ABSTRACT
In recent years, nanotechnology has gained more attention due to its usage in a wide range of applications, including agriculture, food, environment, biomedical, and pharmaceutical industries. The conventional nanoparticles raised toxicity issues in biomedical applications due to the involvement of toxic chemicals in the synthesis process. Therefore, there is a huge need to develop a toxic-material-free nanoparticle synthesis approach. Metallic nanoparticles (gold, silver, copper, iron, and palladium) have received much interest in therapeutic (drug delivery system for cancer, cardiovascular disease, diabetic mellitus, and biosensors) and environmental applications (dye degradation and bioremediation of toxic chemicals in the environment). In this context, this chapter will cover the role of biogenically synthesized metal and metal oxide NPs in drug delivery, disease diagnosis, and various biosensors. A detailed literature on the applications of polymer-based metal and metal oxide nanoparticles in various drug delivery approaches will be covered.
