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No.42 (1986/10) >

Title :Quenching of pyrene and phenothiazine fluorescence by methylviologen in dihexadecylphosphate vesicle solutions
Title alternative :ジヘキサデシルホスフェイトベシクル溶液におけるメチルビオローゲンによるピレンおよびフェノチアジン蛍光の消光
Authors :Kinjo, Akio
Sawada, Shoji
Uchihara, Toshio
Authors alternative :金城, 昭夫
佐和田, 正二
宇地原, 敏夫
Issue Date :Oct-1986
Abstract :Quenching of pyrene and phenothiazine fluorescence by methylviologen was studied in dihexadecylphosphate vesicle solutions. Methylviologen in the outer aqueous phase of the vesicle quenched the fluorescence more strongly than that in the inner aqueous phase. The Stern-Volmer quenching constants of pyrene fluorescence were determined to be 7.3 x 10^4 and 1.1 x 10^4 M^<-1> for the solutions containing methylviologen in the outer and inner aqueous phase, respectively. The difference in the quenching constants was then utilized to estimate the transmembrane transport of methylviologen from the inner aqueous phase to the outer one. No transmembrane transport occurred while the solution was kept at the room temperature for a week. And further, the leakage of methylviologen through the vesicle bilayer was not observed even when the solution was submitted to the freezing-thawing-sonication treatment.
Type Local :紀要論文
ISSN :0286-9640
Publisher :琉球大学理学部
URI :http://hdl.handle.net/20.500.12000/15148
Citation :琉球大学理学部紀要 = Bulletin of the College of Science. University of the Ryukyus no.42 p.65 -77
Appears in Collections:No.42 (1986/10)

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