Metal Nanoparticles

Metal nanoparticles are small, submicron-sized objects formed of pure metals or their compounds, such as gold, platinum, silver, titanium, zinc, cerium, iron, and thallium e.g., oxides, hydroxides, sulfides, phosphates, fluorides, and chlorides. Living cells are poisoned by metal NPs. Living cells are poisoned by metal NPs. Thus, it is dangerous to create and employ metal NPs in powder form. Furthermore, it is challenging to extract precious metal NPs from liquids or after catalysis. These factors make the encapsulation of these highly reactive metal NPs in host films a promising solution to this issue. In addition, the creation of host films with metal nanoparticles integrated into them is a rapidly expanding subject due to its many uses and recyclable nature in areas including catalysis, sensors, optics, electronics, functional and protective coatings, etc. The technical significance and simple, cost-effective synthetic techniques covered in this chapter can be utilised to further investigate multimetallic nanoparticles NPs and multimatrix combinations for a variety of possible applications. The extension of laboratory-scale synthesis processes and industrial-scale use of metal NPs in hosts should be the focus of future study.