Synthesis and Assembly of Anisotropic Ellipsoidal Particles.

Colloids;Anisotropy;Janus Particles;Shape Anisotropy;Self-assembly;Bulk Assembly;Chemical Engineering;Materials Science and Engineering;Engineering;Macromolecular Science & Engineering

Shah, Aayush AmitMonroe, Charles W. ;

University of Michigan

关键词: Colloids;    Anisotropy;    Janus Particles;    Shape Anisotropy;    Self-assembly;    Bulk Assembly;    Chemical Engineering;    Materials Science and Engineering;    Engineering;    Macromolecular Science & Engineering;   

Others  :  https://deepblue.lib.umich.edu/bitstream/handle/2027.42/107255/aayushs_1.pdf?sequence=1&isAllowed=y

瑞士|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

We create complex non-close packed assemblies from ellipsoidal anisotropic particles using external electric fields in this dissertation. Spherical colloidal particles have long been self-assembled into close-packed 2-D and 3-D ordered structures, while external fields have been used to accelerate their self-assembly as well as to alter the free energy landscape to create novel field driven ordered structures. In the first part of the dissertation, we develop a direct current (DC) electric field assembly method that accelerates the self-assembly of charged colloidal particles. In the second part of the dissertation, we use alternating current (AC) electric fields to alter the free energy landscape and actuate the self-assembled colloidal assemblies created from anisotropic particles.