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The influence of the environment on the fluorescence behavior of indicator molecules is investigated. A model is developed to describe the fluorescence decay of indicator molecules in a non-uniform medium. Its consequences for fluorescence decay time based chemical sensors are discussed and verified in two examples, namely a pH sensor using a pyrene compound in hydrogel and a ruthenium complex for oxygen sensing embedded in a polystyrene membrane.
Sonja Draxler andMax E. Lippitsch
"Effect of polymer matrices in lifetime-based sensing", Proc. SPIE 2388, Advances in Fluorescence Sensing Technology II, (8 May 1995); https://doi.org/10.1117/12.208494
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Sonja Draxler, Max E. Lippitsch, "Effect of polymer matrices in lifetime-based sensing," Proc. SPIE 2388, Advances in Fluorescence Sensing Technology II, (8 May 1995); https://doi.org/10.1117/12.208494