Adsorption of Histidine and Histidine-Containing Peptides on Au(111)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10071619" target="_blank" >RIV/00216208:11320/10:10071619 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/10:00346584

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Adsorption of Histidine and Histidine-Containing Peptides on Au(111)

Popis výsledku v původním jazyce

The adsorption of histidine (His) and three His-derived peptides on Au(111) has been studied by soft X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure spectroscopy (NEXAFS) at the nitrogen and oxygen K edges. The peptides were elycyl histidine (Gly-H is), glycyl histidine glycine (Gly-His-Gly), and elycyl glycyl histidine (Gly-Gly-His) and were adsorbed at saturated coverage on the Au(111) surface from aqueous solution. Coverages of I and 0.5 monolayers (ML) of His were adsorbed by evaporation in vacuum and compared with 1 ML deposited from solution. There were no significant chemical differences between the monolayers deposited in vacuum or from solution. The Au 4f core level shift indicates that a ehemisorpti on rather than a physisorption bond is formed. In both deposited phases. His bonds to the gold surface in anionic form via the imino nitrogen atom of the imidazole ring and the oxygen atoms or the carboxylate group.

Název v anglickém jazyce

Adsorption of Histidine and Histidine-Containing Peptides on Au(111)

Popis výsledku anglicky

The adsorption of histidine (His) and three His-derived peptides on Au(111) has been studied by soft X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure spectroscopy (NEXAFS) at the nitrogen and oxygen K edges. The peptides were elycyl histidine (Gly-H is), glycyl histidine glycine (Gly-His-Gly), and elycyl glycyl histidine (Gly-Gly-His) and were adsorbed at saturated coverage on the Au(111) surface from aqueous solution. Coverages of I and 0.5 monolayers (ML) of His were adsorbed by evaporation in vacuum and compared with 1 ML deposited from solution. There were no significant chemical differences between the monolayers deposited in vacuum or from solution. The Au 4f core level shift indicates that a ehemisorpti on rather than a physisorption bond is formed. In both deposited phases. His bonds to the gold surface in anionic form via the imino nitrogen atom of the imidazole ring and the oxygen atoms or the carboxylate group.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Langmuir : the ACS journal of surfaces and colloids

ISSN

0743-7463

e-ISSN

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Svazek periodika

26

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000277928100127

EID výsledku v databázi Scopus

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