Future Electronics Could Be Powered by Sugar
Finally, scientists have come up with a way to combine my two favorite things: music and sugar. Japanese researchers report in the latest issue of Energy and Environmental Science that they have created a biofuel cell that uses enzymes to break down sugars. Four of the cells combined produce 100 milliwatts of power— enough to run an MP3 player with speakers or a remote-controlled car.
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Each cell consists of an anode and cathode separated by a proton-conducting membrane. Sugar—or another renewable fuel— is oxidized at the nanode, where it generates electrons and protons. The electrons and protons then combine with oxygen at the cathode to form water.
The researchers amped up the cell’s energy output by using an electron transfer mediator to move electrons between the electrodes and enzymes.
The Japanese biofuel cell is the first to have an energy output high enough for practical applications, so hopefully it will unleash a flurry of interest in the field. And who knows—in the future, you may power even larger electronics with biofuel cells.
Photo Credit: RSC Publishing
So, you’ve been waiting for scientists to combine sugar and music? I’d have to say you got lucky on that one!
This just goes to show that when there’s a need, there are so many inventive ways to find answers. They’re all around us.
I think it’s also a signal to Americans that either we get on the alternative energy train as engineers, or we’ll be left at the station. The world won’t wait for us.
How long will these four cells power the MP3 and speakers?
Also, how much sugar is needed to get these cells working? Be cool if you could find out.
Seems like a practical energy source, great article.
What is the by-product of the spent sugar?
Is it toxic?
Is it safe to eat?
Is it reusable?
Can I put my spent sugar battery in my morning tea?
Design should consider the cradle to grave lifecycle of new products and technology.
Sweet!
Wow, would this make insects electronics and vice versa?