Author(s):

Priyanka Kashyap, Sonia Kaushal, Pooja Thakur and Poonam Shirkot

Abstract: Biological synthesis of nanoparticles has come out as fastly growing area of research in nanotechnology across the globe. This method is an alternate to the conventional methods such as physical and chemical approach. Microorganism and plant parts are used for the fabrication of nanoparticles but bacterial synthesis is gaining more importance over the plant and fungal synthesis of nanoparticles. In present study, samples were collected from the copper rich sites of Himachal Pradesh and Rajasthan for studying the bacterial diversity for synthesis of copper nanoparticles. Total 154 bacterial isolates were isolated using nutrient agar medium and characterized by using morphological and biochemical characters. All isolates were quantitatively screened by using 2mm copper sulphate and ability of synthesizing copper nanoparticles were primarily confirmed by colour change from light blue to greyish blue.

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