"These tiny creatures are not merely of academic interest.
They may hold a key to solving some of the biggest challenges facing humanity – environmental pollution and sustainable energy. Such bacteria can “eat” pollution by converting toxic pollutants into less harmful substances and generating electricity in the process.
“As these bacteria pass their electrons into metals or other solid surfaces, they can produce a stream of electricity that can be used for low-power applications,” said Beyenal.
Most living organisms – including humans – use electrons, which are tiny negatively-charged particles, in a complex chain of chemical reactions to power their bodies. Every organism needs a source of electrons and a place to dump the electrons to live. While we humans get our electrons from sugars in the food we eat and pass them into the oxygen we breathe through our lungs, several types of bacteria dump their electrons to outside metals or minerals, using protruding hair-like wires."