S. Rajeshkumar is an Associate Professor at the Department of Pharmacology at the Saveetha Institute of Medical and Technical Sciences, India. His research interests are green synthesis of silver, gold, zinc oxide, cadmium sulfide, zinc sulfide, titanium di oxide, copper sulfide, copper oxide, chitosan and silica nanoparticles and polymer coated metal nanocomposites. He is also researching applications of nanoparticles and nanocomposites on agricultural and biomedical applications (antimicrobial, anticancer, antioxidant, anti-inflammatory, antidiabetic etc.)