Dr. A. Thamilselvan is an Associate Professor in the Department of Chemistry, School of Sciences and Humanities, SR University, Warangal, India. He has over 11 years of research experience in electrochemistry, electrochemical biosensors, photoelectrocatalysis, and nanozymes. He received his Ph.D. in Electrochemical Desalination (Capacitive Deionization) from Karunya University, Tamil Nadu, in 2017. He subsequently served as a DST-National Postdoctoral Fellow (DST-NPDF) at CSIR–Central Electrochemical Research Institute (CSIR-CECRI), India, pursued postdoctoral research at National Tsing Hua University, Taiwan, and worked as a Research Professor at Gachon University Global Campus, South Korea. His research focuses on advanced electrochemical biosensors, photoelectrochemical systems for environmental remediation and water splitting, nanozyme-based healthcare applications, and sustainable energy storage technologies. He has published more than 35 research articles in reputed international journals and received the DST-NPDF fellowship. His teaching interests include analytical chemistry, biochemistry, nanotechnology, and computational chemistry.