Deploying Liquid Filaments and Suspensions with an Electrohydrodynamic Liquid Bridge
ORAL
Abstract
We show that a dynamic liquid bridge can be formed by deploying the filament issuing from a Taylor Cone onto a surface with the nozzle and surface held at different electric potentials. This configuration differs sharply form the familiar `electrospinning' configuration where the filament whips violently. Nevertheless, although the aspect ratio (length/diameter) exceeds the Plateau limit by more than two orders of magnitude the bridge is stable. Here we report on the stability characteristics and show that such a bridge can be used to `print' sub-micron scale features on a moving surface with both clear fluids and suspensions.
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Authors
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D.A. Saville
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S. Korkut
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H.F. Poon
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C.-H. Chen
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I.A. Aksay
Department of Chemical Engineering, Princeton University, Princeton, NJ 08544