Electrohydrodynamic conduction pump with asymmetrical electrode structures in the microchannels

Tasuku Sato, Yoko Yamanishi, Vito Cacucciolo, Yu Kuwajima, Hiroki Shigemune, Matteo Cianchetti, Cecilia Laschi, Shingo Maeda

Research output: Contribution to journalArticle

5 Citations (Scopus)


In this study, we have developed a microfluidic pump that utilizes the electrohydrodynamic (EHD) conduction of a working fluid. Ring-shaped pumps have been used in previous studies on EHD conduction, but these require a three-dimensional arrangement of electrode pairs, which makes it difficult to downsize the apparatus. Here, we propose a mechanism to achieve one-way fluid flow in the microchannels by arranging non-parallel electrodes in a plane to generate an asymmetric electric field. One advantage of this design is that it can be easily and precisely fabricated using microelectromechanical system (MEMS) processing techniques: This has allowed us to integrate a micropump and a microchannel into a single device. Moreover, the pressure generated by the pump is induced solely by electrochemical reactions; since mechanical components such as gears are not required, this helps reduce the noise generated by the device.

Original languageEnglish
Pages (from-to)950-952
Number of pages3
JournalChemistry Letters
Issue number7
Publication statusPublished - 2017



  • Electrohydrodynamic conduction
  • Microchannel
  • Non-parallel electrode

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Sato, T., Yamanishi, Y., Cacucciolo, V., Kuwajima, Y., Shigemune, H., Cianchetti, M., ... Maeda, S. (2017). Electrohydrodynamic conduction pump with asymmetrical electrode structures in the microchannels. Chemistry Letters, 46(7), 950-952. https://doi.org/10.1246/cl.170217