Ions, osmolytes, and polymers at aqueous interfaces : insights from molecular theory and simulations

Authors
Venkateshwaran, Vasudevan
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Other Contributors
Garde, Shekhar
Plawsky, Joel L., 1957-
García, Angel E.
Underhill, Patrick T.
Issue Date
2014-08
Keywords
Chemical engineering
Degree
PhD
Terms of Use
This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
Full Citation
Abstract
We present an extensive quantitative analysis of the pair level interactions between monovalent ions at a water vapor-liquid interface. Our results highlight the sensitivity of the strength of water-mediated interactions in the interfacial environment, and suggest that these interactions may play an even more important role at the interface compared to that in bulk water. The thermodynamic driving forces that govern such interactions and their role in interface-mediated self-assembly (of peptides, ionic surfactants, proteins, and other macromolecules) is also discussed. Extensions of this work to understand the structure, dynamics and assembly of model polymer molecules at hydrophobic surfaces is also presented. The physical picture developed herein combined with the recent results on how interfaces affect the strength of hydrophobic interactions form key elements of a framework for understanding and manipulating self-assembly in interfacial environments.
Description
August 2014
School of Engineering
Department
Dept. of Chemical and Biological Engineering
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection
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