One of the most popular applications of nanotechnology in both topical and internal medicine administration to the body is nanogel technology. The materials comprising the nanoparticulate frameworks are less than 100 nm in a single measurement. The goal of this review paper is to provide a concise overview of the most recent developments in the nanogel medicine delivery framework with regard to drug loading and swelling. It categorises according to links (chemical and physical) and responding behaviour. This article is to give a broad overview of nanogels, their innovative use in many contexts, and current synthesis techniques. NGs use drugs for a variety of reasons, including diagnostics, gene targeting, organ targeting, and many more. Different pulmonary, nasal, transdermal, intra-ocular, oral, and parenteral routes can be used to give NGs. The primary goals of this review are to present broad details on NGs, their characteristics, multiple categories, medication targeting strategies, kinds of drug delivery systems, assessment techniques, and cutting-edge uses for NGs in depth.
Keywords: Nanogel, DLS, CD, mechanism of drug release, classification, application