DIRECT SPECTROSCOPIC OBSERVATION OF SINGLET OXYGEN EMISSION AT 1268-NM EXCITED BY SENSITIZING DYES OF BIOLOGICAL INTEREST IN LIQUID SOLUTION
DIRECT SPECTROSCOPIC OBSERVATION OF SINGLET OXYGEN EMISSION AT 1268-NM EXCITED BY SENSITIZING DYES OF BIOLOGICAL INTEREST IN LIQUID SOLUTION
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DOI：
10.1073/pnas.76.12.6047
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发表时间：
1979-01-01
影响因子：
11.1
通讯作者：
KASHA, M
中科院分区：
文献类型：
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作者：
KHAN, AU;KASHA, M
直接观察1 Δ g → 1268-nm的染料光敏化发射，3.报道了室温下液体溶液中分子O2的∑ g跃迁。单线态氧在氟碳溶剂中被全氟二苯甲酮的紫外光激发敏化，在四氯化碳中被3，4-苯并芘和血卟啉敏化，在水中被亚甲基蓝敏化。还报道了一个非常敏感的近红外分光光度计，使用热电冷却硫化铅检测器，优化的光学，和boxcar积分器作为数据处理器的发展。
The direct observation of dye-photosensitized 1268-nm emission of the 1.DELTA.g .fwdarw. 3.SIGMA.g transition of molecular O2 in liquid solution at room temperature is reported. Singlet oxygen was photosensitized by UV excitation of perfluorobenzophenone in fluorocarbon solvent, by 3,4-benzpyrene and hematoporphyrin in CCl4, and by methylene blue in water. Also reported is the development of an extremely sensitive near-IR spectrophotometer that uses a thermoelectrically cooled lead sulfide detector, optimized optics, and a boxcar integrator as a data processor.