title: Toxicity detection in water containing heavy metal ions with a self-powered microbial fuel cell-based biosensor.
abstract: In this work, a self-powered microbial fuel cell (MFC)-based biosensor was developed for detecting toxicity in water containing heavy metal ions. Experimental conditions containing concentration of potassium ferricyanide, load resistor and glucose concentration were optimized. Six heavy metal ions (2mg/L, Cu2+, Hg2+, Zn2+, Cd2+, Pb2+and Cr3+) were tested by this biosensor and the inhibition ratios obtained were 12.56%, 13.99%, 8.81%, 9.29%, 5.59% and 1.95%, respectively. The inhibition ratios of 28.13% was also obtained for detecting the laboratory wastewater containing several heavy metal ions. The experimental results exhibited the feasibility and potential of the self-powered biosensor in detecting toxicities in water containing heavy metal ions.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China.
authors.forename: Dengbin
authors.initials: D
authors.lastname: Yu
authors.affiliation: School of Chemical and Environmental Engineering, North University of China, Taiyuan 030051, PR China.
authors.forename: Lu
authors.initials: L
authors.lastname: Bai
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Zhai
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China.
authors.forename: Yizhe
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China. Electronic address: dongsj@ciac.ac.cn.
authors.forename: Shaojun
authors.initials: S
authors.lastname: Dong
mesh_terms: D001674:Bioelectric Energy Sources / Q000382:microbiology*; D015374:Biosensing Techniques / Q000379:methods*; D019216:Metals, Heavy / Q000633:toxicity*; D018675:Toxicity Tests / Q000379:methods*; D062065:Wastewater / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D062065:Wastewater
keywords: Biosensor; Inhibition of bioactivity; Microbial fuel cell (MFC); Self-powered; Toxicity