Green synthesis of nanoparticles using plant extracts has become a sustainable and effective alternative to traditional chemical and physical methods. This review focuses on the use of Azadirachta indica (neem) extract, which contains bioactive compounds that act as natural reducing and stabilizing agents.

The paper discusses the synthesis of different nanoparticles such as silver, gold, copper, zinc oxide, and magnesium oxide. It also highlights their key properties, including controlled particle size (usually 10–80 nm), good stability, and useful optical features.