Living Electrodes: A New Trend in Electronics
Water purification, bioelectronics, biosensors, harvesting and storage of energy in fuel cells-these are just some of the methods used in using bacteria to convert chemical energy to electrical energy. These processes are often environmentally sensitive, and one major problem is the heavy use of water in these processes. Fortunately, researchers from Linkoping University and Lawrence Berkeley National University have developed a method in which they embed Shewanella oneidensis, an electroactive bacterium, into a conducting polymer on a substrate of carbon felt.
The output is called MCBF, Multilayer Conductive Bacterial-Composite Film. Gabor Mehes, a researcher from Linkoping University has stated the device was able to increase the flow of electrons in the circuit, and in using the film as an anode, the positive part of the component, in microbial electromechanical cells, the current became 20 times higher than using unmodified anodes.
This type of technology has been called by the researchers as “The Living Electrode.” The device is expected to be versatile and adaptable for developing new inventions regarding bioelectronic technologies and therapies.
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