His research is in the area of greener routes to the synthesis and processing of polymeric materials. Dr. Nagarajan has developed ‘benign’ enzymatic/biomimetic routes for synthesizing electrically conducting & photoresponsive polymers. Dr. Nagarajan also has extensive experience in molecularly integrated hybrid nanomaterials and in incorporating electro-active/ photo-responsive polymers into bio-based materials (such as DNA, enzymes/proteins) to create novel responsive hybrid materials. More recently he has also investigated the enzymatic modification of ‘Green tea catechins’ for the design of novel therapeutic materials (anticancer applications).