Hamid Reza Ghorbani¹*, Hosein Attar², Saeid Soltani³

¹Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr (Iran) ²Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran (Iran) ³Department of Biology, Qaemshahr Branch, Islamic Azad University, Qaemshahr (Iran) *Corresponding author, E.mail: hamidghorbani6@gmail.com

ABSTRACT

The Ag-Cu bimetallic colloidal nanoparticles were prepared by an environmentally friendly method. We used to synthesize Ag-Cu alloy nanoparticles from the culture supernatant of E. coli. Aqueous solutions of Cu2+ and Ag+ ions were mixed with the culture supernatant for the formation of Ag–Cu alloy nanoparticles. The alloy nanoparticles were characterized by dynamic light scattering (DLS) UV–Vis spectroscopy and transmission electron microscopy (TEM). The size of Ag-Cu alloy nanoparticles, analyzed by dynamic light scattering method, were determined to be about 45 nm.

Key words : Ag-Cu alloy, Escherichia coli, Synthesis, Nanoparticles

Download FullText