Abstract

Carbon dots are given attention nowadays in various fields such as nanobiotechnology, nanomedicine, pharmaceutics and so on because of its submicron size and biocompatibility. Carbon dots (CDs) in the size range of several dozen nanometers are zerodimensional, carbon-based compounds and can be doped with heteroatoms such as N, S, P, and B. They can be modified chemically to boost and make additional functional properties possible. CDs have many inherent assets, such as high-photoluminescence and/or fluorescence tunable optoelectronic properties, strong biocompatibility and easy-to-prepare, tunable and post-moderate functional groups. Since it has these kinds of properties it can be used for biosensing, drug targeting, bioimaging especially it is used for cancer therapy. This review focuses on properties, various synthetic methods of preparation, and its merits, demerits of carbon dots and its therapeutic significance in treatment of cancer.