A mediator-free whole-cell electrochemical biosensing system for sensitive assessment of heavy metal toxicity in water

• Published in: Water science and technology Vol. 79; no. 6; pp. 1071 - 1080
• Main Authors: Yang, Yuan, Fang, Zhen, Yu, Yang-Yang, Wang, Yan-Zhai, Naraginti, Saraschandra, Yong, Yang-Chun
• Format: Journal Article
• Language: English
• Published: England IWA Publishing 15.03.2019
• Subjects: Bacteria; Biosensing Techniques; Biosensors; Copper; Electrical measurement; Electrochemistry; Electrodes; Environmental Monitoring - methods; Feasibility studies; Heavy metals; Incubation period; Metabolism; Metals; Metals, Heavy - analysis; Metals, Heavy - toxicity; Microorganisms; Reduction (metal working); Signal transduction; Starvation; Toxicity; Water; Water analysis; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - toxicity; Water pollution; Water sampling; China

A bioelectrochemical sensing system (BES) based on electroactive bacteria (EAB) has been used as a new and promising tool for water toxicity assessment. However, most EAB can reduce heavy metals, which usually results in low toxicity response. Herein, a starvation pre-incubation strategy was develop...