Electronic Theses and Dissertations

Identifier

6595

Date

2020

Document Type

Thesis

Degree Name

Master of Science

Major

Physics

Concentration

Materials Science

Committee Chair

Chenhui Peng

Committee Member

Firouzeh Sabri

Committee Member

Muhammad S Jahan

Abstract

The study of controlling the moleculat self-assembly of aqueous soft matter is a fundamental scheme across multiple disciplines such as physics, chemistry, biology, and materials science. In this work, we use liquid-crystal polymer networks (LCNs) to control the superstrucutre of one aqueous soft material called lyotropic choromonic liquis crystals(LCLC), which shows spontanenous orientational order by stacking the plank-like molecules into elongated aggregates. We synthesize a layer of patterned LCN flims by a nematic liquid-crystal host in which the spatially varying molecular orientations are predesigned by plasmonic photopatterning. We demonstrate that the LCLC aggregates are oriented parallel to the polymer filaments of the LCN film. This pattern aqueous soft material shows immediate application for controlling the dynamics of swimming bacteria. The demonstrated control of the supramolecular assembly of aqueous soft matter by using a stimuli-responsive LCN film will find applications in designing dynamic advacned materials for bioengineering applicaitons..

Comments

Data is provided by the student.

Library Comment

Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.

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