About me

About me

My photo, Ruchira Nalinga Wijesena, Ruchira Wijesena, Ruchira Nalinga, Ninithi creater, Ninithi blogThe will to delve into the unknown is a seductive impulse! Coupled with science, it can even change lives. For most of us there’s an archetypal desire that drives us to surrender to these impulses. For me it was a story of a one poor hungry man who strived to understand the world around him. Son of a blacksmith yet became one of the most influential scientists who transformed the world as we know it. He’s Michael Faraday. For me, his story was the perfect combination of never-ending passion met with the ideal opportunities – of course he had to strive hard to create much of these opportunities!

I was born in Sri Lanka, a land of beauty, rich in many things and despite all you might have heard, is a place where most of the people wish to live and let live in harmony. I grew up in a wonderful neighborhood in a place called Wattala, small city near to Colombo; the capital of Sri Lanka. I had a wonderful childhood, playing on the rice fields until its dark, exploring the strange bugs that inhabited the backwoods, watching stars flying by for hours are few of the many things I enjoyed back then (well I enjoy doing them even today). I have two younger brothers and father in my family. My mother died when I was sixteen.

For my higher education I was selected for University of Moratuwa, one of the best universities in Sri Lanka.From the early days of my university life, I was in awe with advanced materials – what man makes usingthe nature’s bounty – and amazing and infinite ways of engineering them. My special interest however was mainly drawn towards textile polymers which was my area of specialty during my undergraduate days. Textiles are literally closer to our hearts thus can be quite influential in changing our lives. These thoughts have led me to wonder about ways of engineering synthetic materials to the levels of structural complexity found in natural structures. So perhaps one day we can achieve the remarkable strength found in spider webs and amazing thermal properties found in wool fibers. A natural extension to this curiosity was on new polymer and polymer composites for textiles and wonderful applications they can bring to the table.

These thoughts were at their climax when I joined the Sri Lanka Institute of Nanotechnology (SLINTEC) as a graduate intern, turning down three confirmed job opportunities. During my time as a research scientist at SLINTEC, my undergraduate imaginations took shape and I learned new ways of modifying materials and witnessed the magical properties they exhibit. Slowly my scope of materials got widened as I read and started experimenting with a number of nanomaterials and nanostructures.

I see a purpose in life that goes beyond the pursuit of wealth or just satisfying someone else’s dream as an end goal. Conversely, my desire is to make, the power of imagination my reality. I am acutely aware that this is sought after by many but realized by only a few. What motivates me best is to explain why something would work and why something wouldn’t. That’s the only power that set me above everybody else and that’s the only power I’m compelled to seek. I desire to share this passion with many others who are out there. That’s the reason I started ninithi.com. I hope you will enjoy my blog!

My Journal publications

  1. RUCHIRA N. WIJESENA, NADEEKA TISSERA, RANGANA PERERA, K.M. NALIN DE SILVA, GEHAN A.J. AMARATUNGE, Slight carboxymethylation of cotton as a surface modification for enhanced grafting of nano TiO2 particles for self-cleaning fabrics, Journal of Molecular Catalysis A: Chemical, Impact factor – 3.379

  1. RUCHIRA N. WIJESENA, NADEEKA TISSERA, YASUN KARUNARATHNE,K.M. NALIN DE SILVA, GEHAN A.J. AMARATUNGE, A method for top down preparation of chitosan nanoparticles and nanofibers, Carbohydrate Polymers, doi:10.1016/j.carbpol.2014.10.055, Impact factor – 3.916

  1. RUCHIRA N. WIJESENA, NADEEKA TISSERA, RANGANA PERERA, K.M. NALIN DE SILVA, Side selective surface modification of chitin nanofibers on anionically modified cotton fabrics, Carbohydrate Polymers, Volume 109, 30, August 2014, Pages 56-63, Impact factor – 3.916

  1. NADEEKA D. TISSERA, RUCHIRA N. WIJESENA, J. RANGANA PERERA, K.M. NALIN DE SILVA, GEHAN A.J. AMARATUNGE, Hydrophobic cotton textile surfaces using an amphiphilic graphene oxide (GO) coating, Applied Surface Science, Volume 324, 1 January 2015, Pages 455-463, ISSN 0169-4332, Impact factor – 2.538

US patents

  1. Hydrophobic surface treatment compositions comprising titanium precursors, Palihenage Nadeeka Dushani TISSERA, Ruchira Nalinga WIJESENA, Rangana Perera, SILVA K. M. Nalin DE, WO 2015036855 A1, PCT/IB2014/001986

  1. Moisture management fabric , US20150072582 ,Palihenage Nadeeka Dushani TISSERA, Ruchira Nalinga WIJESENA, Rangana Perera, SILVA K.M. Nalin DE, WO 2015036862 A1, PCT/IB2014/002149

Conference publications

  1. RUCHIRA N. WIJESENA, NADEEKA TISSERA, RANGANA PERERA, L. KARUNANAYAKE, A. DE ALWIS, K.M. NALIN DE SILVA (2014), EXTRACTION AND CHARACTERIZATION OF CHITIN AND CHITOSAN BIOPOLYMERS FROM LOCAL PORTUNUS PELAGICUS (BLUE SWIMMER CRAB), International conference on Nano science and Nano technology, ICNSNT 2014, Colombo

  1. WIJESENA, R., PERERA, R., TISSERA, N., KARUNANAYAKA, L. & ALWIS, A. D. (2012) Effect of silver nanoparticles on florescence behavior of graphene oxide. International Conference on Advanced Materials (ICAMSE-12). Colombo, Sri Lanka.

  1. WIJESENA, R., TISSERA, N., PERERA, R., KARUNANAYAKA, L. & ALWIS, A. D. (2012) Modification of cotton fiber surfaces with α-chitin nanofibers. International Conference on Advanced Materials (ICAMSE-12). Colombo, Sri Lanka.

  1. WIJESENA, R., PERERA, R., TISSERA, N., KARUNANAYAKA, L. & ALWIS, A. D. (2012) Preparation and characterization of Indium doped Tin oxide coated glasses and its IR transmission control property. First National Nanotechnology Conference. Colombo, Sri Lanka.

  1. WIJESENA, R., PERERA, R., TISSERA, N. & KARUNANAYAKA, L.(2012) Chitosan/ Montmorillonite composite beads for pH triggered release of silver nanoparticles. International Symposium on Polymer Science and Technology (IIUPST 2012). Sri Jayawardanapura, Sri Lanka.

  1. WIJESENA, R., TISSERA, N., PERERA, R. & KARUNANAYAKA, L. (2012) Preparation and characterization of α-Chitin nanofibers from crab shells of Portunuspelagicus (blue swimmer crab). International Symposium on Polymer Science and Technology (IIUPST 2012). Sri Jayawardanapura, Sri Lanka.

  1. WIJESENA, R., TISSERA, N., PERERA, R., KARUNANAYAKA, L. & ALWIS, A. D. (2012) Preparation and characterization of superhydrophilic silica coatings and their application as antifogging glass. First National Nanotechnology Conference. Colombo, Sri Lanka.

  1. WIJESENA, R., TISSERA, N., PERERA, R. &KARUNANAYAKA, L (2012) Hydrodynamically and mechanically assisted wet spinning of elastomeric polyurethane filaments. International Symposium on Polymer Science and Technology (IIUPST 2012). Sri Jayawardanapura, Sri Lanka.

  1. NADEEKA TISSERA, RUCHIRA N. WIJESENA, YASUN K, K.M. NALIN DE SILVA (2014), Electricity conductive cotton fabric using reduced graphene oxide, International conference on Nano science and Nano technology, ICNSNT 2014, Colombo

  1. NADEEKA TISSERA, RUCHIRA N. WIJESENA, RANGANA PERERA,P SARASANANTHAM, A. DE ALWIS, K.M. NALIN DE SILVA (2014), Ultrasound induced cavitation for efficient dyeing of knitted cotton fabrics, International conference on Nano science and Nano technology, ICNSNT 2014, Colombo

  1. NISANSALA, P. H., WIJESENA, R. & M. KONESWARAN (2012) Development of Superhydrophobic Cotton Fabric Using Nanoparticles International Conference on Advanced Materials 2012 (ICAMSE-12). Colombo, Sri Lanka.

  1. PERERA, R., WIJESENA, R., TISSERA, N., KARUNANAYAKE, L. & ALWIS, A. D. (2012) Synthesis and characterization of Ag@TiO2 core shell nano particles and it’s UV induced electron hole separation. International Conference on Advanced Materials, Science and Engineering 2012 (ICAMSE-12). Colombo, Sri Lanka.

  1. TISSERA, N., WIJESENA, R., PERERA, R., KARUNANAYAKA, L. & ALWIS, A. D. (2012) Evolution of Carbon Nano Fibers From Poly Acrylo Nitrile (PAN) Nano Fibers. International Conference on Advanced Materials 2012 (ICAMSE-12) Colombo, Sri Lanka.

  1. NISANSALA, P. H., WIJESENA, R. & KONESWARAN, M. (2012) Development of Photocatalytic Active Construction and Building Materials Using ZnO Nanorods. International Conference on Sustainable Built Environment -2012. Kandy, Sri Lanka – Paper Accepted.

  1. TISSERA, N., WIJESENA, R., PERERA, R., KARUNANAYAKA, L. & ALWIS, A. D. (2012) Preparation and comparison of polyurethane nanocomposites. First National Nanotechnology Conference. Colombo, Sri Lanka.

  1. PERERA, R., WIJESENA, R., TISSERA, N. & KARUNANAYAKE, L. (2012) Enhancement of photocatalytic activity of nano TiO2 by doping nitrogen and its application as a stain removing dispersion. International Symposium on Polymer Science and Technology (IIUPST 2012). Sri Jayawardanapura, Colombo – Paper Accepted.

  1. PERERA, R., TISSERA, N., WIJESENA, R., KARUNANAYAKE, L. & ALWIS, A. D. (2012) UV blocking fabrics with nano Titanium dioxide. First National Nanotechnology Conference – 2012. Colombo, Sri Lanka.

  1. TISSERA, N., PERERA, R.,WIJESENA, R., KARUNANAYAKA, L. & ALWIS, A. D. (2012) Nano TiO2 embedded nanofibers spun from electrospinning technology to produce stain removing and UV blocking. International Symposium on Polymer Science and Technology (IIUPST 2012). Sri Jayawardanapura, Sri Lanka.

One thought on “About me

  1. Can you for me the small reactor with you nano tech , to make the methanol and water to the gas with temperatur 150 C, please tel me the cost.

    thank you
    Handie

    Like

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