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Updated: Jun 14, 2026

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures
Published on: November 14, 2025
Viscosity-dependent liquid slip at molecularly smooth hydrophobic surfaces
1Department of Physics, Cardwell Hall, Kansas State University, Manhattan, Kansas 66506-2601, USA.
Abstract:
Colloidal probe atomic force microscopy is used to study the slip behavior of 18 Newtonian liquids from two homologous series, the n-alkanes and n-alcohols, at molecularly smooth hydrophobic n-hexadecyltrichlorosilane coated surfaces. We find that the slip behavior is governed by the bulk viscosity eta of the liquid, specifically, the slip length b approximately etax with x approximately 0.33. Additionally, the slip length was found to be shear rate independent, validating the use of Vinogradova slip theory in this work.
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