Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different Routes
Silver nanoparticles (AgNPs) have been widely employed or incorporated into different materials in biological application, due to their antibacterial properties. Therefore, antimicrobial capacity and cytotoxicity have been highly studied. However, most of these reports do not consider the possible c...
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doaj-54893845b9774a77904aab51db1344b42020-12-21T11:41:29ZengHindawi LimitedBioinorganic Chemistry and Applications1565-36331687-479X2020-01-01202010.1155/2020/88910698891069Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different RoutesI. DeAlba-Montero0Claudio A. Ruiz-Torres1Diana P. Portales-Pérez2Fidel Martínez-Gutierrez3Félix Echeverría4Martha E. Compeán-Jasso5Yolanda G. Cataño-Cañizales6Facundo Ruiz7Doctorado Institucional en Ingeniería y Ciencia de Materiales, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoDepartment of Chemical and Biomolecular Engineering & KAIST Institute of Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of KoreaFacultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoFacultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoGrupo de Corrosión y Protección, Ingeniería de Materiales, Universidad de Antioquia, Medellín, ColombiaFacultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoFacultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoFacultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoSilver nanoparticles (AgNPs) have been widely employed or incorporated into different materials in biological application, due to their antibacterial properties. Therefore, antimicrobial capacity and cytotoxicity have been highly studied. However, most of these reports do not consider the possible corrosion of the nanomaterials during their exposure to atmospheric conditions since AgNPs undergo a transformation when they come in contact with a particular environment. Derived from this, the functionality and properties of the nanoparticles could decrease noticeably. The most common silver corrosion process occurs by the interaction of AgNPs with sulfur species (H2S) present in the atmospheric air, forming a corrosion layer of silver sulfide around the AgNPs, thus inhibiting the release of the ions responsible for the antimicrobial activity. In this work, AgNPs were synthesized using two different methods: one of them was based on a plant extract (Brickellia cavanillesii), and the other one is the well-known method using sodium borohydride (NaBH4). Chemical stability, corrosion, antibacterial activity, and toxic activity were evaluated for both sets of prepared samples, before and after exposition to atmospheric air for three months. The structural characterization of the samples, in terms of crystallinity, chemical composition, and morphology, evidenced the formation of link structures with nanobridges of Ag2S for non- “green” AgNPs after the air exposition and the intact preservation of silver core for the “green” sample. The antibacterial activity showed a clear improvement in the antimicrobial properties of silver in relation to the “green” functionalization, particle size control, and size reduction, as well as the preservation of the properties after air exposition by the effective “green” protection. The cytotoxicity effect of the different AgNPs against mononuclear cells showed a notable increment in the cell viability by the “green” functionalization.http://dx.doi.org/10.1155/2020/8891069 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
I. DeAlba-Montero Claudio A. Ruiz-Torres Diana P. Portales-Pérez Fidel Martínez-Gutierrez Félix Echeverría Martha E. Compeán-Jasso Yolanda G. Cataño-Cañizales Facundo Ruiz |
spellingShingle |
I. DeAlba-Montero Claudio A. Ruiz-Torres Diana P. Portales-Pérez Fidel Martínez-Gutierrez Félix Echeverría Martha E. Compeán-Jasso Yolanda G. Cataño-Cañizales Facundo Ruiz Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different Routes Bioinorganic Chemistry and Applications |
author_facet |
I. DeAlba-Montero Claudio A. Ruiz-Torres Diana P. Portales-Pérez Fidel Martínez-Gutierrez Félix Echeverría Martha E. Compeán-Jasso Yolanda G. Cataño-Cañizales Facundo Ruiz |
author_sort |
I. DeAlba-Montero |
title |
Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different Routes |
title_short |
Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different Routes |
title_full |
Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different Routes |
title_fullStr |
Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different Routes |
title_full_unstemmed |
Atmospheric Corrosion, Antibacterial Properties, and Toxicity of Silver Nanoparticles Synthesized by Two Different Routes |
title_sort |
atmospheric corrosion, antibacterial properties, and toxicity of silver nanoparticles synthesized by two different routes |
publisher |
Hindawi Limited |
series |
Bioinorganic Chemistry and Applications |
issn |
1565-3633 1687-479X |
publishDate |
2020-01-01 |
description |
Silver nanoparticles (AgNPs) have been widely employed or incorporated into different materials in biological application, due to their antibacterial properties. Therefore, antimicrobial capacity and cytotoxicity have been highly studied. However, most of these reports do not consider the possible corrosion of the nanomaterials during their exposure to atmospheric conditions since AgNPs undergo a transformation when they come in contact with a particular environment. Derived from this, the functionality and properties of the nanoparticles could decrease noticeably. The most common silver corrosion process occurs by the interaction of AgNPs with sulfur species (H2S) present in the atmospheric air, forming a corrosion layer of silver sulfide around the AgNPs, thus inhibiting the release of the ions responsible for the antimicrobial activity. In this work, AgNPs were synthesized using two different methods: one of them was based on a plant extract (Brickellia cavanillesii), and the other one is the well-known method using sodium borohydride (NaBH4). Chemical stability, corrosion, antibacterial activity, and toxic activity were evaluated for both sets of prepared samples, before and after exposition to atmospheric air for three months. The structural characterization of the samples, in terms of crystallinity, chemical composition, and morphology, evidenced the formation of link structures with nanobridges of Ag2S for non- “green” AgNPs after the air exposition and the intact preservation of silver core for the “green” sample. The antibacterial activity showed a clear improvement in the antimicrobial properties of silver in relation to the “green” functionalization, particle size control, and size reduction, as well as the preservation of the properties after air exposition by the effective “green” protection. The cytotoxicity effect of the different AgNPs against mononuclear cells showed a notable increment in the cell viability by the “green” functionalization. |
url |
http://dx.doi.org/10.1155/2020/8891069 |
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