Capturing bacteria that eat and breathe electricity

Science Daily  March 5, 2019 A team of researchers in the US (Washington State University, Montana State University) developed a battery-operated potentiostat that is capable of controlling the potential of a working electrode and can be deployed and operated remotely, allowing the enrichment of electrochemically active microorganisms on electrodes in their native environment. The device was tested in four alkaline hot springs with a temperature ranging from 45 οC to 91 οC and a relatively constant pH of 8.5–8.7. Analysis showed a change in microbial community structure after 32 days of polarization. The impact of polarization was most substantial on […]