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

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.

[1]  K. Eichhorn,et al.  Chemical and structural changes in a pH-responsive mixed polyelectrolyte brush studied by infrared ellipsometry. , 2009, Langmuir : the ACS journal of surfaces and colloids.

[2]  J. Fritz,et al.  Polyelectrolyte-coated unilamellar nanometer-sized magnetic liposomes. , 2009, Langmuir : the ACS journal of surfaces and colloids.

[3]  Royce W Murray,et al.  Nanoelectrochemistry: metal nanoparticles, nanoelectrodes, and nanopores. , 2008, Chemical reviews.

[4]  Evgeny Katz,et al.  Polymer Brush-Modified Electrode with Switchable and Tunable Redox Activity for Bioelectronic Applications , 2008 .

[5]  Wei-min Liu,et al.  Synthesis and properties of polymer brushes bearing ionic liquid moieties , 2007 .

[6]  Haeshin Lee,et al.  Mussel-Inspired Surface Chemistry for Multifunctional Coatings , 2007, Science.

[7]  E. Katz,et al.  An electrochemical gate based on a stimuli-responsive membrane associated with an electrode surface. , 2007, The journal of physical chemistry. B.

[8]  P. Mussini,et al.  Novel Amphoteric Cystine-Based Poly(amidoamine)s Responsive to Redox Stimuli , 2007 .

[9]  Robert L. Clark,et al.  Micro-cantilevers with end-grafted stimulus-responsive polymer brushes for actuation and sensing , 2006 .

[10]  Wilhelm T. S. Huck,et al.  Switching the Properties of Polyelectrolyte Brushes via “Hydrophobic Collapse” , 2005 .

[11]  Wilhelm T S Huck,et al.  Locking and unlocking of polyelectrolyte brushes: toward the fabrication of chemically controlled nanoactuators. , 2005, Angewandte Chemie.

[12]  J. Manzanares,et al.  Electrochemical impedance spectroscopy of polyelectrolyte multilayer modified gold electrodes: influence of supporting electrolyte and temperature. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[13]  G. Vancso,et al.  Electrochemistry of surface-grafted stimulus-responsive monolayers of poly(ferrocenyldimethylsilane) on gold. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[14]  L. Ionov,et al.  Inverse and reversible switching gradient surfaces from mixed polyelectrolyte brushes. , 2004, Langmuir : the ACS journal of surfaces and colloids.

[15]  Itamar Willner,et al.  Magnetoswitchable controlled hydrophilicity/hydrophobicity of electrode surfaces using alkyl-chain-functionalized magnetic particles: application for switchable electrochemistry. , 2004, Langmuir : the ACS journal of surfaces and colloids.

[16]  F. Zhou,et al.  Surface-confined radical chain transfer: The intermediate reaction for chemically attaching polymer films on porous silica for chromatographic application , 2004 .

[17]  Jochen S. Gutmann,et al.  Synthesis and Characterization of Polymer Brushes on Micromechanical Cantilevers , 2004 .

[18]  Qiang Zhao,et al.  Electrochemical investigation of dopamine at the water/1,2-dichloroethane interface. , 2004, Analytical chemistry.

[19]  Y. Chujo,et al.  Synthesis and Properties of a Novel Through-Space Conjugated Polymer with [2.2]Paracyclophane and Ferrocene in the Main Chain , 2003 .

[20]  Uri Raviv,et al.  Lubrication by charged polymers , 2003, Nature.

[21]  Frank Simon,et al.  Reversible tuning of wetting behavior of polymer surface with responsive polymer brushes , 2003 .

[22]  W. Fawcett,et al.  Electrochemical Characterization of the Alkaneselenol-Based SAMs on Au(111) Single Crystal Electrode , 2002 .

[23]  T. Okano,et al.  Intelligent thermoresponsive polymeric stationary phases for aqueous chromatography of biological compounds , 2002 .

[24]  Nancy Allbritton,et al.  Surface modification of poly(dimethylsiloxane) microfluidic devices by ultraviolet polymer grafting. , 2002, Analytical chemistry.

[25]  Teruo Okano,et al.  Pulsatile drug release control using hydrogels. , 2002, Advanced drug delivery reviews.

[26]  I. Willner,et al.  Layered Polyelectrolyte Films on Au Electrodes: Characterization of Electron-Transfer Features at the Charged Polymer Interface and Application for Selective Redox Reactions , 2001 .

[27]  Liu,et al.  Intramolecular electronic interactions in conjugated ferrocene-pi-extended-tetrathiafulvalene donor-pi-donor molecular hybrids , 2000, The Journal of organic chemistry.

[28]  R. Crooks,et al.  Chemically grafted polymeric filters for chemical sensors : Hyperbranched poly(acrylic acid) films incorporating β-cyclodextrin receptors and amine-functionalized filter layers , 1999 .

[29]  R. Crooks,et al.  PH-SWITCHABLE, ULTRATHIN PERMSELECTIVE MEMBRANES PREPARED FROM MULTILAYER POLYMER COMPOSITES , 1997 .

[30]  F. Anson,et al.  ASSOCIATION OF ELECTROACTIVE COUNTERIONS WITH POLYELECTROLYTES. 6. ELECTROSTATIC AND COORDINATIVE BINDING OF RU3+/2+ CENTERS TO A COPOLYMER OF ACRYLIC ACID AND ACRYLONITRILE , 1996 .

[31]  I. Willner,et al.  NAD(+)/NADH-sensitive quantum dots: applications to probe NAD(+)-dependent enzymes and to sense the RDX explosive. , 2009, Nano letters.

[32]  Evgeny Katz,et al.  Chemical gating with nanostructured responsive polymer brushes: mixed brush versus homopolymer brush. , 2008, ACS nano.

[33]  Feng Zhou,et al.  Probing the responsive behavior of polyelectrolyte brushes using electrochemical impedance spectroscopy. , 2007, Analytical chemistry.