technology Described from University of Milan -->
By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Nanotechnology are presented in a new report. According to news reporting from Milano, Italy, by NewsRx journalists, research stated, "We report on the systematic investigation of the role of surface nanoscale roughness and morphology on the charging behaviour of nanostructured titania (TiO2) surfaces in aqueous solutions. IsoElectric Points (IEPs) of surfaces have been characterized by direct measurement of the electrostatic double layer interactions between titania surfaces and the micrometer-sized spherical silica probe of an atomic force microscope in NaCl aqueous electrolyte."
The news correspondents obtained a quote from the research from the University of Milan, "The use of a colloidal probe provides well-defined interaction geometry and allows effectively probing the overall effect of nanoscale morphology. By using supersonic cluster beam deposition to fabricate nanostructured titania films, we achieved a quantitative control over the surface morphological parameters. We performed a systematical exploration of the electrical double layer properties in different interaction regimes characterized by different ratios of characteristic nanometric lengths of the system: the surface rms roughness Rq, the correlation length ? and the Debye length ?D. We observed a remarkable reduction by several pH units of IEP on rough nanostructured surfaces, with respect to flat crystalline rutile TiO2."
According to the news reporters, the research concluded: "In order to explain the observed behavior of IEP, we consider the roughness-induced self-overlap of the electrical double layers as a potential source of deviation from the trend expected for flat surfaces."
For more information on this research see: Nanoscale roughness and morphology affect the IsoElectric Point of titania surfaces. Plos One, 2013;8(7):e68655. (Public Library of Science - www.plos.org; Plos One - www.plosone.org)
Our news journalists report that additional information may be obtained by contacting F. Borghi, Interdisciplinary Centre for Nanostructured Materials and Interfaces and Dept. of Physics, Universita degli Studi di Milano, Milano, Italy. Additional authors for this research include V. Vyas, A. Podesta and P. Milani (see also technology.html">Nanotechnology).
Keywords for this news article include: Italy, Milano, Europe, Nanoscale, Nanotechnology, Emerging Technologies.
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