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Related Experiment Video

Updated: Jun 8, 2026

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices
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Cutting ice: nanowire regelation.

Teemu Hynninen1, Vili Heinonen, Cristiano L Dias

  • 1Department of Physics, Tampere University of Technology, PO Box 692, FI-33101 Tampere, Finland. teemu.hynninen@tut.fi

Physical Review Letters
|September 28, 2010
PubMed
Summary
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Ice melts under pressure and refreezes when pressure is released, a process called regelation. This study uses molecular dynamics to show how a nanowire

Area of Science:

  • Physics
  • Materials Science
  • Chemistry

Background:

  • Ice exhibits regelation, melting under pressure and refreezing upon release.
  • A common demonstration involves a wire passing through ice.

Purpose of the Study:

  • To investigate the molecular mechanisms of regelation during nanowire cutting.
  • To understand how wire surface properties influence the regelation process.

Main Methods:

  • Molecular-dynamics simulations were employed.
  • A nanowire was simulated cutting through ice.

Main Results:

  • The transition from stationary to moving wire changed with increasing force.
  • Hydrophilic and hydrophobic wires exhibited different cutting behaviors.

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  • Surface wetting properties were identified as key factors.

    • Conclusions:

    • Molecular-dynamics simulations reveal the mechanism of nanowire-induced regelation.
    • Wire hydrophobicity significantly alters the ice-cutting and regelation dynamics.
    • Wetting properties dictate the transition from continuous to discontinuous ice cutting.