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  1. Performance of microball micromixers using a programmable magnetic system by applying novel movement patterns
Performance of microball micromixers using a programmable magnetic system by applying novel movement patterns
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Performance of microball micromixers using a programmable magnetic system by applying novel movement patterns

Hajihadi Naghash, T

Performance of microball micromixers using a programmable magnetic system by applying novel movement patterns

Hajihadi Naghash, T ; Sharif University of Technology | 2024

36 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.snb.2024.135403
  3. Publisher: 2024
  4. Abstract:
  5. The rapid achievement of a desirable mixing level at microscales is one of the most challenging aspects of microfluidic systems, whereby micromixers could open the door to efficient mixing on lab-on-a-chip platforms. Although a wide range of strategies have been explored in active and passive micromixers to improve the mixing, the ability to optionally control the mixing is a key factor that is often overlooked. Hereupon, in this study, the adjustable mixing in a novel 3D-printed micromixer by analyzing the effect of various movement patterns of an actuator is examined. In this micromixer, a stainless steel microball is driven as an actuator using a programmable magnetic system. Initially, with the continuous and non-continuous revolving of the microball, the mixing index in these movement patterns are evaluated. The results show that the mixing index in the proposed micromixer reaches as high as 90% for Reynolds number of 5 by the pendular motion of the microball. Eventually, the main mixing zone of this micromixer is developed by adding inlet and outlet mixing zones, each containing a microball. This on-demand micromixer can pave the way for chemical and biological applications under various operating conditions in a wide range of Reynolds numbers. © 2024 Elsevier B.V
  6. Keywords:
  7. 3D printer ; Active micromixer ; Magnetic system ; Microball ; Revolving pattern
  8. Source: Sensors and Actuators B: Chemical ; Volume 406 , 2024 ; 09254005 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0925400524001321