Pdop layer exhibiting zwitterionicity: a simple electrochemical interface for governing ion permeability
Chemical Communications2010Vol. 46(32), pp. 5900–5902
Citations Over TimeTop 10% of 2010 papers
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.
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