NDLI: Pathways to dewetting in hydrophobic confinement

Content Provider	PubMed Central
Author	Remsing, Richard C. Xi, Erte Srivathsan, Vembanur Sharma, Sumit Debenedetti, Pablo G. Garde, Shekhar Patel, Amish J.
Abstract	Dewetting in hydrophobic confinement plays an important role in diverse phenomena, ranging from protein folding and assembly, to the heterogeneous nucleation of vapor bubbles and superhydrophobicity. Using molecular simulations, we find that dewetting proceeds through the formation of isolated cavities adjacent to one of the confining surfaces. These isolated cavities are stabilized by enhanced water density fluctuations, and their growth is uphill in free energy. Upon growing to a certain size, the isolated cavities transition abruptly into supercritical vapor tubes that span the confined region, and grow spontaneously. Consequently, this nonclassical pathway results in lower free energy barriers than anticipated by macroscopic theory, with important implications for the kinetics of dewetting and hence for water-mediated self-assembly.
Related Links	http://dx.doi.org/10.1073/pnas.1503302112
Ending Page	8186
Page Count	6
Starting Page	8181
File Format	PDF
ISSN	00278424
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	27
Volume Number	112
Language	English
Publisher	National Academy of Sciences
Publisher Date	2015-07-07
Access Restriction	Open
Rights Holder	National Academy of Sciences
Subject Keyword	General Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Pathways to dewetting in hydrophobic confinement.

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