Journal
CHEMISTRY LETTERS
Volume 48, Issue 12, Pages 1504-1506Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.190684
Keywords
Distance-dependent fluorescence quenching; NSET; FRET
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Funding
- Army Research Office [W911NF-122-0022]
- National Science Foundation JSU-UCSB Partnership for Research and Education in Materials [DMR-0611539]
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Distance dependent fluorescence quenching and mechanisms are studied on a silver nanoparticle (AgNP) surface. The longer the distance between fluorophore and AgNP surface, the less quenching. The relationship fits the quantum efficiency energy transfer equation where a Nanoparticle-Based Energy Transfer (NSET) quenching model dominates with the distance dependent factor of d(4.42) and an estimated NSET radius of 14.4 nm. Within a 10 nm range, the quenching is a result of the combination of Forster Resonance Energy Transfer and NSET.
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