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Control of the vibration damping through surface functionalization of a shear force probe
Author(s) -
Vaccaro L.,
Ulrich W.P.,
Duschl C.,
MarquisWeible F.
Publication year - 2001
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.2001.00823.x
Subject(s) - monolayer , alkyl , surface modification , materials science , shear (geology) , shear force , vibration , langmuir–blodgett film , surface forces apparatus , surface (topology) , surface force , nanotechnology , chemical physics , composite material , atomic force microscopy , chemistry , mechanics , acoustics , physics , organic chemistry , geometry , mathematics
Shear force mapping on thiolipid Langmuir–Blodgett monolayers probed with Al‐coated tips leads to a contrast highly dependent on the monolayer molecular organization, which does not correspond to the topographical relief of the sample. The use of functionalized surface probes offers the possibility to better control the probe‐to‐sample interaction. In addition, hydrophilic surface probes are totally insensitive to alkyl chain arrangements in the monolayer. Hydrophobic probes, instead, can be chosen to map shear force on soft samples in liquid environment, since their mechanical properties are not influenced by the surrounding liquid.