Mechanics & Industry
Volume 17, Number 5, 2016
|Number of page(s)||6|
|Published online||10 June 2016|
Antibacterial activity of monolayer nanoparticulate AgN-(titanium-oxo-alkoxy) coatings
1 Laboratoire des Sciences des Procédés
et des Matériaux, CNRS, Université Paris 13, Sorbonne Paris Cité, 93430
2 N. N. Semenov Institute of Chemical Physics, RAS, 119071 Moscow, Russia
3 Institute of Problem of Chemical Physics, RAS, 142432 Chernogolovka, Russia
4 Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region
5 Institute of Molecular Genetics, RAS, 123182 Moscow, Russia
6 State Research Institute of Genetics and Selection of Industrial Microorganisms, 117545 Moscow, Russia
7 École de Biologie Industrielle (EBI), 13 boulevard de l’HAUTIL, 95092 Cergy Pontoise, France
a Corresponding author:
Accepted: 14 November 2015
A comparative evaluation of the antibacterial effect of silver in the form of nanoparticles and Ag+ ions was performed. Silver nanoparticulate coatings of stable and reproducible morphology were prepared on monolayer size-selected titanium-oxo-alkoxy nanoparticles deposited on glass substrates. The coatings exhibit a strong antibacterial activity towards Escherichia coli K12 AB 1157 and suppress biofilms formation. This activity is mainly related to the Ag+ ions release into aqueous solutions in dark. The deposited silver mass ~1 μg.cm-2 is smaller compared to that of Ag+ ions and nanoparticles generally reported for inhibiting Escherichia coli. The synergetic effect of the deposited nanoparticles and Ag+ ions can be suggested.
Key words: Ag-TiO2 / nanoparticles / nanocoatings / antibacterial activity
© AFM, EDP Sciences 2016
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