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August 28th, 2003

Wet nanoparticles alter their atoms

Abstract:
‘Just add water’ is a phrase found on many instant-mix food packets. Now scientists at the University of California Berkeley, US, have found that applying the technique to certain nanoparticles can actually change their structure. The researchers synthesized zinc sulphide (ZnS) nanoparticles with an average diameter of 3 nm in anhydrous methanol. They discovered that adding water to the nanoparticles at room temperature reduced distortions of the surface and interior of the particle, producing a more crystalline arrangement of atoms. The resulting structure was close to that of sphalerite - tetrahedrally coordinated cubic ZnS. (more on earlier story)

Source:
Nanotechweb

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