This is absolutely a breakthrough in implant technology: of course, now the question is, how long will they last in-vivo? Five years? Fuel cells can have a fore

This is absolutely a breakthrough in implant technology: of course, now the question is, how long will they last in-vivo? Five years? Fuel cells can have a foreshortened lifespan. Also, an idea: perhaps such a battery could also be used for glucose regulation in diabetic patients. The current itself can be a glucose meter, and by opening or closing micro-fluidic channels the machine could regulate blood glucose much more accurately (and healthily) than the spikiness of regular injections.