Skip to main content

Active Mixer

  • Living reference work entry
  • First Online:
Encyclopedia of Microfluidics and Nanofluidics

Synonyms

Active mixing; Dynamic mixing

Definition

The term “active mixer” or “active micromixer” refers to a microfluidic device in which species mixing is enhanced by the application of some form of external energy disturbance. Typically, this disturbance is generated either by moving components within the micromixer itself, e.g., magnetically actuated stirrers, or by the application of an external force field, e.g., pressure, ultrasound, acoustic, electrohydrodynamic, electrokinetic, dielectrophoretic, magnetohydrodynamic, thermal, and so forth [1, 2].

Overview

Mixing occurs in many natural phenomena, including geophysical, ocean, and atmospheric flows, and is also an important step in industrial processes involving chemical reactions, fermentation reactions, combustion, and so forth. Traditionally, industrial mixing applications have always been performed using large-scale apparatus. However, in recent years, microscale devices (commonly referred to as microfluidic devices) have...

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Institutional subscriptions

References

  1. Nguyen NT, Wu Z (2005) Micromixers – a review. J Micromech Microeng 15:R1–R16

    Article  Google Scholar 

  2. Chang CC, Yang RJ (2007) Electrokinetic mixing in microfluidic systems. Microfluid Nanofluid 3:2479–2501

    Article  MathSciNet  Google Scholar 

  3. Ottino JM (1989) The kinematics of mixing: stretching, chaos, and transport. Cambridge University Press, Cambridge

    MATH  Google Scholar 

  4. Stroock AD, Dertinger SKW, Ajdari A, Mezic I, Stone HA, Whitesides GM (2002) Chaotic mixer for microchannels. Science 295:647–651

    Article  Google Scholar 

  5. Niu X, Lee YK (2003) Efficient spatial-temporal chaotic mixing in microchannels. J Micromech Microeng 13:454–462

    Article  Google Scholar 

  6. El Moctar AO, Aubry N, Batton J (2003) Electro-hydrodynamic micro-fluidic mixer. Lab Chip 3:273–280

    Article  Google Scholar 

  7. Oddy MH, Santiago JG, Mikkelsen JC (2001) Electrokinetic instability micromixing. Anal Chem 73:5822–5832

    Article  Google Scholar 

  8. Fu LM, Yang RJ, Lin CH, Chien YS (2005) A novel microfluidic mixer utilizing electrokinetic driving forces under low switching frequency. Electrophoresis 26:1814–1824

    Article  Google Scholar 

  9. Bau HH, Zhong J, Yi M (2001) A minute magneto hydro dynamic (MHD) mixer. Sens Actuators B 79:207–215

    Article  Google Scholar 

  10. Yi M, Qian S, Bau HH (2002) A minute magneto hydro dynamic (MHD) chaotic stirrer. J Fluid Mech 468:153–177

    Article  MATH  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ruey-Jen Yang .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2013 Springer Science+Business Media New York

About this entry

Cite this entry

Chang, CC., Fu, LM., Yang, RJ. (2013). Active Mixer. In: Li, D. (eds) Encyclopedia of Microfluidics and Nanofluidics. Springer, Boston, MA. https://doi.org/10.1007/978-3-642-27758-0_16-6

Download citation

  • DOI: https://doi.org/10.1007/978-3-642-27758-0_16-6

  • Received:

  • Accepted:

  • Published:

  • Publisher Name: Springer, Boston, MA

  • Online ISBN: 978-3-642-27758-0

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

Publish with us

Policies and ethics