 In this study, researchers developed a novel, low-cost, and eco-friendly nanocomposite coating using BioZNO and CUOZNO-NPs for application in surface coatings. The nanocomposite coating showed excellent performance in terms of corrosion resistance, scratch hardness, gloss, specific gravity, and chemical resistance. The nanocomposite coating also demonstrated good adhesion properties and could be used in a variety of applications. This article was authored by Roma GL Fidel, Holla Emery Fat, H. Hubd El Wahob, and others.