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Title

Kinetics of dissolution of a biocide soda-lime glass powder containing silver nanoparticles

AuthorsEsteban-Tejeda, Leticia ; Silva, A. C. da; Mello-Castanho, S.; Pecharromán, Carlos ; Moya, J. S.
KeywordsGlass-nAg
Low toxicity
Jander model
Biocide
Issue Date2013
PublisherSpringer
CitationJournal of Nanoparticle Research 15: 1447 (2013)
AbstractIn the present study we have studied the lixiviation kinetics of silver nanoparticles, as well as the solubility of a particulate system (<30 μm) composed of a glassy matrix of soda-lime glass containing 20 wt% of silver nanoparticles, under a constant flow (0.21 l/day) of deionizated water at room temperature. The kinetic of silver, CaO and SiO2 lixiviation followed a Jander model (α2/4 ≈ Kt). It has been proven that nanostructured soda-lime glass/nAg composed by particles <30 μm with a 20 wt% of silver are a strong biocide versus Gram-positive, Gram-negative bacteria and yeasts. This soda-lime glass/nAg acts as a perfect dispenser of silver nanoparticles to the liquid media, avoiding the fast increasing of its concentration over the toxicity limit for human cells and for the environment. © 2013 Springer Science+Business Media Dordrecht.
URIhttp://hdl.handle.net/10261/94630
DOI10.1007/s11051-013-1447-2
Identifiersdoi: 10.1007/s11051-013-1447-2
issn: 1388-0764
e-issn: 1572-896X
Appears in Collections:(ICMM) Artículos
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