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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la303308m
|2 doi
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|a pubmed25n0742.xml
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|a (NLM)23157706
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Rībena, Dina
|e verfasserin
|4 aut
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|a Significance of the amide functionality on DOPA-based monolayers on gold
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 20.05.2013
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|a Date Revised 21.11.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The adhesive proteins secreted by marine mussels contain an unusual amino acid, 3,4-dihydroxyphenylalanine (DOPA), that is responsible for the cohesive and adhesive strength of this natural glue and gives mussels the ability to attach themselves to rocks, metals, and plastics. Here we report a detailed structural and spectroscopic investigation of the interface between N-stearoyldopamine and a single-crystalline Au(111) model surface and an amide-absent molecule, 4-stearylcatechol, also on Au(111), with the aim of understanding the role of the amide functionality in the packing, orientation, and fundamental interaction between the substrate and the monolayer formed from an aqueous environment by the Langmuir-Blodgett technique. The organization of monolayers on gold was observed directly and studied in detail by X-ray photoelectron spectroscopy (XPS), contact angle measurements (CA), surface-enhanced Raman spectroscopy (SERS), infrared reflection-absorption spectroscopy (IRRAS), and atomic force microscopy (AFM). Our study shows that within the monolayer the catecholic oxygen atoms are coordinated to the gold surface, having a more perpendicular orientation with respect to the aromatic ring and the apparently tilted alkyl chains, whereas the amide functionality stabilizes the monolayer that is formed
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|a Journal Article
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|a Adhesives
|2 NLM
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|a Amides
|2 NLM
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|a Catechols
|2 NLM
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|a N-stearoyl-dopamine
|2 NLM
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|a Proteins
|2 NLM
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|a Stearates
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Dihydroxyphenylalanine
|2 NLM
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|a 63-84-3
|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 Dopamine
|2 NLM
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|a VTD58H1Z2X
|2 NLM
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|a Alekseev, Alexander
|e verfasserin
|4 aut
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|a van Asselen, Otto
|e verfasserin
|4 aut
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|a Mannie, Gilbère J A
|e verfasserin
|4 aut
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|a Hendrix, Marco M R M
|e verfasserin
|4 aut
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|a van der Ven, Leendert G J
|e verfasserin
|4 aut
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|a Sommerdijk, Nico A J M
|e verfasserin
|4 aut
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|a de With, Gijsbertus
|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 1985
|g 28(2012), 49 vom: 11. Dez., Seite 16900-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:28
|g year:2012
|g number:49
|g day:11
|g month:12
|g pages:16900-8
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|u http://dx.doi.org/10.1021/la303308m
|3 Volltext
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