Artículo
Synthesis, characterization and kinetic study of silver and gold nanoparticles produced by the archaeon Haloferax volcanii
Costa, Mariana Inés
; Álvarez Cerimedo, María Soledad
; Urquiza, Delia Natalia; Ayude, María Alejandra
; Hoppe, Cristina Elena
; Fasce, Diana Patricia
; de Castro, Rosana Esther
; Gimenez, Maria Ines
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Fecha de publicación:
05/2020
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Journal of Applied Microbiology
ISSN:
1364-5072
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Aims: To evaluate the ability of the haloarchaeon Haloferax volcanii to produce Ag and Au nanoparticles (NPs) and to characterize the obtained material in order to find relevant properties for future potential applications. Methods and Results: Nanoparticles were produced by incubating H. volcanii cells with the corresponding metal salt. In the presence of precursor salts, cultures evidenced a colour change associated to the formation of metallic nanostructures with plasmonic bands located in the visible range of the spectrum. X-ray fluorescence analysis confirmed the presence of Ag and Au in the NPs which were spherical, with average sizes of 25 nmol l−1 (Ag) and 10 nmol l−1 (Au), as determined by electronic microscopy. Fourier transformed infrared spectroscopy indicated that both types of NPs showed a stable protein capping. Ag NPs evidenced antibacterial activity and Au NPs improved the specificity of polymerase chain reaction reactions. Au and Ag NPs were able to reduce 4-nitrophenol when incubated with NaBH4. Conclusions: Haloferax volcanii is able to synthesize metallic NPs with interesting properties for technological applications. Significance and Impact of the Study: Our data demonstrate the ability of H. volcanii to synthesize metal NPs and constitutes a solid starting point to deepen the study and explore novel applications.
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Identificadores
Colecciones
Articulos(IIB)
Articulos de INSTITUTO DE INVESTIGACIONES BIOLOGICAS
Articulos de INSTITUTO DE INVESTIGACIONES BIOLOGICAS
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Costa, Mariana Inés; Álvarez Cerimedo, María Soledad; Urquiza, Delia Natalia; Ayude, María Alejandra; Hoppe, Cristina Elena; et al.; Synthesis, characterization and kinetic study of silver and gold nanoparticles produced by the archaeon Haloferax volcanii; Wiley Blackwell Publishing, Inc; Journal of Applied Microbiology; 129; 5; 5-2020; 1297-1308
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