A special laser system is able to induce billions of gold nanoparticles to behave as one. The research exploits this unique feature for applications in biomedicine and photonics, from tumor treatments to energy production, thanks to the ability of these particles to absorb or reflect light of a certain color, depending on their geometry.

Via:: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/nanotechnology/~3/5aQup4mFdd8/171103105700.htm

Nano-sized gold particles have been shaped to behave as clones in biomedicine

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