Green synthesis of metal nanoparticles: A Review

Abstract

Nanoparticles have unique properties due to their small size and large surface area, leading to various applications in medicine, electronics, and environmental science. Traditional synthesis methods often involve harmful chemicals and high energy requirements. Green synthesis offers a sustainable and eco-friendly alternative. Metal nanoparticles are categorized based on size, shape, and properties, with gold nanoparticles, silver nanoparticles, zinc oxide nanoparticles and copper nanoparticles. Plant extracts rich in biomolecules like polyphenols and flavonoids act as reducing agents for gold ions, resulting in varying properties and potential applications. This review provides an overview of green synthesis of various metal nanoparticles.