NAYA 5 psd



Research Scientist
Materials Technology Section


Bsc. Honors - Chemistry (University of Peradeniya , 2000)


Tel: +94 011 2373800, Email: This email address is being protected from spambots. You need JavaScript enabled to view it. , This email address is being protected from spambots. You need JavaScript enabled to view it.

Specialized Fields

  • Rubber and plastic processing technology
  • Rubber Testing (Latex and Dry rubber products)
  • Polymer synthesis
  • Polymer irradiation
  • Material characterization
  • Nanotechnology (Photocatalysis, Graphene, etc.)
  • Dye sensitized solar cells
  • Industrial Solid Waste Management

Interest Areas       

  • Development of metal adsorbents and hydrogel using irradiation technology
  • Development of protocols for polymer products
  • Testing Laboratory accreditation- ISO 17025
  • Use of Nanomaterials for solar cells
  • Photocatalytic surface coatings






  1. LDC Nayanajith, Yuji Ueki and Noriyaki Seko Synthesis of Polylactic acid non-woven fabric based Metal adsorbent with ammine groups. The second Takasaki Advance Radiation Research Symposium. 2007.
  2. D.A. De Silva, B.U. Hettiarachchi, L.D.C. Nayanajith, M.D.Y. Milani and J.T.S. Motha. Development of a PVP/ kappa carrageenan /PEG hydrogel dressing for wound healing application in Sri Lanka. Journal of the National Science Foundation of Sri Lanka, 2011 39(1):25-33.
  3. Manoratne C.H., Nayanajith L.D.C., Milani M.D.Y., Divyasekar W, Motha J.T.S, Kottegoda I.R.M. Development of low cost and highly effective self-cleaning, anti-bacterial industrial ceramic tiles.
  4. Synthesis and characterization of few-layer graphene from high purity vein graphite. Iresha R. M. Kottegoda, X. Gao, C.H. Manorathne, L.C.D. Nayanajith, J-Z. Wang and H-K. Liu, (2013 Submitted)


International Communication

Synthesis and Characterization of Graphite Composites for Application in Lithium ion Batteries and in Solar Cells. Manoratne C.H,  Nayanajith L.D.C., Kottegoda I.R.M. 2012, , International Conference on Chemical Sciences Institute of Chemistry, Sri Lanka, 2012 June


Local Communication

Synthesis and characterization of graphene oxide from natural graphite L.C.D. Nayanajith. C.H. Manorathne, Iresha R. M. Kottegoda, First National Nanotechnology Conference. 2012.



Development of Self-cleaning & Anti-Microbial Ceramic Tile. Manoratne C.H, Nayanajith L.D.C, Motha J.T.S., Kottegoda I.R.M., Milani M.D.Y Patent No. 15302.The Registry of Patents and Trade Marks, Sri Lanka, 2011.

Development of highly stable dispersion of TiO2. M.G.M.U.Ismail, C.H.Manoratne, J.T.S.Motha, L.D.C.Nayanajith, A.S.Liyanage Patent No:15093. The Registry of Patents and Trade Marks, Sri Lanka.


Major Projects Undertaken

1)    Synthesis of graphene and graphene composites for photovoltaic applications.

(2)    Development of self-cleaning tile.

(3)    Development of wound healing dressing by radiation processing of hydrogel.

Last Updated on Friday, 10 April 2020 15:02

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