1. Introduction to nanosensors 2. Immobilization techniques of nanomaterials 3. Mechanism effect of nanomaterials on the structure4. Optical nanosensors for pharmaceutical detection5. Chemical nanosensors in pharmaceutical analysis6. Noble metal nanoparticles in electrochemical analysis of drugs7. Photo-electrochemical nanosensors for drug analysis 8. Molecularly imprinted polymer based nanosensors for pharmaceutical analysis 9. Nanomaterials for drug delivery systems 10. Nanomaterials enriched nucleic acid based biosensors 11. Nanosensors in biomarker 12. Nanomaterials-based enzyme biosensors for electrochemical applications: Recent trends and future prospects