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Proceedings Paper

Luminescent chemical and biological sensors based on the structural integration of an OLED excitation source with a sensing component
Author(s): Bhaskar J. Choudhury; Ruth Shinar; Joseph Shinar
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Paper Abstract

A new platform for luminescent chemical and biological sensors, integrating the excitation source, an OLED, with the sensing component, is described. The utility of the platform is demonstrated for an oxygen sensor and its potential is demonstrated for antibody-antigen immunoassays. The oxygen sensor is operable in two modes, i.e., photoluminescence (PL) intensity mode and lifetime mode, where changes in the PL intensity and lifetime, respectively, are correlated with the oxygen level. In the lifetime mode, the need for sensor calibration, which remains a challenge in real-world sensing applications, is eliminated. Attributes and issues related to sensor performance, including design and stability, are discussed.

Paper Details

Date Published: 16 February 2004
PDF: 9 pages
Proc. SPIE 5214, Organic Light-Emitting Materials and Devices VII, (16 February 2004); doi: 10.1117/12.515120
Show Author Affiliations
Bhaskar J. Choudhury, Iowa State Univ. (United States)
Ruth Shinar, Iowa State Univ. (United States)
Joseph Shinar, Iowa State Univ. (United States)

Published in SPIE Proceedings Vol. 5214:
Organic Light-Emitting Materials and Devices VII
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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