Fluorescence-lifetime-based sensors for anions

Maria Teichmann; Sonja Draxler; Dietmar Kieslinger; Max E. Lippitsch

doi:10.1117/12.273552

7 May 1997 Fluorescence-lifetime-based sensors for anions

Maria Teichmann, Sonja Draxler, Dietmar Kieslinger, Max E. Lippitsch

Proceedings Volume 2980, Advances in Fluorescence Sensing Technology III; (1997) https://doi.org/10.1117/12.273552
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States

Abstract

Sensing of anions has been investigated using the fluorescence decaytime as the information carrier. The sensing mechanism is based on the coextraction of an anion and a proton, and the presence of a fluorophore with a rather long fluorescence decaytime inside the membrane to act as a pH indicator. The relevant theory is discussed shortly. As an example a sensor for nitrate is shown, and the influence of ionic additives on the working function has been investigated.

Citation Download Citation

Maria Teichmann, Sonja Draxler, Dietmar Kieslinger, and Max E. Lippitsch "Fluorescence-lifetime-based sensors for anions", Proc. SPIE 2980, Advances in Fluorescence Sensing Technology III, (7 May 1997); https://doi.org/10.1117/12.273552

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