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Compact and Thermosensitive Micropump Inspired by Plant Leaf

[+] Author Affiliations
Hyejeong Kim, Kiwoong Kim, Sang Joon Lee

Pohang University of Science and Technology, Pohang, Korea

Paper No. FEDSM2017-69148, pp. V01BT10A007; 4 pages
doi:10.1115/FEDSM2017-69148
From:
  • ASME 2017 Fluids Engineering Division Summer Meeting
  • Volume 1B, Symposia: Fluid Measurement and Instrumentation; Fluid Dynamics of Wind Energy; Renewable and Sustainable Energy Conversion; Energy and Process Engineering; Microfluidics and Nanofluidics; Development and Applications in Computational Fluid Dynamics; DNS/LES and Hybrid RANS/LES Methods
  • Waikoloa, Hawaii, USA, July 30–August 3, 2017
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5805-9
  • Copyright © 2017 by ASME

abstract

Liquid transportation without employing a bulky power source, often observed in nature, has been an essential prerequisite for smart applications of microfluidic devices. In this report, a leaf-inspired micropump (LIM) which is composed of thermo-responsive stomata inspired membrane (SIM) and mesophyll-inspired agarose cryogel (MAC) is proposed. The LIM provides a durable flow rate of 30 μl/ḣcm2 for more than 30 h at room temperature without external mechanical power source. By adapting a thermo-responsive polymer, the LIM can smartly adjust the delivery rate of a therapeutic liquid in response to temperature changes. In addition, as the LIM is compact, portable, and easily integrated into any liquid, it might be utilized as an essential component in advanced hand-held drug delivery devices.

Copyright © 2017 by ASME
Topics: Micropumps

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