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Composite luminescent material for dual sensing of oxygen and temperature

机译：用于氧和温度双重感应的复合发光材料

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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.
机译：提出了一种新型的复合材料，该复合材料将两个指示剂掺入单个聚合物基质中，因此可以同时测定氧分压和温度。选择了对温度敏感的染料（tris-1,10-菲咯啉钌），因为它具有高度的温度依赖性发光，这在Run聚吡啶配合物中是最高的。氟化钯（II）四苯基卟啉用作氧探针。将指示剂掺入聚（苯乙烯-共-丙烯腈）微粒中（用于感测氧）或掺入聚（丙烯腈）中（用于温度感测，因为该聚合物实际上不透氧）。两种染料的发光可以通过光谱分离（由于指示剂的吸收光谱和发射光谱不同）或通过发光衰减时间进行分离。该材料适用于温度补偿的氧气感测，例如高分辨率氧气轮廓分析，以及成像温度在0到60摄氏度之间的图像。这使人们可以“看到”（而不是“感觉”）温度在这个重要范围内。还实现了压力和温度的同时成像。它可以实现两个参数的非接触式成像，例如在风洞中。由于使用了生物相容性水凝胶基质，因此该材料可适用于生物医学应用。

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