Gold is more than a hedge against inflation: it is also a vital material in many kinds of rapid COVID tests. The precious metal’s unique scientific properties allow scientists to employ it in ...

In this gold panning test, the Gold Cube fine gold recovery system is put to work on a batch of paydirt to see how well it captures tiny gold particles. With its layered vortex mat system and ...

Gold-based antigen tests, which use gold nano-particles to quickly assess samples, helped ease the burden of COVID testing across the world.