Elucidation of sorption model of riboflavin adsorbed on Ag, Au and Cu nanostructured surfaces

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Elucidation of sorption model of riboflavin adsorbed on Ag, Au and Cu nanostructured surfaces

Popis výsledku v původním jazyce

Technique of Surface-enhanced Raman scattering (SERS) spectroscopy is a suitable analytical tool to study compounds adsorbed on Ag, Au or Cu surfaces. In-situ SERS spectroelectrochemistry allows investigation of surface intermediates in dependence on applied potential. Riboflavin, which interaction with surface has been studied in this work, is a compound of the vitamin B group. The investigation of riboflavin molecules orientation was carried out in special spectroelectrochemical cell using dispersiveRaman spectrometer with laser excitation at 785 nm. Aqueous solution (0.1 M KCl) of riboflavin (10-5 mol.L-1) was used as electrolyte and deposition bath simultaneously. In-situ SERS spectra of riboflavin adsorbed on the surfaces were recorded potentialvalue from +100 mV to -1100 mV with step 100 mV. From selection rules of SERS it is known that vibration modes perpendicular to the surface and located close to the surface are the most enhanced. We observed that bands intensities and the

Název v anglickém jazyce

Elucidation of sorption model of riboflavin adsorbed on Ag, Au and Cu nanostructured surfaces

Popis výsledku anglicky

Technique of Surface-enhanced Raman scattering (SERS) spectroscopy is a suitable analytical tool to study compounds adsorbed on Ag, Au or Cu surfaces. In-situ SERS spectroelectrochemistry allows investigation of surface intermediates in dependence on applied potential. Riboflavin, which interaction with surface has been studied in this work, is a compound of the vitamin B group. The investigation of riboflavin molecules orientation was carried out in special spectroelectrochemical cell using dispersiveRaman spectrometer with laser excitation at 785 nm. Aqueous solution (0.1 M KCl) of riboflavin (10-5 mol.L-1) was used as electrolyte and deposition bath simultaneously. In-situ SERS spectra of riboflavin adsorbed on the surfaces were recorded potentialvalue from +100 mV to -1100 mV with step 100 mV. From selection rules of SERS it is known that vibration modes perpendicular to the surface and located close to the surface are the most enhanced. We observed that bands intensities and the

Druh

D - Stať ve sborníku

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

CHOBOTIX 2012

ISBN

978-80-7080-813-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

96-101

Název nakladatele

ICT Press, VŠCHT Praha

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

10. 5. 2012

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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