Flow focusing

<p>Flow focusing in <a href="/facts/Fluid_dynamics/y7uzSCfg">fluid dynamics</a> is a <a href="/facts/Technology/9Uav5WVR">technology</a> whose aim is the production of drops or bubbles by straightforward <a href="/facts/Hydrodynamic/y7uzSCfg">hydrodynamic</a> means. The output is a dispersed liquid or gas, frequently in the form of a fine <a href="/facts/Aerosol/X1jXFLp2">aerosol</a> or an <a href="/facts/Emulsion/YMSqSCuH">emulsion</a>. No other driving force is required, apart from traditional pumping, a key difference with other comparable technologies, such as <a href="/facts/Electrospray/uAEAkoFJ">electrospray</a> (where an <a href="/facts/Electric_field/tt4MooBs">electric field</a> is needed). Both flow focusing and electrospray working in their most extensively used regime produce high quality sprays composed by homogeneous and well-controlled-size droplets. Flow focusing was invented by Prof. Alfonso M. Gañan-Calvo (who now teaches at ETSI in the University of Seville) in 1994, patented in 1996, and published for the first time in 1998.
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Flow focusing open-in-new

Flow focusing