Abstract: Nanoparticles are microscopic materials with unique physical and chemical characteristics due to their size, structure, biocompatibility, and large surface area, which have led to their widespread use in catalysis, medicinal applications, and other fields. Silica nanoparticles are the most stable of all the nanoparticles, are less poisonous, and can work with a wide range of chemicals and polymers. Because of their unique features and wide range of uses, silica-coated nanostructures pique researchers' curiosity. We provide a basic overview of the major uses of silica nanoparticles, as well as the developing applications of silica-coated metal nanoparticles, in this relevant study.

Keywords: Biocompatibility, Nonporous silica nanoparticles; Drug delivery; Gene delivery, silica coating

| DOI: 10.17148/IARJSET.2022.9332