Capillary forces on nanowires

ORAL

Abstract

The capillary forces on nanowires have been measured by attaching them to the cantilever of an Atomic Force Microscope (AFM). The nanowires are immersed and retracted from a liquid/air interface. The entire capillary force curve is compared to continuum theory and molecular simulations. Nanowires with different diameters and chemistry and various liquids are investigated. Surface tension, contact angle hysteresis, and dynamical contact angles can be extracted under reasonable assumptions about how the contact line moves along the nanowires.

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Authors

  • Jun Ma

    • Johns Hopkins University

  • Shengfeng Cheng

    • Department of Physics and Astronomy, Johns Hopkins University
    • Johns Hopkins University

  • Jay Wallace

    • MACS Consulting

  • Patricia McGuiggan

    • Johns Hopkins University

  • Mark Robbins

    • Department of Physics and Astronomy, Johns Hopkins University
    • Johns Hopkins University