Advertisement

Microsystem Technologies

, Volume 23, Issue 12, pp 5893–5902 | Cite as

Hydrodynamically efficient micropropulsion through a new artificial cilia beating concept

  • Yu-An Wu
  • Bivas Panigrahi
  • Chia-Yuan ChenEmail author
Technical Paper

Abstract

Flow propulsion and manipulation in a microscale flow regime are essential for the rapid processing of biomedical analytical assays that are performed on lab-on-a-chip platform. However, inherited from typically conical movement of artificial cilia in a cyclic manner, the generated backflow and flow oscillations during artificial cilia actuation are inevitably significant and post a significant barrier to the practical use of artificial cilia for accurate flow control. To address this problem, in this study we have hypothesized that by minimizing the traversing path of the artificial cilia during the recovery stroke could minimize the generated back flow and will result in an increment in the net flow propulsion. In this aspect, we have initiated the concept of the triangular beating pattern and compared its performance with the typical circular beating pattern. Upon comparison, it was observed that in the case of triangular beating pattern, the generated peak net flow velocity is almost double than the case of circular beating pattern. In particular, the underlying hydrodynamics induced during the actuation of the aforementioned two distinct beating patterns of artificial cilia were visualized and quantified with delineated comparison. This comparison was conducted based on flow dynamic characteristics measured through a micro-particle image velocimetry method. These results are important given that previous researchers do not explicitly recognize the role of the triangular beating pattern which possesses a significantly hydrodynamic advantage that can reduce the amount of back flow and surrounding flow fluctuations. The proposed concept provides a novel perspective on the microscale flow manipulation with promising applications in micropropulsion.

Keywords

PDMS Microfluidic Device Magnetic Coil Back Flow Recovery Stroke 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This study was supported through Ministry of Science and Technology of Taiwan under Contract No. MOST 105-2628-E-006-006-MY3 (to Chia-Yuan Chen). This work would not be possible without the facility provided by Center for Micro/Nano Science and Technology, National Cheng Kung University. Also, Hsiang-Yu Tsai is appreciated for the initial work of this study.

References

  1. Abhari F, Jaafar H, Yunus NAM (2012) A comprehensive study of micropumps technologies. Int J Electrochem Sci 7:9765–9780Google Scholar
  2. Belardi J, Schorr N, Prucker O, Ruhe J (2011) Artificial Cilia: generation of magnetic actuators in microfluidic systems. Adv Funct Mater 21:3314–3320CrossRefGoogle Scholar
  3. Chen CY, Chen CY, Lin CY, Hu YT (2013) Magnetically actuated artificial cilia for optimum mixing performance in microfluidics. Lab Chip 13:2834–2839CrossRefGoogle Scholar
  4. Chen CY, Yao CY, Lin CY, Hung SH (2014) Real-time remote control of artificial cilia actuation using fingertip drawing for efficient micromixing. J Lab Autom 19:492–497CrossRefGoogle Scholar
  5. Chen CY, Cheng LY, Hsu CC, Mani K (2015) Microscale flow propulsion through bioinspired and magnetically actuated artificial cilia. Biomicrofluidics 9:034105CrossRefGoogle Scholar
  6. Den Toonder J et al (2008) Artificial cilia for active micro-fluidic mixing. Lab Chip 8:533–541CrossRefGoogle Scholar
  7. Dorin A, Martin J (1994) A model of protozoan movement for artificial life. In: Gigante M, Kunni TL (eds) Proceedings computer graphics international 94. World Scientific, Melbourne, p 11Google Scholar
  8. Evans BA, Shields AR, Carroll RL, Washburn S, Falvo MR, Superfine R (2007) Magnetically actuated nanorod arrays as biomimetic cilia. Nano Lett 7:1428–1434CrossRefGoogle Scholar
  9. Gauger EM, Downton MT, Stark H (2009) Fluid transport at low Reynolds number with magnetically actuated artificial cilia. Eur Phys J E Soft Mater 28:231–242CrossRefGoogle Scholar
  10. Laser DJ, Santiago JG (2004) A review of micropumps. J Micromech Microeng 14:R35–R64CrossRefGoogle Scholar
  11. Onck PR et al (2011) Magnetically-actuated artificial cilia for microfluidic propulsion. Lab Chip 11:2002–2010CrossRefGoogle Scholar
  12. Purcell EM (1977) Life at low reynolds-number. Am J Phys 45:3–11CrossRefGoogle Scholar
  13. Shields AR, Fiser BL, Evans BA, Falvo MR, Washburn S, Superfine R (2010) Biomimetic cilia arrays generate simultaneous pumping and mixing regimes. Proc Natl Acad Sci USA 107:15670–15675CrossRefGoogle Scholar
  14. Toonder JMJD, Onck PR (2013) Microfluidic manipulation with artificial/bioinspired cilia. Trends Biotechnol 31:85–91CrossRefGoogle Scholar
  15. Van den Beld WT, Cadena NL, Bomer J, de Weerd EL, Abelmann L, van den Berg A, Eijkel JC (2015) Bidirectional microfluidic pumping using an array of magnetic Janus microspheres rotating around magnetic disks. Lab Chip 15:2872–2878CrossRefGoogle Scholar
  16. Van Oosten CL, Bastiaansen CWM, Broer DJ (2009) Printed artificial cilia from liquid-crystal network actuators modularly driven by light. Nat Mater 8:677–682CrossRefGoogle Scholar
  17. Vilfan M, Potocnik A, Kavcic B, Osterman N, Poberaj I, Vilfan A, Babic D (2010) Self-assembled artificial cilia. Proc Natl Acad Sci USA 107:1844–1847CrossRefGoogle Scholar
  18. Wang Y, Gao Y, Wyss HM, Anderson PD, den Toonder JM (2015) Artificial cilia fabricated using magnetic fiber drawing generate substantial fluid flow. Microfluid Nanofluidics 18:167–174CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNational Cheng Kung UniversityTainanTaiwan

Personalised recommendations