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Related Experiment Video

Updated: Jan 22, 2026

An Alternative to the Traditional Cold Pressor Test: The Cold Pressor Arm Wrap
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The cold Leidenfrost regime.

Philippe Bourrianne1, Cunjing Lv1, David Quéré1

  • 1Physique et Mécanique des Milieux Hétérogènes, UMR 7636 du CNRS, ESPCI, PSL Research University, 75005 Paris, France.

Science Advances
|July 2, 2019
PubMed
Summary
This summary is machine-generated.

Heating water-repellent surfaces enhances superhydrophobicity, leading to a lower Leidenfrost temperature. Surface texture controls the transition to a continuous levitating Leidenfrost regime, unlike on common solids.

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Area of Science:

  • Surface Science
  • Fluid Dynamics
  • Materials Science

Background:

  • Superhydrophobicity and the Leidenfrost phenomenon are distinct nonwetting surface behaviors.
  • Heating water-repellent materials unexpectedly lowers the Leidenfrost temperature of water.

Purpose of the Study:

  • To investigate how heat influences superhydrophobicity and the Leidenfrost effect.
  • To understand the underlying mechanisms of reduced Leidenfrost temperature on heated hydrophobic surfaces.
  • To explore the role of surface texture in controlling these phenomena.

Main Methods:

  • Experimental investigation of water behavior on heated superhydrophobic surfaces.
  • Analysis of heat transfer effects, including vapor condensation and spreading.
  • Characterization of surface texture's influence on nonwetting properties.

Main Results:

  • Heat enhances superhydrophobicity, enabling a 'cold Leidenfrost regime' with negligible water adhesion.
  • Contradictory effects of heat (sticking vs. lift) were observed and linked to surface texture.
  • A continuous transition to a levitating Leidenfrost regime was demonstrated, differing from conventional solids.

Conclusions:

  • Heat can significantly alter nonwetting surface properties, creating a 'cold Leidenfrost regime'.
  • Surface texture is a critical factor in controlling the transition to stable Leidenfrost states.
  • The findings offer new insights into manipulating fluid-surface interactions at elevated temperatures.