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Titolo:
Interaction between immobilized DNA and tris(bpy) osmium(II/III) complex
Autore:
Motonaka, J; Mishima, Y; Maruyama, K; Minagawa, K; Ikeda, S;
Indirizzi:
Univ Tokushima, Fac Engn, Dept Chem Sci & Technol, Tokushima 7708506, Japan Univ Tokushima Tokushima Japan 7708506 Technol, Tokushima 7708506, Japan
Titolo Testata:
SENSORS AND ACTUATORS B-CHEMICAL
fascicolo: 1-3, volume: 66, anno: 2000,
pagine: 234 - 236
SICI:
0925-4005(20000725)66:1-3<234:IBIDAT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLYMERS;
Keywords:
interaction study; immobilized DNA electrode; osmium complex;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
7
Recensione:
Indirizzi per estratti:
Indirizzo: Motonaka, J Univ Tokushima, Fac Engn, Dept Chem Sci & Technol, Minamijosanjima 2-1, Tokushima 7708506, Japan Univ Tokushima Minamijosanjima 2-1 Tokushima Japan 7708506 an
Citazione:
J. Motonaka et al., "Interaction between immobilized DNA and tris(bpy) osmium(II/III) complex", SENS ACTU-B, 66(1-3), 2000, pp. 234-236

Abstract

The interaction between a tris(bipyridyl)osmium (II/III) ion (osmium complex) and immobilized DNA was studied. The amount of immobilized DNA on the prepared carbon paste electrode (surface area; 0.66-2.37 X 10(-2) cm(2)) was0.26-2.78 X 10(-4) mol cm(-2) Compared with the bare porous electrode (584mV), the equilibrium potential of osmium complex with the immobilized single strand DNA electrode shifted to the higher side (650 mV). On the other hand, the equilibrium potential of one with the immobilized double strand DNA (dsDNA) electrode shifted to the lower side (542 mV). These results suggest that the osmium complex interacted specifically with dsDNA. The amount of the osmium complex on immobilized dsDNA electrodes was determined and it gave a good linear plot in the concentration range of 0.5 to 4 mM. (C) 2000Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 00:21:55