Publications

Publications  

2025

• Dilshani Sakunthala; Ruwan T. Perera; Rajith A. Perera; Jeewantha Premaratne; Janitha A. Liyanage. 

Health risk assessment of heavy metals in Azadirachta indica leaves and phytochemical profiling of its solvent extracts

International Journal of Secondary Metabolite, 2025 (In review)

• Ruwan T. Perera; Indu Chandrasoma; Bingun Perera; Harindu Rajapaksha; Dilshani Sakunthala; Rajith A. Perera; Janitha A. Liyanage. 

Comparison of drinking water quality of a Chronic Kidney Disease of uncertain etiology (CKDu) endemic area with a reference area based on topographic viewpoint; A study in Sri Lanka

EQA International Journal of Environmental Quality, vol. 70, pp 28-35, 2025

2024

• Rajith A. Perera; Ruwan T. Perera; Dilshani Sakunthala; Jeewantha Premaratne; Janitha A. Liyanage. 

Heavy Metal Bioaccumulation in Etroplus suratensis Residing in Inland Rivers and Amblygaster sirm in Marine Habitats in Sri Lanka: A Comparative Study

Journal of Multidisciplinary and Translational Research (JMTR), vol. 9, iss. I, pp 96–109, 2024.

Conference Papers

2025

• Sakunthala, K.A.D.D.; Ranasingha, W.D.S.S.N.; Perera, W.P.R.T.; Abeysinghe, T.; Liyanage, J.A.; Premaratne, W.A.P.J.

Biosorptive potential of curry leaf (Murraya koenigii) powder for lead removal: Isotherm and kinetic studies

In Proceedings of the 26th Peradeniya University International Research Symposium and Exposition (iPURSE), University of Peradeniya, Sri Lanka, 2025; pp. 237

• Sakunthala, K.A.D.D.; Deepajith, U.L.P.; Perera, W.P.R.T.; Abeysinghe, T.; Liyanage, J.A.; Premaratne, W.A.P.J. 

Exploring the lead adsorption potential of Garcinia quaesita (Goraka) fruit rinds as a readily available biosorbent

In Proceedings of the 26th Peradeniya University International Research Symposium and Exposition (iPURSE), University of Peradeniya, Sri Lanka, 2025; pp. 249

• Samod, K.A.V.; Sakunthala, K.A.D.D.; Perera. W.P.R.T.; Premaratne, W.A.P.J.; Liyanage, J.A.

Comparative adsorption study of cationic dyes on graphene oxide–coated sand composite

In 6th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2025; pp. 176

• Ranasingha, W.D.S.S.N.; Sakunthala, K.A.D.D.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A.; Premaratne, W.A.P.J. 

Isotherm, kinetic and thermodynamic insights into lead removal using curry leaves (Murraya Koenigii): A natural biosorbent from Sri Lanka

In 6th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2025; pp. 175

• Deepajith, U.L.P.; Sakunthala, K.A.D.D.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A.; Premaratne, W.A.P.J. 

Exploring the culinary associated biosorption potential of Garcinia quaesita for the adsorptive removal of lead (Pb)

In 6th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2025; pp. 207

• Induwari, R.P.D.S.; Sakunthala, K.A.D.D.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A.; Premaratne, W.A.P.J. 

Toxicological and phytochemical assessment of Murraya koenigii as a source of bioactive compounds

In 6th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2025; pp. 62

• Hettige, R.U.; Sakunthala, K.A.D.D.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A.; Premaratne, W.A.P.J. 

Bioactive and toxicological assessment of Garcinia quaesita (Goraka) fruit rinds from Panadura District, Sri Lanka

In 6th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2025; pp. 61

• Samod K. A. V.; Sakunthala, K.A.D.D.; Perera, W.P.R.T.; Premaratne, W.A.P.J.; Liyanage, J.A. 

Analysis of malachite green adsorption on multiple coated graphite oxide/sand (M-GO/S) composite by incorporating isotherm and kinetic studies

In Proceedings of the 54th Annual Sessions, Institute of Chemistry Ceylon, Sri Lanka, 2025; pp. 74

• Hettige R. U.; Sakunthala, K.A.D.D.; Deepajith U. L. P.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A; Premaratne, W.A.P.J.  

Evaluation of Garcinia quaesita fruit rinds as a sustainable biosorbent for effective cadmium removal

In Proceedings of the 54th Annual Sessions, Institute of Chemistry Ceylon, Sri Lanka, 2025; pp. 76

• Induwari R. P. D. S.; Sakunthala, K.A.D.D.; Ranasingha, W.D.S.S.N.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A; Premaratne, W.A.P.J.  

Investigation of curry leaves (Murraya koenigii) as a sustainable biosorbent for cadmium removal in aqueous solutions

In Proceedings of the 54th Annual Sessions, Institute of Chemistry Ceylon, Sri Lanka, 2025; pp. 75

• Ranasingha, W.D.S.S.N.; Sakunthala, K.A.D.D.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A; Premaratne, W.A.P.J.  

Comparative Analysis of Nutritional and Phytochemical Properties of Murraya koenigii and Micromelum minutum cultivated in Kurunegala district, Sri Lanka

In Proceedings of the 54th Annual Sessions, Institute of Chemistry Ceylon, Sri Lanka, 2025; pp. 34

• Deepajith, U.L.P.;  Sakunthala, K.A.D.D.; Perera. W.P.R.T.; Abeysinghe, T.; Liyanage, J.A; Premaratne, W.A.P.J.  

Nutritional and Phytochemical Profiling of Garcinia quaesita Dried Fruit Rinds: A Comparative Study of Commercially Available Samples in Sri Lanka

In Proceedings of the 54th Annual Sessions, Institute of Chemistry Ceylon, Sri Lanka, 2025; pp. 35

• Thathsarani, A.P.N.; Sakunthala, K.A.D.D.; Perera, W.P.R.T.; Premaratne, W.A.P.J.; Liyanage, J.A.

Impact of chemical fertilizer application on the availability of toxic metals for uptake by paddy crops

In 25th International Postgraduate Research Conference (IPRC), University of Kelaniya, Sri Lanka, 2025 (Accepted)

• Samarasekara H.M.H.O.; Sakunthala, K.A.D.D.; Perera, W.P.R.T.; Premaratne, W.A.P.J.; Liyanage, J.A.

Extraction and Characterization of Essential Oils from Ganoderma lucidum

In 62nd Annual Convention of Chemists (ACC) and International Conference, 2025 (Accepted)

• Ranasinghe C.R.; Sakunthala, K.A.D.D.; Perera, W.P.R.T.; Premaratne, W.A.P.J.; Liyanage, J.A.

Comparative study of solvent polarity effects on bioactive metabolite profiling of Ganoderma Lucidum

In 62nd Annual Convention of Chemists (ACC) and International Conference, 2025 (Accepted)

2024

• Sakunthala, K.A.D.D.; Perera, P.L.R.A.; Perera, W.P.R.T.; Premaratne, W.A.P.J.; Liyanage, J.A. 

Enhancing Methylene Blue Removal Efficiency Using Rice-husk Derived, Modified Activated Carbon Via Magnetic Particle Integration

In Proceedings of the 5th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2024; pp.172

• Sakunthala, K.A.D.D.; Perera, P.L.R.A.; Perera, W.P.R.T.; Liyanage, J.A.; Premaratne, W.A.P.J.     

Optimization of Rice Husk - Derived Activated Carbon for Efficient Methylene Blue Adsorption: Kinetics and Equilibrium Studies  

In Proceedings of the 2nd International Conference on Frontiers in Chemical Technology, Institute of Chemistry Ceylon, Sri Lanka, 2024; pp. 117. 

• Sakalasuriya, S.A.D.D.; Perera, P.L.R.A.; Perera, W.P.R.T.; Sakunthala, K.A.D.D.; Premaratne, W.A.P.J.; Liyanage, J.A. 

Assessment of Derivative Spectrophotometry for Analyzing Competitive Adsorption of Brilliant Green and Methylene Blue Using Multiple Coated Graphite Oxide/ Sand Composite

In Proceedings of the 5th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2024; pp. 147

• Lakshan, L.M.U.; Sakunthala, K.A.D.D.; Perera, P.L.R.A.; Perera. W.P.R.T.; Liyanage, J.A.; Premaratne, W.A.P.J.

Assessment of Heavy Metal Contamination in Surface Water, Sediment and Paddy Soil in CKDu Endemic Regions: A Comparative Study in Minipe and Dambagolla, Sri Lanka

In Proceedings of the 5th International Conference on Applied & Pure Sciences (ICAPS), University of Kelaniya, Sri Lanka, 2024; pp.156 

• Sakunthala, K.A.D.D.; Perera, P.L.R.A.; Perera, W.P.R.T.; Liyanage, J.A.; Premaratne, W.A.P.J.    

Statistical Assessment of Toxic Metal Concentrations and its Correlations in Paddy Soils: Comparing the Impact of Chemical and Organic Agricultural Practices in Sri Lanka

In Proceedings of the 2nd International Research Symposium on Multidisciplinary Approaches in Indigenous Knowledge Systems, Gampaha Wickramarachchi University of Indigenous Medicine, Sri Lanka, 2024; pp. 61.

2023

• Sakunthala, K.A.D.D., Perera, P.L.R.A., Perera, W.P.R.T., Liyanage, J.A., Premaratne, W.A.P.J.     

Impact of Organic Farming Practices on Toxic Metal Accumulation in Topsoil in Paddy Areas: A Comparative Study in Sri Lanka

In Proceedings of the 23rd International Postgraduate Research Conference, University of Kelaniya, Sri Lanka, 2023; pp. 32.