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Collective Behavior of Swimming Bimetallic Motors in Chemical Concentration Gradients.


Abstract Locomotion of microorganisms is commonly observed in nature. Although microorganism locomotion is commonly attributed to mechanical deformation of solid appendages, in 1956 Nobel Laureate Peter Mitchell proposed that an asymmetric ion flux on a bacterium's surface could generate electric fields that drive locomotion via self-electrophoresis. Recent advances in nanofabrication have enabled the engineering of synthetic analogues, bimetallic colloidal particles, that swim due to asymmetric ion flux originally proposed by Mitchell. Bimetallic colloidal particles swim through aqueous solutions by converting chemical fuel to fluid motion through asymmetric electrochemical reactions. This dissertation presents novel bimetallic motor fabricati... (more)
Created Date 2011
Contributor Wheat, Philip Matthew (Author) / Posner, Jonathan D (Advisor) / Phelan, Patrick (Committee member) / Chen, Kangping (Committee member) / Buttry, Daniel (Committee member) / Calhoun, Ronald (Committee member) / Arizona State University (Publisher)
Subject Mechanical Engineering / Colloids / Drug delivery / Microfluidics / Nanomotors / Self-electrophoresis / Self-propelled
Type Doctoral Dissertation
Extent 188 pages
Language English
Copyright
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Note Ph.D. Mechanical Engineering 2011
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis