Long-lasting food freshness in packaging materials is a highly desirable quality. Incorporating nanoscale fillers into the polymer matrix has the latent to mend the functional properties of the packaging material and may address certain problems. The melting point and glass transition temperatures of polymers containing nanocomposites are altered, along with their surface wettability, hydrophobicity, and improved barrier. Additionally, inorganic nanoparticles may assist to slow down the proliferation of germs within the packing. By using nano-sized components in biopolymer-based packaging materials, waste spawned during the packing procedure might be minimized. In food packaging, inorganic nanoparticles such as titanium oxide, zinc oxide, copper oxide, silver, and gold are most commonly used. These packaging materials may improve the physicochemical and functional characteristics of food systems. Researchers are investigating a number of applications for metals and metal oxide nanoparticles in food films in an attempt to enhance food packaging films and may prolong the shelf life of food itens.