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 ...

Colloidal photonic glasses offer an appealing way to produce vivid colors without any chemical dyes—but so far, a stubborn optical effect has long prevented them from generating a true red color. Now, ...

Add Yahoo as a preferred source to see more of our stories on Google. We all know GOLD is a rare and precious metal and a popular commodity for investment. But apart from being very valuable have you ...

Radioactive gold has found its greatest success and widest application, however, in the attempt to eliminate the intractable formation of fluid in the pleural and peritoneal cavities in carcinomatosis ...