Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers
Ellipsometric parameters of layer-by-layer self-assembled osmium complex-derivatized poly(allylamine) and glucose oxidase multilayers, (PAH-Os)n(GOx)n, were measured at different wavelengths during oxidation-reduction cycles. Data were analyzed using an isotropic single layer model for the enzyme fi...
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2002
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07437463_v18_n25_p9867_Forzani http://hdl.handle.net/20.500.12110/paper_07437463_v18_n25_p9867_Forzani |
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paper:paper_07437463_v18_n25_p9867_Forzani |
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paper:paper_07437463_v18_n25_p9867_Forzani2023-06-08T15:44:50Z Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers Cyclic voltammetry Ellipsometry Enzymes Ion exchange Negative ions Osmium Oxidation Polyelectrolytes Reduction Refractive index Self assembly Swelling Glucose oxidase Isotropic single layer model Polyallylamine Redox driven swelling Redox modulation Multilayers Ellipsometric parameters of layer-by-layer self-assembled osmium complex-derivatized poly(allylamine) and glucose oxidase multilayers, (PAH-Os)n(GOx)n, were measured at different wavelengths during oxidation-reduction cycles. Data were analyzed using an isotropic single layer model for the enzyme films. The changes in film thickness and refractive index during cyclic voltammetry and potential square wave experiments arise from redox modulation causing film swelling due to the exchange of anions and solvent with the bathing electrolyte. These changes correlate well with the fraction of oxidized PAH-Os(III) in the film. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07437463_v18_n25_p9867_Forzani http://hdl.handle.net/20.500.12110/paper_07437463_v18_n25_p9867_Forzani |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cyclic voltammetry Ellipsometry Enzymes Ion exchange Negative ions Osmium Oxidation Polyelectrolytes Reduction Refractive index Self assembly Swelling Glucose oxidase Isotropic single layer model Polyallylamine Redox driven swelling Redox modulation Multilayers |
| spellingShingle |
Cyclic voltammetry Ellipsometry Enzymes Ion exchange Negative ions Osmium Oxidation Polyelectrolytes Reduction Refractive index Self assembly Swelling Glucose oxidase Isotropic single layer model Polyallylamine Redox driven swelling Redox modulation Multilayers Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers |
| topic_facet |
Cyclic voltammetry Ellipsometry Enzymes Ion exchange Negative ions Osmium Oxidation Polyelectrolytes Reduction Refractive index Self assembly Swelling Glucose oxidase Isotropic single layer model Polyallylamine Redox driven swelling Redox modulation Multilayers |
| description |
Ellipsometric parameters of layer-by-layer self-assembled osmium complex-derivatized poly(allylamine) and glucose oxidase multilayers, (PAH-Os)n(GOx)n, were measured at different wavelengths during oxidation-reduction cycles. Data were analyzed using an isotropic single layer model for the enzyme films. The changes in film thickness and refractive index during cyclic voltammetry and potential square wave experiments arise from redox modulation causing film swelling due to the exchange of anions and solvent with the bathing electrolyte. These changes correlate well with the fraction of oxidized PAH-Os(III) in the film. |
| title |
Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers |
| title_short |
Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers |
| title_full |
Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers |
| title_fullStr |
Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers |
| title_full_unstemmed |
Redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers |
| title_sort |
redox driven swelling of layer-by-layer enzyme-polyelectrolyte multilayers |
| publishDate |
2002 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07437463_v18_n25_p9867_Forzani http://hdl.handle.net/20.500.12110/paper_07437463_v18_n25_p9867_Forzani |
| _version_ |
1768546497777893376 |