A comparison of experimental images and force spectra with their simulated counterparts shows that intermolecular contrast arises from repulsive tip-sample interactions whose interpretation can be ...

This is a novel force generation mechanism of actomyosin. An actin filament (F-actin) produces an electric field (black arrows) as high as 100 MV/m around F-actin due to its negative surface charges.

(Image: Max Planck Institute for Iron Research ... the Surface Force Apparatus will remain an indispensable tool for unraveling the mysteries of intermolecular forces and developing new materials and ...