Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites

Autores
Gómez de Saravia, Sandra Gabriela; Rastelli, Silvia Elena; Angulo-Pineda, Carolina; Palza, Humberto; Viera, Marisa Rosana
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The rise of nanotechnology has allowed the development of several inorganic nanoparticles with strong biocidal properties against bacteria, fungi, and viruses. Among them, silver nanoparticles (AgNPs) stand out as one of the most promising antimicrobial nanomaterials. Graphene oxide (GO) is another attractive nanomaterial with antimicrobial properties. Although the antimicrobial effect of AgNPs and GO is known, the development of hybrid materials of GO-AgNPs has considerable interest in various applications since they may exhibit synergistic bactericidal properties that exceed the yields of the individual components. The aims of this work were to evaluate the antimicrobial activity and anti-adhesion properties of AgNPs and GO-AgNPs nanocomposites for potential applications in antimicrobial coatings. The antimicrobial activity was tested by agar diffusion method. It was found that activity varied according to the synthesis procedure of the nanomaterials. Pseudomonas aeruginosa, Bacillus cereus and Kokuria rhizophila were the most susceptible strains. The nanocomposite GO- AgNPs synthetized using the ex-situ method exhibited the highest antibacterial activity against all the assayed strains. Similar results were obtained for bacterial adhesion inhibition tests. Thus, GO-AgNPs nanohybrids could be applied as antibacterial coatings to prevent bacterial biofilm development.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Facultad de Ciencias Exactas
Comisión de Investigaciones Científicas de la provincia de Buenos Aires
Materia
Ingeniería Química
Silver nanoparticles
Graphene oxide
Bacteria
Biofilms
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/112673
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/112673
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle compositesGómez de Saravia, Sandra GabrielaRastelli, Silvia ElenaAngulo-Pineda, CarolinaPalza, HumbertoViera, Marisa RosanaIngeniería QuímicaSilver nanoparticlesGraphene oxideBacteriaBiofilmsThe rise of nanotechnology has allowed the development of several inorganic nanoparticles with strong biocidal properties against bacteria, fungi, and viruses. Among them, silver nanoparticles (AgNPs) stand out as one of the most promising antimicrobial nanomaterials. Graphene oxide (GO) is another attractive nanomaterial with antimicrobial properties. Although the antimicrobial effect of AgNPs and GO is known, the development of hybrid materials of GO-AgNPs has considerable interest in various applications since they may exhibit synergistic bactericidal properties that exceed the yields of the individual components. The aims of this work were to evaluate the antimicrobial activity and anti-adhesion properties of AgNPs and GO-AgNPs nanocomposites for potential applications in antimicrobial coatings. The antimicrobial activity was tested by agar diffusion method. It was found that activity varied according to the synthesis procedure of the nanomaterials. Pseudomonas aeruginosa, Bacillus cereus and Kokuria rhizophila were the most susceptible strains. The nanocomposite GO- AgNPs synthetized using the ex-situ method exhibited the highest antibacterial activity against all the assayed strains. Similar results were obtained for bacterial adhesion inhibition tests. Thus, GO-AgNPs nanohybrids could be applied as antibacterial coatings to prevent bacterial biofilm development.Centro de Investigación y Desarrollo en Tecnología de PinturasFacultad de Ciencias ExactasComisión de Investigaciones Científicas de la provincia de Buenos Aires2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/112673enginfo:eu-repo/semantics/altIdentifier/issn/1517-7076info:eu-repo/semantics/altIdentifier/doi/10.1590/S1517-707620200002.1071info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:17:45Zoai:sedici.unlp.edu.ar:10915/112673Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:17:45.698SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
title Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
spellingShingle Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
Gómez de Saravia, Sandra Gabriela
Ingeniería Química
Silver nanoparticles
Graphene oxide
Bacteria
Biofilms
title_short Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
title_full Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
title_fullStr Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
title_full_unstemmed Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
title_sort Anti-adhesion and antibacterial activity of silver nanoparticles and graphene oxide-silver nanoparticle composites
dc.creator.none.fl_str_mv Gómez de Saravia, Sandra Gabriela
Rastelli, Silvia Elena
Angulo-Pineda, Carolina
Palza, Humberto
Viera, Marisa Rosana
author Gómez de Saravia, Sandra Gabriela
author_facet Gómez de Saravia, Sandra Gabriela
Rastelli, Silvia Elena
Angulo-Pineda, Carolina
Palza, Humberto
Viera, Marisa Rosana
author_role author
author2 Rastelli, Silvia Elena
Angulo-Pineda, Carolina
Palza, Humberto
Viera, Marisa Rosana
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ingeniería Química
Silver nanoparticles
Graphene oxide
Bacteria
Biofilms
topic Ingeniería Química
Silver nanoparticles
Graphene oxide
Bacteria
Biofilms
dc.description.none.fl_txt_mv The rise of nanotechnology has allowed the development of several inorganic nanoparticles with strong biocidal properties against bacteria, fungi, and viruses. Among them, silver nanoparticles (AgNPs) stand out as one of the most promising antimicrobial nanomaterials. Graphene oxide (GO) is another attractive nanomaterial with antimicrobial properties. Although the antimicrobial effect of AgNPs and GO is known, the development of hybrid materials of GO-AgNPs has considerable interest in various applications since they may exhibit synergistic bactericidal properties that exceed the yields of the individual components. The aims of this work were to evaluate the antimicrobial activity and anti-adhesion properties of AgNPs and GO-AgNPs nanocomposites for potential applications in antimicrobial coatings. The antimicrobial activity was tested by agar diffusion method. It was found that activity varied according to the synthesis procedure of the nanomaterials. Pseudomonas aeruginosa, Bacillus cereus and Kokuria rhizophila were the most susceptible strains. The nanocomposite GO- AgNPs synthetized using the ex-situ method exhibited the highest antibacterial activity against all the assayed strains. Similar results were obtained for bacterial adhesion inhibition tests. Thus, GO-AgNPs nanohybrids could be applied as antibacterial coatings to prevent bacterial biofilm development.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Facultad de Ciencias Exactas
Comisión de Investigaciones Científicas de la provincia de Buenos Aires
description The rise of nanotechnology has allowed the development of several inorganic nanoparticles with strong biocidal properties against bacteria, fungi, and viruses. Among them, silver nanoparticles (AgNPs) stand out as one of the most promising antimicrobial nanomaterials. Graphene oxide (GO) is another attractive nanomaterial with antimicrobial properties. Although the antimicrobial effect of AgNPs and GO is known, the development of hybrid materials of GO-AgNPs has considerable interest in various applications since they may exhibit synergistic bactericidal properties that exceed the yields of the individual components. The aims of this work were to evaluate the antimicrobial activity and anti-adhesion properties of AgNPs and GO-AgNPs nanocomposites for potential applications in antimicrobial coatings. The antimicrobial activity was tested by agar diffusion method. It was found that activity varied according to the synthesis procedure of the nanomaterials. Pseudomonas aeruginosa, Bacillus cereus and Kokuria rhizophila were the most susceptible strains. The nanocomposite GO- AgNPs synthetized using the ex-situ method exhibited the highest antibacterial activity against all the assayed strains. Similar results were obtained for bacterial adhesion inhibition tests. Thus, GO-AgNPs nanohybrids could be applied as antibacterial coatings to prevent bacterial biofilm development.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/112673
url http://sedici.unlp.edu.ar/handle/10915/112673
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1517-7076
info:eu-repo/semantics/altIdentifier/doi/10.1590/S1517-707620200002.1071
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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