Título
Plasmonic sensing of aqueous-divalent metal ions by biogenic gold nanoparticles
Autor
LUISA ELENA SILVA DE HOYOS
Víctor Sánchez Mendieta
ALFREDO RAFAEL VILCHIS NESTOR
MIGUEL ANGEL CAMACHO LOPEZ
Jesica Trujillo Reyes
MIGUEL AVALOS BORJA
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: https://doi.org/10.1155/2019/9846729
Materias
Resumen o descripción
"The chemical interaction between biogenic gold nanoparticles (AuNPs) and several metal (II) ions can be regarded as a practical, twofold, colorimetric, and plasmon resonance sensing method for the recognition of some divalent metal ions in aqueous solutions. The green synthesized AuNPs, using Camellia sinensis as a reducing agent, were characterized by a surface plasmon resonance (SPR) using UV-Vis spectroscopy, infrared spectroscopy, and transmission electron microscopy. The AuNP colloidal solutions obtained have a pink-reddish color with SPRs centered between 529 and 536nm. AuNPs with spherical, triangular, and hexagonal shapes were found by TEM analyses. Despite their divergent morphologies, these AuNPs can be employed as colorimetric and plasmon resonance sensors for detection of Ca2+, Sr2+, Cu2+, and Zn2+, primarily, in aqueous solutions. Sensibility studies based on molar concentrations were also performed for these metal ions. Furthermore, solid biogenic AuNPs/cellulosic biocomposites were prepared with the aim of developing portable, fast, and dependable colorimetric sensors; nevertheless, these biocomposites resulted to be good adsorbent materials of metal ions."
Editor
Hindawi Publishing Corporation
Fecha de publicación
2019
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Relación
&
Sanchez-Mendieta, Victor
&
Vilchis-Nestor, Alfredo
&
Camacho-Lopez, Miguel
&
Trujillo-Reyes, Jesica
&
Avalos-Borja, Miguel. (2019). Plasmonic Sensing of Aqueous-Divalent Metal Ions by Biogenic Gold Nanoparticles. Journal of Nanomaterials. 2019. 1-11. 10.1155/2019/9846729.
Sugerencia de citación
Hoyos, Luisa
Repositorio Orígen
Repositorio IPICYT
Descargas
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