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Research Article

Cutting a Drop of Water Pinned by Wire Loops Using a Superhydrophobic Surface and Knife

  • Ryan Yanashima,

    Affiliation: Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona, United States of America

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  • Antonio A. García mail,

    tony.garcia@asu.edu

    Affiliation: School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona, United States of America

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  • James Aldridge,

    Affiliation: Department of Physics and Astronomy, Youngstown State University, Youngstown, Ohio, United States of America

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  • Noah Weiss,

    Affiliation: Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona, United States of America

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  • Mark A. Hayes,

    Affiliation: Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona, United States of America

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  • James H. Andrews

    Affiliation: Department of Physics and Astronomy, Youngstown State University, Youngstown, Ohio, United States of America

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  • Published: September 24, 2012
  • DOI: 10.1371/journal.pone.0045893

Reader Comments (2)

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Videos available

Posted by Mietchen on 26 Sep 2012 at 05:23 GMT

video footage
http://plosone.org/article/info:doi/10.1371/journal.pone.0045893#pone-0045893-g002

The video footage referred to in Fig. 2 is available from http://www.public.asu.edu/~mhayes/research_interests.html (WebCite copy at http://www.webcitation.org/6AxTRfyFc ) and has been archived at http://commons.wikimedia.org/wiki/File:Cutting_a_water_droplet_using_a_superhydrophobic_knife_on_superhydrophobic_surfaces.ogv .

For comparison, a video of an attempt to cut a water droplet without superhydrophobic equipment is available from the same source and archived at http://commons.wikimedia.org/wiki/File:Water_droplet_surviving_an_attempt_to_be_cut_by_a_knife.ogv .

Thanks to the authors for providing these additional materials.

No competing interests declared.

RE: Videos available

ryanashi replied to Mietchen on 26 Sep 2012 at 14:12 GMT

Mietchen- The second video you refer to DOES use superhydrophobic equipment, it is using the same superhydrophobic blade and surface as the other video as well as the figures in the article. The difference that leads to the drop not splitting is the separation distance between the hoops is not great enough such that the drop bounces back to it's original shape after the superhydrophobic blade is lifted.

-The authors

No competing interests declared.