Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Reduced effective viscosity ηeff/ηs (equal to enhancement of shear stress σbrush/σbare) as a function of distance D between surfaces in logarithmic coordinates. Charges on polyions and mobile ions are not shown, brush interpenetration regions are shadowed gray, the gap of laminar solvent flow with width ΔD + 2ξh is shadowed blue. Regions with sharp increase in reduced effective viscosity ηeff/ηs are shadowed pink.
