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Friction anisotropy and asymmetry of a compliant monolayer induced by a small molecular tilt

Liley, M. and Gourdon, D. and Stamou, D. and Meseth, U. and Fischer, T. M. and Lautz, C. and Stahlberg, H. and Vogel, H. and Burnham, N. A. and Duschl, C.. (1998) Friction anisotropy and asymmetry of a compliant monolayer induced by a small molecular tilt. Science, Vol. 280, H. 5361. pp. 273-275.

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Official URL: http://edoc.unibas.ch/dok/A5842585

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Abstract

Lateral force microscopy in the wearless regime was used to study the friction behavior of a lipid monolayer on mica. In the monolayer, condensed domains with long-range orientational order of the lipid molecules were present. The domains revealed unexpectedly strong friction anisotropies and non-negligible friction asymmetries. The angular dependency of these effects correlated well with the tilt direction of the alkyl chains of the monolayer, as determined by electron diffraction and Brewster angle microscopy. The molecular tilt causing these frictional effects was less than 15 degrees, demonstrating that even small molecular tilts can make a major contribution to friction.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Structural Biology (Stahlberg)
UniBasel Contributors:Stahlberg, Henning
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Association for the Advancement of Science
ISSN:0036-8075
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:08 Jun 2012 06:55
Deposited On:08 Jun 2012 06:44

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