Ms.Thevaki John Gnanakarunyan

Research activities

Supervised nearly 65 undergraduate student research projects of BSc Hons Medical Laboratory Sciences students, BPharm Hons students and BSc Hons Nursing students and students from Open university of Sri Lanka.

Published Orations in the Scientific forums

1. Delivered Theme Seminar Presentation on “Surviving with Typhoid,  Challenges in the context of Jaffna peninsula” at the Annual Scientific sessions of the Jaffna Science Association(JSA), held in May 2015
2. Published Chairperson‘s address titled as “ Infectious Diseases in children’ at the Twenty third Annual Scientific sessions of the Jaffna Science Association(JSA), in May 2016 as the Sectional Chairperson of the Section C of Jaffna Science Association

Reviewer of Journals, International and National Conferences

Served as a reviewer for

1. 7^th Undergraduate Research Symposium, FAHS, University of Jaffna in 2025
2. 2^nd International Research Conference on Healthy Delights in 2024
3. 6^th Undergraduate Research Symposium, FAHS, University of Jaffna in 2024
4. 5^th Undergraduate Research Symposium, FAHS, University of Jaffna in 2023
5. 4^th Undergraduate Research Symposium, FAHS and Faculty of Medicine, University of Jaffna in 2022
6. 1^st International Research Conference on Healthy Delights in 2022
7. 3^rd Undergraduate Research Symposium, Faculty of Medicine, University of Jaffna in  2021
8. External Reviewer in Ethical Review Sub committee of Faculty of Medicine UoJ
9. Served as a member of the editorial committee for the 10^th year Magazine of the Unit of Allied Health Sciences in 2016

Convener, Secretary, Session Chair or Organizing committee member at National and International Research Conferences

1. Organizing committee member, 7^th Undergraduate Research Symposium, FAHS, 2025
2. Contributed as the Conference convenor of the 2^nd   International Research Conference on Healthy Delights – Aarokiyam 2024 (ICHD 2024)
3. Conference Secretary of 13^th Annual Conference and Scientific Sessions of Sri Lankan Society for Microbiology held in December 2024
4. Event Manager of the 1^st  International Research Conference on Healthy Delights – Aarokiyam 2022 (ICHD 2022)
5. Session Chair for the 3^rd Undergraduate research symposium at FAHS
6. Assistant Secretary Jaffna University International Research Conference JUICe in 2018
7. Organizing Committee member, Undergraduate Research Symposium 2018, Faculty of Medicine, UoJ

Research Conference or Research symposium or workshop  participated

1. Participated in the 14^th  Annual Conference and Scientific Sessions of Sri Lankan Society for Microbiology  on 31^st  January 2026, conducted at IIHS, Colombo
2. Participated in the 7^th Undergraduate  Research Symposium  on 5^th April 2025
3. Workshop on “Supervision of undergraduate students” conducted by SSM, Jaffna chapter- October 17^th 2025
4. Workshop on “Academic writing” conducted by SSM, Jaffna chapter-October 15^th 2025
5. Participated Annual Scientific Sessions, JSA 2025
6. Participated in the 13^th  Annual Conference and Scientific Sessions of Sri Lankan Society for Microbiology  on 7^th December 2024
7. Participated the 2^nd International Research Conference on Healthy Delights 2024 on 12^th November 2024
8. Participated in the 6^th Undergraduate  Research Symposium  on 5^th April 2024
9. Participated in the 5^th Undergraduate  Research Symposium  on 28^th March 2023
10. Participated in the 4^th Undergraduate  Research Symposium  on 3^rd February 2022
11. Participated the 1^st International Research Conference on Healthy Delights 24^th August  2022
12. Participated in the 3^rd  Undergraduate  Research Symposium  on 19^th January 2021
13. Participated in the Annual Scientific Sessions, Jaffna Medical Association 2019  on 4 – 6^th August 2019
14. Attended workshop for the Self Evaluation Report(SER) writing for the Programme Review (PR) in State Universities in 2019 held at UGC.
15. Participated as a student counsellor in the sensitization workshop on Understanding Sexual and Gender based violence (SGBV) workshop organised for the student counsellors  of University of Jaffna on 21^st June 2018
16. Participated Annual Scientific Sessions, Jaffna Science Association in 2018
17. Participated in the workshop on undergraduate research held on 14^th and 15^th February 2018 at Faculty of Medicine
18. Participated Annual Scientific Sessions, Jaffna Science Association in 2017
19. Participated in the 3^rd Annual Conference and Scientific Sessions of Sri Lankan Society for Microbiology on 24^th October 2014
20. Participated in the HETC Symposium 2014 titled as National Development through Research and Innovation on 7^th and 8^th July 2014
21. Participated in the workshop on Use of Molecular Methods for the diagnosis of infectious Diseases held at Faculty of Medicine, University of Peradeniya in 23-24^th June 2012
22. Participated in the workshop on Psychological Approach in Human Resource Development held on 2^nd and 3^rd December 2009 at Faculty of Medicine, University of Jaffna
23. Participated in the workshop on Management on 8^th 9^th August 2009 at the Faculty of Medicine, University of Jaffna
24. Participated in the workshop on Modern approaches in Management from 2^nd to 5^th December 2009 Faculty of Medicine, University of Jaffna
25. Participated in the certificate course in “Research Ethics Review” conducted by the Ethics Review Committee, Faculty of Medicine, University of Colombo, 24^th and 25^th of April 2008
26. Participated 7^th National Conference held by Hospital Infection Society of India in 2003
27. Participated Tamil Nadu and Pondicherry IAAM Chapter meeting held  under the auspices of the Indian Association of Medical Microbiologists in 1^st March 2003.
28. Underwent Training programme at Pasteur Institute of India Coonoor, Nilgiris, India from 23.09.2002 to 28.09.2002
29. Participated Tamil Nadu and Pondicherry IAAM Chapter meeting held  under the auspices of the Indian      Association of Medical Microbiologists in 8^th September 2001
30. Underwent Vocational Training Programme at The Bio-Gene Diagnostics and Research Centre Ahsok Nagar, Chennai from May to June 1998

Administrative  Roles in the University of Jaffna

1. Serving as Head, Department of Medical Laboratory Sciences, FAHS, University of Jaffna from March 2020 – February 2026
2. Coordinator Medical Laboratory Sciences, UAHS, UoJ 2018 – 2019
3. Member of the Senate, University of Jaffna from March 2020 to February 2026
4. Member Technical Evaluation Committee 2022- 2024
5. Chairperson Health Promotion Committee 2020-2021, FAHS, University of Jaffna
6. Member Research Committee 2020 to 2026, Faculty of Allied Health Sciences University of Jaffna
7. Member Building and Planning Committee, Faculty of Allied Health Sciences University of Jaffna
8. Member of Internal Quality Assurance Cell, FAHS from 1^st March 2024
9. Chairperson, Curriculum Evaluation Committee on Curriculum for BSc Hons in Physical Education
10. Member IT Committee, Faculty of Allied Health Sciences, 2024 University of Jaffna
11. Member We Be Cell, FAHS, – 2020-2021
12. Member Students Welfare committee, FAHS, 2020
13. Member, Sub- committee on Physiotherapy Curriculum Development, Faculty of Allied Health Sciences, University of Jaffna
14. Member Medical Education Cell, Faculty of Medicine 2018 and 2019
15. Appointed as the Senior Treasurer for Allied Health Sciences Students Union in 2011 for the academic year 2009/ 2010
16. Member, Sports Advisory Committee University of Jaffna in 2008
17. Elected representative for Committee on curriculum from AHS at Faculty of Medicine 2007

Membership in the scientific organizations and services provided

1. Life member of Jaffna Science Association (JSA)
2. Life member of Sri Lankan Society of Microbiology (SSM)
3. Served as the council member of Sri Lankan Society for Microbiology from March 2023 todate
4. Faculty coordinator for Interfaculty Quiz and Drama competition for World AMR Awareness week (WAAW) 2024 conducted by College of Microbiologists and Ministry of Health Sri Lanka
5. Faculty coordinator for Interfaculty Quiz and Drama competition for World AMR Awareness week (WAAW) 2023 conducted by College of Microbiologists and Ministry of Health Sri Lanka
6. Secretary SSM Jaffna Chapter from February 2023 todate
7. Chairperson Section C (Medical Sciences) of JSA in 2015- 2016
8. Secretary Section C (Medical Sciences) of JSA in 2007-2008

1. Research Award I- for Marketable Innovation 2025, granted by the University Business Linkage (UBL) of the University of Jaffna, January 2026.
2. Research Award II- for Marketable Innovation 2025, granted by the University Business Linkage (UBL) of the University of Jaffna, January 2026.
3. Awarded “ Tribalizing women Leader” by CGEE on 12^th March 2025
4. Research Award for Marketable Innovation 2023, granted by the University Business Linkage (UBL) of the University of Jaffna, 2023.
5. Award of Scholarship for MPhil. Programme – HETC Project awarded in 2011

Journal Publications

1. Shalini, R., Kannathasan, S., Gnanakarunyan, T.J., and Sivasinthujah, S. 2026 Developing a modified mycological culture medium for Malassezia furfur by supplementing Sabouraud dextrose agar with extracted lipid oil from egg yolk. Asian Journal of Mycology 9(1): 185-197
2. u.e.w.duraiswamyRajarajeswaran Thangarajah, ThevakiJ. Gnanakarunyan ,Rajanthi Ramachandran , Losana Kajenthirasenan , Rukshani M.R.H. , Sanjana Madubashini Weerasinghe , Hansani H.K.P. Dissanayake , 2025, Wcn25-4006 Incidence of pyuria, culture positivity and antibiotic sensitivity of isolated pyuria and associated factors among chronic kidney disease (CKD) patients attending nephrology clinic, Teaching Hospital Jaffna, Sri Lanka https://www.sciencedirect.com/science/article/pii/s2468024924033667

3. Mufeena, M. M. F,. Wathooth, A. M. A. Ashra, M. R. F., Gnanakarunyan, T.J., Mafras, S.S. J. A. M. S. Jayatilake, J, A,. Ramachandran, R., Thayalini.T, 2025 evaluation of the antibacterial activity of camellia sinensis (green tea) extract against streptococcus mutans. Sri Lankan Journal of Infectious Diseases15(1)
4. Malaravan, S., Nirubini, A.S., Sivasinthuja Srikokulan., Thevaki Gnanakarunyan., Development and Antibacterial Characterization of Hand Sanitizer Gel from Mint Leaf Extract (Mentha arvensis L.) KDU Journal of Multidisciplinary studies
5. Diviyagahage, C.M., Thuvaragan, S., Gnanakarunyan,T.J. and Srikaran,R., 2021. Formulation and Characterization of Essential Oils Based Antibacterial Hand Sanitizer Gels. Pharmaceutical Journal of Sri Lanka, 11(1), pp.14–26. DOI: http://doi.org/10.4038/pjsl.v11i1.65
6. Sinnathurai Thuvaragan, Nishadini, N.V.C., Thevaki Gnanakarunyan and Srikaran, R., 2021. Comparative evaluation of antibacterial activity of solvent fractions and essential oil of Cyperus rotundus L. Rhizomes The Journal of Phytopharmacology 10(3)
7. Tharminy Najal, Chandrakumar, S. Gnanakarunyan,T.. and Thuvaragan, T., 2020 Bacterial contamination of used eye drops and knowledge on safe usage among glaucoma      patients at tertiary hospital, Sri Lanka. Gari International Journal of Multidisciplinary Research, 06(05)

8. Iyampillai, T., Michael, J.S., Mathai, E., Mathews, S. (2004) Use of Chromagar medium in the differentiation of Candida species. Is it Cost effective in developing countries. Annals of Tropical Medicine and Parasitology, 98(3) : 279-282.

Peer  reviewed conference publications

1. Kariyawasam UKTD, Munasinghe OI, Dissanayake DMWMGHM, Gnanakarunyan TJ ,Balagobi B and Ramachandran R (2023), Prevalence and type of culture positive bacteria among urolithiasis patients with clinically suspected urinary tract infection, admitted to Teaching hospital ,Jaffna , Proceedings of Jaffna Science Association Twenty-Ninth Annual sessions Volume:29, No:01,2023
2. Fernando, W.M.L., Gnanakarunyan, T.J., Sarma, S.T., Thileebphan, B., and Kalki, P., (2019) Occurrence of Staphylococcus aureus and Pseudomonas aeruginosa in infected wounds and their antimicrobial susceptibility patterns in patients admitted to surgical wards at Teaching Hospital Jaffna. Proceedings of Jaffna Medical Association Annual Scientific Sessions 2019.
3. Gnanakarunyan, T.J., Noordeen, F., Thevanesam, V., Sooriyakumar, T., (2014). Usefulness of PCR in the diagnosis of Typhoid fever, National development through Research and innovation HETC symposium 2014.
4. Gnanakarunyan, T.J., Thevanesam, V., Gamage, T.M., (2014). Determination of diagnostic cut-off value for the Widal test in the Jaffna District.3^rd Annual conference and scientific sessions of the Sri Lankan Society for Microbiology 2014.

Abstracts publications

1. Vithusan, V., Kolinsan, K., Sinthuja, S., Karunya, P., Amaya, G.P., Kisnujan, S., Saseevan, S., Gnanakarunyan, T.J., Mark Mithulan, F.J., Ramachandran, R.and Kajendran, A. 2026 Evaluating stool PCR as a diagnostic tool for H.pylori in dyspeptic patients: A Comparison with gastric biopsy PCR. Proceedings of 13^th Ruhunu International Science and Technology Conference, University of Ruhunu
2. Vithushan, V. , Kolinsan, K. , Kisnujan S. , Saseevan, S, Gnanakarunyan, T.J. , Mark Mithulan, F.J. , Ramachandran, R. and Kajendran, A. 2026 Prevalence and risk factors of Helicobacter pylori infection among dyspeptic patients at Teaching Hospital, Jaffna: A molecular-based cross-sectional study BOOK OF ABSTRACTS 14th ANNUAL CONFERENCE AND SCIENTIFIC SESSIONS SSM 2025 Volume 13 31st January 2026
3. Chandrathilaka, M.A.H.S., Jayalath, J.A.T.N., Chandrasiri, K.D.K.D., Gnanakarunyan T.J., Ramachandran, R. and Moorthy, R.G. 2026 Comparison of methicillin-resistant Staphylococcus aureus (MRSA) among healthcare workers at Teaching Hospital, Jaffna and the community. BOOK OF ABSTRACTS 14th ANNUAL CONFERENCE AND SCIENTIFIC SESSIONS SSM 2025 Volume 13 31st January 2026
4. Shalini, R. , Kannathasan, S., Baskarasingam, A.,  Gnanakarunyan, T.J. and  Sivasinthujah S., (2025)Growth optimization of Malassezia furfur on Sabouraud Dextrose Agar (SDA) supplemented with extracted egg yolk oil: Determination of minimum volume requirements, Book of Proceedings, International Research Conference in Health Sciences, , University of Sri Jeyawardenapura 2025
5. Christina, T., Lukirtha, S., Tharshika, K. , Sivasinthujah, S. and Gnanakarunyan, T.J., (2025) Formulation and evaluation of antifungal gel for tinea corporis by using Achyranthes aspera leaves extract. Book of Proceedings, International Research Conference in Health Sciences, FAHS, University of Sri Jeyawardenapura
6. Vinujan, K., Nusra, N. , Rishma, N. , Gnanakarunyan, T.J. , Rajanthi, R. and Sutharshini S.2 (2025)Bacterial Pathogens and Antimicrobial Susceptibility in Paediatric Urinary Tract Infections at Teaching Hospital Jaffna,  Proceedings of 3^rd  International Research Symposium of the Faculty of Allied Health Sciences University of Ruhuna, Galle, Sri Lanka
7. Doranegama, W.M.A.P.M. , Thupaksiga, B. , Kasthuriarachchi, K.A.S.T., Gamage, G.G.O.K. , Gnanakarunyan ,T., Dilakshana, K. and Sathya S.(2025) Synergistic Antibacterial Activity of Methanolic Extract of Cinnamomum zeylanicum Bark and Curcuma longa Rhizome. Proceedings of 3^rd  International Research Symposium of the Faculty of Allied Health Sciences University of Ruhuna, Galle, Sri Lanka
8. Faseeha, M.F.F. , Mafrina, M.I.F. , Mufees, K.R.M. , Gnanakarunyan, T.J., Dilakshana, K. and Sathya, S (2025) Antifungal activity of methanolic extracts of Abelmoschus esculentus pods and Salvia hispanica L. seeds against Candida albicans Proceedings of the 7^th Undergraduate Research Symposium, Faculty of Allied Health Sciences, University of Jaffna
9. Kalaiagan, S., Priyanthan, J., Dhilukshan, N., Losana. K . and Gnanakarunyan, T.J.(2025) Prevalence of asymptomatic bacteriuria and associated factors in type 2 diabetes patients attending the diabetic center, Teaching Hospital, Jaffna Proceedings of the 7^th Undergraduate Research Symposium,  Faculty of Allied Health Sciences, University of Jaffna
10. Sinthuja, S. , Kaarunya, P., Amaya, G.P., Saseevan, S., Gnanakarunyan, T.J., Kajendran, A., Ramachchandran, R. and Mark Mithulan, F.J. (2025) Detection of Helicobacter pylori using stool PCR and associated factors among patients with gastroduodenal disorders at Teaching Hospital, Jaffna, Proceedings of the 7^th Undergraduate Research Symposium  Faculty of Allied Health Sciences, University of Jaffna
11. Mahinsha J*1, Elaxchiya A1 , Akalya T1 Gnankaruniyan TJ (2025) Prevalence of Candida species in urinary tract infections among hospitalized patients in medical wards at Teaching Hospital, Jaffna Proceedings of the 7^th Undergraduate Research Symposium, Faculty of Allied Health Sciences, University of Jaffna
12. Wijewardhane, R.I.H., Samaraweera, S.A.P.K., Hapitigama, R.H.G.I., Gnanakarunyan, T,J., Ramachandran, R., Saravanabavananthan, S., and Kumbukage, PSP Prevalence of Asymptomatic Bacteriuria, in Patients with Cancer, Attending Trail Cancer Hospital, Tellippalai, Sri Lanka 17^th International Research Conference KDUIRC, 2024.
13. Sabeeha Banu, H.U., Fathima Shifka, A.R., Sarfaras, M.S., Midulan, M.,Kobika, T., Gnanakarunyan, T and  Ramachandran, R. 2024 Impact of Storage Time and Temperature on the Stability of Extracted SARS-CoV-2 RNA for qRT-PCR Analysis Conference: TASME Technological Advances in Science, Medicine, and Engineering Conferences 2024, at Canada
14. Fathima Ruzna, F.K.R., Hasna. S., Nifras, M.N., Gnanakarunyan, T.J., Ramachandran, R., and Thirumaran, B (2024), Identification of bacteria in ear infection patients attending ENT clinic, Teaching Hospital Jaffna, Proceedings of 2^nd International Research Conference on Healthy Delights, FAHS, UoJ 2024.
15. Mufeena, M.M.F., Wathooth, AMA Ashra, MRF Gnanakarunyan, T.J., Mafras FSS Jayatilake, JAMS Ramachandran,R., and Thayalini, T., (2024) Evaluation of the antibacterial activity of Camellia sinesis(green tea) extract against Streptococcus mutans, 13^th Annual Conference of the Sri Lankan Society for Microbiology 2024
16. Vidana, P.H, Semasinghe, T, Kumarapperuma, M, and Gnanakarunyan T.J, and Saseevan S (2024), Evaluation of nutrient agar and antibiotic assay medium 1 as cost effective alternatives to Muller-Hinton agar for antibiotic sensitivity testing, Proceedings of 2^nd International Research Conference on Healthy Delights 2024.
17. Rukshani M.R.H, Weerasinghe S.M, Dissanayake S.H.K.P, Gnanakarunyan T.J, Thangarajah B.R, Ramachandran R, Losana K (2024), Prevalence of pyuria, culture positivity and antibiotic sensitivity test pattern of isolated bacteria among chronic kidney disease patients attending Nephrology clinic, Teaching Hospital Jaffna, Proceedings of 2^nd International Research Conference on Healthy Delights 2024.
18. Mahrifa M.M.F, Hassna M.N.F, Mufeetha M.F, Ramachandran R, Gnanakarunyan T.J. (2024), Prevalence and antibiotic sensitivity of MRSA in wounds at OPD, Teaching Hospital Jaffna, Proceedings of 2^nd International Research Conference on Healthy Delights 2024.
19. Ashik M. R, Shakira M.Y.F, Nawal M.N.F, Gnanakarunyan, T.J, Abeywardena M, Kumarasinghe P (2024), Study of culture and antibiotic sensitivity isolates in patients with urinary tract infection at OPD National Hospital Kandy, Proceedings of 2^nd International Research Conference on Healthy Delights2024.
20. Wathooth AMA, Ashra MRF, Mufeena MMF, Gnanakarunyan, T.J, Shamil Mafras FS, Jayatilake JAMS, Rajanthi Ramachandran, Thayalini T (2024), isolate the Steptococcus mutans from dental caries in patients attending dental clinic , Teaching Hospital Jaffna. Proceedings of International Research Conference in Health Sciences 2024.
21. Uthpala RM, Wijewardhana BADIM, Pemadasa DAIS, Sivasinthujah S, Gnanakarunyan T.J. (2024), In vitro evaluation of antibacterial activity of leaf extracts of Atalantia ceylanica Proceedings of International Research Conference in Health Sciences 2024
22. Abinaya R, Thupaksiga B, Ashimi AGAS, Thillainathan K, Gnanakarunyan, T.J. (2024), Evaluation of probiotic characteristics of Lactobacillus spp. Isolated from plaque samples taken from patients with dental caries attending dental unit, Teaching Hospital Jaffna. Proceedings of International Research Conference in Health Sciences 2024.
23. Wathooth AMA, Ashra MRF, Mufeena MMF, Gnanakarunyan, T.J, Shamil Mafras FS, Jayatilake JAMS, Rajanthi Ramachandran, Thayalini T (2024), isolation of Steptococcus mutans from dental caries and in-vitro assessment of their antibiotic sensitivity pattern, Proceedings of the 6^th Undergraduate Research Symposium
24. Thuvaragan S, Gnanakarunyan, T.J, Bandaranayaka TD, Horshington AS, Fernando KMO, (2024) ,Antibacterial and antioxidant activity of different solvent extractions of leaves and bark of Erythrina variegate, Proceedings of the 6^th Undergraduate Research Symposium 2024.
25. Cafoor FN, Najeem FN, Haseeb HF,  Thillainathan K, Gnanakarunyan, T.J,  Sivasinthujah S (2024),  The staining ability of natural flower extracts as alternative dyes for bacterial staining, Proceedings of the 6^th Undergraduate Research Symposium 2024.
26. Rupasinghe KMUK, Patabendige IWL, Pathirana UPPS, Srikokulan S, Gnanakarunyan T.J, Srikaran R (2023),Evaluation of antibacterial activity of root extracts of herbal plant, Leucas zeylanica ,Proceedings of the 5^th Undergraduate Research Symposium 2023.
27. Kariyawasam UKTD, Munasinghe OI, Dissanayake DMWMGHM, Gnanakarunyan TJ. ,Balagobi B and Ramachandran R (2023), Prevalence and type of culture positive bacteria among urolithiasis patients with clinically suspected urinary tract infection, admitted to Teaching hospital ,Jaffna , Proceedings of Jaffna Science Association Twenty-Ninth Annual sessions Volume:29, No:01,2023
28. Praveena T, Niroji S, Lojiny M, Thuvaragan S, Gnanakarunyan TJ, Srikaran R (2023), Formulation and evaluation of poly herbal topical anti- bacterial ointment. Proceedings of the 5th Undergraduate Research Symposium 2023.
29. Malarvarnan S, Sivasinthujah S, Gnanakarunyan TJ,(2023),Formulation and evaluation of MENTHA ARVENSIS leaves extract containing hand sanitizer, Proceedings of Jaffna Science Association, Twenty-Ninth Annual sessions Volume:29, No:
30. Rupasinghe, C.S., Gnanakarunyan, T.J., Ramachandran, R., Sarma, T., Pallavan, E., and Surenthirakumaran R (2021), Bacteria in burn wound, antibiotic sensitivity pattern, associated risk factors among burn patients admitted to Surgical wards and Plastic surgery unit, Teaching Hospital Jaffna. Proceedings of the 4^th Undergraduate Research Symposium 2021
31. Jayawardana, A.P., Gnanakarunyan, T.J., Ramachandran, R., Coonghe, P.A.D., and Thangarajah B R, (2021), Prevalence of nasal carriage of Staphylococcus aureus and its antimicrobial resistance pattern in patients on hemodialysis, at Hemodialysis Unit , Teaching Hospital Jaffna. Proceedings of the 4^th Undergraduate Research Symposium 2021
32. Thilakarathne, P.K.G.N.N., Gnanakarunyan, T.J., Ramachandran, R., and Coonghe, P.A.,D (2021), Prevalence of urinary bacterial pathogens, their antimicrobial susceptibility patterns, and the associated risk factors among the catheterized patients in Medical and Surgical wards, Teaching Hospital, Jaffna. Proceedings of the 4^th Undergraduate Reasearch Symposium 2021.
33. Attanayaka, H.RY, Gnanakarunyan, T.J., Ramachandran, R., Coonghe, P.A.D.,and Athavan M (2021), Prevalence and antibiotic sensitivity pattern of selected pathogenic bacteria in the sputum of patients with non- cystic fibrosis bronchiectasis attending Respiratory Clinic, Teaching Hospital Jaffna, Proceedings of the 4^th  Undergraduate Research Symposium 2021.
34. Thamiliny, K., Kumanan, K., Gnanakarunyan, T.J., (2020). Prevalence of Acinetobacter spp and Pseudomonas spp contamination in stethoscope diaphragm of health care workers in medical and paediatric units, Teaching Hospital Jaffna and their antibiotic sensitivity pattern, Proceedings of Jaffna Science Association Twenty Seventh Annual Sessions Volume:27, No:01
35. Jayawardhane, S.M, Gnanakarunyan, T.J, Ramachandran, R, and Coonghe, P.A.D., (2020) Bacteria causing ear canal infections (otitis externa) and their antibiotic sensitivity from mobile phone headsets used by Allied Health Sciences students at University of Jaffna ,Proceedings of the 3^rd Undergraduate Research Symposium 2020.
36. Jayasekara, J. M. A.. S, Surenthirakumaran, R., Ramachandran, R, Gnanakarunyan, T.J. (2020). Nasal carriage of Methicillin-resistant Staphylococcus aureus (MRSA) among healthcare workers at selected units of Teaching Hospital Jaffna, Proceedings of the 3^rd Undergraduate Research Symposium 2020.
37. Fernando, W.M.L., Gnanakarunyan, T.J., Sarma, S.T., Thileebphan, B., and Kalki, P., (2019) Occurrence of Staphylococcus aureus and Pseudomonas aeruginosa in infected wounds and their antimicrobial susceptibility patterns in patients admitted to surgical wards at Teaching Hospital Jaffna. Proceedings of Jaffna Medical Association Annual Scientific Sessions 2019.
38. Thuvaragan S, Diviyagahage C.M, John Gnanakarunyan T, Srikaran R,  Formulation and evaluation of herbal antibacterial hand wash gel using essential oils of cinnamon (Cinnamomum zeylanicum) and lime (Citrus aurantifolia), CDDT – 2019, Bangalore, India
39. Gnanakarunyan, T.J.,  Noordeen, F., Thevanesam, V., Sooriyakumar, T., and Eriyagama, N.B. (2014). Usefulness of Polymerase Chain Reaction in the diagnosis of Typhoid fever, Proceedings of the Peradeniya University International Research Sessions Sri Lanka Vol.18

Research activities

Supervised nearly 65 undergraduate student research projects of BSc Hons Medical Laboratory Sciences students, BPharm Hons students and BSc Hons Nursing students and students from Open university of Sri Lanka.