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IMEC Reports Findings in Nanostructures (High-Frequency Acoustic for Nanostructure Wetting Characterization)

August 8, 2014



By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Nanostructures. According to news reporting originating from Louvain, Belgium, by NewsRx correspondents, research stated, "Nanostructure wetting is a key problem when developing superhydrophobic surfaces. Conventional methods do not allow us to draw conclusions about the partial or complete wetting of structures on the nanoscale."

Our news editors obtained a quote from the research from IMEC, "Moreover, advanced techniques are not always compatible with an in situ, real time, multiscale (from macro to nanoscale) characterization. A high-frequency (1 GHz) acoustic method is used for the first time to characterize locally partial wetting and the wetting transition between nanostructures according to the surface tension of liquids (the variation is obtained by ethanol concentration modification). We can see that this method is extremely sensitive both to the level of liquid imbibition and to the impalement dynamic. We thus demonstrate the possibility to evaluate the critical surface tension of a liquid for which total wetting occurs according to the aspect ratio of the nanostructures. We also manage to identify intermediate states according to the height of the nanotexturation. Finally, our measurements revealed that the drop impalement depending on the surface tension of the liquid also depends on the aspect ratio of the nanostructures."

According to the news editors, the research concluded: "We do believe that our method may lead to new insights into nanoscale wetting characterization by accessing the dynamic mapping of the liquid imbibition under the droplet."

For more information on this research see: High-Frequency Acoustic for Nanostructure Wetting Characterization. Langmuir, 2014;30(25):7601-7608. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Langmuir - www.pubs.acs.org/journal/langd5)

The news editors report that additional information may be obtained by contacting S.Z. Li, IMEC, B-3001 Louvain, Belgium. Additional authors for this research include S. Lamant, J. Carlier, M. Toubal, P. Campistron, X.M. Xu, G. Vereecke, V. Senez, V. Thomy and B. Nongaillard (see also Nanostructures).

Keywords for this news article include: Europe, Louvain, Belgium, Nanoscale, Nanostructural, Nanostructures, Nanotechnology, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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