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Theory of hydrostatic lubrication for polymer hydrogel-coated surfaces with excess salt
1Department of Physics, Northeastern University, Boston, Massachusetts 02115, USA. j.sokoloff@neu.edu
The Journal of Physical Chemistry. B
|March 12, 2011
Abstract:
It is argued on the basis of a solution of the Poisson-Boltzmann equation and scaling arguments that for arbitrary salt concentration, the overwhelming majority of the regions of contact of two hydrogel-coated surfaces should be separated by a thin fluid layer. This is likely to be one of the mechanisms responsible for their excellent lubricating capability.

