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Explore Dhammika Gunasekera’s journey from Royal College head prefect to Genetech’s owner and philanthropic force in Sri Lanka. Dhammika Gunasekera Owner of Genetech and Managing Trustee of Genetech Research Institute (GRI) Dhammika Gunasekera is the Owner of Genetech after the demise of his beloved wife Dr. Maya Gunasekera, the Founder of Genetech. He is also the owner of Dienge purveyors of handcrafted silver, fine art, gems and jewellery. Dhammika greatly values generosity and helps a large number of people and institutions financially. For example, he has given donations to the Sri Lanka Cancer Society, sponsored the Devapathiraja College (a school founded by his grandfather Sir Ernest De Silva) Rugby team in Rathgama, a rural area in Sri Lanka and met university tuition fees of students. He was a partner at Messrs. U. N. Gunasekera, a construction firm in Sri Lanka established by his father. The first two five-star hotels in Sri Lanka, namely, Lanka Oberoi (Cinnamon Grand) and Ceylon Inter-Continental (Kingsbury) were built by this company. He graduated from Imperial College London in 1989 with first class honours in civil engineering (BEng). Broadening his horizons to the field of accountancy, he became a passed finalist of the Institute of Chartered Accountants of Sri Lanka in 1986. Furthermore, he topped his batch in the Bachelor of Science degree that he completed at University of Colombo in 1984. He was also the head prefect of Royal College, Colombo in 1980.

Testimonials “Taking part in “Advanced Certificate Course in Molecular Techniques for DNA Fingerprinting” and the “Internship Program in DNA Fingerprinting and Genetic Testing” have been a great experience for me. The hands-on training and detailed theoretical knowledge that I have gained from the course is invaluable, and the internship gave me a great understanding about real-world application of molecular biology techniques. The Scientists and instructors are really supportive and helped us to understand every single concept and all the practical applications from A to Z. I specially appreciate about providing an opportunity to carry out a research project, as I think that it would help me a lot by developing my research skills, scientific writing skills and a sense of confidence which will be really important in my further education and future career. I highly recommend this Course and the Internship to anyone who is passionate in the field of molecular biology and forensics.” Malisha Appuhami Post-A/L Student “I am excited to have completed the Advanced Certificate Course in Molecular Techniques for DNA fingerprinting at Genetech School of Gene Technology! As an ISO accredited laboratory, pioneering in molecular diagnostics, the facility instructed us on the use of various cutting edge molecular techniques focusing on, but not restricted to, DNA fingerprinting. Apart from this, students were provided with clear theory behind these techniques and DNA typing processes, including their applications and suitability across different cases. Despite the focus on forensics, it was clear these techniques are highly versatile and suitable for use across various aspects of life sciences. I am happy to share that I undertook the following as part of this course: Sample collection of biological evidence for DNA extraction DNA extraction using Chelex extraction methods and column-based DNA extraction kits DNA Quantification using the NanoDrop One spectrophotometer PCR amplification of STR markers and subsequent analysis via gel electrophoresis Multiplex PCR by AmpFLSTR™Identifiler™ PCR Amplification Kit for amplification of 15 STR loci Capillary electrophoresis using the ABI Genetic Analyzer 3500 and results interpretation via GeneMapper™ID-X Software Practical analysis of results/amplified STR markers for parentage testing Plant DNA extraction via CTAB method and amplification of the trnL intron barcoding region Mitochondrial sequence analysis using Chromas and MEGA software Sequence analysis for animal and plant barcoding using NCBI BLAST Grateful to the scientists and officers at Genetech for their guidance! Looking forward to using these skills soon!” Alina Marzook “A month has passed since I completed my three-month research project at Genetech and as I reflect on my time there, I’m overwhelmed with gratitude. This lab has shaped me in ways words can’t fully express & will always hold a special place in my heart. Walking into the lab every day was an incredible experience, not only professionally but also personally. I carry with me the knowledge and skills I gained, but more importantly, the memories made through challenges, breakthroughs, and those little triumphs that followed. This lab saw my moments of doubt transform into resilience. I’m deeply grateful to my supervisors and fellow interns for their guidance and inspiration, and I’m especially thankful to my Supervisor at Genetech Madam Mrs. Sumudu Wickramasekara. Her immense support and mentorship played a pivotal role in making this research a success. The camaraderie, encouragement, and support from everyone in the lab have truly made this journey unforgettable. Though our paths may diverge for now, I hope they cross again in the future. Thank you, Genetech for everything!” A student from SLIIT "The Advanced Certificate Course in Molecular Techniques for DNA Fingerprinting and the Internship Program were exceptional experiences that exceeded my expectations. The program offered abundant hands-on training, allowing me to refine my skills in DNA fingerprinting and genetic testing while gaining exposure to the latest advancements in molecular diagnostics and forensics. The supportive and approachable staff provided personalized guidance, ensuring a deep understanding of both foundational and advanced techniques. This practical, skills-focused approach made me industry-ready, and I was able to secure a job in the same field shortly after completing the program—a true testament to its quality and relevance. This course was worth far more than the investment, offering unparalleled opportunities to improve skills, expand knowledge, and gain a competitive edge in the job market. I highly recommend it to anyone looking to advance their career in molecular biology and diagnostics." Nimasha Liyanagedara, B.Sc (Hons), M.Sc. "The Advanced Certificate Course in Molecular Techniques for DNA Fingerprinting, as well as the Internship Program at Genetech, gave a unique chance to combine theory with practical experience. Working on a project focused on Y chromosome markers for forensic and kinship applications enhanced my skills in essential molecular techniques, including DNA extraction, PCR optimization, gel electrophoresis, and result analysis. Also, the internship helped me enhance my critical thinking and problem-solving skills as we worked on a research project. I am deeply grateful to the late Dr. Maya Gunasekera, founder of Genetech, whose legacy continues to inspire students like me. Also, I’d like to express my heartfelt gratitude to Dr. K.L. Nandika Perera, senior scientist and head of the department of molecular forensics at Genetech, as well as all the forensics scientists and Genetech staff, for their continuous encouragement, time, patience, and direction during our internship and research project. Thank you, Genetech, for everything. I wholeheartedly recommend this training to anyone seeking to advance in molecular genetics and forensic DNA analysis." Shashini Kariyawasam Undergraduate Student “I have successfully completed the internship at Genetech. This experience provided invaluable hands-on molecular laboratory practice, serving as a cornerstone in my academic and professional journey. A heartfelt thanks to madam Vajirapani de Silva, Ms. Yoshitha Wahalathanthri, Mrs. Sumudu Wickramasekara, Ms Bhagya Wijeratne, Mrs. Dimanthi Vithanage and Mr. Budhil de Silva for your unwavering guidance and support. Your mentorship has been invaluable.” Chamodi Jayathissa “I’m happy to share that I’ve obtained a new certification: Molecular Techniques for DNA Fingerprinting! Special thanks to Genetech and Dr Nandika for the amazing experience!” Methuli Linara Peththawadu

Discover Genetech’s specialized testing services: from pioneering molecular diagnostics and DNA typing in Sri Lanka to precise GM food and animal disease testing. Ensure accuracy with our PCR-based tests. Our Tests Molecular Diagnostics We pioneered the use of molecular diagnostics in Sri Lanka. We seek evidence of a disease at the basic causative level by detecting the nucleic acids based on PCR technology. Read More GM and Other Food Testing We use a PCR method to identify the most common genetic elements that are generally found in Genetically Modified (GM) crops. Our test can be applied to a wide range of food items including crops and processed food. Read More DNA Typing We pioneered the use of DNA typing for human identification for forensic casework and analysis of family relationships including parentage testing. Read More Sex Determination of Birds Many bird species are monomorphic; thus, males and females cannot be distinguished visually. We offer molecular sexing for proper gender assignment of a wide range of bird species with an accuracy of 99.9%. Read More Animal Testing We are the only firm to provide a PCR based animal disease testing service in Sri Lanka. We offer tests which detect Canine Parvovirus, Canine Distemper, Canine Babesiosis and Canine Ehrlichiosis. In addition to animal disease testing, we provide a cattle parentage testing service through the use of DNA typing. Read More View Price List

Join our hands-on practical courses and gene technology workshops for A/L students and teachers. Hands-on training in PCR, DNA extraction, gel electrophoresis, and more. Fees start at Rs. 6,000. Min 10 students/session. Laboratory Practical Courses for A/L Students and Teachers One day workshop on gene technology Laboratory safety and handling of micropipettes Polymerase Chain Reaction (PCR) DNA extraction for human blood Preparation of agarose gels and agarose gel electrophoresis Exam-oriented Q & A discussion on Unit 7 of the Advanced Level syllabus Medium of Instruction: Bilingual (English/Sinhala) Fee: Rs. 5,000 per person Three day course on gene technology qPCR (Real time PCR) - Theory and Practicals Laboratory safety and handling of micropipettes Extraction of DNA from human blood and plants Preparation of agarose gels and agarose gel electrophoresis Polymerase Chain Reaction (PCR) and gel electrophoresis of PCR products Basics in DNA profiling, DNA fingerprinting and DNA typing Basics in applications of PCR in disease diagnosis Fee: Rs. 18 ,000 per person (Minimum 10 students per session) View FAQs Contact us If you are interested in doing this course at Genetech, please submit the Inquiry Form below or email us at info@genetechsrilanka.com to receive further details. View Inquiry Form

Explore Genetech Research Institute’s cutting-edge life sciences research, collaborative projects, and technical services in Sri Lanka. Join us in advancing scientific innovation! Genetech Research Institute Genetech Research Institute (GRI) is a private, not-for-profit organisation that has been established with the vision of allowing objective oriented, independent scientific research in the field of life sciences in Sri Lanka. GRI has a staff of scientists and technical staff as well as a state-of-the-art Molecular Biology and Biochemistry research laboratory. GRI welcomes external researchers to inquire about collaborating with its scientific staff to carry out research in an efficient, dynamic environment. GRI is supported technically and scientifically by Genetech, which is Sri Lanka's first biotechnology company, and the premier practitioner of biotechnology in Sri Lanka. Publications Our scientists have contributed immensely in numerous journal publications and scientific conferences related to Molecular Biology. Student projects We have funded and facilitated undergraduate and postgraduate projects for students from many universities in Sri Lanka. Collaborative projects Collaboration is at the core of everything we do, and this includes working effectively with external researchers. Technical Services Our technical staff analyse samples provided by external researchers and deliver accurate results. Research Policies Our policies allow external researchers to access various facilities that will help meet their objectives. Legal & Ethical Guidelines We conform with all existing Laws of Sri Lanka regarding the performance of scientific research.

Discover our customised biotechnology solutions: molecular characterisation, DNA testing, PCR, fragment analysis, cell/plant culturing, and sequencing. Partner with us for innovative research. Customised Biotechnology Solutions We have the personnel and the facilities to accommodate requests from various industries and researchers for customised solutions in the areas of molecular characterisation (microbes, plants and animals), DNA-based testing of environmental samples, molecular epidemiology and molecular systematics. We are prepared to work with fellow scientists from other institutions on inter-laboratory comparisons and method development. Our service encompasses the techniques based on conventional and real time PCR, automated fragment analysis, cell culturing, plant tissue culturing and sequencing (CES and NGS). Contact us View a list of our recent projects

Learn how to ace your Genetech interview: review your CV, know your qualifications, research the company and industry trends. Highlight your strengths, be authentic, dress appropriately, ask questions, and stay positive. Interview Tips The key to a successful job interview is in the preparation. Review The first thing you must do is look over your CV. If you have been invited to an interview, it is because we found your CV impressive. Qualifications It may sound simple, but know your qualifications. Interviewers will have an interest in modules you’ve covered and projects you have worked on. Think about how you can use your qualifications, skills and experience to prove that they align with our job description. Research Conduct some research about Genetech and specifically the role you are interviewing for, the interviewers will expect you to know a bit about the firm, and why you are interested in working for us. Future If you are aiming to pursue a career with Genetech, then you must have a good understanding of what is happening in the industry and how this may influence your future. Notes If it helps, you can take notes to your interview. There is nothing wrong with referring to notes but ensure you do not to read directly from them throughout the interview. Strengths We will be assessing your strengths throughout the interview. This will allow us to identify how you may perform in the role, and it makes it a much more enjoyable experience. This also provides you a great opportunity to reflect on what you are good at. At the interview, we want to get to know the real, authentic you. Thus, whilst you may want to learn about Genetech and go through your previous experiences ahead of your interview, there is no need to come with prepared responses. Furthermore, the examples you use when answering questions do not always have to be work based. Feel free to talk about relevant personal experiences where appropriate. The questions may be tapping into your strengths and there is no ‘correct’ thing to say. Thus, answer honestly based on what feels most natural to you. Impression You can create a good impression by knowing who you are going to meet and arriving on time. The interviewers will also be expecting you to wear suitable business wear. Use I Use ‘I’ instead of ‘We’ even if you talk about something you have done as a team. Keep in mind that we are interested in hearing about your achievements and what your contributions were. Body Language Maintain eye contact but you do not need to stare, and smile and enjoy your interview with a positive attitude. Moreover, relax and do not rush your answers. It is fine if you need a moment before answering a question. Be conscious of your hand use and avoid fidgeting with props, such as a notebook or pen, because it can make you lose concentration. If you make a mistake at the interview, do not worry because nobody is perfect. Worrying about your mistakes will have a negative impact on your performance. Question Do not be afraid to ask questions especially if you are not sure about something. It may demonstrate you have done your research and are genuinely interested. Be Positive Let go of the negative things in the past, aim positively but expect nothing in the future, and enjoy every moment without any attachment.

Discover Genetech’s journal publications on genetic research and advancements in Sri Lanka, shaping the future of molecular diagnostics and biodiversity. Sathkumara, H. D., Merritt, A. J., Corea, E. M., Krishnananthasivam, S., Natesan, M., Inglis, T. J. J. & De Silva, A. D. (2018) Clinical, Bacteriologic, and Geographic Stratification of Melioidosis Emerges from the Sri Lankan National Surveillance Program. Am J Trop Med Hyg . 98(2), 607-615. Available from: doi: 10.4269/ajtmh.17-0441 Grifoni, A., Weiskopf, D., Arlehamn, C. S. L., Angelo, M., Leary, S., Sidney, J., Frazier, A., Phillips, E., Mallal, S., Mack, S. J., Tippalagama, R., Goonewardana, S., Premawansa, S., Premawansa, G., Wijewickrama, A., De Silva, A. D. & Sette, A. (2018) Sequence-based HLA-A, B, C, DP, DQ, and DR typing of 714 adults from Colombo, Sri Lanka. Hum Immunol . 79(2), 87-88. Available from: doi: 10.1016/j.humimm.2017.12.007 Patil, V. S., Madrigal, A., Schmiedel, B. J., Clarke, J., O'Rourke, P., de Silva, A. D., Harris, E., Peters, B., Seumois, G., Weiskopf, D., Sette, A. & Vijayanand, P. (2018) Precursors of human CD4+ cytotoxic T lymphocytes identified by single-cell transcriptome analysis. Sci Immunol . 3(19). Available from: doi: 10.1126/sciimmunol.aan8664 Nanayakkara, K. K., Rodrigo, U. G., Perera, K. L. N. & Nanayakkara, C. D. (2017) Pre-natal diagnosis of thalassaemia in Sri Lanka: A ten year review. J Obstet Gynaecol . 37(7), 861-863. Available from: doi: 10.1080/01443615.2017.1306841 de Silva, W.S.I., Perera, M.M.N., Perera, K.L.N.S., Wickramasuriya, & A.M., Jayasekera G.A.U. (2017) In silico Analysis of osr40c1 Promoter Sequence Isolated from Indica Variety Pokkali. Rice Science, Vol. 24 (4): 228-234 Available from: doi: 10.1016/j.rsci.2016.11.002 . Gunasekara, J.M.A., Jayasekera, G.A.U, Perera, K.L.N.S. & Wickramasuriya, A.M, (2017) Development of a Sri Lankan rice variety Bg 94-1 harbouring cry2A gene of Bacillus thuringiensis resistant to rice leaffolder [Cnaphalocrocis medinalis (Guenée)]. Journal of the National Science Foundation of Sri Lanka, 45(2): 143–157. Available from: doi: 10.4038/jnsfsr.v45i2.8180 Goonawardhana, N.D.S., Jayasekara, G.S.K.W., Elanahai, V., Udagama, P.V., & Fernandopulle N.D. (2017) Population genetic data for ten miniSTR loci in the Sri Lankan population. International Journal of Legal Medicine. 131(4):969-970. Available from: doi: 10.1007/s00414-016-1512-3 Tian, Y., Babor, M., Lane, J., Schulten, V., Patil, V. S., Seumois, G., Rosales, S. L., Fu, Z., Picarda, G., Burel, J., Zapardiel-Gonzalo, J., Tennekoon, R. N., De Silva, A. D., Premawansa, S., Premawansa, G., Wijewickrama, A., Greenbaum, J. A., Vijayanand, P., Weiskopf, D., Sette, A. & Peters, B. (2017) Unique phenotypes and clonal expansions of human CD4 effector memory T cells re-expressing CD45RA. Nat Commun. 8(1), 1473. Available from: doi: 10.1038/s41467-017-01728-5 Grifoni, A., Angelo, M. A., Lopez, B., O'Rourke, P. H., Sidney, J., Cerpas, C., Balmaseda, A., Silveira. C. G. T., Maestri, A., Costa, P. R., Durbin, A. P., Diehl, S. A., Phillips, E., Mallal, S., De Silva, A. D., Nchinda, G., Nkenfou, C., Collins, M. H., de Silva, A. M., Lim, M. Q., Macary, P. A., Tatullo, F., Solomon, T., Satchidanandam, V., Desai, A., Ravi, V., Coloma, J., Turtle, L., Rivino, L., Kallas, E. G., Peters, B., Harris, E., Sette, A. & Weiskopf, D. (2017) Global Assessment of Dengue Virus-Specific CD4+ T Cell Responses in Dengue-Endemic Areas. Front Immunol. Available from: doi: 10.3389/fimmu.2017.01309 Grifoni, A., Pham, J., Sidney, J., O'Rourke, P. H., Paul, S., Peters, B., Martini, S. R., de Silva, A. D., Ricciardi, M. J., Magnani, D. M., Silveira, C. G. T., Maestri, A., Costa, P. R., de-Oliveira-Pinto, L. M., de Azeredo, E. L., Damasco, P. V., Phillips, E., Mallal, S., de Silva, A. M., Collins, M., Durbin, A., Diehl, S. A., Cerpas, C., Balmaseda, A., Kuan, G., Coloma, J., Harris, E., Crowe Jr, J. E., Stone, M., Norris, P. J., Busch, M., Vivanco-Cid, H., Cox, J., Graham, B. S., Ledgerwood, J. E., Turtle, L., Solomon, T., Kallas, E. G., Watkins, D. I., Weiskopf, D. & Sette, A. (2017) Prior Dengue virus exposure shapes T cell immunity to Zika virus in humans. J Virol. 91(24). Available from: doi: 10.1128/JVI.01469-17 Uehara, A., Tissera, H. A., Bodinayake, C. K., Amarasinghe, A., Nagahawatte, A., Tillekeratne, L. G., Cui, J., Reller, M. E., Palihawadana, P., Gunasena, S., De Silva, A. D., Wilder-Smith, A., Gubler, D. J., Woods, C. W. & Sessions, O. M. (2017) Analysis of Dengue Serotype 4 in Sri Lanka during the 2012-2013 Dengue Epidemic. Am J Trop Med Hyg. 97(1), 130-136. Available from: doi: 10.4269/ajtmh.16-0540 Krishnananthasivam, S., Jayathilaka, N., Sathkumara, H. D., Corea, E., Natesan, M. & De Silva, A. D. (2017) Host gene expression analysis in Sri Lankan melioidosis patients. PLoSNegl Trop Dis . 11(6). Available from: doi: 10.1371/journal.pntd.0005643 Krishnananthasivam, S., Sathkumara, H. D., Corea, E., Natesan, M. & De Silva, A. D. (2017) Gene Expression Profile of Human Cytokines in Response to Burkholderia pseudomallei Infection. mSphere . 2(2). Available from: doi: 10.1128/mSphere.00121-17 Grifoni, A., Angelo, M., Sidney, J., Paul, S., Peters, B., de Silva, A. D., Phillips, E., Mallal, S., Diehl, S. A., Botten, J., Boyson, J., Kirkpatrick, B. D., Whitehead, S. S., Durbin, A. P., Sette, A. & Weiskopf, D. (2017) Patterns of Cellular Immunity Associated with Experimental Infection with rDEN2Δ30 (Tonga/74) Support Its Suitability as a Human Dengue Virus Challenge Strain. J Virol . 91(8). Available from: doi: 10.1128/JVI.02133-16 Natesan, M., Corea, E., Krishnananthasivam, S., Sathkumara, H. D., Dankmeyer, J. L., Dyas, B. K., Amemiya, K., De Silva, A. D. & Ulrich, R. G. (2017) Calprotectin as a Biomarker for Melioidosis Disease Progression and Management. J Clin Microbiol. 55(4), 1205-1210. Available from: doi: 10.1128/JCM.02284-16 Angelo, M. A., Grifoni, A., O'Rourke, P. H., Sidney, J., Paul, S., Peters, B., De Silva, A. D., Phillips, E., Mallal, S., Diehl, S. A., Kirkpatrick, B. D., Whitehead, S. S., Durbin, A. P., Sette, A. & Weiskopf, D. (2016) Human CD4+ T cell responses to an attenuated tetravalent dengue vaccine parallel those induced by natural infection, in magnitude, HLA restriction and antigen specificity. J Virol . 91(5). Available from: doi: 10.1128/JVI.02147-16 Bodinayake, C. K., Tillekeratne, L. G., Nagahawatte, A., Devasiri, V., Kodikara Arachichi, W., Strouse, J. J., Sessions, O. M., Kurukulasooriya, R., Uehara, A., Howe, S., Ong, X. M., Tan, S., Chow, A., Tummalapalli, P., De Silva, A. D., Østbye, T., Woods, C. W., Gubler, D. J. & Reller, M. E. (2016) Emergence of Epidemic Dengue-1 Virus in the Southern Province of Sri Lanka. PLoS Negl Trop Dis. 10(10). Available from: doi: 10.1371/journal.pntd.0004995 Kamaral, L. C. J., Dassanayaka, P. N., Perera, K. L. N. S. & Perera, S. A. C. N. (2016) SSR markers reveal the population structure of Sri Lankan yellow dwarf coconuts (Cocos nucifera L.). Tree Genetics & Genomes 12, 116. Available from: doi: 10.1007/s11295-016-1076-x Kirupananthan, R., Kamaral, L. C. J., Galhena, G. H., Perera, K. L. N. S. & Magamage, M. P. S. (2016) Address the public health and food security concerns of babesiosis through molecular detection of Babesia bovis in suspected carrier cattle of selected localities in Sri Lanka. Procedia Food Science 6: 213-219. Available from: doi: 10.1016/j.profoo.2016.02.053 Weiskopf, D., Angelo, M. A., Grifoni, A., O'Rourke, P. H., Sidney, J., Paul, S., De Silva, A. D., Phillips, E., Mallal, S., Premawansa, S., Premawansa, G., Wijewickrama, A., Peters, B. & Sette, A. (2016) HLA-DRB1 Alleles Are Associated With Different Magnitudes of Dengue Virus-Specific CD4+ T-Cell Responses. J Infect Dis. 214(7), 1117-1124. Available from: doi: 10.1093/infdis/jiw309 de Alwis, R., Bangs, D. J., Angelo, M. A., Cerpas, C., Fernando, A., Sidney, J., Peters, B., Gresh, L., Balmaseda, A., de Silva, A. D., Harris, E., Sette, A. & Weiskopf, D. (2016) Immunodominant Dengue Virus-Specific CD8+ T Cell Responses Are Associated with a Memory PD-1+ Phenotype. J Virol. 90(9), 4771-4779. Available from: doi: 10.1128/JVI.02892-15 Olsen, A., Chen, Y., Ji, Q., Zhu, G., De Silva, A. D., Vilchèze, C., Weisbrod, T., Li, W., Xu, J., Larsen, M., Zhang, J., Porcelli, S. A., Jacobs Jr, W. R. & Chan, J. (2016) Targeting Mycobacterium tuberculosis Tumor Necrosis Factor Alpha-Downregulating Genes for the Development of Antituberculous Vaccines. MBio. 7(3). Available from: doi: 10.1128/mBio.01023-15 Tissera, H., Amarasinghe, A., Gunasena, S., De Silva, A. D., Yee, L. W., Sessions, O., Muthukuda, C., Palihawadana, P., Lohr, W., Byass, P., Gubler, D. J. & Wilder-Smith, A. (2016) Laboratory-Enhanced Dengue Sentinel Surveillance in Colombo District, Sri Lanka: 2012-2014. PLoS Negl Trop Dis. 10(2). Available from: doi: 10.1371/journal.pntd.0004477 Weiskopf, D., Angelo, M., Zapardiel, J., Seumois, G., De Silva, A., De Silva, A. D., Vijay, P., Peters, B. & Sette, A. (2016) DENV-specific CD4 T-cells dominantly recognize capsid-derived epitopes and display a cytotoxic phenotype. J Immunol . 196 (1). Available from: https://www.jimmunol.org/content/196/1_Supplement/147.13/tab-article-info Padumadasa, C., Perera, K. L. N. & Sankalpani, E. M. N. (2016) DNA intercalation and cleavage studies of plumbagin and phenanthroline-based Cu(II) complex, [Cu(PLN)(PHEN)]NO3. Int J Chem Stud. 4(4), 87-90. Available from: https://www.chemijournal.com/archives/?year=2016&vol=4&issue=4&ArticleId=282&si=false Fernando, A. N., Malavige, G. N., Perera, K. L. N., Premawansa, S., Ogg, G. S. & De Silva, A. D. (2015) Polymorphisms of Transporter Associated with Antigen Presentation, Tumor Necrosis Factor-α and Interleukin-10 and their Implications for Protection and Susceptibility to Severe Forms of Dengue Fever in Patients in Sri Lanka. Journal of Global Infectious Diseases. 7(4): 157–164. Available from: doi: 10.4103/0974-777X.170501 Weiskopf, D., Cerpas, C., Angelo, M. A., Bangs, D. J., Sidney, J., Paul, S., Peters, B., Sanches, F. P., Silvera, C. G., Costa, P. R., Kallas, E. G., Gresh, L., de Silva, A. D., Balmaseda, A., Harris, E. & Sette, A. (2015) The Human CD8+ T-Cell Responses Against the 4 Dengue Virus Serotypes Are Associated With Distinct Patterns of Protein Targets. J Infect Dis . 212(11), 1743-1751. Available from: doi: 10.1093/infdis/jiv289 Page 2 of 3 Journal Publications 1 2 3

Discover our testing services for genetically modified (GM) foods. Our validated method ensures accurate results, supporting food safety and certification for local farmers, manufacturers, and exporters. Genetically Modified and Other Food Testing Definition Genetically modified (GM) foods are foods derived from organisms whose genetic material (DNA) has been modified through the introduction of a gene from a different organism. Currently available GM foods stem mostly from plants. What we do We use a PCR method to identify the most common genetic elements that are generally found in GM crops. The test is very sensitive and able to detect 0.1% GM content. In addition to the common genetic elements, on request, we also offer to detect other genetic elements that are assumed to have been integrated into the plants during the GM procedure. Our test can be applied to crops such as corn, soy, canola, and potato as well as processed food items such as tea, desiccated coconut, bakery & confectionery items, breakfast cereals & snacks, food additives, and others. Validation of method The test method has been validated according to the guidelines given by the European Commission Joint Research Centre for food samples and uses positive (European Certified reference materials) and negative control samples in order to assure the best qualitative results. Who we help Our testing facility has been utilised by the Food Control Administration Unit, Ministry of Health, Sri Lanka for the screening of imported seeds and food products as well as local farmers, manufactures and exporters to certify their products are free from GM food materials. Contact us View price list

Explore diverse research on genetic variation, virological surveillance, and forensic DNA evidence in Sri Lanka, presented at various academic conferences and symposiums Conference Papers and Communications Page 1 of 2 Nirmani, M. D., Perera, K. L. N. S. & Galhena, G. H. (2020) A preliminary virological surveillance of field-caught adult Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) mosquitoes in selected sites in the District of Colombo and Gampaha of Sri Lanka. Proceedings of Annual Research Symposium 2020, University of Colombo; 44. De Mel, W. D. Y., Illeperuma, R. J., Fernando, S. P., Pusweldeniya, B. M. J. & Padmalal, U. K. G. K. (2019) Genetic variation of Elephas maximus maximus in Maduru Oya national park in Sri Lanka, age 2019: International Conference on Agriculture, Green Economics and Energy, Sapporo, Japan, 2019. Perera, N., Galhena, G. & Ranawaka, G. (2019) Development of a novel X-chromosomal STR based dacaplex PCR assay for the kinship analysis of Sinhalese population. Proceedings of the Open University Research Sessions (OURS 2019), Open University of Sri Lanka, P19. Available from: https://ours.ou.ac.lk/wp-content/uploads/2019/12/Abastracts-Open-University-Research-Sessions-October-2019-19-20.pdf Perera, N., Galhena, G. & Ranawaka, G. (2019) Genetic profiling of six X-chromosomal STR loci among Tamil populations in Sri Lanka. Proceedings of the 39th Annual Sessions of the Institute of Biology. Institute of Biology Sri Lanka, P36. Perera, N., Galhena, G. & Ranawaka, G. (2019) Haplotype analysis of two X-chromosome STR clusters in Sinhalese population. Proceedings of Annual Research Symposium, University of Colombo, P230. Nirmani, M. D., Perera, K. L. N. S. & Galhena, G. H. (2019) Suitability of six microsatellite markers for evolutionary genetic studies of Asian tiger mosquitoes in Sri Lanka. Proceedings of Annual Research Symposium. University of Colombo; 227. Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2019) Microsatellite marker-based population dynamics of the dengue vector, Aedes albopictus in Wet and Dry Zones of Sri Lanka. Proceedings of the 75th Annual Sessions of The Sri Lanka Association for the Advancement of Science; 79. Pusweldeniya, B. M. J. & Illeperuma, R. J. (2018) The success of cigarette and beedi butts as forensic DNA evidence in Sri Lanka. Annual Scientific Sessions of the Medico-Legal Society of Sri Lanka, Colombo, 2018. Nirmani M. D., Perera, K. L. N. & Galhena, G. H. (2017) The effect of extensive mosquito migration on dengue control as revealed by phylogeny of dengue vector Aedes aegypti. World Academy of Science, Engineering and Technology, International Science Index, Medical and Health Sciences, 4(12), 304. Available from: https://www.researchgate.net/publication/327305382_The_Effect_of_Extensive_Mosquito_Migration_on_Dengue_Control_as_Revealed_by_Phylogeny_of_Dengue_Vector_Aedes_aegypti Nirmani M. D, Perera, K. L. N. & Galhena, G. H. (2017) A comparison of genetic variability of dengue vectors using microsatellite and EPIC markers. Proceedings of Annual Research Symposium 2017, University of Colombo; 268. Available from: https://www.researchgate.net/publication/327305343_A_comparison_of_genetic_variability_of_dengue_vectors_using_microsatellite_and_EPIC_markers Nirmani M. D., Perera, K. L. N. & Galhena, G. H. (2017) Genetic diversity and population dynamics of dengue vectors Aedes aegypti and Aedes albopictus in selected localities in Sri Lanka. Proceedings of the 73rd Annual Sessions of The Sri Lanka Association for the Advancement of Science; 169. Available from: https://www.researchgate.net/publication/327305541_Genetic_diversity_and_population_dynamics_of_dengue_vectors_Aedes_aegypti_and_Aedes_albopictus_in_selected_localities_in_Sri_Lanka Tharaka, K. P. D. & Illeperuma, R. J. (2017) Amount of DNA in forensic hair evidence play minor role in success for conventional nuclear DNA testing, Annual Scientific Sessions of the Medico-Legal Society of Sri Lanka, Colombo, 2017. Nirmani, M. D., Gangani, P. D., Perera, K. L. N. & Galhena, G. H. (2016) Aedes aegypti population dynamics help evaluation of current vector control measures in Sri Lanka. Proceedings of Annual Research Symposium 2016, University of Colombo; 282. Available from: https://www.researchgate.net/publication/327305108_Aedes_aegypti_population_dynamics_help_evaluation_of_current_vector_control_measures_in_Sri_Lanka Gangani, P. D., Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2016) Microsatellite markers reveal high genetic diversity among principal dengue vector, Aedes aegypti in Sri Lanka. Proceedings of the 36th Annual sessions of the Institute of Biology; 42. Nirmani, M. D., Gangani, P. D., Perera, K. L. N. & Galhena, G. H. (2016) Long distance passive migrations may explain the low genetic differentiation in principal dengue vector (Aedes aegypti) in Sri Lanka. Proceedings of the 36th Annual Sessions of the Institute of Biology; 43. Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Microsatellite markers reveal the spatial genetic structure of dengue vector Aedes aegypti in selected areas in Colombo district. Proceedings of the 35th Annual sessions of the Institute of Biology; 54. Available from: https://www.researchgate.net/publication/327305566_Microsatellite_markers_reveal_the_spatial_genetic_structure_of_dengue_vector_Aedes_aegypti_in_selected_areas_in_Colombo_district Nirmani, M. D., Madusanka, R. A., Perera, K. L. N. & Galhena, G. H. (2015) Use of ovitrap surveillance in assessing dengue outbreak risk in selected areas in Colombo district. Proceedings of Peradeniya University International Research Sessions 2015, University of Peradeniya; 229. Available from: https://www.researchgate.net/publication/327305370_Use_of_ovitrap_surveillance_in_assessing_dengue_outbreak_risk_in_selected_areas_in_Colombo_district Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Vector surveillance suggests an enhanced vector status for Ae. albopictus compared to Ae. aegypti in the Kandy district. Proceedings of Annual Research Symposium 2015, University of Colombo; 112. Available from: https://www.researchgate.net/publication/327305462_Vector_surveillance_suggests_an_enhanced_vector_status_for_Ae_albopictus_compared_to_Ae_argypti_in_Kandy_district Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Oviposition activity of dengue vectors in response to two different organic infusions. Proceedings of Annual Research Symposium 2015, University of Colombo; 113. Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Feasibility of using Exon-Primed Intron-Crossing (EPIC) markers to detect the genetic variation of a dengue vector in Sri Lanka. Proceedings of the 35th Annual Sessions of the Institute of Biology Sri Lanka; 60. Available from: https://www.researchgate.net/publication/327305637_The_feasibility_of_using_Exon-Primed_Intron-Crossing_EPIC_markers_to_detect_the_genetic_variation_of_a_dengue_vector_in_Sri_Lanka Kamaral, L. C. J., Perera, S. A. C. N., Perera, K. L. N. S. & Dasanayake, P. N. (2014). Population Structure of Sri Lanka yellow dwarf coconut variety as revealed by SSR markers. International Conference on Multidisciplinary Approaches 2014 (ICMA) pp 150. De Silva, W. H., Kamaral, L. C. J., Mohotti, S. N. K. & Perera, K. L. N. S. (2014) Development and validation of an allelic ladder for D18S51 short tandem repeat (STR) locus. Wayamba International Conference (WinC 2014). pp 251. Kamaral, L. C. J., Perera, K. L. N. S., Dasanayake, P. N. & Perera S. A. C. N. (2013) Variation of Sri Lanka yellow dwarf coconut variety at microsatellite marker loci. Proceedings of the 69th Annual Sessions. SLAAS. Part 1, pp 40. Gunasekera, J. M. A., Jayasekera, G. A. U., Fernandopulle, N. D., Perera, K. L. N. & De Silva, A. D. (2010) Development of Transgenic Plants for Leaffolder (Cnaphalocrosis medinalis) Resistance in Local Rice Varieties. Annual Research Proceedings, University of Colombo. pp 120. Available from: http://192.248.16.117:8080/research/handle/70130/381?mode=full 1 2

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