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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1021/la304730q
|2 doi
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|a eng
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|a Marmisollé, Waldemar A
|e verfasserin
|4 aut
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|a Self-assembled monolayers of NH2-terminated thiolates
|b order, pKa, and specific adsorption
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a Date Completed 11.11.2013
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|a Date Revised 01.05.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Self-assembled monolayers (SAMs) of amino-terminated alkanethiols on Au were characterized by a combination of electrochemical (LSV, CV, and EIS) and spectroscopic (XPS and SER) techniques. Clear correlations were obtained between the apparent surface pKa values determined by impedimetric titrations and order parameters such as the content of trans conformers in the SAMs. These results contrast with previous studies that exhibit dispersions of up to 6 pH units in the reported pKa values. In addition, we determined that inorganic and organic phosphate species bind specifically to these SAMs mediating adsorption and heterogeneous electron transfer of positively charged macromolecules such as cytochrome c
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Alkanes
|2 NLM
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|a Sulfhydryl Compounds
|2 NLM
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|a Gold
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|a 7440-57-5
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|a Cytochromes c
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|2 NLM
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|a Capdevila, Daiana A
|e verfasserin
|4 aut
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|a de la Llave, Ezequiel
|e verfasserin
|4 aut
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|a Williams, Federico J
|e verfasserin
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|a Murgida, Daniel H
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 29(2013), 17 vom: 30. Apr., Seite 5351-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:29
|g year:2013
|g number:17
|g day:30
|g month:04
|g pages:5351-9
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|u http://dx.doi.org/10.1021/la304730q
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