Surface-enhanced Raman scattering of dopamine at polymer-coated silver electrodes.

Attenuation of dopamine surface-enhanced Raman scattering (SERS) spectra at silver electrodes by protein adsorption is described. Polymer-modified electrodes eliminate protein adsorption effects. Partially hydrolyzed cellulose acetate coatings prevent protein adsorption and allow transport of dopamine to and from the electrode surface. Dopamine SERS spectra from these electrodes are similar to those obtained at uncoated electrodes. Perfluorosulfonate (Nafion) coatings also prevent protein adsorption. However, dopamine transported to the electrode remains trapped inside the coating and cannot be removed.

[1]  S. Angel,et al.  Near-Infrared Surface-Enhanced Raman Spectroscopy. Part I: Copper and Gold Electrodes , 1988 .

[2]  M. Morris,et al.  Surface-enhanced Raman spectroscopy of the catecholamine neurotransmitters and related compounds. , 1988, Analytical chemistry.

[3]  J. Wang,et al.  Thin-layer electrochemical detector with a glassy carbon electrode coated with a base-hydrolyzed cellulosic film. , 1985, Analytical chemistry.

[4]  C. R. Martin,et al.  Ion-exchange selectivity of Nafion films on electrode surfaces , 1984 .

[5]  R. K. Force.  Surface-enhanced Raman spectroscopy at a silver electrode as a detector in flow-injection analysis , 1988 .

[6]  R. Wightman,et al.  Temporal characterization of perfluorinated ion exchange coated microvoltammetric electrodes for in vivo use. , 1987, Analytical chemistry.

[7]  D. I. Leikis,et al.  Determination of the potentials of zero charge of solid metals by means of differential capacity measurements , 1973 .

[8]  M. Fleischmann,et al.  Raman spectra of pyridine adsorbed at a silver electrode , 1974 .

[9]  R. Rauh,et al.  Feasibility studies for the detection of organic surface and subsurface water contaminants by surface-enhanced Raman spectroscopy on silver electrodes. , 1987, Analytical chemistry.

[10]  R. Wightman,et al.  Detection of dopamine dynamics in the brain. , 1988, Analytical chemistry.

[11]  Tuan Vo-Dinh,et al.  Detection of nitro-polynuclear aromatic compounds by surface-enhanced Raman spectrometry , 1986 .

[12]  J. Wang,et al.  Cellulose acetate coated mercury film electrodes for anodic stripping voltammetry. , 1986, Analytical chemistry.

[13]  Hsue-Yang Liu,et al.  Redox mediation of dioxygen reduction within Nafion electrode coatings containing colloidal platinum as catalyst , 1983 .

[14]  R. McCreery,et al.  Versatile, efficient Raman sampling with fiber optics , 1984 .

[15]  D. Meisel,et al.  Catalysis of the hydrogen evolution reaction by colloidal Ag anchored in perfluorosulfonate resin , 1981 .

[16]  J. B. Justice,et al.  Sampling considerations for on-line microbore liquid chromatography of brain dialysate. , 1986, Analytical chemistry.

[17]  S. Weber,et al.  Control of molecular weight selectivity in electrode modifications based on phase-inversion cellulose acetate membranes. , 1989, Analytical chemistry.

[18]  C. R. Martin,et al.  Sensors from polymer modified electrodes , 1986 .

[19]  M. Rice,et al.  Ion exchange and transport of neurotransmitters in nation films on conventional and microelectrode surfaces , 1985 .

[20]  J. Fritz,et al.  Model for chromatographic separations based on renewal theory , 1984 .

[21]  M. Moskovits.  Surface-enhanced spectroscopy , 1985 .

[22]  Raman Spectroscopy of Molecules Adsorbed on Solid Surfaces , 1985 .

[23]  N. Lewis,et al.  Reaction entropies and acid−base behavior of transition-metal complexes in recast nafion films , 1988 .

[24]  J. Winefordner,et al.  Trace determination of nitrogen-containing drugs by surface enhanced Raman scattering spectrometry on silver colloids. , 1987, Analytical chemistry.

[25]  J. Winefordner,et al.  Mixture analysis and quantitative determination of nitrogen-containing organic molecules by surface-enhanced Raman spectrometry. , 1989, Analytical chemistry.