Plant Extract Mediated Ecological Synthesis of Encapsulated Copper and Silver Nanoparticles for Biological Application

Abstract

Since the world is becoming health and environment conscious so it has become a necessity to newlinedesign and to create such a strategy which inculcates benefits for the environment and the health newlinesector. So, keeping this all-in mind, Green methodology has been followed for the formulation of newlinesilver and copper nanoparticles followed by their encapsulation with polymer chitosan. newlineNanoparticles (NPs) are often synthesized using physical and chemical methods. These methods, newlineon the other hand, guzzle a lot of energy and need the use of harmful chemicals. As a result, newlineresearchers are now captivated by a recently discovered green approach to NP synthesis, which newlineprovides an eco-friendly, cost-effective, and quick process. Considering this in mind copper and newlinesilver nanocomposites have been formed along with their encapsulation with a suitable newlinebiopolymer Chitosan. In the proposed work biological method for the synthesis of NPs has been newlinechosen. The NPs shape, size and structure differs with these parameters, subsequently, selection newlineof plant plays a crucial role. Duchesnea indica (sometimes called Potentilla indica), known newlinecommonly by the name s mock strawberry, Indian strawberry, or false strawberry and Potentilla newlineastrosanguinea (Dark Crimson Cinquefoil are the two plants selected for the formulation of newlinecopper and silver nanocomposoites. These nanocomposites have been characterized by various newlineanalytical and spectroscopic techniques such as XRD, FTIR, TEM, EDX and UV-Visible newlinespectroscopy. A result revealed that synthesized nanoparticles are nearly spherical in shape, with newlineaverage size range from 2-30 nm and was gathered by face centered cubic (FCC) structure newlinethrough the polymer matrix. The synthesized nanocomposites have shown excellent newlineantimicrobial, and antioxidant activities. The antimicrobial studies revealed of these newlinenanocomposites were tested against pathogenic bacteria like Staphylococcus aureus, Klebsiella newlinepneumonia and Escherichia coli. The antifungal activities of these nanoparticles were tested newlineagainst fungal species.