A flash of ultraviolet light sets off a chain reaction which hardens the whole object. more
To use all functions of this page, please activate cookies in your browser.
My watch list
my.chemeurope.com
my.chemeurope.com
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
Shaping Drops: Control over Stiction and Wetting
Some surfaces are wetted by water, others are water-repellent. TU Wien (Vienna), KU Leuven and the University of Zürich have discovered a robust surface whose adhesive and wetting properties can be switched using electricity. This remarkable result is featured on the cover of Nature magazine.
To investigate the wetting of the surface, an instrument was built specially for this purpose, in which a liquid drop is brought on the surface through a very thin glass tube. The drop is made bigger and smaller while at the same time its shape is recorded. Whether the drop shape is flat or more rounded depends on the properties of the surface.
Topics:
- drop shape
- wetting
- water contact angle
More about TU Wien
- Videos
-
News
Using ultra-low temperatures to understand high-temperature superconductivity
At low temperatures, certain materials lose their electrical resistance and conduct electricity without any loss - this phenomenon of superconductivity has been known since 1911, but it is still not fully understood. And that is a pity, because finding a material that would still have super ... more
Although the history of bitumen dates back to the third millennium BC, only little is known about its surface structure. Researchers from TU Wien are now shedding light on the nature of the bitumen surface using physicochemical analyses. While atomic force microscopy and scanning electron m ... more
Exotic superconductors: The Secret that wasn’t there
A single measurement result is not a proof - this has been shown again and again in science. We can only really rely on a research result when it has been measured several times, preferably by different research teams, in slightly different ways. In this way, errors can usually be detected ... more
