A magnetically driven PDMS peristaltic micropump

Tingrui Pan, Eleanor Kai, Matthew Stay, Victor H Barocas, Babak Ziaie

Research output: Contribution to journalConference articlepeer-review

31 Scopus citations


In this paper, we present a robust low-cost PDMS peristaltic micropump with magnetic drive. The fabrication process is based on the soft molding and bonding of three PDMS layers. A base layer incorporates the microchannel while a middle layer contains the actuation membrane. The top layer encapsulates three small permanent magnetic rods (Ni-plated-NdFeB) in three small chambers. A small DC motor (6mm in diameter and 15mm in length) with three permanent magnets stagger-mounted on its shaft is used to pull down and actuate the membrane-mounted magnets to generate a peristaltic waveform. A maximum pumping rate of about 24μL/min at the speed of 1700rpm with power consumption of 11mW was demonstrated. A preliminary numerical analysis of the peristaltic pump was performed, which showed the characteristic membrane deflection and fluid flow of pumping.

Original languageEnglish (US)
Pages (from-to)2639-2642
Number of pages4
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume26 IV
StatePublished - 2004
EventConference Proceedings - 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2004 - San Francisco, CA, United States
Duration: Sep 1 2004Sep 5 2004


  • Microfluidics
  • Micropump
  • PDMS
  • Peristaltic Pump
  • Soft Lithography


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