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Updated: Jul 19, 2026
Gold Nanoparticle Synthesis
Published on: July 10, 2021
Biosynthesis of gold nanoparticles using Pseudomonas aeruginosa
M I Husseiny1, M Abd El-Aziz, Y Badr
1Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.
Abstract:
Pseudomonas aeruginosa were used for extra-cellular biosynthesis of gold nanoparticles (Au NPs). Consequently, Au NPs were formed due to reduction of gold ion by bacterial cell supernatant of P. aeruginosa ATCC 90271, P. aeruginosa (2) and P. aeruginosa (1). The UV-vis and fluorescence spectra of the bacterial as well as chemical prepared Au NPs were recorded. Transmission electron microscopy (TEM) micrograph showed the formation of well-dispersed gold nanoparticles in the range of 15-30 nm. The process of reduction being extra-cellular and may lead to the development of an easy bioprocess for synthesis of Au NPs.
