Alexandria Digital Research Library

A Multiscale Study of Water via the Relative Entropy

Author:
Chaimovich, Aviel
Degree Grantor:
University of California, Santa Barbara. Chemical Engineering
Degree Supervisor:
Jacob Israelachvili and M. Scott Shell
Place of Publication:
[Santa Barbara, Calif.]
Publisher:
University of California, Santa Barbara
Creation Date:
2013
Issued Date:
2013
Topics:
Engineering, Chemical
Keywords:
Relative entropy
Molecular simulation
Isotropic water
Statistical mechanics
Hydrophobic interaction
Replication errors
Genres:
Dissertations, Academic and Online resources
Dissertation:
Ph.D.--University of California, Santa Barbara, 2013
Description:

Water, perhaps humanity's most notable liquid, plays a key role in a myriad of physical mechanisms. For example, it is commonly known that the unique medium makes oily droplets aggregate with each other (i.e., oil does not mix with water). Nevertheless, the peculiarities of such a rudimentary process have been a contentious issue for decades: computational predictions propose a weak oscillatory force, yet experimental measurements suggest a strong monotonic force. In this work, I offer a resolution for this discrepancy by invoking an informatic property termed the relative entropy. In particular, I develop a comprehensive framework via the relative entropy for modeling purposes, and I in turn show that the apparent discrepancy is in fact a multiscale phenomena: oily droplets tend to aggregate via a weak oscillatory force if they are small and via a strong monotonic force if they are large, with the crossover occurring on the order of a nanometer. As the water-driven aggregation of oil is inherently linked with biological assembly, this dissertation has significant ramifications in various pharmaceutical and medical applications.

Physical Description:
1 online resource (174 pages)
Format:
Text
Collection(s):
UCSB electronic theses and dissertations
ARK:
ark:/48907/f3833q04
ISBN:
9781303425004
Catalog System Number:
990040770110203776
Rights:
Inc.icon only.dark In Copyright
Copyright Holder:
Aviel Chaimovich
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