An overview of methods for biosynthesis of gold nanoparticles

Mohammad Saki,1,*

1. Department of nursing, Islamic Azad university doroud branch



In this paper, the production of nanoparticles of gold as important particles in the field of treatment and drug delivery, its size and its properties by biosynthesis and its comparison with other methods have been investigated.


Plant parts used for biosynthesis of gold nanoparticles are first washed with distilled water and then chopped into small pieces. then, the extract is boiled in distilled water and purified by various methods such as filtration or centrifugation. then the extract is simply mixed with gold salt and nanoparticles in a single-step process. there is no need to add a stabilizing agent because the existing chemicals are environmentally friendly (the form in plants also acts as a reducing agent as a stabilizing agent. finally, for purification, the nanoparticles can be separated by centrifugation and distilled off with water and collected and stored for future use.


In this paper, by presenting a new method for making nano nanoparticles by plant extracts and examining the effective parameters in determining their characteristics, an attempt has been made to study the biosynthetic method of gold nanoscale.


, the use of natural resources is essential, such as biological systems. biological synthesis of nanoparticles has several advantages over chemical and physical synthesis, such as a simple single-stage, environmentally friendly, suitable for medical applications. in addition, in nanoparticle biosynthesis, addition of any substance as a stabilizer is not necessary because the chemicals in plants act as reducing stabilizing agents themse


Gold nanoparticles, plant extract, biosynthesis, green chemistry.