His research interests include nano-optical biosensors, electrochemical biosensors, surface enhanced Raman spectroscopy, drug delivery vehicle design and transdermal drug delivery, micro and nanofluidics. Dr. Babu receive his Master of Science degree in Applied Chemistry, 1994 from Madurai Kamaraj University, Madurai, Tamil Nadu, India and Ph.D. in Materials Science in 2000 from University Malaya, Kuala Lumpur, Malaysia. Before joining Drexel University as Research Postdoctoral Associate in 1999, he worked as Visiting Scholar at the University of West Florida, Pensacola, Florida.