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Pdop layer exhibiting zwitterionicity: A simple electrochemical interface for governing ion permeability

  • Bo Yu
  • , Jianxi Liu
  • , Shujuan Liu
  • , Feng Zhou
  • CAS - Lanzhou Institute of Chemical Physics

Research output: Contribution to journalArticlepeer-review

281 Scopus citations

Abstract

Polydopamine film which contains amine groups and phenolic hydroxyl groups exhibits fully reversible, pH-switchable permselectivity for both cationic and anionic redox-active probe molecules. At high pH the film has a net negative charge that excludes anions but passes cations; at low pH it is positively charged and excludes cations but passes anions.

Original languageEnglish
Pages (from-to)5900-5902
Number of pages3
JournalChemical Communications
Volume46
Issue number32
DOIs
StatePublished - 28 Aug 2010
Externally publishedYes

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