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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b02767
|2 doi
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|a pubmed25n0840.xml
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|a (NLM)26313341
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|a DE-627
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|e rakwb
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|a eng
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|a Smith, Scott R
|e verfasserin
|4 aut
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|a Characterization of a Self-Assembled Monolayer of 1-Thio-β-D-Glucose with Electrochemical Surface Enhanced Raman Spectroscopy Using a Nanoparticle Modified Gold Electrode
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|c 2015
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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 08.07.2016
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|a Date Revised 15.09.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Preparation of a nanoparticle modified gold substrate designed for characterization of hydrophilic self-assembled monolayers (SAMs) of 1-thio-β-D-glucose (TG) with electrochemical surface-enhanced Raman spectroscopy (EC-SERS) is presented. Citrate stabilized gold nanoparticles were deposited on a polycrystalline gold electrode and subjected to an electrochemical desorption procedure to completely remove all traces of adsorbed citrate. Complete desorption of citrate was confirmed by recording cyclic voltammetry curves and SERS spectra. The citrate-free nanoparticle modified gold electrode was then incubated in a 1 mg mL(-1) aqueous solution of TG for 16 h prior to being characterized by EC-SERS. The SERS spectra confirmed that at potentials more negative than -0.10 V vs SCE thioglucose forms a monolayer in which the majority of the molecules preserve their lactol ring structure and only a small fraction of molecules appear to be oxidized. At potentials more positive than -0.10 V, the oxidation of TG molecules becomes prominent, and at potentials more positive than 0.20 V vs SCE, the monolayer of TG consists chiefly of oxidized product. The SERS spectra collected in the double layer region suggest the SAM of TG is well hydrated and hence can be used for hydrophilic modifications of a gold surface
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Gold
|2 NLM
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|a 7440-57-5
|2 NLM
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|a 1-thioglucose
|2 NLM
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|a 7534-35-2
|2 NLM
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|a Glucose
|2 NLM
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|a IY9XDZ35W2
|2 NLM
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1 |
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|a Seenath, Ryan
|e verfasserin
|4 aut
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|a Kulak, Monika R
|e verfasserin
|4 aut
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|a Lipkowski, Jacek
|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 31(2015), 36 vom: 15. Sept., Seite 10076-86
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:31
|g year:2015
|g number:36
|g day:15
|g month:09
|g pages:10076-86
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|u http://dx.doi.org/10.1021/acs.langmuir.5b02767
|3 Volltext
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|h 10076-86
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