The Bacteria Powered Light

Posted on Nov 27 2015 - 9:15pm by Robert

A team of researchers at the UTEC technology institute in Peru have been working on a type of light source that doesn’t need electricity or even batteries to give us plenty of light.

The work has been inspired by the plight of some villages in Peru, where the location and weather conditions can make it difficult for the locals to enjoy constant, stable electricity. This is a problem that is mirrored around the planet in other remote areas with poor infrastructure.

A Clever Use of Nature and Technology

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The solution that the researchers have come up with involves a clever use of technology and nature, as it uses bacteria to provide the light.

To be exact, the light is generated by micro-organisms which go by the name of geobacters. These little organisms emit electrodes, a fact the team took advantage of by putting them inside a big planter with a metal grid inside it.

As the bacteria gives off energy, it is stored inside a battery. This battery can then be used to provide a couple of hour’s worth of light each day per plant.

At the moment, the invention is still far from being ready to get used on a large scale basis. However, the scientists at UTEC have produced 10 prototypes that have been given to the residents of the remote Peruvian settlement of Nuevo Saposoa, where they have given them a great way of getting light from a natural source.

Do you think that more places should use this sort of natural approach?

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