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Selective Surface-Enhanced Raman Spectroscopy Using a Polymer-Coated Substrate

Publication ,  Journal Article
Pal, A; Stokes, DL; Alarle, JP; Vo-Dinh, T
Published in: Analytical Chemistry
January 1, 1995

The polymer, poly(vinylpyrrolidone), is investigated as a potential coating for alumina-based surface-enhanced Raman scattering (SERS) substrates. Description for dipcoating alumina substrates with a 5% (w/v) methanolic solution of the polymer is included. Using these polymercoated substrates, various compounds, including monocyclic aromatic compounds with hydroxyl, carboxyl, and various nitrogen-based functional groups, are detected. Intensity of SERS signals from the polymer-coated substrates in comparison to that of SERS signals from uncoated substrates is demonstrated to be a function of the analyte permeability to the polymer coating. Different enhancement factors are reported for various compounds, such as benzoic acid, isonicotinic acid, and 2, 4-dinitrophenol, thus indicating some enhancement selectivity of the polymer coating to various analytes. Using benzoic acid as a test compound, various coating procedures (horizontal and vertical dipping procedures) have been evaluated. The poly(vinylpyrrolidone)-coated substrate is shown to yield a relative standard deviation in SERS signal intensity of ∼20%. The potential of the polymer-coated substrate as a selective detection probe is illustrated using the analyses of binary mixtures. Finally, the advantages of the polymer coating for protecting the SERS-active layer are also discussed. © 1995, American Chemical Society. All rights reserved.

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Published In

Analytical Chemistry

DOI

EISSN

1520-6882

ISSN

0003-2700

Publication Date

January 1, 1995

Volume

67

Issue

18

Start / End Page

3154 / 3159

Related Subject Headings

  • Analytical Chemistry
  • 4004 Chemical engineering
  • 3401 Analytical chemistry
  • 3205 Medical biochemistry and metabolomics
  • 0399 Other Chemical Sciences
  • 0301 Analytical Chemistry
 

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Pal, A., Stokes, D. L., Alarle, J. P., & Vo-Dinh, T. (1995). Selective Surface-Enhanced Raman Spectroscopy Using a Polymer-Coated Substrate. Analytical Chemistry, 67(18), 3154–3159. https://doi.org/10.1021/ac00114a009
Pal, A., D. L. Stokes, J. P. Alarle, and T. Vo-Dinh. “Selective Surface-Enhanced Raman Spectroscopy Using a Polymer-Coated Substrate.” Analytical Chemistry 67, no. 18 (January 1, 1995): 3154–59. https://doi.org/10.1021/ac00114a009.
Pal A, Stokes DL, Alarle JP, Vo-Dinh T. Selective Surface-Enhanced Raman Spectroscopy Using a Polymer-Coated Substrate. Analytical Chemistry. 1995 Jan 1;67(18):3154–9.
Pal, A., et al. “Selective Surface-Enhanced Raman Spectroscopy Using a Polymer-Coated Substrate.” Analytical Chemistry, vol. 67, no. 18, Jan. 1995, pp. 3154–59. Scopus, doi:10.1021/ac00114a009.
Pal A, Stokes DL, Alarle JP, Vo-Dinh T. Selective Surface-Enhanced Raman Spectroscopy Using a Polymer-Coated Substrate. Analytical Chemistry. 1995 Jan 1;67(18):3154–3159.
Journal cover image

Published In

Analytical Chemistry

DOI

EISSN

1520-6882

ISSN

0003-2700

Publication Date

January 1, 1995

Volume

67

Issue

18

Start / End Page

3154 / 3159

Related Subject Headings

  • Analytical Chemistry
  • 4004 Chemical engineering
  • 3401 Analytical chemistry
  • 3205 Medical biochemistry and metabolomics
  • 0399 Other Chemical Sciences
  • 0301 Analytical Chemistry