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Solid-State Ion Channels for Potentiometric Sensing

Authors

  • Gyula Jágerszki,

    1. Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Gellért tér 4, Budapest, 1111 (Hungary), Fax: (+36) 1-463-3408 http://aak.bme.hu/Gyurcsanyi
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  • Ágoston Takács,

    1. Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Gellért tér 4, Budapest, 1111 (Hungary), Fax: (+36) 1-463-3408 http://aak.bme.hu/Gyurcsanyi
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  • Prof. István Bitter,

    1. Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8, 1111 Budapest (Hungary)
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  • Prof. Róbert E. Gyurcsányi

    Corresponding author
    1. Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Gellért tér 4, Budapest, 1111 (Hungary), Fax: (+36) 1-463-3408 http://aak.bme.hu/Gyurcsanyi
    • Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Gellért tér 4, Budapest, 1111 (Hungary), Fax: (+36) 1-463-3408 http://aak.bme.hu/Gyurcsanyi
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  • This work has been supported by the Hungarian Scientific Fund (OTKA NF 69262), T67585, and TÁMOP-4.2.1/B-09/1/KMR-2010-0002. We thank Dr. D. Wegmann for careful reading of the manuscript.

Abstract

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Pretty choosy: The selectivity filters of biological ion channels serve as inspiration for the development of ionophore-modified solid-state nanopores exhibiting extraordinary ion selectivity (see picture). Potentiometric transduction is introduced as a simple means to demonstrate the ion-sensing capability of such nanopores.

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