eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2017-06-28 14 2 817 820 10.13005/bbra/2513 24448 article Roya Rashidi 1 Hamid Reza Ghorbani 1 Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran. The present and fast-growing demands of the synthesis of nanoparticles with various areas suchas medicine and energy, catalysis, electronics and chemistry increased day to day. In the pastdecade, nanoparticles are prepared from wet chemical method, where chemicals used are quietflammable and often toxic. In this report, we are going to synthesize gold nanowires from bacterium Pseudomonas aeruginosa. Gold nanowires were synthesized through the reduction of aqueous Au³⁺ ion using the growth culture supernatants. Gold nanowires were formed within 1 h of gold ion coming in contact with the cell filtrate. The synthesized gold nanowires were characterized from TEM, UV-Vis and DLS.An absorption peak at 550 nm in Uv–Vis spectrophotometer was detected indicating the presence of gold nanowires. The DLS analysis showed gold nanowires with size of 90±15 nm. https://www.biotech-asia.org/vol14no2/biological-synthesis-of-gold-nanowires-by-pseudomonas-aeruginosa/ Gold; Nanowires; Pseudomonas aeruginosa