期刊
SMALL
卷 6, 期 22, 页码 2590-2597出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201000868
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资金
- DFG [SPP1313 PA794/4-1, NI291/7-1]
- European Commission
Colloidal nano particles are often stabilized by high surface charges. These create an electrical potential that may strongly affect the concentration of dissolved ions, which presents a formidable problem for the use of nanoparticles in ion-sensing applications. This effect is investigated systematically with organic fluorophore-gold nanoparticle hybrids, which have a chloride-sensitive fluorophore attached at varying distances from their surface. The distance-dependent fluorescence response is quantitatively assessed using fluorescence spectroscopy.
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