GREEN SYNTHESIS OF SILVER NANO PARTICLES: A REVIEW

Textile Technology

In recent days, green synthesis has become most efficient method for synthesis of silver nanoparticles(NP) using biological extract. Biological extract is obtained from plants, animals, insects and microorganisms. In this method, bio extracts are used as reducing agent and capping agent for synthesis of silver nanoparticles. Variation in the size and shape of the Ag-NPs plays a vital role in the antibacterial effect. The synthesis can also be done by using chemical process but the residues of this process will be harmful to the nature. The important drawback of chemical synthesis is that they use toxic substances which cause stakes to the environment. The cost to carry over the process is extremely high. The result exhibits by chemical synthesis is not effective. Green synthesis is an eco-friendly process and the result will be very much effective. They have good stability, precise dimensions and uses non-toxic safe reagents. This method is friendly in both economical and environmental phase. In this article, published information on the synthesis of Ag-NPs, properties, testing methods and its antibacterial efficacy has been summarized as review.

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