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Potentiometric Detection of K + Ions Using Gramicidin‐Ionophore/Lipid Bilayer Assembly on Polyaniline Electrode
Author(s) -
Larrieux Jeannine,
Abrou Osvaldo,
Levon Kalle
Publication year - 2011
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201150602
Subject(s) - polyaniline , potentiometric titration , ionophore , electrode , gramicidin , materials science , bilayer , polyaniline nanofibers , lipid bilayer , potentiometric sensor , chemical engineering , analytical chemistry (journal) , nanotechnology , inorganic chemistry , chemistry , membrane , polymer , polymerization , chromatography , composite material , calcium , biochemistry , engineering , metallurgy
Summary: Organic electronics have their advantage over traditional silicon or inorganic electrodes in their easy processing and flexibility. For instance, polyaniline has shown to be promising electrode material for various sensing opportunities including as a use of pH‐meter. As the ion‐to‐electrode transduction may be optimal in these organic materials with high surface area and controllable electric double layer, selectivity has often been approached with the use of ionophores. We have inserted a gramicidin ionophore in a lipid bilayer assembled on polyaniline surface and measured successfully K + ion concentration potentiometrically.