Heart Cells Can Pump More Than Blood

The future of medicine lies in minute devices within the body, but there are understandable concerns about installing electromechanical devices in living things – the necessity for an energy supply, for instance. One solution to this issue is to exploit the properties of other living cells, like making tiny fluid pumps using heart cells as the power cells. No batteries required – just keep the nutrients flowing, and the little suckers will keep on pumping in perpetuity.