Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor
- Autores
- Benavidez, Tomás Enrique; Alvarez, Cecilia Ines; Baruzzi, Ana Maria
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Immobilization conditions of biomolecules play an important role in a biosensor performance. In this paper the response of amperometric electrodes for oxalate is related with some physicochemical properties of the matrices where oxalate oxidase was immobilized. Swelling indexes, partition coefficients and permeability of oxalate in mucin/chitosan matrices in a pH = 2.85 succinic acid solution were measured. These properties were also determined in the 70/30 mucin/chitosan matrix in solutions containing succinic acid and sulfate or chloride anions at the same pH value. The results indicate that the sensitivity of the biosensors is mainly determined by the swelling index of the matrix. High slopes of the calibration curves of the electrodes were obtained with highly swollen matrices indicating the importance of a hydrophilic environment for a good enzymatic response.
Fil: Benavidez, Tomás Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones en Físicoquímica de Córdoba; Argentina; Argentina. Universidad Nacional de Córdoba; Argentina
Fil: Alvarez, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina. Universidad Nacional de Córdoba; Argentina
Fil: Baruzzi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones en Físicoquímica de Córdoba; Argentina; Argentina. Universidad Nacional de Córdoba; Argentina - Materia
-
Polymer
Mucin
Chitosan
Biosensor - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/14990
Ver los metadatos del registro completo
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Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensorBenavidez, Tomás EnriqueAlvarez, Cecilia InesBaruzzi, Ana MariaPolymerMucinChitosanBiosensorhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Immobilization conditions of biomolecules play an important role in a biosensor performance. In this paper the response of amperometric electrodes for oxalate is related with some physicochemical properties of the matrices where oxalate oxidase was immobilized. Swelling indexes, partition coefficients and permeability of oxalate in mucin/chitosan matrices in a pH = 2.85 succinic acid solution were measured. These properties were also determined in the 70/30 mucin/chitosan matrix in solutions containing succinic acid and sulfate or chloride anions at the same pH value. The results indicate that the sensitivity of the biosensors is mainly determined by the swelling index of the matrix. High slopes of the calibration curves of the electrodes were obtained with highly swollen matrices indicating the importance of a hydrophilic environment for a good enzymatic response.Fil: Benavidez, Tomás Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones en Físicoquímica de Córdoba; Argentina; Argentina. Universidad Nacional de Córdoba; ArgentinaFil: Alvarez, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina. Universidad Nacional de Córdoba; ArgentinaFil: Baruzzi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones en Físicoquímica de Córdoba; Argentina; Argentina. Universidad Nacional de Córdoba; ArgentinaElsevier2010-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/14990Benavidez, Tomás Enrique; Alvarez, Cecilia Ines; Baruzzi, Ana Maria; Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor; Elsevier; Sensors And Actuators B: Chemical; 143; 2; 9-2010; 660-6650925-4005enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925400509007990info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2009.10.031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:34:54Zoai:ri.conicet.gov.ar:11336/14990instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:34:54.502CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor |
title |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor |
spellingShingle |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor Benavidez, Tomás Enrique Polymer Mucin Chitosan Biosensor |
title_short |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor |
title_full |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor |
title_fullStr |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor |
title_full_unstemmed |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor |
title_sort |
Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor |
dc.creator.none.fl_str_mv |
Benavidez, Tomás Enrique Alvarez, Cecilia Ines Baruzzi, Ana Maria |
author |
Benavidez, Tomás Enrique |
author_facet |
Benavidez, Tomás Enrique Alvarez, Cecilia Ines Baruzzi, Ana Maria |
author_role |
author |
author2 |
Alvarez, Cecilia Ines Baruzzi, Ana Maria |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Polymer Mucin Chitosan Biosensor |
topic |
Polymer Mucin Chitosan Biosensor |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Immobilization conditions of biomolecules play an important role in a biosensor performance. In this paper the response of amperometric electrodes for oxalate is related with some physicochemical properties of the matrices where oxalate oxidase was immobilized. Swelling indexes, partition coefficients and permeability of oxalate in mucin/chitosan matrices in a pH = 2.85 succinic acid solution were measured. These properties were also determined in the 70/30 mucin/chitosan matrix in solutions containing succinic acid and sulfate or chloride anions at the same pH value. The results indicate that the sensitivity of the biosensors is mainly determined by the swelling index of the matrix. High slopes of the calibration curves of the electrodes were obtained with highly swollen matrices indicating the importance of a hydrophilic environment for a good enzymatic response. Fil: Benavidez, Tomás Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones en Físicoquímica de Córdoba; Argentina; Argentina. Universidad Nacional de Córdoba; Argentina Fil: Alvarez, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina. Universidad Nacional de Córdoba; Argentina Fil: Baruzzi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones en Físicoquímica de Córdoba; Argentina; Argentina. Universidad Nacional de Córdoba; Argentina |
description |
Immobilization conditions of biomolecules play an important role in a biosensor performance. In this paper the response of amperometric electrodes for oxalate is related with some physicochemical properties of the matrices where oxalate oxidase was immobilized. Swelling indexes, partition coefficients and permeability of oxalate in mucin/chitosan matrices in a pH = 2.85 succinic acid solution were measured. These properties were also determined in the 70/30 mucin/chitosan matrix in solutions containing succinic acid and sulfate or chloride anions at the same pH value. The results indicate that the sensitivity of the biosensors is mainly determined by the swelling index of the matrix. High slopes of the calibration curves of the electrodes were obtained with highly swollen matrices indicating the importance of a hydrophilic environment for a good enzymatic response. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-09 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/14990 Benavidez, Tomás Enrique; Alvarez, Cecilia Ines; Baruzzi, Ana Maria; Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor; Elsevier; Sensors And Actuators B: Chemical; 143; 2; 9-2010; 660-665 0925-4005 |
url |
http://hdl.handle.net/11336/14990 |
identifier_str_mv |
Benavidez, Tomás Enrique; Alvarez, Cecilia Ines; Baruzzi, Ana Maria; Physicochemical properties of a mucin/chitosan matrix used for the development of an oxalate biosensor; Elsevier; Sensors And Actuators B: Chemical; 143; 2; 9-2010; 660-665 0925-4005 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925400509007990 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2009.10.031 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |