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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1021/la104038q
|2 doi
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|a pubmed24n0689.xml
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|a (DE-627)NLM206758987
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|a (NLM)21417247
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|a DE-627
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|a eng
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|a Dietrich, Paul M
|e verfasserin
|4 aut
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|a Adlayers of dimannoside thiols on gold
|b surface chemical analysis
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 26.08.2011
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|a Date Revised 12.04.2011
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2011 American Chemical Society
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|a Carbohydrate films on gold based on dimannoside thiols (DMT) were prepared, and a complementary surface chemical analysis was performed in detail by X-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), near-edge X-ray absorption fine structure (NEXAFS), FT-IR, and contact angle measurements in order to verify formation of ω-carbohydrate-functionalized alkylthiol films. XPS (C 1s, O 1s, and S 2p) reveals information on carbohydrate specific alkoxy (C-O) and acetal moieties (O-C-O) as well as thiolate species attached to gold. Angle-resolved synchrotron XPS was used for chemical speciation at ultimate surface sensitivity. Angle-resolved XPS analysis suggests the presence of an excess top layer composed of unbound sulfur components combined with alkyl moieties. Further support for DMT attachment on Au is given by ToF-SIMS and FT-IR analysis. Carbon and oxygen K-edge NEXAFS spectra were interpreted by applying the building block model supported by comparison to data of 1-undecanethiol, poly(vinyl alcohol), and polyoxymethylene. No linear dichroism effect was observed in the angle-resolved C K-edge NEXAFS
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Disaccharides
|2 NLM
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|a Mannosides
|2 NLM
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|a Sulfhydryl Compounds
|2 NLM
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|a Gold
|2 NLM
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|a 7440-57-5
|2 NLM
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|a Horlacher, Tim
|e verfasserin
|4 aut
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|a Girard-Lauriault, Pierre-Luc
|e verfasserin
|4 aut
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|a Gross, Thomas
|e verfasserin
|4 aut
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|a Lippitz, Andreas
|e verfasserin
|4 aut
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|a Min, Hyegeun
|e verfasserin
|4 aut
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| 700 |
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|a Wirth, Thomas
|e verfasserin
|4 aut
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|a Castelli, Riccardo
|e verfasserin
|4 aut
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|a Seeberger, Peter H
|e verfasserin
|4 aut
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|a Unger, Wolfgang E S
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 27(2011), 8 vom: 19. Apr., Seite 4808-15
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:27
|g year:2011
|g number:8
|g day:19
|g month:04
|g pages:4808-15
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|u http://dx.doi.org/10.1021/la104038q
|3 Volltext
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