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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/48208
Title: Biocideactivity of diatom-silvernanocomposite
Authors: Suárez, M.; Esteban-Tejeda, L.; Malpartida Romero, Francisco; Fernández, Adolfo; Torrecillas, Ramón; Moya, J.S.
Keywords: Composite materials
Issue Date: Oct-2010
Publisher: Elsevier
Citation: Materials Letters 64(19): 2122-2125 (2010)
Abstract: Diatom-nAg composites containing 1 wt.% of metallic silver nanoparticles (≤ 20 nm) have been obtained by a colloidal route and chemical reduction. This nanostructured powder has proved to be a selective green inorganic biocide which reduces the starting concentrations of Escherichia coli and Micrococcus luteus cultures by at least 5 orders of magnitude, while completely inactive against yeast. Diatom-nAg can be considered as a selective inorganic biocide particularly suitable for the food and pharmacological sectors. The silver nanoparticles are released from the diatom surface to the liquid media in a controlled manner, reaching a concentration (< 11 ppm) far below the toxicity limit for human cells.
Description: 4 páginas, 4 figuras, 1 tabla.
Publisher version (URL): http://dx.doi.org/10.1016/j.matlet.2010.06.061
URI: http://hdl.handle.net/10261/48208
DOI: 10.1016/j.matlet.2010.06.061
ISSN: 0167-577X
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