Scientists developed better electrochemical systems composed of organic materials and bacteria
Better organic electrodes with bacteria - science news in brief - technology

Electrochemical systems containing bacteria have been described before, but in practice, they are difficult to use because of their large size. To improve them, miniaturization is necessary. Now, scientists developed a new technique to create fine organic electrodes of up to 80 micrometers thick.

The researchers used an electrically conducting polymer (PEDOT:PSS) and the electroactive bacterium Shewanella oneidensis to obtain the new electrodes. When the resulting system is used as the anode in microbial electrochemical cells, the current was 20 times higher compared to using regular anodes.

The discovery has several applications from water purification to biosensors. Moreover, electrical systems based on bacteria represent an environmentally friendly mean to convert chemical energy to electricity.

Read the full story: Linkoping University
Scientific publication: Scientific Reports