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.

Authors

  • D.A. Saville

  • S. Korkut

  • H.F. Poon

  • C.-H. Chen

  • I.A. Aksay

    Department of Chemical Engineering, Princeton University, Princeton, NJ 08544