EC-SERS study of phenolic acids sorption behavior on Au, Ag and Cu substrates – Effect of applied potential and metal used

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F19%3A43919241" target="_blank" >RIV/60461373:22340/19:43919241 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0169433218331957?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169433218331957?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2018.11.120" target="_blank" >10.1016/j.apsusc.2018.11.120</a>

Result language

angličtina

Original language name

EC-SERS study of phenolic acids sorption behavior on Au, Ag and Cu substrates – Effect of applied potential and metal used

Original language description

p-coumaric and ferulic acids are natural phenolic phytochemicals present in seeds and leaves usually in very low concentrations. For this reason, their detection and identification using traditional techniques of vibrational spectroscopy is problematic and requires the use of advanced methods to reduce the detection limit. Both p-coumaric and ferulic acids are significant for their antioxidant properties and other biological activities such as antiallergic, hepatoprotective, anticarcinogenic or modulation of enzyme activity. Surface-enhanced Raman scattering (SERS) spectroscopy appears a good tool for their study and detection. In SERS spectroscopy, the mechanism of analytes adsorption on the surface of a plasmonic metal substrate plays a key role, since the formation of a surface complex and its geometry fundamentally influences the enhancement of spectral response. This work was aimed at in-situ SERS spectroelectrochemical study of p-coumaric and ferulic acid showing the dependence on applied potential and changes in adsorption mechanism. The SERS spectra were collected at 785 nm excitation wavelength on gold, silver and copper rough electrodes. The applied potential significantly influences the orientation of the molecules towards the active sites of the metal substrate and their overall spatial arrangement on the surface in terms of the individual adsorption mechanisms. © 2018 Elsevier B.V.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Surface Science

ISSN

0169-4332

e-ISSN

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Volume of the periodical

470

Issue of the periodical within the volume

-

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

716-723

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85057144280