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Scientific article
English

Ionophore-Based Optical Sensors

Published inAnnual Review of Analytical Chemistry, vol. 7, no. 1, p. 483-512
Publication date2014
Abstract

This review provides an overview of the key aspects of designing ionophore-based optical sensors (IBOS). Exact response functions are developed and compared with a simplified, generalized equation. We also provide a brief introduction into less established but promising working principles, namely dynamic response and exhaustive exchange. Absorbance and fluorescence are the main optical readout strategies used in the evaluation of a sensor response, but they usually require a robust referencing technique for real-world applications. Established referencing schemes using IBOS as well as those from other optical sensors are also discussed. Finally, the power of recently developed photoresponsive ion extraction/release systems is outlined and discussed in view of dynamically switchable IBOS or regenerative exhaustive exchange IBOS.

Keywords
  • Ion sensing
  • PH cross sensitivity
  • Chemical mapping
  • Photoresponsive ion sensors
  • Referenced signals
Citation (ISO format)
MISTLBERGER, Günter, CRESPO PARAVANO, Gaston Adrian, BAKKER, Eric. Ionophore-Based Optical Sensors. In: Annual Review of Analytical Chemistry, 2014, vol. 7, n° 1, p. 483–512. doi: 10.1146/annurev-anchem-071213-020307
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Identifiers
ISSN of the journal1936-1335
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