Composite luminescent material for dual sensing of oxygen and temperature
Composite luminescent material for dual sensing of oxygen and temperature
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DOI：
10.1002/adfm.200500778
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发表时间：
2006-08-04
影响因子：
19
通讯作者：
Wolfbeis, Otto S.
中科院分区：
文献类型：
--
作者：
Borisov, Sergey M.;Vasylevska, Anna S.;Wolfbeis, Otto S.
提出了一种新型的复合材料，它包含两个指示剂纳入一个单一的聚合物基体，从而允许同时测定氧分压和温度。温度敏感的染料（钌三-1，10-菲咯啉）被选为其高度依赖于温度的发光，这是最高的运行多吡啶配合物。氟化钯（II）四苯基卟啉作为氧探针。将指示剂结合到聚（苯乙烯-共-丙烯腈）微粒（以感测氧）或聚（丙烯腈）（用于温度感测，因为这种聚合物几乎不透氧）中。两种染料的发光可以通过光谱（由于指示剂的不同吸收和发射光谱）或通过发光衰减时间来分离。该材料适用于温度补偿氧传感，例如，在高分辨率氧分布中，并且适用于在0和60摄氏度之间的范围内的成像温度。这使人们能够“看到”（而不是“感觉”）在这个重要范围内的温度。同时成像的压力和温度也已实现。它可以实现两个参数的非接触式成像，例如在风洞中。由于使用生物相容性水凝胶基质，该材料可以想象地适用于生物医学应用。
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.