Department of Chemistry
Department of Chemistry
Academic Staff member

Dr. Y. M. A. L. W. Yapa

Senior Lecturer Gr.I

B.Sc. (Ruhuna, S.L.) , Ph.D (Toledo, USA),
Email - lalithyapa@chem.ruh.ac.lk
Office -
Extention - 4402

LinnkedIn ResearchGate Google Scholar

  • Organic Chemistry
  • Green Chemistry
  • Production of value added chemicals from renewable sources.
  • Organic Chemistry
  • In peer revived Journals
  • 3. Ajith Yapa Mudiyanselage, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto “Synthesis of ?,?-Difunctional Compounds via Cross Metathesis of Methyl Oleate and cis-2-butene-1,4-diol” Submitted.
  • 2. Ajith Yapa Mudiyanselage, Haoyi Yao, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto “Efficient Production of Alkanolamides from Microalgae.” Ind. Eng. Chem. Res., 2015, 54(16), 4060–4065
  • 1. Ajith Yapa Mudiyanselage, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto “A simple ring-closing metathesis approach for synthesis of PA 11, 12, and 13 precursors from oleic acid.” ACS Sustainable Chem. Eng., 2014, 2(12), 2831–2836. (Highlighted in SynFact of the Month)
  • Conferences Presentations:
  • 9. Fernando H.S.S., Lakmali W.G.M., Athukorala S.N.P., Jayasundera K.B. and Yapa Y.M.A.L.W. Synthesis of fatty acid diethanolamides from microalgal biomass. 7th Ruhuna International Science and Technology Conference, University of Ruhuna, Wellamadama, Matara, Sri Lanka; 01/2020.
  • 8. Kulasekara B. M. M. H., Yapa Y. M. A. L. W., Fernando K. R. Use of chemically modified Macaranga indica leaf powder for the Removal of Methylene Blue from aqueous solutions. 7th Ruhuna International Science and Technology Conference, University of Ruhuna, Wellamadama, Matara, Sri Lanka; 01/2019.
  • 7. Madhushani KD, Fernando KR, Yapa Y.M.A.L.W. Use of Sargassum sp. As a potential sorbent for Methylene blue in aqueous solutions. Wayamba International Conference, Wayamba University of Sri Lanka, Kuliyapitiya, Sri Lanka. 2018.
  • 6. Ajith Yapa Mudiyanselage, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto. Synthesis of ?, ? – difunctional compounds via Cross Metathesis of methyl oleate and cis-2-butene-1,4-diol. 252nd ACS Annual Meeting, Philadelphia, PA, USA. 2016
  • 5. Godwin Abel, Kim Nguyen, Ajith Yapa Mudiyanselage, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto. New Approaches for efficient synthesis of precursors of industrial Nylons from oleic acid. 20th Annual Green Chemistry and Engineering Conference, Portland, OR, USA. 2016.
  • 4. Ajith Yapa Mudiyanselage, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto. Synthesis of Nylon Precursors via Cross Metathesis of methyl oleate and unsaturated alcohols. 15th AiChE Annual Meeting, Salt Lake City, UT, USA. 2015.
  • 3. Godwin Abel, Ajith Yapa Mudiyanselage, Kim Nguyen, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto. Towards sustainable synthesis of Nylon 11 – 13 precursors using Ring Closing Olefin Metathesis strategy. 15th AiChE Annual Meeting, Salt Lake City, UT, USA. 2015.
  • 2. Ajith Yapa Mudiyanselage, Sridhar Viamajala, Sasidhar Varanasi, Kana Yamamoto Ring closing metathesis (RCM) – a new route for producing Nylon 11, 12 and 13 precursors from oleic acid, 14th AiChE Annual Meeting, Atalanta, GA, USA. 2014.
  • 1. YMA Lalith Weerasinghe, Kalutharge Nishantha Kumara, C. Liyanapathirana, Sarath Wanniaracchi, NPG Pushpitha, Hema MKK Pathirana: Quality of water in two tsunami camps in Weligama area. Workshop on the Tsunami and Post- Tsunami Recovery in the Southern Region of Sri Lanka. 2005, University of Ruhuna; 01/2005.
  • Patents:
  • 3. “Ring-closing metathesis approach to produce precursors of nylon 11, 12, and 13 from oleic acid.” United States, Utility Patent: No. 9,845,294 B2, Issued December 19, 2017. Kana Yamamoto, Sridhar Viamajala, Sasidhar Varanasi, Ajith Yapa Mudiyanselage, Godwin Ameh Abel
  • 2. “Production of alkanolamides from microalgal biomass “United States, Utility Patent Application:14-976662/D2014-07 December 21, 2015. Kana Yamamoto, Sridhar Viamakala, Sasidhar Varanasi, Ajith Yapa Mudiyanselage, Pramod Prasad Poudel
  • 1. “Cross metathesis approach to C11–13 fatty-chain amino esters from oleic acid derivatives. United States, Utility Patent Application: 53-6166/D201406; June 2015. Kana Yamamoto, Sridhar Viamajala, Sasidhar Varanasi, Kim Oliver Nguyen, Godwin Ameh Abel, Ajith Yapa Mudiyanselage.
  • 10.12.2005
  • Prof. R.H. Wijayanayake Gold Medal for highest aggregate marks at the Bachelor of Science (Special) Degree in Chemistry final examination held in 2004, University of Ruhuna, Matara, Sri Lanka
  • 30.10.2003
  • Martin Wickramasinghe Memorial Scholarship for highest aggregate marks in Level I examination in biological stream held in 2001, University of Ruhuna, Matara, Sri Lanka.
  • Student Counselor