Adsorption of Histidine and a Histidine Tripeptide on Au(111) and Au(110) from Acidic Solution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10189185" target="_blank" >RIV/00216208:11320/12:10189185 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/jp307463z" target="_blank" >http://dx.doi.org/10.1021/jp307463z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp307463z" target="_blank" >10.1021/jp307463z</a>

Result language

angličtina

Original language name

Adsorption of Histidine and a Histidine Tripeptide on Au(111) and Au(110) from Acidic Solution

Original language description

The adsorption of histidine (His), and its peptide glycyl-glycyl-histidine (Gly-Gly-His), on Au(111) and Au(110) 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 molecules were adsorbed on surfaces from acidic (pH similar to 3) solution. The results are compared with our previous studies of the adsorption of histidine and its peptides on Au(111) deposited on Au(111) from neutral solutions. When deposited from acidic solution, His adsorbs as carboxylic and carboxylate forms on both Au(111) and Au(110) surfaces, whereas its peptide is present mainly in the carboxylic form. In contrast, both molecules deposited from neutral solution adsorbed mainly as carboxylates. The imino nitrogen atom of the imidazole ring plays a crucial role in the interaction with gold surfaces. The Au 4f core level shift indicates that a chemisorption rather than a physisorption process occurs

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

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

Name of the periodical

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

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Volume of the periodical

116

Issue of the periodical within the volume

43

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

22960-22966

UT code for WoS article

000310482900037

EID of the result in the Scopus database

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