Direct Measurement of the Elastohydrodynamic Lift Force at the Nanoscale
Direct Measurement of the Elastohydrodynamic Lift Force at the Nanoscale
We present the first direct measurement of the elastohydrodynamic lift force acting on a sphere moving within a viscous liquid, near and along a soft substrate under nanometric confinement. Using atomic force microscopy, the lift force is probed as a function of the gap size, for various driving velocities, viscosities, …