書誌事項
- タイトル別名
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- Quenching of Excited Triplet State by Oxygen in Aqueous Saccharide Solutions(Papers presented at the 53rd Annual Meeting)
- 糖水溶液中の励起3重項状態の酸素による消光
- トウスイ ヨウエキチュウ ノ レイキ 3ジュウコウ ジョウタイ ノ サンソ ニ ヨル ショウコウ
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抄録
By means of fluorescence correlation spectroscopy (FCS), a decay component faster than the translational diffusion of the fluorescent probe molecule was observed in highly concentrated aqueous solutions of saccharides. We concluded that the fast decay is due to the increased lifetime of the excited triplet (T_1) state of the probe molecule. The lifetime of T_1 state was too short to be observed by FCS in aquous solution, because of the quenching by oxygen molecules (O_2). With high concentration of saccharides, the quenching is reduced because the encounter of the O_2 molecule with the probe molecule is interrupted. Time-resolved transient absorption spectroscopy was carried out and it was confirmed that T_1 state lifetime lengthened in highly concentrated viscous saccharide solutions. It was concluded that either the concentration or translational diffusion rate of oxygen molecule are reduced.
収録刊行物
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- 低温生物工学会誌
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低温生物工学会誌 53 (2), 129-132, 2007
低温生物工学会
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詳細情報 詳細情報について
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- CRID
- 1390001205087229184
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- NII論文ID
- 110006783058
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- NII書誌ID
- AN10448734
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- ISSN
- 24241555
- 13407902
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- NDL書誌ID
- 9402432
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可