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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Nanostructured silver vanadate as a promising antibacterial additive to water-based paints

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Holtz, Raphael D. [1] ; Lima, Bruna A. [2] ; Souza Filho, Antonio G. [3] ; Brocchi, Marcelo [2] ; Alves, Oswaldo L. [1]
Total Authors: 5
[1] Univ Estadual Campinas, Inst Chem, Solid State Chem Lab LQES, BR-13081970 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Inst Biol, Dept Genet Evolut & Bioagents, BR-13081970 Campinas, SP - Brazil
[3] Univ Fed Ceara, Dept Phys, Fortaleza, Ceara - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Nanomedicine-Nanotechnology Biology and Medicine; v. 8, n. 6, p. 935-940, AUG 2012.
Web of Science Citations: 68

In this article, we report the use of nanostructured silver vanadate as a promising antibacterial additive to water-based paints that has potential for applications in bathrooms, kitchens, and hospital environments. This hybrid nanomaterial was prepared by a simple and fast precipitation reaction involving silver nitrate and ammonium vanadate, dismissing the hydrothermal treatment. The preparation involved using Ag vanadate nanowires (beta-AgVO3) with diameters ranging from 20 to 60 nm and decorated with silver (Ag) nanoparticles (NPs) with diameters ranging from 5 to 40 nm. Results of antibacterial tests show that this hybrid material has a promising antibacterial activity against several types of bacteria strains, such as methicillin-resistant Staphylococcus aureas (MRSA), Enterococcus faecalis, Escherichia coli, and Salmonella enterica Typhimurium. The evaluated material exhibits antibacterial activity 30 times larger than that of Oxacillin. In addition, this nanomaterial was tested as an antibacterial additive to water-based paints, and formulations with 1% show a 4-mm inhibition zone against a MRSA strain. From the Clinical Editor: In this study, silver nanoparticles are studied as additives to water based paints to provide antibacterial properties. With the rise of multi-resistant organisms, the methods outlined in this work may enable the establishment of improved sanitary conditions for health care workers and beyond. (C) 2012 Elsevier Inc. All rights reserved. (AU)

FAPESP's process: 09/02446-0 - Analysis of Antimicrobial Activity Mechanisms of Violacein against Staphylococcus aureus.
Grantee:Bruna de Araujo Lima
Support type: Scholarships in Brazil - Doctorate