2026-09-21T05:11:21Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/29467 2023-07-10 col_2142_5131 col_2142_8859 com_2142_5130 com_2142_8858 com_2142_234

Luijten, Erik Granick, Steve Luijten, Erik Dahmen, Karin A. Hubler, Alfred W. Whitmer, Jonathan K. 2012-02-01T00:47:32Z 2012-02-01T00:47:32Z 2014-02-01T11:00:29Z 2012-02-01T00:47:32Z 2011-12 In this dissertation, I present research into the dynamics and assembly of colloidal particles. This involves investigations into single particle dynamics, collective dynamics of assembled clusters, and thermodynamic studies of colloidal superstructure formation. To do this, I have utilized a combination of many simulation and theoretical techniques. Chapter 2 presents a study I have done of the methods in which to implement hydrodynamics into a mesoscopic coarse-grained solvent model (Multiparticle Collision Dynamics). This is done in order that colloidal particles may be studied with hydrodynamics (as is presented in Chapters 4 and 8) in the proper limits. Chapter 3 presents some general considerations for the study of kinetically arrested colloidal gels, which are studied in more detail in Chapters 4 and 5 through molecular dynamics simulations. Chapter 4 considers the structures formed by colloidal particles interacting attractively interact in solvent, while Chapter 5 examines sediment structures formed by attractive particles and their clusters. In Chapter 6, I examine how the presence of patches on the surface of colloidal particles can influence their assembly into superstructures, and the interesting dynamics that can develop in dense systems of such particles, as well as the thermodynamics of specific structure assembly. Further, in Chapter 7, I explain how prototypical two-faced Janus colloids form into elongated helical structures (which are not global free-energy minima) through kinetic pathway selection. Finally, in Chapter 8, I examine how hydrodynamics influences the dynamics of a Janus particle having stick–slip boundary conditions, and examine how this might influence the conformations of clusters, presenting a way to utilize hydrodynamic flows in order to control particle orientations in suspension processing and the manufacture of composite materials. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-09-13T21:29:59Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Whitmer_Jonathan.pdf: 5630320 bytes, checksum: c9a42ac08353ef41e284f0659a24f333 (MD5) Made available in DSpace on 2012-02-01T00:47:32Z (GMT). No. of bitstreams: 2 Whitmer_Jonathan.pdf: 5630320 bytes, checksum: c9a42ac08353ef41e284f0659a24f333 (MD5) license.txt: 4066 bytes, checksum: 3a665ddffb380956053910bde892adad (MD5) Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram (wingram2@illinois.edu) on 2012-02-01T00:50:37Z Item is restricted until 2014-02-01T00:50:07Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2014-02-01T11:00:28Z Item was in collections: Graduate Theses and Dissertations at Illinois (ID: 204) Dissertations and Theses - Physics (ID: 445) No. of bitstreams: 3 Whitmer_Jonathan.pdf: 5630320 bytes, checksum: c9a42ac08353ef41e284f0659a24f333 (MD5) license.txt: 4066 bytes, checksum: 3a665ddffb380956053910bde892adad (MD5) Whitmer_Jonathan.pdf.txt: 313117 bytes, checksum: 694dfc658f51f6c538a9a249a7a885b8 (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2014-02-01T11:00:29Z http://hdl.handle.net/2142/29467 en Copyright 2011 Jonathan Kent Whitmer. All rights reserved. Molecular Dynamics Monte Carlo Janus Particles Multiparticle Collision Dynamics (MPC) Stochastic Rotation Dynamics (SRD) hydrodynamics clusters depletion potential Gels directed assembly self-assembly flow control Dynamics and assembly of colloidal particles Physics 1244 Physics 0240 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Physics -UIUC 10KS0240PHD