Progressions in nanotechnology have empowered analyst to create and blend different nanomaterial with unmistakable properties, making them ideal for various biomedical purposes. Metal oxide nanoparticles (MONPs) certainly stand out because of their uncommon attributes, which are notably not the same as those of their mass counterparts. Recognizing the meaning of metal oxide nanoparticles as key mechanical materials, the writers present a broad survey of examination on these nanoparticles, including their synthetic techniques, nanoscale physicochemical properties, and explicit modern applications inside applied nanotechnology. This review looks at recent researches on the synthesis of metal oxide nanoparticles and their viability in removal of dyes from aqueous solutions. Keywords: Biomedical applications, Metal oxide nanoparticles, Nanotechnology, Physicochemical properties.