Giant fluidic impedance of nanometer-sized water bridges: Shear capillary force at the nanoscale.
basic_science · Level V
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- Record sourced from PubMed, PMID 35854551.
- Also identified by DOI 10.1103/PhysRevE.105.065108.
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Abstract
We analytically show that the interfacial fluid's molecular dynamics of capillary bridges induces both elastic and dissipative forces to the shearing plane. Surprisingly, the nanometer-sized, liquid-solid contact line of the bridges exerts a giant "shear" force on the solid surface, which is 10^{5} higher than the usual viscous interaction and comparable to that of solid-solid direct-contact friction. These results are consistent with previously reported experimental data and may provide clues to longstanding questions on the apparent viscosity of the nanoconfined fluids.