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Floating beads of water act as tiny test tubes

Superheated drops used to create nanoparticles

BUBBLE CHEMISTRY  A phenomenon called the Leidenfrost effect helped convert gold salts in a water droplet (left) into gold nanoparticles (right).



Because the reaction requires only water, instead of hazardous or waste-producing solvents, the study authors say the technique offers a cheap, environmentally friendly way to manufacture nanoscale materials.

