Abstract
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.
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