Drug delivery nanosystems-an introduction

Nanosystems mainly help in safe delivery of drug molecules to the target site, by minimizing the side effects. A wide range of drugs, genes, and other therapeutic molecules can be loaded onto the nanosystems, targeting various sites of action and various diseases. The use of nanosystems has facilitated the growth of drug delivery systems with multimodal functionality, which involve a combination of therapeutic molecules, therapy techniques or site of action, etc. This short review is aimed at giving a brief introduction to the different forms of nanosystems, their classification, and their future scope when applied for drug delivery systems aimed at treating cancer and other diseases.