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Microfluidic Chips Controlled with Elastomeric Microvalve Arrays
18:11

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: October 1, 2007

Elastomeric membrane valves in a disc.

Hyundoo Hwang1, Hak-Hyeon Kim, Yoon-Kyoung Cho

  • 1School of Nano-Bioscience and Chemical Engineering, UNIST, Ulju-gun, Ulsan, Republic of Korea.

Lab on a Chip
|March 5, 2011
PubMed
Summary
This summary is machine-generated.

We developed elastomeric membrane valves for centrifugal microfluidic discs, enabling precise fluid control. Fluid flow is tunable by adjusting disc speed and membrane thickness for advanced lab-on-a-disc applications.

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Area of Science:

  • Biomedical Engineering
  • Fluid Dynamics
  • Microfluidics

Background:

  • Centrifugal microfluidic platforms offer advantages for sample processing.
  • Precise fluid handling is crucial for complex microfluidic assays.
  • Existing valve technologies can be complex or difficult to integrate.

Purpose of the Study:

  • To introduce novel elastomeric membrane valves for centrifugal microfluidic systems.
  • To demonstrate precise, tunable control over fluid flow on a rotating disc.
  • To characterize the relationship between valve performance, disc speed, and membrane properties.

Main Methods:

  • Integration of elastomeric membrane valves into a centrifugal microfluidic disc.
  • Experimental characterization of fluid flow through the valves.
  • Systematic variation of disc rotational speed and membrane thickness.
  • Analysis of fluid volume as a function of operational parameters.

Main Results:

  • Elastomeric membrane valves provide precise control over fluid volume.
  • Fluid flow is directly influenced by the rotational speed of the microfluidic disc.
  • Membrane thickness is a critical factor in modulating fluid passage.
  • Tunable fluid control is achieved by adjusting disc motion parameters.

Conclusions:

  • Elastomeric membrane valves are effective for precise fluid handling in centrifugal microfluidics.
  • The developed system allows for on-demand control of fluid volumes.
  • This technology advances the capabilities of lab-on-a-disc devices for various applications.