Colloidal silver is a suspension of tiny particles of silver in a liquid, or sometimes gel. The particles are so small that they can’t be filtered out of the solution; these nanoparticles range from ...

At a time when most people are avoiding metals such as lead and mercury, there’s a full-out rush among the health-conscious for silver, a metal that is showing up in elixirs and sprays, soaps and ...

Colloidal gold consists of microscopic particles of gold suspended in liquid and is usually red or purple. It comes from shale or clay deposits. There has been much debate about the health benefits of ...

Researchers at Utrecht University have quantitatively mapped the three-dimensional structure of photonic supraparticles for the first time. Supraparticles are microscopic spheres composed of thousands ...

Colloidal self-assembly has been investigated as a promising and practical approach for the fabrication of photonic nanostructures, including colloidal crystals, composite and inverse opals, and ...

Health officials say taking colloidal silver can turn your skin blue If Your Time is short Consuming colloidal silver can cause argyria, a blue-gray discoloration of the skin, according to health ...

NYU researchers have found a way to use light to control how microscopic particles assemble into crystals, effectively ...