Power Walk: Shoe Inserts Using Conductive Droplets Could Charge Personal Electronics on the Go

Scientific American reports Tom Krupenkin and Ashley Taylor are developing ‘in-shoe technology’ to generate power.

The market news is quoted as saying,

To test his idea, Krupenkin placed patches of electrodes coated very thinly with the dielectric tantalum oxide along tiny channels a few millimetres wide. Using a resistor to convert electrical charge to alternating current, Krupenkin was able to harvest electrical energy from drops of either mercury or galinstan, a gallium-based alloy as they were moved along these channels and over the electrodes.

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