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Deposition of Laminar TiO2-Based Nanocomposites on a Modified Quartz Crystal Gold Surface

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The deposition of hybrid organic–inorganic nanocomposites of titanium dioxide—prepared by hydrolysis of titanium tretraisopropoxide modified through exchanging one of its ligands with a butinoxy-, octiloxy- or phenoxy-group—on a gold surface modified by a monolayer of decanethiol was studied using a Quartz Crystal Microbalance. The depositions, performed from a suspension in alcohol of the nanocomposites, consisting in titanium oxide bilayers hydrophobically functionalized, occurs by a spontaneous process 'layer by layer.' However the amount of deposited mass in a layer as well as the rates of deposition depend on the degree of aggregation of the nanocomposite in the suspension which is in turn determined by nature of the organic ligands.
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Keywords: QUARTZ CRYSTAL MICROBALANCE; SAM; TITANIUM DIOXIDE NANOCOMPOSITES

Document Type: Research Article

Publication date: 2009-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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