Electrochemically-induced fluid movement using polypyrrole

Initial studies on inherently conducting polymer-coated surfaces show that the surface energy can be controlled by electrochemically switching the polymer's oxidation state. This surface energy change was then used to induce fluidic movement in a 700 μm wide polymethylmethacrylate channel coated with a polypyrrole layer doped with dodecylbenzenesulfonate anions. By applying a reducing potential to the polymer-coated channel, electrolyte solution was seen to move along the channel.

[1]  Shah,et al.  Electrochemical principles for active control of liquids on submillimeter scales , 1999, Science.

[2]  M. Porter,et al.  Electrochemically actuated mercury pump for fluid flow and delivery. , 2001, Analytical chemistry.

[3]  R. Torresi,et al.  Ionic exchanges in dodecylbenzenesulfonate doped polypyrrole Part 1. Optical beam deflection studies , 1995 .

[4]  Hiroshi Toshiyoshi,et al.  Light actuation of liquid by optoelectrowetting , 2003 .

[5]  Hiroaki Suzuki,et al.  Microfluidic transport based on direct electrowetting , 2004 .

[6]  Howard A. Stone,et al.  ENGINEERING FLOWS IN SMALL DEVICES , 2004 .

[7]  David J. Beebe,et al.  Pressure-sensitive microfluidic gates fabricated by patterning surface free energies inside microchannels , 2003 .

[8]  Elisabeth Smela,et al.  The effect of pH on polymerization and volume change in PPy(DBS) , 1998 .

[9]  Ichimura,et al.  Light-driven motion of liquids on a photoresponsive surface , 2000, Science.

[10]  D. Beebe,et al.  Flow control with hydrogels. , 2004, Advanced drug delivery reviews.

[11]  I. Hsing,et al.  An improved anodic bonding process using pulsed voltage technique , 2000, Journal of Microelectromechanical Systems.

[12]  P. Wong,et al.  Electrokinetics in micro devices for biotechnology applications , 2004, IEEE/ASME Transactions on Mechatronics.

[13]  Curtis W. Frank,et al.  A microfluidic actuator based on thermoresponsive hydrogels , 2003 .

[14]  R. Baughman.  Conducting polymer artificial muscles , 1996 .

[15]  R. Stein,et al.  The effects of varying deposition current density on bending behaviour in PPy(DBS)-actuated bending beams , 2001 .

[16]  I. Hunter,et al.  Fast contracting polypyrrole actuators , 2000 .

[17]  M. Berggren,et al.  A Solid‐State Organic Electronic Wettability Switch , 2004 .

[18]  C. Kim,et al.  Surface-tension-driven microactuation based on continuous electrowetting , 2000, Journal of Microelectromechanical Systems.

[19]  David J. Fermín,et al.  Marangoni Flow in Micro-Channels , 1999 .

[20]  Gordon G Wallace,et al.  Inherently conducting polymer nanostructures. , 2002, Journal of nanoscience and nanotechnology.

[21]  G. Wallace,et al.  In situ characterization of conducting polymers by measuring dynamic contact angles with Wilhelmy's plate technique , 1995 .

[22]  Mwj Menno Prins,et al.  Fluid control in multichannel structures by electrocapillary pressure. , 2001, Science.