TY - JOUR
T1 - Reactive oxygen species (ROS) generated by cyanobacteria act as an electron acceptor in the biocathode of a bio-electrochemical system
AU - Cai, Pei-Jie
AU - Xiao, Xiang
AU - He, Yan-Rong
AU - Li, Wen-Wei
AU - Zang, Guo-Long
AU - Sheng, Guo-Ping
AU - Hon-Wah Lam, Michael
AU - Yu, Lei
AU - Yu, Han-Qing
PY - 2013/1/15
Y1 - 2013/1/15
N2 - The enhanced electricity generation in a biocathode bio-electrochemical system (BES) with Microcystis aeruginosa IPP as the cathodic microorganism under illumination is investigated. The results show that this cyanobacterium is able to act as a potential cathodic microorganism under illumination. In addition, M. aeruginosa IPP is found to produce reactive oxygen species (ROS) in its growth in the BES. ROS, as more competitive electron acceptors than oxygen, are utilized prior to oxygen. The BES current is substantially reduced when the ROS production is inhibited by mannitol, indicating that the ROS secreted by the cyanobacterium play an important role in the electricity generation of such a biocathode BES. This work demonstrates that the ROS released by cyanobacteria benefit for an enhanced electricity generation of BES. © 2012 Elsevier B.V..
AB - The enhanced electricity generation in a biocathode bio-electrochemical system (BES) with Microcystis aeruginosa IPP as the cathodic microorganism under illumination is investigated. The results show that this cyanobacterium is able to act as a potential cathodic microorganism under illumination. In addition, M. aeruginosa IPP is found to produce reactive oxygen species (ROS) in its growth in the BES. ROS, as more competitive electron acceptors than oxygen, are utilized prior to oxygen. The BES current is substantially reduced when the ROS production is inhibited by mannitol, indicating that the ROS secreted by the cyanobacterium play an important role in the electricity generation of such a biocathode BES. This work demonstrates that the ROS released by cyanobacteria benefit for an enhanced electricity generation of BES. © 2012 Elsevier B.V..
KW - Bio-electrochemical system (BES)
KW - Biocathode
KW - Cyanobacteria
KW - Electron acceptor
KW - Mehler reaction
KW - Reactive oxygen species (ROS)
UR - http://www.scopus.com/inward/record.url?scp=84865719709&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84865719709&origin=recordpage
U2 - 10.1016/j.bios.2012.06.058
DO - 10.1016/j.bios.2012.06.058
M3 - RGC 21 - Publication in refereed journal
C2 - 22819632
SN - 0956-5663
VL - 39
SP - 306
EP - 310
JO - Biosensors and Bioelectronics
JF - Biosensors and Bioelectronics
IS - 1
ER -