Fluorescence quenching near small metal nanoparticles
نویسندگان
چکیده
منابع مشابه
Fluorescence quenching in molecules near rough metal surfaces
A classical electrodynamic near field calculation for the interaction of a Drude oscillator molecular dipole with a rough metal surface is presented. Effects of electromagnetic coupling between surface bumps (assumed to be prolate hemispheroids) and the bulk metal are included. Fluorescence lifetimes are found to be two to four orders of magnitude smaller than those predicted for a flat plane i...
متن کاملSpectral variation of fluorescence lifetime near single metal nanoparticles
We explore the spectral dependence of fluorescence enhancement and the associated lifetime modification of fluorescent molecules coupled to single metal nanoparticles. Fluorescence lifetime imaging microscopy and single-particle dark-field spectroscopy are combined to correlate the dependence of fluorescence lifetime reduction on the spectral overlap between the fluorescence emission and the lo...
متن کاملErratum: Spectral variation of fluorescence lifetime near single metal nanoparticles.
The original HTML version of this Article contained a typographical error in the volume number '6' which was incorrectly given as '5'. This has now been corrected. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the ...
متن کاملThionine Fluorescence Quenching by Metal Cations
The mechanism of the fluorescence quenching of aqueous thionine by various metal ions (Ce3+_, Fe2+, Mn2+, Mg2+, Cs+ and Na+) was studied at pn = 2.5. The following Stern-Volmer constants (K s v) were determined: XSv(Fe2+) == 1.13 dm3 mol -1 , Ksw(Mn2+) = 0.24 dm3 mol"1, Ksv(Ce3+) = 0.24 dm3 mol -1, i£sv(Cs~) — 0.03 dm3 mol -1 . At concentrations below 1 mol.dm -3 Na2S04 and MgS04 are very weak ...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2012
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.4721388