Scientists are developing a way to use nature’s own power stations, mitochondria, to convert organic matter into energy.
According to the BBC, scientists at St Louis University in Missouri, US have developed a prototype cell, similar to the ones our own bodies, which can convert almost anything into energy. Suggested fuels which the cells could use include vegetable oil and even energy drinks to power electrical devices.
The work is very much the developmental stages and potential uses for the technology could take decades to develop. However the project so far, led by Dr Shelley Minteer, demonstrates how we can mimic some of natures processes for energy production.
The ‘biofuel cells’ work like fuel cells, breaking down molecules to unleashes electrons which can become electricity.
Until now, Dr Minteer and her colleagues have focused their research on the use of enzymes, which are expert at breaking down particular ‘fuel’ molecules such as methanol or glucose. But the new research focuses on mitochondria which consist of a whole ensemble of enzymes working together to convert a range of ‘fuel’ molecules into energy.
"In order to be able to completely consume a fuel… you need a whole series of enzymes, anywhere from three, for something simple, to 22 for something like glucose, and you need to get these enzymes to work together," Dr Minteer told BBC News. "The mitochondria channel the fuel from enzyme one directly to enzyme two and so on; they do this metabolism far more efficiently than we do by putting a soup of enzymes down on the electrode."
A demonstration device which has been described at a meeting of the American Chemical Society in the US, has so far only been used with simple fuels made of a single type of molecule, as the enzyme approaches have required until now. But future efforts will aim to make the cells work with more familiar sources of energy.
"Mitochondria can break down a wide variety of fuels," Dr Minteer said.
"That means it can handle fuel mixtures that you might see in, say, an energy drink or a protein shake."
Plamen Atanassov, director of the Center for Emerging Energy Technologies at the University of New Mexico said the technique of using the cells could one day have a wide range of uses, adding: "It ultimately may lead to the introduction of a whole new domain of fuels that we would never otherwise be able to tap."







