385379 Shape Memory Assemblies of Janus Ellipsoids

Thursday, November 20, 2014: 4:30 PM
208 (Hilton Atlanta)
Benjamin Schultz1, Aayush A. Shah2, Wenjia Zhang3, Sharon C. Glotzer1,2,3 and Michael J. Solomon2,3, (1)Physics, University of Michigan, Ann Arbor, MI, (2)Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI, (3)Department of Chemical Engineering, University of Michigan, Ann Arbor, MI

A goal in colloidal self-assembly is to create self-assembled structures capable of mimicking the functionality of micron-scale structures found in nature, which can be actuated to control optical, transport, and mechanical properties. We report a joint computational and experimental study in which we draw inspiration from the structure of myofibrils to create shape-memory colloidal assemblies that can be similarly actuated. We use Janus ellipsoids as building blocks to assemble self-limiting one-dimensional fibers. The unit cell of this ordered assembly can rapidly and reversibly reconfigure via a sliding mechanism upon application of an alternating current electric field.

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See more of this Session: Colloidal Assembly and Device Fabrication
See more of this Group/Topical: Engineering Sciences and Fundamentals