1. Rajagopal, T., P. Singam, S. Kulandaivel, S. Selvarani, S. Sevarkodiyone and P. Ponmanickam, 2019. The red weaver ant, Oecophylla smaragdina as vectors of bacteria in urban environments. Int. J. Entomol. Res., 4: 46-49.
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2. Rajagopal, T., P. Singam, S. Kulandaivel, S. Selvarani, S. Sevarkodiyone and P. Ponmanickam, 2019. Survey of red weaver ants (Oecophylla smaragdina) and their host plants in urban and rural habitats of Madurai District, Tamil Nadu, India. J. Entomol. Zool. Stud., 7: 938-943.
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3. Ramachandran, R., S. Achiraman, T. Rajagopal, D. Sankarganesh and S. Kamalakkannan et al., 2018. Localization of α 2u-globulin in the acinar cells of preputial gland, and confirmation of its binding with farnesol, a putative pheromone, in field rat (Millardia meltada). PLoS One, Vol. 13. 10.1371/journal. pone.0197287.
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4. Muthukumar, S., S. Muniasamy, M. Srinivasan, A. Ilangovan and S. Satheshkumar et al., 2018. Evaluation of pheromone‐based kit: A noninvasive approach of estrus detection in buffalo. Reprod. Domestic Anim., 53: 1466-1472.
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5. Dhivagar, S., C. Sabarinathan, T. Rajagopal and T. Arumuganathan, 2017. Vanadium pincer complex: Synthesis, characterization, catalysis and biological studies. J. Adv. Applied Scient. Res., 1: 7-15.
6. Rajagopal, T., A. Chinnathambi, P. Padmanabhan, B. Gulyas and G. Archunan, 2016. Inter-relationship of behaviour, faecal testosterone levels and glandular volatiles in determination of dominance in male Indian blackbuck. Indian J. Exp. Biol., 56: 781-794.
7. Rajagopal, T. and G. Archunan, 2016. Chemical Communication in Indian Blackbuck (Antelope cervicapra L) with Special Reference to Dominance. In: Chemical Signals in Vertebrates 13, Schulte, B.A. and T. Goodwin (Eds.). Chapter 16, Springer-Verlag International Publishing, Switzerland, ISBN: 978-3-319-22026-0, pp: 217-228.
8. Ponmanickam, P., S. Muniasamy, T. Rajagopal, R.L. Rengarajan and G. Archunan, 2016. Identification of GABAβ receptor protein and farnesol in the preputial gland of bandicoot rat (Bandicota indica). Adv. Zool. Bot., 4: 37-45.
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9. Jayachitra, G., P. Ponmanickam, J. Vijayakumar, S.P. Sevarkodiyone and T. Rajagopal, 2016. The effects of fenvalerate on production of pheromone, hormone and histopathological changes in endocrine glands of female albino rats. ANJAC J. Sci., 15: 61-74.
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10. Vijayalakshmi, M., G. Rameshkumar, T. Rajagopal, V. Thangapandian and P. Ponmanickam, 2015. Phytofabrication of silver nanoparticles using horse gram (Dolichos biflorus L.) seed extract and assessment of its bactericidal and antioxidant activities. Thai J. Pharm. Sci., 39: 149-155.
11. Vaishnavi, B., G. Rameshkumar, T. Rajagopal and P. Ponmanickam, 2015. Evaluation of bactericidal and fungicidal properties of silver nanoparticles fabricated using Jasminum sambac (L.). Global J. Biotechnol. Biochem., 10: 22-31.
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12. Rajagopal, T., R. Rajkumar, P. Ponmanickam, S. Achiraman, P. Padmanabhan and G. Archunan, 2015. Identification of pheromone-carrying protein in the preorbital gland post in the endangered Indian male Blackbuck Antelope cervicapra L. Indian J. Exp. Biol., 53: 771-778.
13. Rajagopal, T., I.A.A. Jemimah, P. Ponmanickam and M. Ayyanar, 2015. Synthesis of silver nanoparticles using Catharanthus roseus root extract and its larvicidal effects. J. Environ. Biol., 36: 1283-1289.
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14. Saranya, S., S. Shekinah, T. Rajagopal, J. Vijayakumar and P. Ponmanickam, 2014. Isolation and Characterization of cholesterol degrading bacteria from soap and vegetable oil industrial waste. Indian J. Biotechnol., 13: 508-513.
15. Raji, S., M. Ayyanar, P. Ponmanickam and T. Rajagopal, 2014. In vitro morphogenesis and RAPD analysis of Justicia tranquebariensis Lf-an important medicinal plant. Asia Pac. J. Mol. Biol. Biotechnol., 22: 152-163.
16. Rajagopal, T., G. Archunan, M. Surulinathi and P. Ponmanickam, 2013. Research output in pheromone biology: A case study of India. Scientometrics, 94: 711-719.
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17. Priya, G.L., P. Rameshkumar, P. Ponmanickam, R. Eswaran, D.N.P. Sudarmani and T. Rajagopal, 2013. Identification of volatile and protein profiles in the sting and mandibular glands of the worker honey bee (Apis cerana indica). Biochem. Physiol., Vol. 2. 10.4172/2168-9652.1000108.
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18. Ponmanickam, P., S. Muniasamy, K.P. Tharshini, R.L. Rengarajan, T. Rajagopal and G. Archunan, 2013. Protein and volatile profiles of mouse (Mus musculus) vaginal mucus across the oestrous cycle. World J. Zool., 8: 67-74.
19. Elavarasi, K., S. Ranjini, T. Rajagopal, G. Rameshkumar and P. Ponmanickam, 2013. Bactericidal proteins of skin mucus and skin extracts from fresh water fishes, Clarias batrachus and Tilapia mossambicus. Thai J. Pharm. Sci., 37: 194-200.
20. Archunan, G. and T. Rajagopal, 2013. Detection of estrus in Indian blackbuck: Behavioural, hormonal and urinary volatiles evaluation. Gen. Comp. Endocrinol., 181: 156-166.
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21. Rajagopal, T., M. Sekar, A. Manimozhi, N. Baskar and G. Archunan, 2011. Diversity and community structure of butterfly of Arignar Anna Zoological Park, Chennai, Tamil Nadu. J. Environ. Biol., 32: 201-207.
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22. Rajagopal, T., G. Archunan and M. Sekar, 2011. Impact of zoo visitors on the fecal cortisol and the behaviour of an endangered species, Indian Blackbuck (Antelope cervicapra L.). J. Applied Anim. Welfare Sci., 14: 18-32.
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23. Rajagopal, T., A. Manimozhi and G. Archunan, 2011. Diurnal variation in preorbital gland scent marking behaviour of captive male Indian Blackbuck (Antelope cervicapra L.) and its territorial significance. Biol. Rhythm Res., 42: 27-38.
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24. Rajagopal, T. and G. Archunan, 2011. Histomorphology of preorbital gland in territorial and non-territorial male blackbuck Antelope cervicapra, a critically endangered species. Biologia, 66: 370-378.
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25. Achiraman, S., G. Archunan, D. Sankarganesh, T. Rajagopal and R.L. Rengarajan et al., 2011. Biochemical analysis of female mice urine with reference to endocrine function: A key tool for estrus detection. Zool. Sci., 28: 600-605.
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26. Rajagopal, T., T. Thangamani and G. Archunan, 2010. Comparison of physico-chemical parameters and phytoplankton species diversity of two perennial ponds in Sattur area, Tamil Nadu. J. Environ. Biol., 31: 787-794.
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27. Rajagopal, T., C. Balasundaram, P. Geraldine and G. Archunan, 2010. Assessment of dominance hierarchy through urine scent marking and its chemical constituents in male blackbuck Antelope cervicapra, a critically endangered species. Behav. Process., 85: 58-67.
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28. Rajagopal, T., A. Thangamani, S.P. Sevarkodiyone, M. Sekar and G. Archunan, 2010. Zooplankton diversity and physico-chemical conditions in three perennial ponds of Virudhunagar district, Tamilnadu. J. Environ. Biol., 31: 265-272.
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29. Sekar, M., T. Rajagopal and G. Archunan, 2008. Influence of zoo visitor presence on the behaviour of captive Indian gaur (Bos gaurus gaurus) in zoological park, Chennai. J. Applied Anim. Welfare Sci., 11: 352-357.
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30. Rajagopal, T. and G. Archunan, 2008. Scent Marking by Indian Blackbuck: Characteristics and Spatial Distribution of Urine, Pellet, Preorbital and Interdigital Gland Marking in Captivity. In: Biodiversity and Wildlife Conservation, Reddy, M.V. (Ed.). Chapter 8, Daya Publishing House, New Delhi, India, pp: 71-80.
31. Ponmanickam, P., T. Rajagopal, M.K. Rajan, S. Achiraman and K. Palanivelu, 2007. Assessment of drinking water quality of Vembakottai reservoir, Virudhunagar district, Tamil Nadu. J. Exp. Zool., 10: 485-488.
32. Ponmanickam, P., T. Rajagopal and M.K. Rajan, 2007. Density and relative abundance of macroinvertebrates in Vembakottai reservoir, Virudhunagar district, Tamil Nadu. Bionotes, 9: 83-84.
33. Rajagopal, T., S.P. Sevarkodiyone and G. Archunan, 2006. Diversity of social insects in Sattur town, Virudhunagar district, Tamil Nadu. Insect Environ., 12: 90-92.
34. Rajagopal, T., A. Thangamani, G. Archunan and A. Manimozhi, 2006. Studies on diurnal variation certain physico-chemical parameters and zooplankton components of Chinnapperkovil pond in Sattur. J. Nat. Conserv., 18: 97-105.
35. Ponmanickam, P., T. Rajagopal and M.K. Rajan, 2006. Diversity of birds of the Vembakottai reservoir, Virudhunagar district, Tamil Nadu. Bionotes, 8: 65-66.
36. Rajagopal, T., S.P. Sevarkodiyone and M. Sekar, 2005. Ant species richness, diversity and similarity index at five selected localities of Sattur Taluk. Indian J. Environ. Educ., 5: 7-12.
37. Rajagopal, T., S.P. Sevarkodiyone and A. Manimozhi, 2005. Ant diversity in some selected localities of Sattur Taluk, Virudhunagar district, Tamil Nadu. Zoos Print J., 20: 1887-1888.
38. Rajagopal, T., A. Thangamani and M. Sekar, 2005. Diversity of molluscan community in a perennial pond in Vithudhunagar district, Tamil Nadu. Bionotes, 7: 88-89.
39. Rajagopal, T., A. Thangamani and S. Baskaran, 2002. Density and relative abundance of insect in a pond in Tamil Nadu. Bionotes, 4: 71-72.