Scientists have created a biofilm of bacteria that can feed long-lasting electronics from human sweat

Scientists have created a biofilm of bacteria that can feed long-lasting electronics from human swea

Researchers from the University of Massachusetts in Amherst reported the development of a truly clean power source based on bacteria and working from human sweat.

," reported Xiaomeng Liu, graduate of UMasse Amherst College of Engineering Electrical Engineering and Computer Engineering, and lead author of the article.

The present biofilm is a thin leaf of bacterial cells that is thick with a piece of paper. It is produced naturally by a modified version of the Geobacter sulfurreducens bacteria. Bacteria G. sulfurreducens produce electricity and have previously been used to power electrical devices. The disadvantage of previous methods was that living bacteria needed to feed by feeding a nutrients solution. A new development uses colonies of dead bacteria that do not need to feed.

The bacterial colonies G. Sulfurreducens are growing up as thin films with close links between individual cells. From these tapes, you can crumble any shape, and scientists cut the right shape with a laser. Then the film from the bacteria was placed between the electrodes and sealed into a soft, sticky and breathing polymer that can be applied directly on the skin.

" says researchers, Transparent, small, thin, flexible biofilm, which produces a continuous and stable supply of electricity and which can be worn like a band-aid sticking directly on the skin, solves all these problems.