© The Institution of Engineering and Technology
A novel magnetic valveless micropump is proposed for microfluidic applications. Two integrated NdFeB permanent magnetic arrays were used to generate a travelling wave on the top wall of the elastic microchannel, and then the liquid particles were transported along with the travelling wave in the microchannel. The characteristics tested at different frequencies demonstrate that the magnetic micropump has a much higher driving efficiency than the piezoelectric micropump with the same saw-toothed microchannel. By using a low power supply (3.7 V V p-p, 185 mW), the magnetic micropump significantly improves the maximum flow rate and back pressure to 184.25 μl/min and 1.28 kPa with the microchannel of 200 µm width.
References
-
-
1)
-
6. Lee, C.Y., Chen, Z.H.: ‘Valveless impedance micropump with integrated magnetic diaphragm’, Biomed. Microdevices, 2010, 12, (2), pp. 197–205 (doi: 10.1007/s10544-009-9375-8).
-
2)
-
5. Amirouche, F., Zhou, Y., Johnson, T.: ‘Current micropump technologies and their biomedical applications’, Microsyst. Technol., 2009, 15, (5), pp. 647–666 (doi: 10.1007/s00542-009-0804-7).
-
3)
-
2. Wang, C., Zhang, W., Liu, R.P., Wang, Y.J., Liu, G.H.: ‘Time-division self-referencing multichannel spectral SPR sensor without mechanical scanning’, Electron. Lett., 2013, 49, (7), pp. 493–495 (doi: 10.1049/el.2012.4172).
-
4)
-
10. Zhang, W., Wang, C., Yue, Z., et al: ‘Fabrication and measurement of traveling wave piezoelectric micropump’, Nanotechnol. Precision Eng., 2013, 11, (1), pp. 79–84.
-
5)
-
J. Ogawa ,
I. Kanno ,
H. Kotera ,
K. Wasa ,
T. Suzuki
.
Development of liquid pumping devices using vibrating microchannel walls.
Sens. Actuators A
,
211 -
218
-
6)
-
W. Zhang
.
Travelling-wave piezoelectric micropump with low resistance microchannel.
Electron. Lett.
,
1065 -
1066
-
7)
-
3. Wang, C., Liu, R., Zhang, W., et al: ‘Multichannel scan surface plasmon resonance biochip with stationary optics and baseline updating capability’, J. Biomed. Opt., 2013, 18, (11), pp. 110502 (doi: 10.1117/1.JBO.18.11.110502).
-
8)
-
1. Huikko, K., Kostiainen, R., Kotiaho, T.: ‘Introduction to micro-analytical systems: bioanalytical and pharmaceutical applications’, Eur. J. Pharm. Sci., 2003, 20, (2), pp. 149–171 (doi: 10.1016/S0928-0987(03)00147-7).
-
9)
-
7. Fadl, A., Demming, S., Zhang, Z., Büttgenbach, S., Krafczyk, M., Meyer, D.M.: ‘A multifunction and bidirectional valve-less rectification micropump based on bifurcation geometry’, Microfluidics Nanofluidics, 2010, 9, (2–3), pp. 267–280 (doi: 10.1007/s10404-009-0544-0).
-
10)
-
4. Iverson, B.D., Garimella, S.V.: ‘Recent advances in microscale pumping technologies: a review and evaluation’, Microfluidics Nanofluidics, 2008, 5, (2), pp. 145–174 (doi: 10.1007/s10404-008-0266-8).
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