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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la8007816
|2 doi
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|a pubmed25n0603.xml
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|a (DE-627)NLM180878980
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|a (NLM)18624419
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Brooksby, Paula A
|e verfasserin
|4 aut
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|a Electrochemistry of catechol terminated monolayers with Cu(II), Ni(II) and Fe(III) cations
|b a model for the marine adhesive interface
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|c 2008
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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
|b cr
|2 rdacarrier
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|a Date Completed 17.09.2008
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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 redox electrochemistry of hydroquinone and Cu2+-, Ni2+-, and Fe3+-hydroquinone complexes immobilized at the SAM interface has been studied in aqueous solutions with pH 5 to 12 using cyclic voltammetry. Self-assembled monolayers were constructed with terminal hydroquinone residues designed to model marine adhesive proteins that use the DOPA (3,4-dihydroxyphenylalanine) moiety. Coordination of metal to the hydroquinone group results in a shift to the ligand oxidation potential, with the value for Delta E p,a dependent on the solution pH and identity of the metal. Cu2+ shifts the hydroquinone oxidation by -285 mV (pH 8.8), and Ni2+ by -194 mV (pH 9.16). The hydroquinone oxidation was shifted by -440 mV at pH 5 for Fe3+ solutions examined up to pH 7. By contrast, reduction of the quinone is unperturbed by the presence of Cu2+, Ni2+, and Fe3+ ions. Implications of these results to the mechanism of marine adhesion are discussed
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Adhesives
|2 NLM
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|a Alkanes
|2 NLM
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|a Catechols
|2 NLM
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|a Cations
|2 NLM
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|a Sulfhydryl Compounds
|2 NLM
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|a Copper
|2 NLM
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| 650 |
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|a 789U1901C5
|2 NLM
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|a Nickel
|2 NLM
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| 650 |
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|a 7OV03QG267
|2 NLM
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|a Iron
|2 NLM
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| 650 |
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|a E1UOL152H7
|2 NLM
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|a catechol
|2 NLM
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| 650 |
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|a LF3AJ089DQ
|2 NLM
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1 |
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|a Schiel, David R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Abell, Andrew D
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 24(2008), 16 vom: 19. Aug., Seite 9074-81
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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| 773 |
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|g volume:24
|g year:2008
|g number:16
|g day:19
|g month:08
|g pages:9074-81
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|u http://dx.doi.org/10.1021/la8007816
|3 Volltext
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