Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles
Revista con referato
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| Autores principales: | , , , , , , , , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Inglés |
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Elsevier Science
2026
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| Acceso en línea: | http://repositorio.ungs.edu.ar:8080/xmlui/handle/UNGS/2738 |
| Aporte de: |
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I71-R177-UNGS-2738 |
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| record_format |
dspace |
| institution |
Universidad Nacional de General Sarmiento |
| institution_str |
I-71 |
| repository_str |
R-177 |
| collection |
Repositorio Institucional Digital de Acceso Abierto (UNGS) |
| language |
Inglés |
| orig_language_str_mv |
eng |
| topic |
Biogenic AG-Nanoparticles Antimicrobial Surfaces Green Nanoparticle Biosynthesis Otras Ciencias Naturales y Exactas Biotecnología del Medio Ambiente |
| spellingShingle |
Biogenic AG-Nanoparticles Antimicrobial Surfaces Green Nanoparticle Biosynthesis Otras Ciencias Naturales y Exactas Biotecnología del Medio Ambiente Ferreira, Maria Laura Lazzarini Behrmann, Irene Constanza Daniel, María Alejandra Sosa, Griselda Leonor Owusu, Ethel Parkin, Ivan P. Candal, Roberto Jorge Allan, Elaine Vullo, Diana Lia Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles |
| topic_facet |
Biogenic AG-Nanoparticles Antimicrobial Surfaces Green Nanoparticle Biosynthesis Otras Ciencias Naturales y Exactas Biotecnología del Medio Ambiente |
| description |
Revista con referato |
| format |
Artículo Artículo publishedVersion |
| author |
Ferreira, Maria Laura Lazzarini Behrmann, Irene Constanza Daniel, María Alejandra Sosa, Griselda Leonor Owusu, Ethel Parkin, Ivan P. Candal, Roberto Jorge Allan, Elaine Vullo, Diana Lia |
| author_facet |
Ferreira, Maria Laura Lazzarini Behrmann, Irene Constanza Daniel, María Alejandra Sosa, Griselda Leonor Owusu, Ethel Parkin, Ivan P. Candal, Roberto Jorge Allan, Elaine Vullo, Diana Lia |
| author_sort |
Ferreira, Maria Laura |
| title |
Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles |
| title_short |
Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles |
| title_full |
Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles |
| title_fullStr |
Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles |
| title_full_unstemmed |
Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles |
| title_sort |
green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles |
| publisher |
Elsevier Science |
| publishDate |
2026 |
| url |
http://repositorio.ungs.edu.ar:8080/xmlui/handle/UNGS/2738 |
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| _version_ |
1858615809918631936 |
| spelling |
I71-R177-UNGS-27382026-01-15T21:19:41Z Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles Ferreira, Maria Laura Lazzarini Behrmann, Irene Constanza Daniel, María Alejandra Sosa, Griselda Leonor Owusu, Ethel Parkin, Ivan P. Candal, Roberto Jorge Allan, Elaine Vullo, Diana Lia Biogenic AG-Nanoparticles Antimicrobial Surfaces Green Nanoparticle Biosynthesis Otras Ciencias Naturales y Exactas Biotecnología del Medio Ambiente Revista con referato Fil: Ferreira, Maria Laura. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Fil: Lazzarini Behrmann, Irene Constanza. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Fil: Daniel, María Alejandra. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Fil: Sosa, Griselda Leonor. Universidad Nacional de General Sarmiento. Instituto de Ciencias.; Argentina. Fil: Vullo, Diana S. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Fil: Owusu, Ethel. University College London. Departament Of Chemistry; Estados Unidos. Fil: Parkin, Ivan P.. University College London. Departament Of Chemistry; Estados Unidos. Fil: Allan, Elaine. University College London; Estados Unidos The biosynthesis of metallic nanoparticles is gaining prominence as an alternative to traditional physicochemical methods, offering several advantages such as simplicity, non-toxicity, lower energy requirements and short reaction times leading to environmentally sustainable processes. The aims of this work were: to study the extracellular biosynthesis of silver nanoparticles (AgNPs) by Pseudomonas extremaustralis 2E-UNGS, to characterise the shape, monodispersity and size of AgNPs, to explore their antimicrobial and antibiofilm activities, and to evaluate the role of nitrate reductase activity in the biosynthesis process. The novelty of this work relies on the development of a green and sustainable method for the synthesis of stable AgNPs with optimal properties for potential applications in antimicrobial materials, especially when incorporated into polymeric matrices or used as agrochemical substitutes. Optimal conditions for the biosynthesis of spherical AgNPs were determined to be pH 7, 38 ?C, 4 h of darkness and 120 rpm using stationary phase culture supernatants of P. extremaustralis 2EUNGS. The involvement of extracellular nitrate reductase in AgNP biosynthesis was confirmed by enzymatic assays and supported by bioinformatics analysis, which identified the presence of the napA2 gene linked to the nirBD cluster. Antimicrobial assays demonstrated the inhibitory effect of AgNPs against both Gram-positive and Gram-negative bacteria, including Pseudomonas aeruginosa PA01 in both planktonic and biofilm states. In addition, the potential application of AgNPs in innovative antibacterial polymers was explored by incorporating them into polyurethane matrices either alone (PU-AgNP) or in combination with crystal violet as a photosensitizer (PU-AgNP-CV). Subsequent inoculation with a clinical isolate of Pseudomonas aeruginosa resulted in significant reductions in viable bacterial counts on both PU-AgNP-CV and PU-AgNP. Biogenic AgNPs showed antibacterial and antibiofilm properties for new antimicrobial material development. 2026-01-15T21:19:41Z 2026-01-15T21:19:41Z 2024 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion Ferreira, M. L., Lazzarini Behrmann, I. C., Daniel, M. A., Sosa, G. O., Owusu, E., Vullo, D. L. et al. (2024). Green synthesis and antibacterial-antibiofilm properties of biogenic silver nanoparticles. Environmental Nanotechnology, Monitoring & Management, 22, 1-13. 2215-1532 http://repositorio.ungs.edu.ar:8080/xmlui/handle/UNGS/2738 eng http://dx.doi.org/10.1016/j.enmm.2024.100991 info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier Science Environmental Nanotechnology, Monitoring & Management. Dic. 2024; 22: 1-13 https://www.sciencedirect.com/journal/environmental-nanotechnology-monitoring-and-management/vol/22/suppl/C |