For the past five years he is actively working in the area of application of Nanotechnology in Medicine and Nanotoxicology. His laboratory has developed nanoparticle based oral gene delivery system and nanoadjuvant for developing single shot booster free vaccine, nano-formulation for oral Amphotericin B, combined chemo and phtothermal therapy for superficial bladder cancer, study of long term fate and toxicity of gold nanoparticle, novel antioxident collagen nanoparticle for cosmecuticals and wound healing. He is actively involved in collaborative groups for developing marketable dermal supplement, genetically engineered human serum albumin, extracellular matrix spray as a first aid device for superficial wound and burn.
He has published more than 370 articles in indexed journal, edited 4 books, written 14 chapters in books and filed 10 patents. He is President of Indian Society of Renal & Transplant Pathology, Founder Secretary of Indian Society of Nanomedicine, Ex Vice President of Electron Microscopy Society of India and Ex-Vice President of Society of Tissue Engineering & Regenerative Medicine (India). He is an assessor for NABL (Laboratory Accreditation), GLP (Good Laboratory Practice) & GCP (Good Clinical Practice) systems. He is an active member of several scientific, advisory and policy making committees of Government of India. He worked as a Visiting Professor in Molecular Nephrology at Long Island Jews Medical Center & Albert Einstein Medical College, New York, USA and Dept. of Biomedical Engineering at University of New South Wales, Sydney, Australia. He is a member of Executive committee of Global Council of Regulatory Science Research and adjunct professor at Deakin University Australia.He is Chief Coordinator of the bioincubator at AIIMS Delhi, Center for Medical Innovation & Entrepreneurship (CMIE).