OICC Press International Journal of Nano Dimension 2228-5059 14 1 (January 2023) 2024 03 03 Quantum dots: Application in medical science 10.22034/ijnd.2022.1963190.2160 EN Sahajkumar Anilkumar Gandhi Department of Physics, Bhartiya Vidya Bhavans Shri Ishvarlal L. Pandya Arts-Sci. & J. Shah Comm. College, Dakor 388 225, Gujarat, India. 0000-0002-3650-3780 Pinkesh Gopalbhai Sutariya Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India. Heni Nipulkumar Soni Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India. 0000-0003-3548-3308 Divyesh Yashvantbhai Chaudhari Department of Physics, Bhartiya Vidya Bhavans Shri Ishvarlal L. Pandya Arts-Sci. & J. Shah Comm. College, Dakor 388 225, Gujarat, India. Journal Article 2024 03 03 Quantum Dots are a group of semiconductors nanomaterials whose size is about less than 10 nm exhibiting unique optical and electric properties which impart different advantages in terms of wide and continuous absorption spectra, narrow emission spectra, high quantum yield, long fluorescence lifetimes, and high photostability. Based on the unique properties of quantum dots have a variety of applications. This review informs about quantum dots structure, properties of quantum dots, surface modification of quantum dots for biocompatible, synthesis process and its important application like labeling cell structure and FRET (Fluorescence resonance energy transfer). Quantum dots as bio-sensors, bio-marker, and bio-imagine are used in many therapeutic systems. Several attractive applications have been observed with supramolecular compounds: Calix-4 arenes derivatives with quantum dots in the field of medical science.