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 ...

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 ...

Occasionally referred to as ‘colloidal gold,’ gold colloid is a suspension comprising sub-micron gold nanoparticles suspended in a solvent - most commonly water. Gold nanoparticles' distinct ...

Lateral flow immunoassays, also called immunochromatography strips, are straightforward devices used to detect the absence or presence of a target analyte. Target analytes range from pathogens to ...

Surface-enhanced Raman spectroscopy (SERS) has been considered a promising technique for the detection of trace molecules in biomedicine and environmental monitoring. The ideal metal nanoparticles for ...

Colloidal precious metals are suspension of gold or silver nanoparticles dispersed in liquid. (Canva) The government has put further curbs on imports of gold and silver. It has shifted merchandise ...