The fragmentation of gold nanoparticles induced by small biomolecules.


Spherical gold nanoparticles (3-5 nm) undergo a surprising fragmentation without extra energy input and are converted into ultrasmall particles (less than 1.5 nm), which is a direct result of electron transfer between gold nanoparticles and cysteine. 
DOI: 10.1039/b809736d


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