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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1021/la1035757
|2 doi
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|a pubmed24n0680.xml
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|a (NLM)21117684
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|a DE-627
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|e rakwb
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|a eng
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|a Tanaka, Mutsuo
|e verfasserin
|4 aut
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|a Surface modification of GC and HOPG with diazonium, amine, azide, and olefin derivatives
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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 12.04.2011
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|a Date Revised 16.11.2017
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Surface modification of glassy carbon (GC) and highly oriented pyrolytic graphite (HOPG) was carried out with diazonium, amine, azide, and olefin derivatives bearing ferrocene as an electroactive moiety. Features of the modified surfaces were evaluated by surface concentrations of immobilized molecule, blocking effect of the modified surface against redox reaction, and surface observation using cyclic voltammetry and electrochemical scanning tunneling microscope (EC-STM). The measurement of surface concentrations of immobilized molecule revealed the following three aspects: (i) Diazonium and olefin derivatives could modify substrates with the dense-monolayer concentration. (ii) The surface concentration of immobilized amine derivative did not reach to the dense-monolayer concentration reflecting their low reactivity. (iii) The surface modification with the dense-monolayer concentration was also possible with azide derivative, but the modified surface contained some oligomers produced by the photoreaction of azides. Besides, the blocking effect against redox reaction was observed for GC modified with diazonium derivative and for HOPG modified with diazonium and azide derivatives, suggesting fabrication of a densely modified surface. Finally, the surface observation for HOPG modified with diazonium derivative by EC-STM showed a typical monolayer structure, in which the ferrocene moieties were packed densely at random. On the basis of those results, it was demonstrated that surface modification of carbon substrates with diazonium could afford a dense monolayer similar to the self-assembled monolayer (SAM) formation
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|a Journal Article
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|a Alkenes
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|a Amines
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|a Azides
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|a Diazonium Compounds
|2 NLM
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|a Ferrous Compounds
|2 NLM
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|a Metallocenes
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|a pyrolytic carbon
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|a Carbon
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|a 7440-44-0
|2 NLM
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|a Graphite
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|a 7782-42-5
|2 NLM
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|a ferrocene
|2 NLM
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|a U96PKG90JQ
|2 NLM
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|a Sawaguchi, Takahiro
|e verfasserin
|4 aut
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|a Sato, Yukari
|e verfasserin
|4 aut
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|a Yoshioka, Kyoko
|e verfasserin
|4 aut
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| 700 |
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|a Niwa, Osamu
|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), 1 vom: 04. Jan., Seite 170-8
|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:1
|g day:04
|g month:01
|g pages:170-8
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|u http://dx.doi.org/10.1021/la1035757
|3 Volltext
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