The influence of excitation radiation parameters on photosensitized generation of singlet oxygen in water

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• 作者：A. D. Il’ina ; A. L. Glazov ; I. V. Semenova ; O. S. Vasyutinskii
• 刊名：Optics and Spectroscopy
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：120
• 期：6
• 页码：876-880
• 全文大小：591 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Optical Spectroscopy and Ultrafast Optics
  Russian Library of Science
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1562-6911
• 卷排序：120

文摘

Photosensitized generation of singlet oxygen with the aid of Radahlorin® photosensitizer has been investigated. The dependences of the intensity of singlet oxygen phosphorescence and photosensitizer fluorescence on the excitation radiation wavelength in the range of 350–440 nm and on the irradiation dose have been obtained. The dependence of the ratio of the sensitizer fluorescence intensity at about 670 nm to the singlet oxygen phosphorescence intensity at a wavelength of 1270 nm on the excitation radiation wavelength is found to be nonmonotonic and have a minimum near the center of the absorption band on its red wing. The results obtained can be used to monitor the singlet oxygen concentration in solutions.Original Russian Text © A.D. Il’ina, A.L. Glazov, I.V. Semenova, O.S. Vasyutinskii, 2016, published in Optika i Spektroskopiya, 2016, Vol. 120, No. 6, pp. 935–940.