Graphene has unique physical properties, and a variety of proof-of-concept devices based on graphene have been demonstrated. A prerequisite for the application of graphene is its production in a controlled manner because the number of graphene layers and the defects in these layers significantly influence transport properties. In this work, well dispersed Co nanoparticles (NPs) supported on the reduced graphene oxide (rGO) were synthesized by simple solution method. The synthesized nanocomposites were characterized using UV/Vis absorption spectroscopy and transmission electron microscopy (TEM) measurements. UV/Vis study revealed the formation of cobalt/ rGO nanocomposites with characteristics surface plasmon absorption maxima. From TEM analysis, it is observed that the nanocomposites have uniform size distribution. Antibacterial activity of Cobalt and rGO nanocomposites as a function of particle concentration against gram-negative bacterium Escherichia coli (E. coli) was carried out in solid growth media. The nanocomposites show good antibacterial activity against E. coli.

Facile synthesis of reduced graphene oxide layer supported cobalt nanoparticles and their antibacterial activity against E. coli

249th National Meeting (2015)

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