Research Interest: Dr. Mohd Sajid Khan worked on natural and synthetic serine/cysteine/aspartic protease inhibitors, their inhibition kinetics, and thermodynamics.  He has also been involved in the synthesis of desired sized inorganic (such as gold, silver, selenium, and zinc) nanoparticles using different anticancer enzymes/proteins to use them as drug delivery systems to deliver FDA approved anticancer drugs such as Methotrexate, Cisplatin, Doxorubicin, and many more to different types of cancer cells. Further, these delivery systems are modified as theranostics. He has also been involved in the designing of anti-diabetic tri-peptides.