Artículo
Battaglini, F.; Bartlett, P.N.; Wang, J.H. "Covalent attachment of osmium complexes to glucose oxidase and the application off the resulting modified enzyme in an enzyme switch responsive to glucose" (2000) Analytical Chemistry. 72(3):502-509
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Abstract:
Pyridine-based osmium complexes bearing either a carboxylate or aldehyde group were covalently attached to glucose oxidase and were shown to work as mediators for the reoxidation of the enzyme. For the complex containing the carboxylate group, the binding was made through carbodiimide coupling to the amine residues in the protein. For the complex containing the aldehyde group, the reductive coupling was carried out by condensation with the amino groups on the protein in the presence of sodium cyanoborohydride. Electrochemical studies show evidence for both intramolecular and intermolecular redox mediation for the electrochemical reoxidation of the modified glucose oxidases in the presence of glucose. The modified enzymes adsorbed on glassy carbon and platinum show different electrochemical responses for the two electrode materials, suggesting that orientation of the adsorbed enzyme is induced due to the interaction of the osmium complex with the different surfaces. Construction of enzyme switches based on these modified enzymes was carried out, and their responses were compared with those obtained using native glucose oxidase and a soluble redox mediator. © 2000 American Chemical Society.
Registro:
| Documento: | Artículo |
| Título: | Covalent attachment of osmium complexes to glucose oxidase and the application off the resulting modified enzyme in an enzyme switch responsive to glucose |
| Autor: | Battaglini, F.; Bartlett, P.N.; Wang, J.H. |
| Filiación: | INQUIMAE, Departamento de Química Inorgánica, Universldad de Buenos Aires, 1428 Buenos Aires, Argentina Department of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom |
| Palabras clave: | glucose; glucose oxidase; osmium derivative; article; Aspergillus niger; chemistry; electrochemistry; electron transport; enzyme specificity; enzymology; metabolism; semiconductor; Aspergillus niger; Electrochemistry; Electron Transport; Glucose; Glucose Oxidase; Osmium Compounds; Substrate Specificity; Transistors |
| Año: | 2000 |
| Volumen: | 72 |
| Número: | 3 |
| Página de inicio: | 502 |
| Página de fin: | 509 |
| Título revista: | Analytical Chemistry |
| Título revista abreviado: | Anal. Chem. |
| ISSN: | 00032700 |
| CODEN: | ANCHA |
| CAS: | Glucose Oxidase, EC 1.1.3.4; Glucose, 50-99-7; Osmium Compounds |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00032700_v72_n3_p502_Battaglini |
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Citas:
---------- APA ----------
Battaglini, F., Bartlett, P.N. & Wang, J.H. (2000) . Covalent attachment of osmium complexes to glucose oxidase and the application off the resulting modified enzyme in an enzyme switch responsive to glucose. Analytical Chemistry, 72(3), 502-509.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00032700_v72_n3_p502_Battaglini [ ]
---------- CHICAGO ----------
Battaglini, F., Bartlett, P.N., Wang, J.H. "Covalent attachment of osmium complexes to glucose oxidase and the application off the resulting modified enzyme in an enzyme switch responsive to glucose" . Analytical Chemistry 72, no. 3 (2000) : 502-509.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00032700_v72_n3_p502_Battaglini [ ]
---------- MLA ----------
Battaglini, F., Bartlett, P.N., Wang, J.H. "Covalent attachment of osmium complexes to glucose oxidase and the application off the resulting modified enzyme in an enzyme switch responsive to glucose" . Analytical Chemistry, vol. 72, no. 3, 2000, pp. 502-509.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00032700_v72_n3_p502_Battaglini [ ]
---------- VANCOUVER ----------
Battaglini, F., Bartlett, P.N., Wang, J.H. Covalent attachment of osmium complexes to glucose oxidase and the application off the resulting modified enzyme in an enzyme switch responsive to glucose. Anal. Chem. 2000;72(3):502-509.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00032700_v72_n3_p502_Battaglini [ ]
