Abstract
The antimicrobial effects of silver salts have been noticed and applied since antiquity. The effectiveness of silver particles gets enhanced when used in nanosize dimensions. Silver nanoparticles are synthesised by physical, chemical and biological methods. Biological sources, such as bacteria, actinomycetes, fungi, and plants are usually favoured due to cost effectiveness, easy to scale up, easy availability of raw materials and environmental friendly nature. Moreover, plants contain various phytochemicals and compounds which may act both as reducing and stabilising agents in the synthesis of nanoparticles. The silver nanoparticles thus produced are more stable. Various plant extract derived silver nanoparticles have been scrutinised for their potent antimicrobial and anti-inflammatory properties which help them find applications in the medical domain. Moreover, they are being extensively used in agriculture, biotechnology, bio imaging, nano fabrics, electronics, bio-engineering, drug delivery, etc.
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