Abstract
Microbial extracellular polymeric substances (EPS) excreted from microorganisms were a complex natural biological polymer mixture of proteins and polysaccharides, which played an important roles in the transport of metals, such as Ag(+). Electroactive bacteria, is an important class of environmental microorganisms, which can use iron or manganese mineral as terminal electron acceptors to generate energy for biosynthesis and cell maintenance. In this work, the EPS extracted of three electroactive bacteria (Shewanella oneidensis, Aeromonas hydrophila, and Pseudomonas putida) were used for reducing Ag(+) and forming silver nanoparticles (AgNPs). Results showed that all the three microbial EPS could reduce Ag(+) to AgNPs. The formed AgNPs were characterized in depth by the UV-visible spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy. The main components in the EPS from the three electroactive bacteria were analyzed. The presence of cytochrome c in these EPS was confirmed, and they were found to contribute to the reduction of Ag(+) to AgNPs. The results indicated that the EPS of electroactive bacteria could act as a reductant for AgNPs synthesis and could provide ...Continue Reading
References
Nov 1, 1990·Journal of Bacteriology·C R Myers, K H Nealson
Aug 1, 1973·Analytical Biochemistry·N Blumenkrantz, G Asboe-Hansen
Jun 12, 2003·FEMS Microbiology Letters·Cuong Anh PhamJongsik Chun
Mar 1, 2006·Journal of Inorganic Biochemistry·Andrew K UditHarry B Gray
Jun 9, 2009·Bioresource Technology·Nanqi RenDefeng Xing
Dec 23, 2010·Environmental Science & Technology·Shi-Jie YuanHan-Qing Yu
Jan 22, 2011·Environmental Microbiology·Bin CaoHaluk Beyenal
Jun 2, 2011·Environmental Science & Technology·Bin CaoHaluk Beyenal
Jul 24, 2012·ACS Nano·Yongguang YinGuibin Jiang
Aug 7, 2012·Letters in Applied Microbiology·J E HanS C Park
Sep 26, 2012·Colloids and Surfaces. B, Biointerfaces·G SathiyanarayananJoseph Selvin
Oct 31, 2012·Colloids and Surfaces. B, Biointerfaces·Sumaira AshrafIrshad Hussain
Nov 28, 2012·Biochemical Society Transactions·Liang ShiJames K Fredrickson
Feb 27, 2013·Scientific Reports·Shi-Jie YuanHan-Qing Yu
Dec 18, 2013·Environmental Science & Technology·Fuxing KangDongqiang Zhu
Jan 25, 2014·Advances in Colloid and Interface Science·Utkarsha ShedbalkarB A Chopade
Mar 29, 2014·Biofouling·Laura CastroAntonio Ballester
May 9, 2015·Applied Microbiology and Biotechnology·Richa SinghBalu A Chopade
Citations
Apr 22, 2017·Angewandte Chemie·Serhii I VasylevskyiMichael Füeg
Apr 26, 2017·Critical Reviews in Microbiology·Ganesan SathiyanarayananYung-Hun Yang
Feb 14, 2017·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Kengo IshikiTsutomu Nagaoka
Jan 4, 2017·Journal of Hazardous Materials·Joyabrata MalPiet N L Lens
Nov 21, 2020·Applied Biochemistry and Biotechnology·Joyabrata MalPiet N L Lens
Feb 3, 2021·Folia Microbiologica·Ranjana BhatiaGavin Sethi
Apr 29, 2021·Journal of Nanobiotechnology·Long ZouYunhong Huang
May 4, 2020·The Science of the Total Environment·Bin DongRuofei Jin
Sep 9, 2021·Applied and Environmental Microbiology·Vishnu D RajputJonathan R Lloyd