Electroformation of coatings modified with silver on magnesium alloys for biomedical applications

Three different films modified with silver species were considered to enhance the corrosion resistance of AZ91D Mg alloy and to impart its surface with antibacterial activity. First, coatings were electrodeposited under potentiostatic conditions in electrolyte solutions containing Na2MoO4 and/or Ce(...

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Autores: Loperena, Ana Paula, Forero Lopez, Ana Deisy, Brugnoni, Lorena Inés, Lehr, Ivana Leticia, Saidman, Silvana Beatriz
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/138832
Acceso en línea:http://hdl.handle.net/11336/138832
Access Level:acceso abierto
Palabra clave:AND SILVER MODIFICATION
AZ91D MG ALLOY CORROSION PROTECTION
CERIUM AND MOLYBDENUM COATINGS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
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spelling Electroformation of coatings modified with silver on magnesium alloys for biomedical applicationsLoperena, Ana PaulaForero Lopez, Ana DeisyBrugnoni, Lorena InésLehr, Ivana LeticiaSaidman, Silvana BeatrizAND SILVER MODIFICATIONAZ91D MG ALLOY CORROSION PROTECTIONCERIUM AND MOLYBDENUM COATINGShttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Three different films modified with silver species were considered to enhance the corrosion resistance of AZ91D Mg alloy and to impart its surface with antibacterial activity. First, coatings were electrodeposited under potentiostatic conditions in electrolyte solutions containing Na2MoO4 and/or Ce(NO3)3 as main compounds, and H2O2, ascorbic acid or citric acid as additives. Incorporation of silver species was done by immersion of the samples in AgNO3 solutions. The obtained modified films were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The corrosion protection properties of the films were examined in a simulated physiological solution by open circuit measurements, linear polarization and electrochemical impedance spectroscopy (EIS). The antibacterial effect of the coatings was evaluated using Escherichia coli bacteria. Cerium and molybdenum-based coating modified with silver provides superior antibacterial and anticorrosive properties compared to the other films studied.Fil: Loperena, Ana Paula. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Forero Lopez, Ana Deisy. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Brugnoni, Lorena Inés. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lehr, Ivana Leticia. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Saidman, Silvana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; ArgentinaEditorial Board2020-08-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/138832Loperena, Ana Paula; Forero Lopez, Ana Deisy; Brugnoni, Lorena Inés; Lehr, Ivana Leticia; Saidman, Silvana Beatriz; Electroformation of coatings modified with silver on magnesium alloys for biomedical applications; Editorial Board; Portugaliae Electrochimica Acta; 38; 6; 24-8-2020; 351-3640872-1904CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.peacta.org/articles_upload/PEA_38_6_2020_351_364.pdfinfo:eu-repo/semantics/altIdentifier/doi/10.4152/pea.202006351info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:00:33Zoai:ri.conicet.gov.ar:11336/138832instacron: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:34982024-05-08 14:00:33.792CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
title Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
spellingShingle Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
Loperena, Ana Paula
AND SILVER MODIFICATION
AZ91D MG ALLOY CORROSION PROTECTION
CERIUM AND MOLYBDENUM COATINGS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
title_short Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
title_full Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
title_fullStr Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
title_full_unstemmed Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
title_sort Electroformation of coatings modified with silver on magnesium alloys for biomedical applications
dc.creator.none.fl_str_mv Loperena, Ana Paula
Forero Lopez, Ana Deisy
Brugnoni, Lorena Inés
Lehr, Ivana Leticia
Saidman, Silvana Beatriz
author Loperena, Ana Paula
author_facet Loperena, Ana Paula
Forero Lopez, Ana Deisy
Brugnoni, Lorena Inés
Lehr, Ivana Leticia
Saidman, Silvana Beatriz
author_role author
author2 Forero Lopez, Ana Deisy
Brugnoni, Lorena Inés
Lehr, Ivana Leticia
Saidman, Silvana Beatriz
author2_role author
author
author
author
dc.subject.none.fl_str_mv AND SILVER MODIFICATION
AZ91D MG ALLOY CORROSION PROTECTION
CERIUM AND MOLYBDENUM COATINGS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
topic AND SILVER MODIFICATION
AZ91D MG ALLOY CORROSION PROTECTION
CERIUM AND MOLYBDENUM COATINGS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
description Three different films modified with silver species were considered to enhance the corrosion resistance of AZ91D Mg alloy and to impart its surface with antibacterial activity. First, coatings were electrodeposited under potentiostatic conditions in electrolyte solutions containing Na2MoO4 and/or Ce(NO3)3 as main compounds, and H2O2, ascorbic acid or citric acid as additives. Incorporation of silver species was done by immersion of the samples in AgNO3 solutions. The obtained modified films were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The corrosion protection properties of the films were examined in a simulated physiological solution by open circuit measurements, linear polarization and electrochemical impedance spectroscopy (EIS). The antibacterial effect of the coatings was evaluated using Escherichia coli bacteria. Cerium and molybdenum-based coating modified with silver provides superior antibacterial and anticorrosive properties compared to the other films studied.
publishDate 2020
dc.date.none.fl_str_mv 2020-08-24
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/11336/138832
Loperena, Ana Paula; Forero Lopez, Ana Deisy; Brugnoni, Lorena Inés; Lehr, Ivana Leticia; Saidman, Silvana Beatriz; Electroformation of coatings modified with silver on magnesium alloys for biomedical applications; Editorial Board; Portugaliae Electrochimica Acta; 38; 6; 24-8-2020; 351-364
0872-1904
CONICET Digital
CONICET
url http://hdl.handle.net/11336/138832
identifier_str_mv Loperena, Ana Paula; Forero Lopez, Ana Deisy; Brugnoni, Lorena Inés; Lehr, Ivana Leticia; Saidman, Silvana Beatriz; Electroformation of coatings modified with silver on magnesium alloys for biomedical applications; Editorial Board; Portugaliae Electrochimica Acta; 38; 6; 24-8-2020; 351-364
0872-1904
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.peacta.org/articles_upload/PEA_38_6_2020_351_364.pdf
info:eu-repo/semantics/altIdentifier/doi/10.4152/pea.202006351
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Editorial Board
publisher.none.fl_str_mv Editorial Board
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv 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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score 15.811543

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