| http://www.w3.org/ns/prov#value | - add silica precursor to polyethylene glycol emulsion; form silica shell semiconductor nanocrystal; remain dissolved in body fluids, blood, urine, sweat for more than 6 hoursUS7825405Jun 12, 2008Nov 2, 2010Massachusetts Institute Of TechnologyUpon excitation, one carrier confined to core and other carrier confined to overcoating; band gaps; photovoltaic devices, photoconductorsUS7829140Mar 29, 2006
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