12 December 2012 96 5K Report

There are several chemical methods to synthesize nanoparticles of gold, silver, and iron oxide, as co-precipitation or thermal decomposition. But physical methods either are not widely known or publicized. There is the laser ablation in a liquid medium, which can obtain any type of nanoparticles, but lasers for this technique are expensive. Does anyone know a way to make it cheaper or other physical process to obtain nanoparticles?

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