Article ID Journal Published Year Pages File Type
219525 Journal of Electroanalytical Chemistry 2011 5 Pages PDF
Abstract

The formation and characterization of Selenocysteine (SeCys) Self-assembly monolayers (SAMs) was studied. It was found that SeCys SAMs revealed ion-gate response for the electron-transfer of Fe(CN)64-/3- probe ion in the presence of Cu2+ or Pb2+. The ion-gate response of SeCys SAMs resulted from the fact that the interaction between SeCys SAMs and Cu2+ (Pb2+), including the coordination and the electrostatic interaction, changed the conformation of SeCys SAMs.

Graphical abstractSelenocysteine Self-assembly monolayers (SeCys SAMs) revealed ion-gate response for the electron-transfer of Fe(CN)64-/3- probe ion in the presence of Cu2+ or Pb2+ ions. It resulted from the conformation change in SeCys SAMs caused by the coordination and the electrostatic interaction.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Selenocysteine self-assembly monolayers (SeCys SAMs) formed at Au electrode. ► SeCys SAMs revealed ion-gate response for Fe(CN)64-/3- in the presence of Cu2+ or Pb2+. ► The ion-gate response resulted from the conformational change in SeCys SAMs. ► Cu2+ (Pb2+) could interact with SeCys SAMs by electrostatic attraction and coordination.

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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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