by Lam King Shun. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1998. / Includes bibliographical references (p. 103-107). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese. / by Lam King Shun.

Wong Chiu Tai, Andrew = 粒子懸浮液的自結合和場引發結合 / 黃昭泰. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 70-73). / Text in English; abstracts in English and Chinese. / Wong Chiu Tai, Andrew = Li zi xuan fu ye de zi jie he he chang yin fa jie he / Huang Zhaotai. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Self assembly --- p.1 / Chapter 1.1.1 --- What is self assembly? --- p.1 / Chapter 1.1.2 --- Recent works --- p.1 / Chapter 1.2 --- Field induced assembly --- p.2 / Chapter 1.2.1 --- What is field induced assembly? --- p.2 / Chapter 1.2.2 --- Recent works --- p.3 / Chapter 1.3 --- Objective of the thesis --- p.4 / Chapter 2 --- Self Assembly of Binary Colloidal Alloys --- p.6 / Chapter 2.1 --- Interaction between colloidal suspensions --- p.7 / Chapter 2.1.1 --- Van der Waals interaction energy between two spheres --- p.7 / Chapter 2.1.2 --- Screened Coulomb Repulsion --- p.9 / Chapter 2.1.3 --- Derjaguin-Landau-Verwey-Overbeek potential --- p.12 / Chapter 2.1.4 --- DNA-mediated Colloidal Interaction --- p.13 / Chapter 2.2 --- 2D Molecular Dynamics Simulation --- p.14 / Chapter 2.2.1 --- One type of particles with attractive force --- p.16 / Chapter 2.2.2 --- Two type of particles --- p.18 / Chapter 2.2.3 --- Results --- p.19 / Chapter 2.2.4 --- Conclusion --- p.23 / Chapter 2.3 --- 3D Molecular Dynamics Simulation --- p.25 / Chapter 2.3.1 --- One type of particles with attractive force --- p.26 / Chapter 2.3.2 --- Two type of particles --- p.27 / Chapter 2.3.3 --- Results --- p.28 / Chapter 2.3.4 --- Conclusion --- p.32 / Chapter 3 --- Electrorheological Rotors --- p.34 / Chapter 3.1 --- Formalism --- p.35 / Chapter 3.2 --- MD Simulations and Results --- p.38 / Chapter 3.3 --- Discussion and conclusion --- p.39 / Chapter 4 --- Electrorheological Suspensions in Rotating Fields --- p.42 / Chapter 4.1 --- Long-range rotating field simulation --- p.43 / Chapter 4.1.1 --- Simulation method --- p.43 / Chapter 4.1.2 --- Result --- p.46 / Chapter 4.2 --- Uniform Rotating Shear Flow --- p.49 / Chapter 4.3 --- Discussion and conclusion --- p.50 / Chapter 5 --- Comparison between many body and multiple image effect --- p.53 / Chapter 5.1 --- Multiple image method --- p.54 / Chapter 5.2 --- Anisotropic many-body-MID model --- p.56 / Chapter 5.3 --- Computer simulation in the many-body-DID model --- p.59 / Chapter 5.4 --- Discussion and conclusion --- p.60 / Chapter 6 --- Conclusion --- p.68 / Bibliography --- p.70 / Chapter A --- Derivation of multiple image expression --- p.74 / Chapter A.1 --- Image of a point dipole on a sphere --- p.74 / Chapter A.2 --- Multiple images of induced dipole --- p.74 / Chapter B --- Derivation of anisotropic Maxwell-Garnett Approximation --- p.80 / Chapter B.1 --- Isotropic Maxwell-Garnett Approximation --- p.80 / Chapter B.2 --- Anisotropic Maxwell-Garnett Approximation --- p.82

Gong, Xiangjun = 新型全內反射顯微鏡的搭建及其在膠體研究中的應用 / 龔湘君. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references. / Abstracts in English and Chinese. / Gong, Xiangjun = Xin xing quan nei fan she xian wei jing de da jian ji qi zai jiao ti yan jiu zhong de ying yong / Gong Xiangjun. / Abstract (Chinese) --- p.i / Abstract --- p.iii / Contents --- p.v / Acknowledgement --- p.vii / Chapter Chapter 1 --- Introduction to Total Internal Reflection Microscopy (TIRM) / Chapter 1.1 --- History of TIRM --- p.1 / Chapter 1.2 --- Instrumentation --- p.1 / Chapter 1.2.1 --- Apparatus --- p.1 / Chapter 1.2.2 --- Optical Tweezer --- p.3 / Chapter 1.3 --- The principle of the technique --- p.5 / Chapter 1.3.1 --- Total Internal Reflection --- p.5 / Chapter 1.3.2 --- Details on Scattering of the Evanescent Wave --- p.7 / Chapter 1.3.3 --- Data analysis --- p.14 / Chapter 1.3.4 --- A typical potential energy profile --- p.17 / Chapter 1.4 --- Noise Analysis and Removal Method --- p.19 / Chapter 1.4.1 --- Noise analysis --- p.19 / Chapter 1.4.2 --- Noise removal: low-pass filtering --- p.22 / Chapter 1.5 --- Other techniques on force measurement --- p.25 / Chapter 1.6 --- References --- p.27 / Chapter Chapter 2 --- Experiments on TIRM Calibration / Chapter 2.1 --- Introduction --- p.30 / Chapter 2.2 --- Pre-Experimental Section --- p.30 / Chapter 2.2.1 --- Glass Surface Preparation Methods --- p.30 / Chapter 2.2.2 --- Experimental Setup --- p.33 / Chapter 2.3 --- Calibration Results and Discussion --- p.36 / Chapter 2.4 --- Conclusions --- p.42 / Chapter 2.5 --- References --- p.43 / Chapter Chapter 3 --- TIRM investigation on polymer-induced collodial interactions / Chapter 3.1 --- Introduction to polymer-induced forces --- p.45 / Chapter 3.1.1 --- Non-absorbing case - depletion force --- p.46 / Chapter 3.1.2 --- Attached polymer layers --- p.49 / Chapter 3.2 --- Applications of TIRM in polymer-mediated colloidal interactions --- p.54 / Chapter 3.2.1 --- Measurements on depletion force --- p.54 / Chapter 3.2.2 --- Measurements on Steric Forces --- p.56 / Chapter 3.3 --- Direct measurement of thermosensitive Poly(N-isopropylacrylamide)-mediated colloidal interactions with TIRM --- p.56 / Chapter 3.3.1 --- Introduction --- p.56 / Chapter 3.3.2 --- Experimental Section --- p.57 / Chapter 3.3.3 --- Results and Discussion --- p.60 / Chapter 3.3.4 --- Conclusions --- p.73 / Chapter 3.4 --- References --- p.74 / Publication List --- p.77

No description available.

"November 2002. / Includes bibliographical references (leaves 258-275) / xxi, 275 leaves, [8 p.] : ill. (some col.), plates (col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, School of Earth and Environmental Sciences, 2003

Thesis (Ph. D.)--University of Delaware, 2006. / Principal faculty advisor: Darrin J. Pochan, Dept. of Materials Science & Engineering. Includes bibliographical references.

No description available.

No description available.

In this dissertation we used tunable particle-particle and particle-substrate attraction to achieve reversible two-dimensional crystallization of colloids on homogeneous and patterned substrates. Total internal reflection and video microscopy techniques were used to quantify the interparticle and particle-substrate interactions in these colloidal systems. Equilibrium and dynamic simulations were then utilized to link these colloidal interactions to the experimental colloidal phase behaviour. The importance of the nature of the attractive interaction in successfully crystallizing colloids has also been documented. The first set of experiments demonstrates the use of temperature and specific ion effects to reversibly control the net particle-substrate van der Waals (vdW) attraction. Colloidal stabilization was achieved via the use of adsorbed polymer brush layers. By using evanescent wave microscopy, we directly and precisely measured how temperature and specific ion effects control the dimensions of adsorbed polymer layers and hence the net van der Waals attraction in between the colloids and the substrate. However, the magnitude of the van der Waals attraction decays very rapidly with increasing surface separation and is therefore not conducive to the self assembly of colloidal crystals. We successfully used thermoresponsive polymer nanoparticles to control the depletion attraction between micron sized silica particles and thereby induced reversible crystallization of the micron sized silica colloids on homogeneous substrates. Video and evanescent wave microscopy techniques were used to measure the nanoparticle-induced attractive interaction as a function of temperature. The experimentally observed phase behaviour was verified via simulations that utilized knowledge of the measured colloidal depletion interactions. Finally, patterned surface topologies were used to position attractive colloidal crystals. Simulations were used to link the measured colloidal interactions to experimental phase behaviour as well as substrate topology. An extension of the concepts developed in this dissertation might suggest a general strategy to assemble colloidal particles into robust and annealable crystals contributing to the fabrication of photonic bandgap materials.

Understanding dynamics of colloidal dispersions is important for several applications ranging from coatings such as paints to growing colloidal crystals for photonic bandgap materials. The research outlined in this dissertation describes the use of Monte Carlo and Stokesian Dynamic simulations to model colloidal dispersions, and the development of theoretical expressions to quantify and predict dynamics of colloidal dispersions. The emphasis is on accurately modeling conservative, Brownian, and hydrodynamic forces to model dynamics of colloidal dispersions. In addition, we develop theoretical expressions for quantifying self-diffusion in colloids interacting via different particle-particle and particle-wall potentials. Specifically, we have used simulations to quantitatively explain the observation of anomalous attraction between like-charged colloids, develop a new criterion for percolation in attractive colloidal fluids, and validate the use of analytical expressions for quantifying diffusion in interfacial colloidal fluids. The results of this work contribute to understanding dynamics in interfacial and bulk colloidal fluids.