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Diamond stabilization of ice multilayers at human body temperature

Alexander D. Wissner-Gross and Efthimios Kaxiras
Phys. Rev. E 76, 020501(R) – Published 27 August 2007

Abstract

Diamond is a promising material for wear-resistant medical coatings. Here we report a remarkable increase in the melting point of ice resting on a diamond (111) surface modified with a submonolayer of Na+. Our molecular dynamics simulations show that the interfacial ice bilayer melts at a temperature 130K higher than in free ice, and relatively thick ice films (2.6nm at 298K and 2.2nm at 310K) are stabilized by dipole interactions with the substrate. This unique physical effect may enable biocompatibility-enhancing ice overcoatings for diamond at human body temperature.

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  • Received 13 February 2007

DOI:https://doi.org/10.1103/PhysRevE.76.020501

©2007 American Physical Society

Authors & Affiliations

Alexander D. Wissner-Gross1 and Efthimios Kaxiras1,2

  • 1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
  • 2School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA

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Issue

Vol. 76, Iss. 2 — August 2007

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