Electrochemical characteristic of Selenocysteine Self-assembly monolayers at Au electrode

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.

Selenocysteine 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 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.