Universiteit Leiden

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This Week’s Discoveries | 25 October 2016

25 October 2016
Niels Bohrweg 2
2333 CA Leiden
De Sitterzaal

First Lecture

Development of Highly Selective and Reversible Diacylglycerol Lipase Inhibitors.

Freek Janssen (LIC)

Freek is a PhD-student in the Molecular Physiology group of Mario van der Stelt at LIC. He discovered drug-like molecules that specifically target enzymes involved in the formation of the endogenous cannabinoid 2-AG. Freek was the Dutch representative (nominated by the Farmacochemistry section of the KNCV) in the Young Medicinal Chemist Symposium (YMCS) organized by the European Federation of Medicinal Chemistry and won the YMCS competition for best oral presentation.

Second Lecture

Animating Matter with the Elastic Leidenfrost Effect

Scott Waitukaitis (LION)

Scott is a postdoc in the Biological & Soft Matter Physics group at LION. He received a VENI grant from NWO this spring.

Liquid droplets impacting on hot surfaces above the Leidenfrost temperature can squeeze out the vapor layer and enter the contact boiling regime. What happens to soft but vaporizable solids, such as hydrogel spheres, under such conditions? I will show how this combination leads to sustained bouncing dynamics. The key physics is the coupling between the sphere's elastic deformations and vaporization. Beyond being a new facet of the Leidenfrost effect, this phenomenon promises to be useful in fields such as fluid dynamics, microfluidics, and active matter.