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IRTG / Soft Matter Science
Freiburger Materialforschungszentrum
Stefan-Meier-Str. 21
79104 Freiburg, Germany

Contact: Jana Husse

+49 761 203 678 34
softmattergraduate[at]uni-freiburg.de


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You are here: Home Events Prof. Thorsten Hugel "Friction and Adhesion in the Nanoworld"

Prof. Thorsten Hugel "Friction and Adhesion in the Nanoworld"

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Institute of Physical Chemistry, University of Freiburg, Germany

What
  • Seminar
When Dec 03, 2014
from 02:15 PM to 03:00 PM
Where Seminarraum A, FMF, Stefan-Meier-Str. 21, Freiburg
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Macroscopic observations have led to a couple of phenomenological friction laws, such as Amontons’ law, the Rouse model, or Stokes’ law. Our atomic force microscopy (AFM) based nanoscale measurements with various single polymers as probes necessitate an additional friction mechanism, which we term desorption stick. We discuss how nanoscale friction is related to normal force, polymer length, velocity and adhesion [1-2]. In addition, we investigate friction mechanisms for articular cartilage, including lubrication and wear, by a combination of AFM and fluorescence based experiments.

[1] Balzer et al., Angew. Chem. Int. Ed. 52, 25, 6541 (2013)
[2] Krysiak et al., J. Am. Chem. Soc.  136, 688 (2014)
 

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