Sub-toxic concentrations of volatile organic compounds inhibit extracellular respiration of Escherichia coli cells grown in anodic bioelectrochemical systems

Understanding the Properties of Phenazine Mediators that Promote Extracellular Electron Transfer in Escherichia coli

“…Previous studies have shown the use of thionine, 2-hydroxy-1,4-naphthoquinone (HNQ), and neutral red as exogenous electron mediators for E. coli-based bioelectrochemical systems. 17,19,[36][37][38] However, detailed information on EET in E. coli with electrode surfaces and its interaction with redox mediators remains unclear. Thus, understanding the properties of mediator systems that facilitate efficient EET from E. coli to anodes provides a means for a unique cell design in genetically engineering E. coli for (1) improving the performance of microbial-based bioelectrochemical z E-mail: minteer@chem.utah.edu systems, (2) metabolizing new substrates for bioremediation, and (3) the synthesis of value-added products.…”

Microbial Fuel Cells, Concept, and Applications

“…A miniaturised electrochemical toxicity biosensor based on graphene oxide quantum dots/carboxylated carbon nanotubes was also used as a "shock sensor" for evaluating the toxicity of Cd, Hg, Pb, 2,4-dinitrophenol, 2,4,6-trichlorophenol, and pentachlorophenol (Zhu et al 2017). Biosensors using electroactive biofilm were also used for assessing the toxicity of different volatile organic compounds (VOCs) (Santoro et al 2016c;Kannan et al 2019).…”

Bioelectrochemical Systems as a Multipurpose Biosensing Tool: Present Perspective and Future Outlook

“…Accordingly, recent efforts have been focused on decreasing the contamination of the RE, as described below for the works of Li et al. and Santoro et al . Another important aspect to be considered is the response time of the biosensor.…”

“…Santoro et al. developed a 126 mL M3C, in which the RE was placed in a millimeter‐sized glass tube, serving as a salt bridge to avoid biofouling . The M3C was tested for toluene and n ‐cyclohexyl‐pyrrolidone.…”