期刊
JOURNAL OF RAMAN SPECTROSCOPY
卷 48, 期 10, 页码 1323-1329出版社
WILEY
DOI: 10.1002/jrs.5220
关键词
carfentanil; DFT; fentanyl; opioids; SERS
类别
资金
- National Science Foundation [CHE-1402750, HRD-1547830]
- City University of New York PSC-CUNY Faculty Research Award Program [69079]
- XSEDE [CHE090043]
- CUNY High Performance Computer Center
- Direct For Education and Human Resources
- Division Of Human Resource Development [1547830] Funding Source: National Science Foundation
We examine the normal Raman and the surface-enhanced Raman spectra of fentanyl and carfentanil. As an aid in the assignment of the spectral lines, we present a density functional theory calculation. Although Raman spectroscopy is a valuable analytic tool for the detection and identification of molecular species, it is a weak effect and requires specialized equipment for detection of trace samples. We therefore turn to surface-enhanced Raman spectroscopy, which utilizes the large enhancement of the Raman signal endowed by proximity to silver or gold nanoparticles. The enhancement factor (E-F) obtained in this experiment is >= 1.6x10(5). This points the way towards future development of a simple and sensitive technique for the detection of analytes in trace quantities, particularly for wider application in forensic science.
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