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Cited by 226

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Involvement of the LSPR Spectral Overlap for Energy Transfer between a Dye and Au Nanoparticle

Singh, Mani Prabha, Strouse, Geoffrey F.·2010·Journal of the American Chemical Society

Abstract

Nanometal surface energy transfer (NSET) is a molecular ruler technique that has been utilized to optically probe long distances in biomolecular structures. We investigate the useful spectral range of donor dyes and the importance of overlap between the localized surface plasmon resonance (LSPR) and the donor photoluminescence (520-780 nm) and provide a comprehensive study of the R(0) values for the NSET processes from dyes to 2 nm Au NP (gold nanoparticle). The distance-dependent quenching results provide experimental evidence that the efficiency curve slope, R(0) value, and distance of quenching is best modeled as a surface-mediated NSET process analogous to the predictions of Persson-Lang and Chance-Prock-Silbey (CPS). The results show that the LSPR plays a very important role in the observed quenching of excited-state donors at the surface of the nanometal, and the correlation to the NSET model allows a compilation of the necessary biophysical constants for application within the toolbox of biophysics.

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Metadata

Authors
Singh, M. P., & Strouse, G. F.
Venue
Journal of the American Chemical Society
Published
2010-06-18
Volume
132
Issue
27
Pages
9383-9391
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W1998996122
Cited by
226
References
1
FWCI
8.11
Type
journal article
Language
en
Open access
closed

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