Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels
Different redox polymers based on poly(allylamine) with covalently attached ferrocene and pyridine groups that coordinate iron and ruthenium complexes were prepared, and hydrogels were obtained by cross-linking them with epichlorohydrin. Charge propagation from the underlying electrode, through the...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00032700_v68_n23_p4186_Calvo |
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todo:paper_00032700_v68_n23_p4186_Calvo2023-10-03T13:55:58Z Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels Calvo, E.J. Etchenique, R. Danilowicz, C. Diaz, L. Different redox polymers based on poly(allylamine) with covalently attached ferrocene and pyridine groups that coordinate iron and ruthenium complexes were prepared, and hydrogels were obtained by cross-linking them with epichlorohydrin. Charge propagation from the underlying electrode, through the redox polymer and electrical communication with the enzyme FADH2 of glucose oxidase, was studied by cyclic voltammetry and electrochemical impedance spectroscopy. The effects of electrolyte composition, concentration of enzyme and substrate, and electrode potential are reported. The role of different redox mediators covalentry attached to the polymer backbone is discussed in terms of driving force and electrostatic barriers. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00032700_v68_n23_p4186_Calvo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Different redox polymers based on poly(allylamine) with covalently attached ferrocene and pyridine groups that coordinate iron and ruthenium complexes were prepared, and hydrogels were obtained by cross-linking them with epichlorohydrin. Charge propagation from the underlying electrode, through the redox polymer and electrical communication with the enzyme FADH2 of glucose oxidase, was studied by cyclic voltammetry and electrochemical impedance spectroscopy. The effects of electrolyte composition, concentration of enzyme and substrate, and electrode potential are reported. The role of different redox mediators covalentry attached to the polymer backbone is discussed in terms of driving force and electrostatic barriers. |
| format |
JOUR |
| author |
Calvo, E.J. Etchenique, R. Danilowicz, C. Diaz, L. |
| spellingShingle |
Calvo, E.J. Etchenique, R. Danilowicz, C. Diaz, L. Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels |
| author_facet |
Calvo, E.J. Etchenique, R. Danilowicz, C. Diaz, L. |
| author_sort |
Calvo, E.J. |
| title |
Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels |
| title_short |
Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels |
| title_full |
Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels |
| title_fullStr |
Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels |
| title_full_unstemmed |
Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels |
| title_sort |
electrical communication between electrodes and enzymes mediated by redox hydrogels |
| url |
http://hdl.handle.net/20.500.12110/paper_00032700_v68_n23_p4186_Calvo |
| work_keys_str_mv |
AT calvoej electricalcommunicationbetweenelectrodesandenzymesmediatedbyredoxhydrogels AT etcheniquer electricalcommunicationbetweenelectrodesandenzymesmediatedbyredoxhydrogels AT danilowiczc electricalcommunicationbetweenelectrodesandenzymesmediatedbyredoxhydrogels AT diazl electricalcommunicationbetweenelectrodesandenzymesmediatedbyredoxhydrogels |
| _version_ |
1807321269119483904 |