Session A28: Bionanotechnology

8:00 AM–11:00 AM, Monday, March 16, 2009
Room: 330

Sponsoring Unit: FIAP
Chair: Xinsheng (Sean) Ling, Brown University

Abstract ID: BAPS.2009.MAR.A28.14

Abstract: A28.00014 : Directional Growth of Polymeric Nanowires

10:36 AM–10:48 AM

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  Prem Thapa
  Bret Flanders

This work establishes an innovative electrochemical approach to the template free growth of conducting polypyrrole and polythiophene wires. These polymeric wires exhibit a knobby structure, but persistent growth in a given direction up to 30 $\mu $m in length. A long-range component of the applied voltage signal defines the growth-path. Moreover, the presence of this component enables the growth of amorphous nanowires with wire-like geometries. Such wires are employed in a non-invasive methodology for attaining strong mechanical attachments to live cells. This capability is of potential use in the electro-mechanical probing of cell physiological processes.

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