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Title:Imaging the dynamics of soft materials at microscale and nanoscale
Author(s):Xu, Cong
Director of Research:Granick, Steve
Doctoral Committee Chair(s):Chen, Qian
Doctoral Committee Member(s):Zuo, Jian-Min; Statt, Antonia
Department / Program:Materials Science & Engineerng
Discipline:Materials Science & Engr
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Soft Materials
Janus Colloids
Active Matter
Nanobubble
Abstract:Soft materials are materials that are soft. They can usually be deformed easily by thermal stresses or thermal fluctuations at about room temperature, which makes their dynamic behaviors of great interest and importance. In this thesis, imaging tools such as bright-field and dark-field optical microscopes and liquid-phase transmission electron microscope, have been utilized to capture the dynamics of three distinct yet typical soft materials in situ at different length scales: colloids, polymeric chains, and nanobubbles. While conventional interests have been focused on the equilibrium structures and properties of soft materials, we explore their non-equilibrium dynamics under external driving forces or agitations, such as electric fields, chemical gradients, and electron beam irradiation. Image processing, single particle tracking, and statistical analysis are combined to study the rich phenomena we observed.
Issue Date:2020-07-16
Type:Thesis
URI:http://hdl.handle.net/2142/108705
Rights Information:Copyright 2020 Cong Xu
Date Available in IDEALS:2020-10-07
Date Deposited:2020-08


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