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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F12%3A10189185%21RIV14-MSM-11320___
rdf:type
n15:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1021/jp307463z
dcterms: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. 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.
dcterms:title
Adsorption of Histidine and a Histidine Tripeptide on Au(111) and Au(110) from Acidic Solution Adsorption of Histidine and a Histidine Tripeptide on Au(111) and Au(110) from Acidic Solution
skos:prefLabel
Adsorption of Histidine and a Histidine Tripeptide on Au(111) and Au(110) from Acidic Solution Adsorption of Histidine and a Histidine Tripeptide on Au(111) and Au(110) from Acidic Solution
skos:notation
RIV/00216208:11320/12:10189185!RIV14-MSM-11320___
n15:predkladatel
n18:orjk%3A11320
n3:aktivita
n20:I n20:P
n3:aktivity
I, P(LA08022), P(LC06058)
n3:cisloPeriodika
43
n3:dodaniDat
n13:2014
n3:domaciTvurceVysledku
n21:2563592
n3:druhVysledku
n5:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
121151
n3:idVysledku
RIV/00216208:11320/12:10189185
n3:jazykVysledku
n14:eng
n3:klicovaSlova
base; glycine; photoemission; imidazole; spectroscopy; solid-state; amino-acids; metal-surfaces; electronic-structure; tautomeric equilibria
n3:klicoveSlovo
n4:spectroscopy n4:glycine n4:tautomeric%20equilibria n4:photoemission n4:solid-state n4:imidazole n4:amino-acids n4:base n4:electronic-structure n4:metal-surfaces
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[3C2641819470]
n3:nazevZdroje
Journal of Physical Chemistry C
n3:obor
n12:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:projekt
n10:LC06058 n10:LA08022
n3:rokUplatneniVysledku
n13:2012
n3:svazekPeriodika
116
n3:tvurceVysledku
Prince, Kevin C. Plekan, Oksana Ptasinska, Sylwia Feyer, Vitaliy Iakhnenko, Marianna Tsud, Nataliya
n3:wos
000310482900037
s:issn
1932-7447
s:numberOfPages
7
n16:doi
10.1021/jp307463z
n6:organizacniJednotka
11320