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@ARTICLE{Kovalev:201825,
      author       = {Kovalev, Alexander E and Dening, Kirstin and Persson, Bo
                      and Gorb, Stanislav N},
      title        = {{S}urface topography and contact mechanics of dry and wet
                      human skin},
      journal      = {Beilstein journal of nanotechnology},
      volume       = {5},
      issn         = {2190-4286},
      address      = {Frankfurt, M.},
      publisher    = {Beilstein-Institut zur Förderung der Chemischen
                      Wissenschaften},
      reportid     = {FZJ-2015-04119},
      pages        = {1341 - 1348},
      year         = {2014},
      abstract     = {The surface topography of the human wrist skin is studied
                      by using optical and atomic force microscopy (AFM) methods.
                      By using these techniques the surface roughness power
                      spectrum is obtained. The Persson contact mechanics theory
                      is used to calculate the contact area for different
                      magnifications, for the dry and wet skin. The measured
                      friction coefficient between a glass ball and dry and wet
                      skin can be explained assuming that a frictional shear
                      stress σf ≈ 13 MPa and σf ≈ 5 MPa, respectively, act
                      in the area of real contact during sliding. These frictional
                      shear stresses are typical for sliding on surfaces of
                      elastic bodies. The big increase in friction, which has been
                      observed for glass sliding on wet skin as the skin dries up,
                      can be explained as result of the increase in the contact
                      area arising from the attraction of capillary bridges.
                      Finally, we demonstrated that the real contact area can be
                      properly defined only when a combination of both AFM and
                      optical methods is used for power spectrum calculation.},
      cin          = {IAS-1 / PGI-1},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
      pnm          = {424 - Exploratory materials and phenomena (POF2-424)},
      pid          = {G:(DE-HGF)POF2-424},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000344098700001},
      doi          = {10.3762/bjnano.5.147},
      url          = {https://juser.fz-juelich.de/record/201825},
}