Knudsen gas provides nanobubble stability.

  title={Knudsen gas provides nanobubble stability.},
  author={James Richard Thorley Seddon and Harold J. W. Zandvliet and Detlef Lohse},
  journal={Physical review letters},
  volume={107 11},
We provide a model for the remarkable stability of surface nanobubbles to bulk dissolution. The key to the solution is that the gas in a nanobubble is of Knudsen type. This leads to the generation of a bulk liquid flow which effectively forces the diffusive gas to remain local. Our model predicts the presence of a vertical water jet immediately above a nanobubble, with an estimated speed of ∼3.3  m/s, in good agreement with our experimental atomic force microscopy measurement of ∼2.7  m/s. In… 

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Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2008

acknowledge funding from the European Community's Seventh Framework Programme (FP7/ 2007-2013) under Grant Agreement No

  • 235873 and from the Foundation for Fundamental Research on Matter (FOM), which is sponsored by the Netherlands Organization for Scientific Research (NWO)

J. Colloid Interface Sci

  • J. Colloid Interface Sci
  • 2004

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2011

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2001


  • Mat. 23, 133001
  • 2011


  • Rev. E 82, 056310
  • 2010