Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

There will be scheduled maintenance work beginning on Saturday 15th June 2019 at 8:30 am through to Sunday 16th June 2019 at 11:30 pm (BST).

During this time our website may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 16, 2011
Previous Article Next Article

A bio-inspired micropump based on stomatal transpiration in plants

Author affiliations


Stomatal transpiration, which is an efficient way to carry water from the roots up to the leaves, can be described by “diameter-law”. According to the law, the flow rate induced by micropore transpiration far exceeded that induced by macroscale evaporation, and it can be controlled by opening (or closing) some micropores. In this research, a bio-inspired micropump based on stomatal transpiration is presented. The micropump is composed of three layers: the top layer is a 93 μm-thick PVC (polyvinylchloride) film with a group of slit-like micropores; the second layer is a PMMA sheet with adhesives to join the other two layers together; the third layer is a microporous membrane. Using this pump, controllable flow rates of 0.13–3.74 μl min−1 can be obtained. This micropump features high and adjustable flow-rates, simple structure and low fabrication cost. It can be used as a “plug and play” fluid-driven unit without any external power sources and equipment.

Graphical abstract: A bio-inspired micropump based on stomatal transpiration in plants

Back to tab navigation

Publication details

The article was received on 13 Apr 2011, accepted on 01 Jun 2011 and first published on 04 Jul 2011

Article type: Technical Note
DOI: 10.1039/C1LC20313D
Lab Chip, 2011,11, 2785-2789

  •   Request permissions

    A bio-inspired micropump based on stomatal transpiration in plants

    J. Li, C. Liu, Z. Xu, K. Zhang, X. Ke, C. Li and L. Wang, Lab Chip, 2011, 11, 2785
    DOI: 10.1039/C1LC20313D

Search articles by author