Electrochemical fluorescence modulation at a redox hydrogel modified electrode
Electrochemical fluorescence modulation of flavin redox centers covalently attached to a poly(allylamine)-hydrogel modified ITO electrode was achieved by faradaic modulation of redox states. At least a fraction of the fluorescent flavins is electroactive. Redox switching between oxidised flavin and...
| Publicado: |
1996
|
|---|---|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15726657_v407_n1-2_p203_Bonazzola http://hdl.handle.net/20.500.12110/paper_15726657_v407_n1-2_p203_Bonazzola |
| Aporte de: |
| id |
paper:paper_15726657_v407_n1-2_p203_Bonazzola |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_15726657_v407_n1-2_p203_Bonazzola2023-06-08T16:24:42Z Electrochemical fluorescence modulation at a redox hydrogel modified electrode Flavin-modified electrodes Fluorescence spectroscopy Biosensors Cyclic voltammetry Fluorescence Hydrogels Redox reactions Spectroscopic analysis Differential cyclic voltfluorograms Electrochemical fluorescence modulation Flavin modified electrodes Fluorescence spectroscopy Redox hydrogel modified electrodes Electrochemical electrodes Electrochemical fluorescence modulation of flavin redox centers covalently attached to a poly(allylamine)-hydrogel modified ITO electrode was achieved by faradaic modulation of redox states. At least a fraction of the fluorescent flavins is electroactive. Redox switching between oxidised flavin and non-fluorescent reduced leucoflavin was monitored by square wave modulated and linear scan voltfluorometry. Differential cyclic voltfluorograms and cyclic voltammograms are in very good agreement. In situ fluorescence spectroscopy can be applied to complement electrochemical studies of redox-dyes incorporated in polymeric matrices attached to the electrode surface. Advantages of electrochemical modulated fluorescence in these systems are enhanced sensitivity and selectivity in bio-sensors and the ability to obtain an insight into dynamic electron transfer processes. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15726657_v407_n1-2_p203_Bonazzola http://hdl.handle.net/20.500.12110/paper_15726657_v407_n1-2_p203_Bonazzola |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Flavin-modified electrodes Fluorescence spectroscopy Biosensors Cyclic voltammetry Fluorescence Hydrogels Redox reactions Spectroscopic analysis Differential cyclic voltfluorograms Electrochemical fluorescence modulation Flavin modified electrodes Fluorescence spectroscopy Redox hydrogel modified electrodes Electrochemical electrodes |
| spellingShingle |
Flavin-modified electrodes Fluorescence spectroscopy Biosensors Cyclic voltammetry Fluorescence Hydrogels Redox reactions Spectroscopic analysis Differential cyclic voltfluorograms Electrochemical fluorescence modulation Flavin modified electrodes Fluorescence spectroscopy Redox hydrogel modified electrodes Electrochemical electrodes Electrochemical fluorescence modulation at a redox hydrogel modified electrode |
| topic_facet |
Flavin-modified electrodes Fluorescence spectroscopy Biosensors Cyclic voltammetry Fluorescence Hydrogels Redox reactions Spectroscopic analysis Differential cyclic voltfluorograms Electrochemical fluorescence modulation Flavin modified electrodes Fluorescence spectroscopy Redox hydrogel modified electrodes Electrochemical electrodes |
| description |
Electrochemical fluorescence modulation of flavin redox centers covalently attached to a poly(allylamine)-hydrogel modified ITO electrode was achieved by faradaic modulation of redox states. At least a fraction of the fluorescent flavins is electroactive. Redox switching between oxidised flavin and non-fluorescent reduced leucoflavin was monitored by square wave modulated and linear scan voltfluorometry. Differential cyclic voltfluorograms and cyclic voltammograms are in very good agreement. In situ fluorescence spectroscopy can be applied to complement electrochemical studies of redox-dyes incorporated in polymeric matrices attached to the electrode surface. Advantages of electrochemical modulated fluorescence in these systems are enhanced sensitivity and selectivity in bio-sensors and the ability to obtain an insight into dynamic electron transfer processes. |
| title |
Electrochemical fluorescence modulation at a redox hydrogel modified electrode |
| title_short |
Electrochemical fluorescence modulation at a redox hydrogel modified electrode |
| title_full |
Electrochemical fluorescence modulation at a redox hydrogel modified electrode |
| title_fullStr |
Electrochemical fluorescence modulation at a redox hydrogel modified electrode |
| title_full_unstemmed |
Electrochemical fluorescence modulation at a redox hydrogel modified electrode |
| title_sort |
electrochemical fluorescence modulation at a redox hydrogel modified electrode |
| publishDate |
1996 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15726657_v407_n1-2_p203_Bonazzola http://hdl.handle.net/20.500.12110/paper_15726657_v407_n1-2_p203_Bonazzola |
| _version_ |
1768546416469213184 |