Micropump

A Ti–Cr–Pt tube (~40 μm long) releases oxygen bubbles when immersed in hydrogen peroxide (catalytic decomposition). Polystyrene spheres (1 μm diameter) were added to study the flow kinetics.^[1]

Electrochemical micropump activating the flow of human blood through a 50×100 μm pipe.^[2]

Micropumps are devices that can control and manipulate small fluid volumes.^[3]^[4] Although any kind of small pump is often referred to as a micropump, a more accurate definition restricts this term to pumps with functional dimensions in the micrometer range. Such pumps are of special interest in microfluidic research, and have become available for industrial product integration in recent years. Their miniaturized overall size, potential cost and improved dosing accuracy compared to existing miniature pumps fuel the growing interest for this innovative kind of pump.

Note that the below text is very incomplete in terms of providing a good overview of the different micropump types and applications, and therefore please refer to good review articles on the topic.^[3]^[5]^[6]^[7]

^ Solovev, Alexander A.; Sanchez, Samuel; Mei, Yongfeng; Schmidt, Oliver G. (2011). "Tunable catalytic tubular micro-pumps operating at low concentrations of hydrogen peroxide". Physical Chemistry Chemical Physics. 13 (21): 10131–5. Bibcode:2011PCCP...1310131S. doi:10.1039/C1CP20542K. PMID 21505711. S2CID 21754449.
^ Chiu, S. H.; Liu, C. H. (2009). "An air-bubble-actuated micropump for on-chip blood transportation". Lab on a Chip. 9 (11): 1524–33. doi:10.1039/B900139E. PMID 19458858. S2CID 38015356.
^ ^a ^b Bußmann, Agnes Beate; Grünerbel, Lorenz Maximilian; Durasiewicz, Claudia Patricia; Thalhofer, Thomas Alexander; Wille, Axel; Richter, Martin (2021-10-15). "Microdosing for drug delivery application—A review". Sensors and Actuators A: Physical. 330: 112820. doi:10.1016/j.sna.2021.112820. ISSN 0924-4247.
^ Laser, D. J.; Santiago, J. G. (2004). "A review of micropumps". Journal of Micromechanics and Microengineering. 14 (6): R35. Bibcode:2004JMiMi..14R..35L. doi:10.1088/0960-1317/14/6/R01. ISSN 0960-1317. S2CID 35703576.
^ Nguyen; et al. (2002). "MEMS-Micropumps: A Review". Journal of Fluids Engineering. 124 (2): 384–392. doi:10.1115/1.1459075.
^ Iverson; et al. (2008). "Recent advances in microscale pumping technologies: a review and evaluation". Microfluid Nanofluid. 5 (2): 145–174. doi:10.1007/s10404-008-0266-8. S2CID 44242994.
^ Amirouche; et al. (2009). "Current micropump technologies and their biomedical applications". Microsystem Technologies. 15 (5): 647–666. doi:10.1007/s00542-009-0804-7. S2CID 108575489.

[1] Solovev, Alexander A.; Sanchez, Samuel; Mei, Yongfeng; Schmidt, Oliver G. (2011). "Tunable catalytic tubular micro-pumps operating at low concentrations of hydrogen peroxide". Physical Chemistry Chemical Physics. 13 (21): 10131–5. Bibcode:2011PCCP...1310131S. doi:10.1039/C1CP20542K. PMID 21505711. S2CID 21754449.

[2] Chiu, S. H.; Liu, C. H. (2009). "An air-bubble-actuated micropump for on-chip blood transportation". Lab on a Chip. 9 (11): 1524–33. doi:10.1039/B900139E. PMID 19458858. S2CID 38015356.

[:6-3] Bußmann, Agnes Beate; Grünerbel, Lorenz Maximilian; Durasiewicz, Claudia Patricia; Thalhofer, Thomas Alexander; Wille, Axel; Richter, Martin (2021-10-15). "Microdosing for drug delivery application—A review". Sensors and Actuators A: Physical. 330: 112820. doi:10.1016/j.sna.2021.112820. ISSN 0924-4247.

[4] Laser, D. J.; Santiago, J. G. (2004). "A review of micropumps". Journal of Micromechanics and Microengineering. 14 (6): R35. Bibcode:2004JMiMi..14R..35L. doi:10.1088/0960-1317/14/6/R01. ISSN 0960-1317. S2CID 35703576.

[5] Nguyen; et al. (2002). "MEMS-Micropumps: A Review". Journal of Fluids Engineering. 124 (2): 384–392. doi:10.1115/1.1459075.

[:1-6] Iverson; et al. (2008). "Recent advances in microscale pumping technologies: a review and evaluation". Microfluid Nanofluid. 5 (2): 145–174. doi:10.1007/s10404-008-0266-8. S2CID 44242994.

[7] Amirouche; et al. (2009). "Current micropump technologies and their biomedical applications". Microsystem Technologies. 15 (5): 647–666. doi:10.1007/s00542-009-0804-7. S2CID 108575489.

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