Measurement of 1268nm Emission for Comparison of Singlet Oxygen (^1Δ_g) Production Efficiency of Various Dyes
スポンサーリンク
概要
- 論文の詳細を見る
Singlet oxygen generation from laser-excited photosensitive dyes was measured directly using a sensitive near-infrared emission spectrometer to monitor the O_2(^1Δ_g)→O_2(^3Σ^-_g) transition at 1268 nm. The emission intensity was proportional to both the laser power and the concentration of the dyes. The singlet oxygen producing ability of the dyes was compared with that of eosin YS as a standard in methanol. The relative efficiencies of singlet oxygen generation were determined for rose bengal, erythrosine B, phloxine B and eosin YS as 2.39,1.73,1.38,1.00,respectively, while uranine showed no emission in this spectral region. Using rose bengal, erythrosine B, phloxine B and eosin YS, the efficiency of singlet oxygen generation correlated with the photobleaching reaction rate of azo-dyes by these dyes, suggesting singlet oxygen to be a species responsible for causing the photobleaching of azo-dyes. The halogen substituent effect on the efficiency of singlet oxygen generation from laser-excited photosensitive dyes was also examined systematically.
- 公益社団法人日本薬学会の論文
- 1996-01-15
著者
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NAGANO Tetsuo
Faculty of Pharmaceutical Science, University of Tokyo
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HIROBE Masaaki
Graduate School of Pharmaceutical Sciences, The University of Tokyo
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HIROBE Masaaki
Faculty of Pharmacuetical Sciences, University of Tokyo
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荒金 久美
Research Laboratory, KOSE Corporation
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荒金 久美
Research Laboratory Kose Corporation
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Hirobe M
Graduate School Of Pharmaceutical Sciences The University Of Tokyo
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Hirobe Masaaki
Faculty Of Pharmaceutical Science University Of Tokyo
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Nagano T
Lab. Of Chemistry And Biology Graduate School Of Pharmaceutical Sciences The Univ. Of Tokyo
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Nagano Tetsuo
Faculty Of Pharmaceutical Science University Of Tokyo
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RYU Akemi
Research Laboratory, KOSE Corporation
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MASUNAGA Takuji
Research Laboratory, KOSE Corporation
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SHINMOTO Koichi
Research Laboratory, KOSE Corporation
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MASHIKO Shinrou
Communications Research Laboratory
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ARAKANE Kumi
KOSE Corporation
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RYU Akemi
KOSE Corporation
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TAKARADA Kenji
KOSE Corporation
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MASUNAGA Takuji
KOSE Corporation
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SHINMOTO Kouichi
KOSE Corporation
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KOBAYASHI Reijirou
KOSE Corporation
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Shinmoto K
Research Laboratory Kose Corporation
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Mashiko S
Communications Research Laboratory
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Masunaga T
Research Laboratory Kose Corporation
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Kobayashi R
Kose Corporation
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