Themed collection Soft Matter Electrified

Electrowetting on dielectric (EWOD) involves actuating surfactant-laden droplets through electrical stimulus while the droplets lie on a deformable dielectric layer that covers the electrode.

Globular units with heterogeneous surface charge distributions display a liquid–liquid phase separation. The location of the critical point and their ability to bond depend on the interplay between surface pattern and net charge.

We show the surprising emergence of non-uniform charge distributions on shaken insulating spheres. The resulting inter-particle torques, coupled with the orientation dependent force, can substantially increase attraction.

Electrospraying is a method of atomizing fluids using a high voltage potential difference.

This study elucidates the electrical charge transport during electrospinning of weak polyelectrolyte (poly(acrylic acid) (PAA)) solutions by employing current emission measurements.

Water drops floating at an interface can be self-assembled and controlled using electrostatic effects. Uncharged drops can be moved around as desired, while charged drops exhibit spontaneous directed motion.

Sliding drops induce a bipolar current in subsurface electrodes beneath a hydrophobic substrate. We show how it depends on substrate properties and how it can be optimized for energy harvesting.