The suspended gold particles are then sifted out and reused. According to Excir, the process recovers more than 99% of the gold from e-waste in a matter of seconds.

Ah, the glitter of gold… or fake gold, we’re not really sure. But [Mike Hogan] and [PJ Santoro] have been working with faux gold leaf as a conductor on circuit boards. The device you se… ...

In a previous incarnation, the gold used to make a new line of fine jewelry may have been part of a circuit board in your last phone or laptop. The gold is mined from e-waste collected in a ...

Once it's absorbed as much as it can, the sponge is removed and then heated, to make a gold nugget. (Image credit: Advanced Materials, First published: 23 January 2024, DOI: (10.1002/adma.202310642)) ...