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Highly stable ECL active films formed by the electrografting of a diazotized ruthenium complex generated in situ from the amine

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dc.contributor.authorPiper, D.J.E.
dc.contributor.authorBarbante, G.J.
dc.contributor.authorBrack, N.
dc.contributor.authorPigram, P.J.
dc.contributor.authorHogan, C.F.
dc.date.issued2011
dc.description.abstractThe electrodeposition of the electrochemiluminescent (ECL) ruthenium complex, bis(2,2'-bipyridyl)(4'-(4-aminophenyl)-2,2'- bipyridyl)ruthenium(II), [Ru(bpy)2(apb)]2+, via the in situ formation of a diazonium species from aqueous media is reported. Surface characterization undertaken using X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) determined that the layer is bound to the substrate via azo bonding. The layer displays good ECL activity and is stable over a long period of time. The excellent potential of this system for ECL sensing applications is demonstrated using the well-known ECL coreactant 2-(dibutylamino)ethanol (DBAE) as a model analyte, which can be detected to a level of 10 nM with a linear range between 10-8 and 10-4 M.
dc.identifier.citationLangmuir, 2011; 27(1):474-480
dc.identifier.doi10.1021/la104117h
dc.identifier.issn0743-7463
dc.identifier.issn1520-5827
dc.identifier.urihttps://hdl.handle.net/11541.2/122561
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.rightsCopyright 2010 American Chemical Society
dc.source.urihttp://dx.doi.org/10.1021/la104117h
dc.subjectanalytes
dc.subjectaqueous media
dc.subjectbipyridyl
dc.subjectelectrochemiluminescent
dc.subjectelectrografting
dc.subjectin-situ
dc.subjectin-situ formations
dc.subjectlinear range
dc.subjectru(bpy)
dc.subjectruthenium complexes
dc.subjectsensing applications
dc.subjectsurface characterization
dc.subjecttime of flight secondary ion mass spectrometry
dc.titleHighly stable ECL active films formed by the electrografting of a diazotized ruthenium complex generated in situ from the amine
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9916101703501831

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