Biosynthesis and Characterization of Copper Nanoparticles Using Shewanella oneidensis: Application for Click Chemistry

A novel green biosynthesis route for the production of functional copper nanoparticles (Cu‐NPs) using a metal‐reducing bacterium is reported. Detailed characterization reveals well‐dispersed Cu(0) nanoparticles with a thin, stable Cu 2 O surface layer. The catalytic activity of the biogenic Cu‐NPs is demonstrated for a range of “click chemistry” azide‐alkyne cycloaddition reactions, and the commercial potential of this approach discussed.