PatrickBestTalk

31.07.2009
Patrick wins the best talk award at the Nano- and Microfluidics workshop in Bad Honnef, Germany. He presented work of Simon Gruener on spontaneous imbibition dynamics of linear hydrocarbons (n-alkanes) in mesoporous silica. Congrats to both !

Optical Birefringence Study on Confined n-Hexane

17.07.2009
Surprisingly, spatially nano-confined liquid n-hexane is still an isotropic liquid: We did not find any hints of collective orientational order as a function of filling of glass capillaries with 7 nm mean diameter and 400 micrometer length. A combined optical birefringence/vapour sorption isotherm study reporting this message was published in Physical Review B today. The absence of any orientational order in the confined liquid state highlights the importance of an anisotropic crystallization process named after Percy W. Bridgman (a Harvard scholar and Nobel Laureate) for the occurence of preferred orientations upon solidification of n-hexane and medium-length n-alkanes in nanochannels of mesoporous silicon.

Capillary Rise of Water in Nanopores

22.06.2009
Study on capillary rise dynamics of water in hydrophilic nanopores published in Physical Review E. A ray-tracing movie which illustrates this spontaneous imbibition process in mesoporous silica glass (monolithic Vycor) can be downloaded here. It employs the Liquid-Surface-Simulation Macro package (LSSM) for POV-Ray by Tim Nik Wenclawiak.

EXIST-priME-Cup

05.06.2009
Anke Henschel und Simon Grüner sind gemeinsam mit René Berwanger aus der Arbeitsgruppe Pelster als Sieger aus dem Master Cup in Saarbrücken im Rahmen des EXIST-priME-Cup hervorgegangen.
Glückwunsch an die drei!