Magnetic Surfaces and Uses Thereof
Droplet manipulation on a surface is a crucial phenomenon in a broad spectrum of disciplines from energy and water systems, chemical micro-reactors, droplet-based microfluidics to biosciences. In these embodiments, droplet manipulation is required for transporting, guiding, removing, splitting, merging, or trapping of droplets for intended physical and chemical interactions. A variety of approaches have been developed for controlled droplet manipulation including surface tension-driven convection (thermal, chemical and electrical), vibration, dielectrophoresis (DEP), superhydrophobic tracks, electrically-tunable defects, acoustic dropet actuation, optoelectrowetting, vapor-assisted motion. However, there are several limitations on these approaches including custom fabrication of the solid surface (e.g. physical or chemical modifcation and micro/nano fabrication) and enhanced friction by pinning and hysteresis of the droplet on a solid surface. Here, we report a new paradigm in remote droplet manipulation with high mobility and no need for custom-fabrication of the surface. This platform provides a universal approach for droplet manipulation independent of viscosity of the liquid droplet.
App Type | Case No. | Country | Patent/Publication No. | |
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Inquire | National Phase | 2017-004 | United States | 11,302,467 |