Contact electrification in aerosolized monodispersed silica microspheres quantified using laser based velocimetry

Electrostatic self-assembly of polystyrene microspheres by using chemically directed contact electrification.

Herein we describe a process—based on contact electrification and electrostatic interactions—that directs the selfassembly of chemically modified polystyrene microspheres to form three-dimensional microstructures. When two solid surfaces are brought into contact and separated, charge is often transferred from one surface to the other in a process known as contact electrification. 2] We can pred...

Supporting Information for Electrostatic Self-Assembly of Polystyrene Microspheres Using Chemically-Directed Contact Electrification

Contact electrification studies using atomic force microscope techniques

Contact electrification measurements using atomic force microscopy techniques were performed using micrometer-sized spheres made of polystyrene and flat substrates of either freshly cleaved, highly oriented pyrolytic graphite ~HOPG! or a 0.2-mm-thick Au@111# film grown on mica. The polystyrene/HOPG interaction exhibited significant electrostatic charging when compared to the polystyrene/Au syst...

Contact electrification between identical materials.

Contact electrification (CE), the transfer of charge between two surfaces that are brought into contact and then separated, plays a central role in several useful technologies, such as photocopying, laser printing, and electrostatic separation methods, but is also responsible for the build-up of charge leading to electrical shocks, explosions, mechanical jams, or damage of electronic equipment....

Biomimetic silica microspheres in biosensing.

Lipid vesicles spontaneously fuse and assemble into a lipid bilayer on planar or spherical silica surfaces and other substrates. The supported lipid bilayers (SLBs) maintain characteristics of biological membranes, and are thus considered to be biomembrane mimetic systems that are stable because of the underlying substrate. Examples of their shared characteristics with biomembranes include late...