Experimental investigation on performance of disposable micropump with retrofit piezo stack actuator for biomedical application

Mohith, S; Karanth, P. Navin; Kulkarni, S. M.

doi:10.1007/s00542-019-04414-2

Cited by 29 publications

(25 citation statements)

References 35 publications

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“…Mechanical passive valve, as the most traditional valve applied on piezoelectric pump [66,67], is named as check valve. The non-mechanical passive valve is also called non-moving part valve, and the piezoelectric pump applied with this valve is named as valveless piezoelectric pump [68,69], which is often shown as diffuser/nozzle structure. The last type of non-mechanical passive valve is capillary.…”

Section: Comparison Of Different Valve and Working Principles Of Valv...mentioning

confidence: 99%

“…In 2019, Yeom et al [165] combined the rhombus amplifying mechanism and heat sink channels to improve the heat transfer performance as the schematic in figure 12(f). Mohith et al [166] applied the rhombus amplifying mechanism to the pump for medical applications. Later in 2020, Mohith et al [68] improved the structure by adding a bossed diaphragm to simplify the manufacturing.…”

Section: Pump With Innovative Structurementioning

confidence: 99%

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Recent trends in structures and applications of valveless piezoelectric pump—a review

et al. 2022

J. Micromech. Microeng.

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Piezoelectric actuator-driven valveless pump has been studied for a long time in theory and structure for the features of high precision, fast response, low power consumption, compact size, reliability for long-term use and high performance. The pump has a remarkable significance for drug delivery, biological application, chemical analysis, high precision gluing, solder paste, lubrication system and electronic chip cooling system, etc. However, a higher requirement on the control circuit and power supply for the pump is raised, also, the driving voltage of the pump should be further reduced. In this review, the piezoelectric pump with and without valve is analysed in working principle. Then, the recent trends of valveless pump in different structures are discussed. The representative structural designs in different thinking are introduced in the working media, driven voltage, frequency, flow rate, pressure, and the efficiency of the pump, the performance of different pumps are also compared. Afterwards, the application of the pump for different purposes with featured structures are presented. Next are the limitations and the outlook of the pump, which provides some potential research points for subsequent studies, and ended with a summary. This review concludes the recent trends of valveless piezoelectric pump in structural and application, attempts to guide the researchers with different professional backgrounds that can solve current problems through cross-disciplinary approaches.

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Section: Comparison Of Different Valve and Working Principles Of Valv...mentioning

confidence: 99%

Section: Pump With Innovative Structurementioning

confidence: 99%

Recent trends in structures and applications of valveless piezoelectric pump—a review

et al. 2022

J. Micromech. Microeng.

View full text Add to dashboard Cite

show abstract

“…In addition, Rimsa et al 5) reported a surface acoustic wave micropump for closed-loop microfluidics, while Gao et al 6) reported a bi-directional micropump using microcavitytrapped bubbles. Ma et al 7) reported on a peristaltic micropump using three piezoelectric (PZT) actuators, while Mohth et al 8) reported a disposable micropump that adopts a PZT stack actuator. Furthermore, Yoshida et al 9) reported an AC electroosmotic (ACEO) micropump using a square pole-slit electrode array, while Sugioka and Segawa 10) reported an ACEO micropump with a ratchet structure.…”

Section: Introductionmentioning

confidence: 99%

Natural convection pump having local nonequilibrium states with heaters for microfluidic circuits

Sugioka

Takahashi

Someya

2022

Jpn. J. Appl. Phys.

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A small pump with a simple structure that can be driven at low voltage remains under development in the research stage. In this study, we propose a small natural convection (NC) pump that has local nonequilibrium states with heaters for microfluidic circuits, and experimentally examine its pumping performance. In other words, by setting four small units comprising a hot fluid region with a buoyancy force and a cold fluid region in a circular channel, we obtained a maximum pumping velocity of $\sim$0.6 mm/s with an applied voltage of 3 V. Our device is beneficial as microfluidic circuits because the performance of our device is sufficiently practical.

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“…The pump has to be small, consume low power, and be compatible with microtechnology. The pumping mechanisms known to date include piezoelectric [11][12][13][14][15], electrostatic [16][17][18][19][20], electromagnetic [21][22][23][24][25], and thermopneumatic [26][27][28][29][30] principles. However, each of them has inherent drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Fast Electrochemical Actuator with Ti Electrodes in the Current Stabilization Regime

2022

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The actuators needed for autonomous microfluidic devices have to be compact, low-power-consuming, and compatible with microtechnology. The electrochemical actuators could be good candidates, but they suffer from a long response time due to slow gas termination. An actuator in which the gas is terminated orders of magnitude faster has been demonstrated recently. It uses water electrolysis performed by short voltage pulses of alternating polarity (AP). However, oxidation of Ti electrodes leads to a rapid decrease in the performance. In this paper, we demonstrate a special driving regime of the actuator, which is able to support a constant stroke for at least 105 cycles. The result is achieved using a new driving regime when a series of AP pulses are interspersed with a series of single-polarity (SP) pulses. The new regime is realized by a special pulse generator that automatically adjusts the amplitude of the SP pulses to keep the current flowing through the electrodes at a fixed level. The SP pulses increase the power consumption by 15–60% compared to the normal AP operation and make the membrane oscillate in a slightly lifted position.

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Experimental investigation on performance of disposable micropump with retrofit piezo stack actuator for biomedical application

Cited by 29 publications

References 35 publications

Recent trends in structures and applications of valveless piezoelectric pump—a review

Recent trends in structures and applications of valveless piezoelectric pump—a review

Natural convection pump having local nonequilibrium states with heaters for microfluidic circuits

Fast Electrochemical Actuator with Ti Electrodes in the Current Stabilization Regime

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