Langmuir · 2002 · 29 citations · 37 references
Natural SciencesChemistryMaterials ScienceElectroanalytical MethodsSurface ChemistrySurface ScienceMembrane Self-assemblySurface AdsorptionSurface Functionalization Of NanomaterialsSurface ModificationSurface ReactionsSurface ReactivityElectron TransferGold ElectrodesGold Surface FunctionalizationModified ElectrodesMonolayer AdsorptionQuartz Crystal MicrobalanceSelf-assembled Monolayer ElectrodesThiol-based Surface Chemistry
Binary self-assembled monolayers (SAMs) were prepared on gold surfaces by use of a viologen, N -methyl- N ‘-(10-mercaptodecyl)-4,4‘-bipyridinium bishexafluorophosphate (V 10 SH) and a phospholipid, dipalmitoylphosphatidylthioethanol (DPPTE). Quartz crystal microbalance (QCM) measurements indicated a similar adsorption trend for the V 10 SH and DPPTE assembling on the gold surface. Well reversible redox waves of V 10 SH and Fe(CN) 6 3-/4- were recorded for the electrodes modified by either pure V 10 SH SAM or binary SAMs prepared in mixed solutions of V 10 SH and DPPTE with molar ratios below 1:5. Chronocoulomograms of the SAM-modified electrodes indicated that V 10 SH acted as an electron-transfer mediator for the Fe(CN) 6 3-/4- ions in the electrolyte solution to “gated” access to the electrode surface across the DPPTE monolayer.
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Bioelectrochemistry at metal∣water interfaces
Rolando Guidelli, Giovanni Aloisi, Lucia Becucci et al. · Journal of Electroanalytical Chemistry · 2001 · 155 citations
Natural Sciences, Chemical Engineering, Electrochemistry +11
Electron transfer into self-assembling monolayers on gold electrodes
K. A. Bunding Lee · Langmuir · 1990 · 121 citations