The preparation of highly antimicrobial silver nanoparticles by an organometallic approach.

  1. Fernández, E.J. 1
  2. García-Barrasa, J. 1
  3. Laguna, A. 2
  4. López-De-Luzuriaga, J.M. 1
  5. Monge, M. 1
  6. Torres, C. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Instituto de Nanociencia y Materiales de Aragón
    info

    Instituto de Nanociencia y Materiales de Aragón

    Zaragoza, España

    ROR https://ror.org/031n2c920

Revista:
Nanotechnology

ISSN: 0957-4484

Año de publicación: 2008

Volumen: 19

Número: 18

Tipo: Artículo

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DOI: 10.1088/0957-4484/19/18/185602 SCOPUS: 2-s2.0-42549167100 WoS: WOS:000255097700008 GOOGLE SCHOLAR

Otras publicaciones en: Nanotechnology

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Resumen

Silver nanoparticles of small size with a high surface to volume ratio have been prepared using an organometallic approach. For this, the complex NBu 4[Ag(C6F5)2] has been treated with AgClO4 in a 1:1 molar ratio, giving rise to the nanoparticle precursor [Ag(C6F5)] in solution. Addition of one equivalent of hexadecylamine (HDA) and 5 h of reflux in toluene leads to a deep yellow solution containing monodisperse silver nanoparticles (Ag NPs) of ca. 10 nm. This approach leads to nanoparticles with almost uncontaminated surfaces which make them very reactive. Antimicrobial studies show that these nanoparticles are very active as antimicrobial agents. Very low concentrations between 12 and 25 μg ml-1 of Ag NPs are enough to produce bacteriostatic and bactericidal effectiveness. © IOP Publishing Ltd.