By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in General Science. According to news reporting from Zurich, Switzerland, by NewsRx journalists, research stated, "The controlled formation and handling of minute liquid volumes on surfaces is essential to the success of microfluidics in biology, chemistry, and materials applications. Even though current methods have demonstrated their potential in a variety of experimental assays, there remain significant difficulties concerning breadth of applicability, standardization, throughput, and economics."
The news correspondents obtained a quote from the research from the Swiss Federal Institute of Technology, "Here we introduce a unique microfluidic paradigm in which microscopic volatile droplets are formed, sustained, and manipulated in size and content at any desired spot on unpatterned substrates. Their sustainability is warranted by continuous replacement of the rapidly vaporizing sessile fluid through controlled equivalent volume deposition of smaller discrete liquid entities by an electrohydrodynamic nanodripping process. Using nanoparticle inks we show that the concentration of solutes in so-stabilized droplets can be linearly increased at isochoric conditions and user-defined rates. An intriguing insensitivity of the droplet shape toward surface heterogeneities ensures robustness and experimental reproducibility, even when handling attoliter quantities."
According to the news reporters, the research concluded: "The unique capabilities and technical simplicity of the presented method introduce a high degree of flexibility and make it pertinent to a diverse range of applications."
For more information on this research see: Open-atmosphere sustenance of highly volatile attoliter-size droplets on surfaces. Proceedings of the National Academy of Sciences of the United States of America, 2013;110(33):13255-13260. Proceedings of the National Academy of Sciences of the United States of America can be contacted at: Natl Acad Sciences, 2101 Constitution Ave NW, Washington, DC 20418, USA. (National Academy of Sciences - www.nasonline.org/; Proceedings of the National Academy of Sciences of the United States of America - www.nasonline.org/publications/pnas/)
Our news journalists report that additional information may be obtained by contacting P. Galliker, Swiss Fed Inst Technol, Lab Thermodynam Emerging Technol, Dept. of Mech & Proc Engn, CH-8092 Zurich, Switzerland. Additional authors for this research include J. Schneider, L. Ruthemann and D. Poulikakos (see also General Science).
Keywords for this news article include: Zurich, Europe, Switzerland, General Science
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2013, NewsRx LLC