By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Materials Science. According to news reporting originating in Philadelphia, Pennsylvania, by VerticalNews journalists, research stated, "Nature uses a variety of strategies to tune wetting behavior for biological applications. By artificially mimicking these strategies, a variety of different wetting conditions can be achieved."
The news reporters obtained a quote from the research from Drexel University, "Numerous examples exist of designed surfaces that can mimic the wetting behavior of lotus leaves or rose petals, but few surfaces that may reversibly transition between the two have been reported. In this paper, a combination of topological control over conductive, carbon-based nanomaterials and low surface energy coating was used to tune the wetting properties between 'lotus' and 'rose.' The topological control was imparted by a hierarchical 'nanohybrid shish kebab' structure, which uses solution-grown polymer single crystals on carbon nanotubes to tune the surface roughness of the latter. The low surface energy polytetrafluoroethylene (PTFE) coating was deposited by the initiated chemical vapor deposition technique. Application of electric potential on these unique nanostructures allows the surfaces to reversibly transition between 'lotus' and 'rose' behavior. A further irreversible transition between 'rose' and the fully wetted Wenzel wetting state was also predicted and shown."
According to the news reporters, the research concluded: "These materials show remarkable promise for lab-on-a-chip devices and surface passivation for biological studies."
For more information on this research see: Electric Field-Induced, Reversible Lotus-to-Rose Transition in Nanohybrid Shish Kebab Paper with Hierarchical Roughness. ACS Applied Materials & Interfaces, 2013;5(22):12089-12098. ACS Applied Materials & Interfaces can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; ACS Applied Materials & Interfaces - www.pubs.acs.org/journal/aamick)
Our news correspondents report that additional information may be obtained by contacting E.D. Laird, Drexel University, Dept. of Chem & Biol Engn, Philadelphia, PA 19104, United States. Additional authors for this research include R.K. Bose, H. Qi, K.K.S. Lau and C.Y. Li.
Keywords for this news article include: Philadelphia, Pennsylvania, United States, Materials Science, North and Central America
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