Document Detail


Cutting ice: nanowire regelation.
MedLine Citation:
PMID:  20868115     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Even below its normal melting temperature, ice melts when subjected to high pressure and refreezes once the pressure is lifted. A classic demonstration of this regelation phenomenon is the passing of a thin wire through a block of ice when sufficient force is exerted. Here we present a molecular-dynamics study of a nanowire cutting through ice to unravel the molecular level mechanisms responsible for regelation. In particular, we show that the transition from a stationary to a moving wire due to increased driving force changes from symmetric and continuous to asymmetric and discontinuous as a hydrophilic wire is replaced by a hydrophobic one. This is explained at the molecular level in terms of the wetting properties of the wire.
Authors:
Teemu Hynninen; Vili Heinonen; Cristiano L Dias; Mikko Karttunen; Adam S Foster; Tapio Ala-Nissila
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-08-19
Journal Detail:
Title:  Physical review letters     Volume:  105     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-09-27     Completed Date:  2011-01-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  086102     Citation Subset:  IM    
Affiliation:
Department of Physics, Tampere University of Technology, PO Box 692, FI-33101 Tampere, Finland. teemu.hynninen@tut.fi
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MeSH Terms
Descriptor/Qualifier:
Gels
Hydrodynamics
Hydrophobic and Hydrophilic Interactions
Ice*
Molecular Dynamics Simulation*
Nanowires / chemistry*
Chemical
Reg. No./Substance:
0/Gels; 0/Ice

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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