Autonomous microfluidic transport using electrowetting-based valves and integrated cells

Siribunbandal, Papaorn; Yamaguchi, Shigeki; Kojima, Kenichi; Fukuda, Junji; Suzuki, Hiroaki
November 2009
Applied Physics Letters;11/16/2009, Vol. 95 Issue 20, p204105
Academic Journal
Autonomous control of the transport of solutions in microfabricated flow channels using electrowetting-based valves and integrated electrochemical cells is proposed. An electrowetting-based valve formed with a gold electrode was opened when an electrolyte solution reached a zinc electrode in a controlling flow channel and a potential was applied to the gold electrode, causing the transport of the solution in the flow channel. Independent composite electrodes consisting of gold and zinc could function in the same manner without requiring additional electrodes. Controlled autonomous transport of solutions in a network of flow channels could also be carried out using the integrated valves.


Related Articles

  • Elements of Electric Valves for Refrigerant Control. Dolan, Brian // Air Conditioning Heating & Refrigeration News;09/11/2000, Vol. 211 Issue 2, p22 

    Provides information pertaining to electric valves. Four basic types of electric valves; Overview of how step motors operate; Step motor types; Digital linear actuators; Resolution; Bipolar drive sequence.

  • Testing the electronic system for the ?-quantum detector of the SVD-2 setup. Basiladze, S.; Matsedon, S.; Tsyupa, Yu. // Instruments & Experimental Techniques;Sep2007, Vol. 50 Issue 5, p673 

    Firmware for checking the electronic equipment for recording signals of the hodoscope ?-quantum detector is described. The detector has 1344 channels for measuring charges of nanosecond pulses arriving from outputs of photomultiplier tubes. The testing system is intended to test the electronics...

  • RECENT ADVANCES IN ELECTRONICS AND THEIR APPLICATION TO KINEMATOGRAPHY. West, A. G. D. // Journal of the British Kinematograph Society;Jan1939, Vol. 2 Issue 1, p3 

    This paper deals with the following :-- 1. The nature of the science of electronics. 2. Practical electron tubes and their use in kinematography. 3. The course of future developments of kinematograph technique, and 4. The present position of kinema television, shown by a practical demonstration...

  • Image-intensified modules.  // Laser Focus World;Mar2006, Vol. 42 Issue 3, p95 

    The article features a line of image-intensified modules which is built around 18-millimeter Gen 2 and Gen 3 tubes with spectral response of 350 to 950 nanometer. Standard modules displays glass input windows, flat fiberoptic output windows, and manual gain control. It offers information about...

  • New Products.  // Product Design & Development;Oct2004, Vol. 59 Issue 10, p24 

    Features several electronic products and apparatus. Photoelectric sensors; Pressure switch; Valve actuator modules; Brushless DC motor; Butterfly valve with disc-stem design; Specialty solenoids; High-precision load cell; Non-contact rotary sensor for hostile environments.

  • Sealer for chomated zinc electroplate.  // Products Finishing;Nov96, Vol. 61 Issue 2, p101 

    Focuses on the Zinc-Chro-Shield sealer for chomated zinc electroplate, by Columbia Chemical Corporation. How the electroplate operates.

  • Laser writing technique creates 3D polymer structures down to 65nm. Bush, Steve // Electronics Weekly;4/11/2007, Issue 2283, p5 

    The article reports that researchers at Atlanta, Georgia-based Georgia Tech University have demonstrated that a three-dimensional polymer structures can be made without conventional lithography, by directly writing with a laser into a polymerisable liquid. The technique could be used to make...

  • Periodic response of fluidic networks with passive deformable features. Begley, Matthew R.; Utz, Marcel; Leslie, Daniel C.; Haj-Hariri, Hossein; Landers, James; Bart-Smith, Hilary // Applied Physics Letters;11/16/2009, Vol. 95 Issue 20, p203501 

    This paper outlines the scaling parameters governing the frequency response of fluidic networks with embedded deformable features, which are subjected to periodic excitation. These parameters describe the impact of deformable feature properties on the relative importance of potential energy,...

  • A NOVEL MODEL FOR OPTIMIZED DEVELOPMENT AND APPLICATION OF SWITCHING VALVES IN CLOSED LOOP CONTROL. Schepers, Ingo; Schmitz, David; Weiler, Daniel; Cochoy, Olaf; Neumann, Uwe // International Journal of Fluid Power;Nov2011, Vol. 12 Issue 3, p31 

    In this paper a novel and validated model to describe the dynamics of switching valves is presented and used to ana- lyse the behaviour of switching valves. The paper starts with a brief discussion of the state of the art and the characteris- tics of switching valves, continuing with...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics