Piezoelectric micropump with integrated elastomeric check valves: design, performance characterization and primary application for 3D cell culture

Holman, Joseph Benjamin; Zhu, Xiaolu; Cheng, Hao

doi:10.1007/s10544-022-00645-9

Cited by 7 publications

(2 citation statements)

References 53 publications

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“…The maximum experimental flow rate reached 835 µl min −1 and the pressure reached 1.6 kPa. Holman et al [17] reported an integrated resilient check-valve piezoelectric micropump which is able to operate at voltages as low as 40Vpp, with an operating frequency of less than 10 Hz and an output flow rate of 3.4-41.8 µl min −1 and is applicable to biomedical applications. However, valve-based piezoelectric pumps have some problems, such as the possibility of clogging at the pump chamber and valves when pumping particulate flow.…”

Section: Introductionmentioning

confidence: 99%

A piezoelectric pump with composite chamber: using bluff body to improve its anti-clogging ability

Chen,

Fang,

Xie

et al. 2024

Smart Mater. Struct.

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Piezoelectric pumps are widely used in biomedicine, chip cooling, fuel cells and so on. However, existing valve-based piezoelectric pumps suffer from the problem of easy clogging. In order to solve the problem, a piezoelectric pump with composite chamber (PPCC) is proposed. The composite chamber, consisting of drive chamber and flow chamber, which provides the PPCC with excellent output performance by amplifying the compression ratio. Meanwhile, a bluff body is set in the drive chamber, and the vortex flow around the bluff body is able to adsorb air bubbles and other impurities, preventing impurities from entering the drive chamber, the bluff body provides the PPCC with strong anti-clogging ability. Multi-physics field simulation is established, which verifies the PPCC is feasible. The fluid inside the pump chamber is simulated, and it is concluded that the 90-arc bluff body is optimal, favoring the formation of high-speed vortices. Furthermore, a prototype is fabricated and experimentally investigated. The experimental results show that the PPCC has excellent performance in pumping liquid and gas. At 300Vpp, the PPCC delivered a maximum flow rate of 235.9 ml min−1 for air and 24.07 ml min−1 for water. The anti-clogging ability of PPCC is verified through bubble resistance experiments, which demonstrates the composite chamber and bluff body effectively prevent foreign impurities from entering the drive chamber. The PPCC provides a new approach to microfluidic pumping devices.

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Section: Introductionmentioning

confidence: 99%

A piezoelectric pump with composite chamber: using bluff body to improve its anti-clogging ability

Chen,

Fang,

Xie

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…With the increasing demand for miniaturization and integration of electronic products [1], medical instruments [2], the speed and agility of biomedical testing, and the technological development of intelligent and high-precision medical equipment. The development of miniaturization technology requires that highprecision manipulation of microfluidics has been widely applied in biomedical fields [3][4][5], cell manipulation [6], micro nano diagnostics, high-precision operations, and other fields. The interdisciplinary field has gradually formed an intelligent system for Micro Electro Mechanical System (MEMS), which can achieve intelligent technology manipulation at the micron to nanometer level and has broad application prospects.…”

Section: Introductionmentioning

confidence: 99%

High Precision Piezoelectric Micro Droplet Control and Generation System

Zhao,

Li,

Dong

et al. 2023

J. Phys.: Conf. Ser.

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To analyze and design an intelligent system that can achieve the generation and control of micro droplets. This article is based on the ANSYS finite element analysis and calculation software to design a fluid piezoelectric actuator with a circular oscillator, establish an overall structural model, and provide the design principle and driving structure of the piezoelectric actuator. And different control methods and driving performance were explored. We studied the simulation method of calculating the pressure at the nozzle through the variation of signal excitation amplitude and the control basis of micro droplets. Through the excitation signal, the movement of the fluid can be controlled, and the driving control effect of the fluid has been verified through simulation calculations.

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A Compact, High‐Performance, and Deformation‐Resilient Trielectrode Electrostatic Soft Pump for Soft Robotics

Lin,

Yang,

Jin

et al. 2024

Advanced Intelligent Systems

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Fluid‐driven soft robotic systems, typically powered by bulky and rigid pumps, face significant limitations in agility and adaptability. Addressing this, various soft pumps have been developed, aiming to achieve better compatibility with soft robotics while ensuring sufficient performance. However, finding an optimal balance between flow rate, pumping pressure, efficiency, and the ability to seamlessly integrate with soft robotic structures remains challenging. Herein, a trielectrode electrostatically driven soft pump is presented, featuring a central diaphragm for active bidirectional pumping of gases and dielectric liquids. This design surpasses previous dual‐electrode soft pumps in electrostatic driving frequency, offering an improved flow rate of up to 330 mL min−1 and pressure of 15.96 kPa, within a compact form measuring 5.42 cm3 in volume and weighing only 11.2 g. In addition, constructed entirely from compliant materials, this pump is fully functional under bending, compression, and torsion, enhancing its integration with soft robotics. To demonstrate its practical utility, the pump is integrated into a soft gripper, enabling the manipulation of various objects. The introduced trielectrode design enables high‐frequency electrostatic actuation, resulting in a compact, high‐performance, and deformation‐resilient soft pump, advancing highly integrated and practical soft robotics.

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Piezoelectric micropump with integrated elastomeric check valves: design, performance characterization and primary application for 3D cell culture

Cited by 7 publications

References 53 publications

A piezoelectric pump with composite chamber: using bluff body to improve its anti-clogging ability

A piezoelectric pump with composite chamber: using bluff body to improve its anti-clogging ability

High Precision Piezoelectric Micro Droplet Control and Generation System

A Compact, High‐Performance, and Deformation‐Resilient Trielectrode Electrostatic Soft Pump for Soft Robotics

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