Borisov, Sergey M. and Vasylevska, Anna S. and Krause, Christian and Wolfbeis, Otto S. (2006) Composite luminescent material for dual sensing of oxygen and temperature. ADVANCED FUNCTIONAL MATERIALS, 16 (12). pp. 1536-1542. ISSN 1616-301X,
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A novel kind of composite material is presented that contains two indicators incorporated into a single polymer matrix, thus allowing simultaneous determination of oxygen partial pressure and temperature. The temperature-sensitive dye (ruthenium tris-1,10-phenanthroline) was chosen for its highly temperature-dependent luminescence which is the highest among the Run polypyridyl complexes. A fluorinated palladium(II) tetraphenylporphyrin served as the oxygen probe. The indicators were incorporated into either poly(styrene-co-acrylonitrile) microparticles (to sense oxygen) or into poly(acrylonitrile) (for temperature sensing, since this polymer is virtually impermeable to oxygen). The luminescence of both dyes can be separated either spectrally (due to different absorption and emission spectra of the indicators) or via luminescence decay time. The material is suitable for temperature-compensated oxygen sensing, for example, in high-resolution oxygen profiling, and for imaging temperature in the range between 0 and 60 degrees C. This enables one to "see" (rather than to "feel") temperature in this important range. Simultaneous imaging of pressure and temperature also has been achieved. It enables contactless imaging of the two parameters, for example, in wind tunnels. Due to the use of a biocompatible hydrogel matrix, the material conceivably is suited for biomedical applications.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PRESSURE-SENSITIVE PAINT; RESPONSE CHARACTERISTICS; OPTICAL SENSORS; METAL-COMPLEXES; POLYMER-FILMS; THIN-FILM; LIFETIME; DEPENDENCE; BIOSENSORS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Feb 2021 07:37 |
| Last Modified: | 08 Feb 2021 07:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/34176 |
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