Kalansuriya, P (2021, July). Glucose-lowering activity of Coccinia grandis (L.) Voigt leaf extract encapsulated nanoliposomes in Wistar rats induced with diabetes mellitus. Proceedings of the 3rd Conference, College of Biochemists of Sri Lanka, Sri Lanka, p. 49

Wickramasinghe, A.S.D., Attanayake, A.P., Kalansuriya, P (2021, March). Optimization of encapsulation efficiency of Coccinia grandis (L.) Voigt extract encapsulated nanoliposomes. Proceedings of the 18th Academic Sessions, University of Ruhuna, Sri Lanka, p. 95

Wickramasinghe, A.S.D., Attanayake, A.P., Kalansuriya, P. (2021, March). Effect of water: ethanol ratio on extraction yield, total polyphenol content and total flavonoid content of selected Sri Lankan medicinal plants. Proceedings of the 18th Academic Sessions, University of Ruhuna, Sri Lanka, p. 97

Attanayake, K. G. A. P., Kalansuriya, P., & Wickramasinghe, A. S. D. (2025). A gelatin-based
nanoformulation for type 2 diabetes mellitus and its associated comorbidities
(Sri Lankan Patent No: 23406). National Intellectual Property Office, Sri Lanka.

Registered Pharmacist- Sri Lanka Medical Council (SLMC)

Life Member- Sri Lanka Association for Laboratory Animal Science (SLALAS)

Life Member- Sri Lanka Association for Advancement of Science (SLAAS)

Life Member- Pharmaceutical Society of Sri Lanka (PSSL)

Life Member- College of Biochemists of Sri Lanka (CBSL)