Method 4: Use Dry Ice. Primarily used as a cooling agent, dry ice can be used to get out small dents from your car. As long as you're wearing protective gloves, hold down a piece of dry ice on the dent and rub it around until you hear your dent pop back into place.
This effect was maintained for 1 to 2 months. You could say that nano gold, which is far more bioavailable than even a gold colloid, is a blessing for the brain. Also, nano gold is a very powerful anti-inflammatory agent. Gold has long been used in the treatment of rheumatoid arthritis. However, in traditional treatments, gold compounds are used which are toxic and produce a lot of side effects.
How nanoparticles change color. It turns out that goldâs capability to catalyze reactions is not the only thing that changes at the nanoscale. Gold can actually change color depending on the size of the gold particles. One of the characteristics of metals is that they are shiny because light reflects off their surfaces. This reflectivity has to do with electron clouds at the surface of metals.