Title
Inner Filter Effect on Surface Enhanced Raman Spectroscopic Measurement
Abbreviated Journal Title
Anal. Chem.
Keywords
GOLD NANOPARTICLE; SCATTERING SERS; HOT-SPOTS; SILVER; FLUORESCENCE; MOLECULE; CLUSTERS; DIMERS; FILM; Chemistry, Analytical
Abstract
Presented herein is a combined experimental and computational study of the gold nanopartide (AuNP) inner filter effect on surface enhanced Raman spectroscopic (SERS) measurements. Using a bianalyte strategy in which dithiopurine (DTP) and ethanol were employed as the model analytes, we demonstrated that AuNPs enhance DTP's Raman signal but attenuate ethanol's Raman intensity. Combined time-resolved UV-vis and Raman measurements showed that AuNP aggregation has significant and an exactly opposite impact on the AuNP inner filter effect and SERS enhancement. This research provides critical new insights regarding SEAS signal variation and offers a simple methodology for reliable determination of the SERS enhancement factors.
Journal Title
Analytical Chemistry
Volume
84
Issue/Number
20
Publication Date
1-1-2012
Document Type
Article
DOI Link
Language
English
First Page
8437
Last Page
8441
WOS Identifier
ISSN
0003-2700
Recommended Citation
"Inner Filter Effect on Surface Enhanced Raman Spectroscopic Measurement" (2012). Faculty Bibliography 2010s. 2223.
https://stars.library.ucf.edu/facultybib2010/2223
Comments
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