Scientists at the American Chemical Society say that in the near future we may be able to power our phones, any other electronic device, by using biofuel cells. Biofuel cells create energy using oxygen and sugar in a chemical reaction that can readily be transformed into electricity. Now don't get too worried that we will become batteries for the machines in their quest for global domination.
Researchers in Grenoble, France led by biomedical engineer Philippe Cinquin implanted a biofuel cell in a lab rat obtaining 24.4 microwatts. Which, according to them, exceeds a pacemaker's draw of 10 microwatts. The device was stable for 11 days, and another rat lasted several months. The process explained below.
Imagine your lost in the mountains and your cell phone goes dead and all you have is some doughnuts. Well just plug your phone on in to your implant and in no time flat, you're getting rescued.
See the Abstract, here.
Eavesdropper
ps. This cell, below, feeds on human blood.