Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits
This work compares the degradation of Mg and Mg-Ca0.3 alloy when they are exposed for 14 days to Hank’s solution at 37 °C. A combination of immersion test, electrochemical techniques (PDP, EIS, EN), and surface characterization methods (SEM-EDS, XRD, and XPS) were carried out. The pH change over tim...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/258064 |
| Acesso em linha: | http://hdl.handle.net/10261/258064 |
| Access Level: | acceso abierto |
| Palavra-chave: | Magnesium Mg-Ca alloy Corrosion Hank’s solution Silver nano-particles UV-Vis Bacteria zeta potential Antibacterial properties |
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Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles depositsGonzález-Murguía, J.L.Veleva, LucienRodríguez-Gattorno, GeonelFigueroa-Torres, MayraFeliú Jr., S.MagnesiumMg-Ca alloyCorrosionHank’s solutionSilver nano-particlesUV-VisBacteria zeta potentialAntibacterial propertiesThis work compares the degradation of Mg and Mg-Ca0.3 alloy when they are exposed for 14 days to Hank’s solution at 37 °C. A combination of immersion test, electrochemical techniques (PDP, EIS, EN), and surface characterization methods (SEM-EDS, XRD, and XPS) were carried out. The pH change over time, the lower mass loss (≈20%), and the lower concentration of the released Mg ions (≈3.6 times), as well as the lower level of the surface degradation, allowed to consider the positive effect of Ca, presenting Mg-Ca0.3 alloy with lower electrochemical activity than that of Mg. The positive effect of Ca may be due to the formed layer characteristics on the alloy surface, which impedes the cathodic hydrogen evolution and Mg-ions release. The electroless deposited Ag-nano-particles (Ag-NPs) on Mg-Ca0.3 surface were characterized by SEM-EDS, XRD, UV-Vis, and contact angle. The agar-diffusion test was used to compare the growth of Staphylococcus aureus and Escherichia coli bacteria on Mg-Ca0.3 in the presence of Ag-NPs deposits in different size. Zeta-potential of the bacteria was negative, with respect to pH of the Mueller-Hinton culture broth. The greater antibacterial effect of S. aureus was attributed to its more negative zeta-potential, attracting more released Ag ions.J. Luis González-Murguía acknowledges the Mexican National Council for Science and Technology (CONACYT) for the scholarship granted to him for his Ph.D. study. The authors gratefully thank the National Laboratory of Nano- and Biomaterials (LANNBIO-CINVESTAV) for allowing the use of DRX, SEM-EDS and XPS facilities, and to Daniel Aguilar, Victor Rejón Moo and Willian Cauich for their support in data acquisition. The projects: FOMIX-Yucatán 2008-108160, CONACYT LAB-2009-01-123913, 292692, 294643, 188345 y 204822.Multidisciplinary Digital Publishing InstituteConsejo Nacional de Ciencia y Tecnología (México)Laboratorio Nacional de Nano y Biomateriales (México)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220212022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/258064reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3390/met11091357Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2580642026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits |
| title |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits |
| spellingShingle |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits González-Murguía, J.L. Magnesium Mg-Ca alloy Corrosion Hank’s solution Silver nano-particles UV-Vis Bacteria zeta potential Antibacterial properties |
| title_short |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits |
| title_full |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits |
| title_fullStr |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits |
| title_full_unstemmed |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits |
| title_sort |
Mg-ca0.3 electrochemical activity exposed to hank’s physiological solution and properties of ag-nano-particles deposits |
| dc.creator.none.fl_str_mv |
González-Murguía, J.L. Veleva, Lucien Rodríguez-Gattorno, Geonel Figueroa-Torres, Mayra Feliú Jr., S. |
| author |
González-Murguía, J.L. |
| author_facet |
González-Murguía, J.L. Veleva, Lucien Rodríguez-Gattorno, Geonel Figueroa-Torres, Mayra Feliú Jr., S. |
| author_role |
author |
| author2 |
Veleva, Lucien Rodríguez-Gattorno, Geonel Figueroa-Torres, Mayra Feliú Jr., S. |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
Consejo Nacional de Ciencia y Tecnología (México) Laboratorio Nacional de Nano y Biomateriales (México) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Magnesium Mg-Ca alloy Corrosion Hank’s solution Silver nano-particles UV-Vis Bacteria zeta potential Antibacterial properties |
| topic |
Magnesium Mg-Ca alloy Corrosion Hank’s solution Silver nano-particles UV-Vis Bacteria zeta potential Antibacterial properties |
| description |
This work compares the degradation of Mg and Mg-Ca0.3 alloy when they are exposed for 14 days to Hank’s solution at 37 °C. A combination of immersion test, electrochemical techniques (PDP, EIS, EN), and surface characterization methods (SEM-EDS, XRD, and XPS) were carried out. The pH change over time, the lower mass loss (≈20%), and the lower concentration of the released Mg ions (≈3.6 times), as well as the lower level of the surface degradation, allowed to consider the positive effect of Ca, presenting Mg-Ca0.3 alloy with lower electrochemical activity than that of Mg. The positive effect of Ca may be due to the formed layer characteristics on the alloy surface, which impedes the cathodic hydrogen evolution and Mg-ions release. The electroless deposited Ag-nano-particles (Ag-NPs) on Mg-Ca0.3 surface were characterized by SEM-EDS, XRD, UV-Vis, and contact angle. The agar-diffusion test was used to compare the growth of Staphylococcus aureus and Escherichia coli bacteria on Mg-Ca0.3 in the presence of Ag-NPs deposits in different size. Zeta-potential of the bacteria was negative, with respect to pH of the Mueller-Hinton culture broth. The greater antibacterial effect of S. aureus was attributed to its more negative zeta-potential, attracting more released Ag ions. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2022 2022 2022 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/258064 |
| url |
http://hdl.handle.net/10261/258064 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://doi.org/10.3390/met11091357 Sí |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
| publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
| dc.source.none.fl_str_mv |
reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
| reponame_str |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| collection |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
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| repository.mail.fl_str_mv |
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1869404768049299456 |
| score |
15,812455 |