QUENCHING OF PHOTOEXCITED 4,4'-DICARBOXY-2,2'-BIPYRIDINEBIS(2,2'-BIPYRIDINE)RUTHENIUM(II) BY OXYGEN IN AQUEOUS-SOLUTION AND IN SILK FIBROIN MEMBRANE

被引：15

作者：

KANEKO, M ^{[1
]}

IWAHATA, S ^{[1
]}

ASAKURA, T ^{[1
]}

机构：

[1] TOKYO UNIV AGR & TECHNOL, KOGANEI, TOKYO 184, JAPAN

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1992年 / 55卷 / 04期

关键词：

D O I：

10.1111/j.1751-1097.1992.tb04270.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Photoluminescence and quenching of 4,4'-dicarboxy-2,2'-bipyridinebis(2,2'-bipyridine)-ruthenium(II) complex (Ru(DCbpy)(bpy)2(2+)) in an aqueous solution as well as in a silk fibroin membrane were studied. Emission quenching by oxygen in an aqueous solution showed a linear relationship with respect to oxygen concentration. When the complex was incorporated into a silk fibroin membrane by adsorption from an aqueous solution into a preformed membrane, the photo-excited state of the complex was not quenched by oxygen in an aqueous phase. However, when the complex was incorporated into a silk fibroin membrane by casting a mixture of the complex and silk fibroin, the photoexcited complex was quenched by oxygen in an aqueous phase. In this case the Stern-Volmer plots showed a downward-deviating curve indicating heterogeneity of the probe site. Emission intensity decreased with an increase of the water content in the silk fibroin membrane.

引用

页码：505 / 509

页数：5

共 29 条

[1] AN ESR STUDY OF SPIN-LABELED SILK FIBROIN MEMBRANES AND SPIN-LABELED GLUCOSE-OXIDASE IMMOBILIZED IN SILK FIBROIN MEMBRANES
ASAKURA, T
YOSHIMIZU, H
KAKIZAKI, M
[J]. BIOTECHNOLOGY AND BIOENGINEERING, 1990, 35 (05) : 511 - 517
[2] NMR OF SILK FIBROIN .3. ASSIGNMENT OF CARBONYL CARBON RESONANCES AND THEIR DEPENDENCE ON SEQUENCE AND CONFORMATION IN BOMBYX-MORI SILK FIBROIN USING SELECTIVE ISOTOPIC LABELING
ASAKURA, T
WATANABE, Y
ITOH, T
[J]. MACROMOLECULES, 1984, 17 (11) : 2421 - 2426
[3] NMR OF SILK FIBROIN .2. C-13 NMR-STUDY OF THE CHAIN DYNAMICS AND SOLUTION STRUCTURE OF BOMBYX-MORI SILK FIBROIN
ASAKURA, T
WATANABE, Y
UCHIDA, A
MINAGAWA, H
[J]. MACROMOLECULES, 1984, 17 (05) : 1075 - 1081
[4] PHOTOPHYSICS AND PHOTOCHEMISTRY OF OXYGEN SENSORS BASED ON LUMINESCENT TRANSITION-METAL COMPLEXES
CARRAWAY, ER
DEMAS, JN
DEGRAFF, BA
BACON, JR
[J]. ANALYTICAL CHEMISTRY, 1991, 63 (04) : 337 - 342
[5] LUMINESCENCE QUENCHING MECHANISM FOR MICROHETEROGENEOUS SYSTEMS
CARRAWAY, ER
DEMAS, JN
DEGRAFF, BA
[J]. ANALYTICAL CHEMISTRY, 1991, 63 (04) : 332 - 336
[6] LIFETIMES, SPECTRA, AND QUENCHING OF THE EXCITED-STATES OF POLYPYRIDINE COMPLEXES OF IRON(II), RUTHENIUM(II), AND OSMIUM(II)
CREUTZ, C
CHOU, M
NETZEL, TL
OKUMURA, M
SUTIN, N
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (04) : 1309 - 1319
[7] WATER SORPTION, MEMBRANE-POTENTIALS, AND ION PERMEABILITY OF STYRENE-GRAFTED BOMBYX-MORI SILK FIBROIN MEMBRANE
DEMURA, M
KITAMURA, A
SHIBAMOTO, A
ASAKURA, T
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 1988, 36 (03) : 535 - 543
[8] EXCITED-STATE PROTON-TRANSFER OF A METAL-COMPLEX - DETERMINATION OF ACID DISSOCIATION-CONSTANT FOR A METAL-TO-LIGAND CHARGE-TRANSFER STATE OF A RUTHENIUM(II) COMPLEX
GIORDANO, PJ
BOCK, CR
WRIGHTON, MS
INTERRANTE, LV
WILLIAMS, RFX
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (09) : 3187 - 3189
[9] Graetzel M, 1983, ENERGY RESOURCES PHO, P71
[10] RU(II) POLYPYRIDINE COMPLEXES - PHOTOPHYSICS, PHOTOCHEMISTRY, ELECTROCHEMISTRY, AND CHEMI-LUMINESCENCE
JURIS, A
BALZANI, V
BARIGELLETTI, F
CAMPAGNA, S
BELSER, P
VONZELEWSKY, A
[J]. COORDINATION CHEMISTRY REVIEWS, 1988, 84 : 85 - 277

← 1 2 3 →