A 3D-printed coaxial microfluidic device approach for generating magnetic liquid metal droplets with large size controllability

He, Xiaokang; Wu, Jie; Hu, Tao; Xuan, Shouhu; Gong, Xinglong

doi:10.1007/s10404-020-02336-4

Cited by 13 publications

(10 citation statements)

References 39 publications

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“…The result showed that uniform droplets (CV less than 5%) were generated smoothly, indicating that the device can be further modularised to meet different demands and achieve scaling-up production. Furthermore, magnetic LM droplets with controllable sizes can be generated by a 3D-printed coaxial microfluidic device [149]. The device integrated three modules to produce magnetic LM droplets with diameters ranging from 650 to 1900 µm (CV < 5%) by changing the flow rate ratio of the two phases of magnetic liquid metal and poly(ethylene glycol) (PEG) solution.…”

Section: Microfluidic Systemsmentioning

confidence: 99%

Modular and Integrated Systems for Nanoparticle and Microparticle Synthesis—A Review

Tang

Yun

et al. 2020

Biosensors

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Nanoparticles (NPs) and microparticles (MPs) have been widely used in different areas of research such as materials science, energy, and biotechnology. On-demand synthesis of NPs and MPs with desired chemical and physical properties is essential for different applications. However, most of the conventional methods for producing NPs/MPs require bulky and expensive equipment, which occupies large space and generally need complex operation with dedicated expertise and labour. These limitations hinder inexperienced researchers to harness the advantages of NPs and MPs in their fields of research. When problems individual researchers accumulate, the overall interdisciplinary innovations for unleashing a wider range of directions are undermined. In recent years, modular and integrated systems are developed for resolving the ongoing dilemma. In this review, we focus on the development of modular and integrated systems that assist the production of NPs and MPs. We categorise these systems into two major groups: systems for the synthesis of (1) NPs and (2) MPs; systems for producing NPs are further divided into two sections based on top-down and bottom-up approaches. The mechanisms of each synthesis method are explained, and the properties of produced NPs/MPs are compared. Finally, we discuss existing challenges and outline the potentials for the development of modular and integrated systems.

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Section: Microfluidic Systemsmentioning

confidence: 99%

Modular and Integrated Systems for Nanoparticle and Microparticle Synthesis—A Review

Tang

Yun

et al. 2020

Biosensors

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“…In this context, the coaxial printing method has been developed. As shown in Figure 2 (h), GaInSn was mixed with Fe/Ni, and then was printed from inner nozzle, with poly(ethylene glycol) (PEG) extruded from outer nozzle [53]. Through coaxial printing, LM could be modified by PEG without separate operation.…”

Section: Modified Liquid Metal-based Materials By Changing the Rheological And Any Other Propertiesmentioning

confidence: 99%

“…Schematic formation process for producing magnetic liquid metal droplets (MLMDs). Reproduced with permission from ref [53]…”

mentioning

confidence: 99%

Preparation and application of gallium-based conductive materials in the very recent years

Wang

Guo

2020

Sci. China Technol. Sci.

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Gallium and its alloys are a group of metallic materials with low-melting points at or around room temperature. Apart from the good electrical conductivity, the unique liquid state endows those metals with excellent compliance and self-healing capacity, which present great value in the development of flexible and stretchable electronics. Constrained by the high surface tension and low viscosity, however, liquid metals cannot be applied to some common microelectronics manufacturing technologies such as micro-electro mechanics in the preceding years, which impedes their mass production in electronic devices. To address these issues and broaden the applications of liquid metals in electronics devices, numerous efforts have been taken and great progress has been made especially in the very recent years. This review summaries the recent development of liquid metal-based conductive materials from the aspects of preparation or modification methods and their accommodative fabrication techniques in flexible electronic applications. Further outlook including expectations and challenges of liquid metal-based conductive materials are also presented.

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“…With the advancement of modern technology, the fields of biomedicine [1][2][3][4][5][6], micro-nano level device fabrication [7][8][9] and wastewater treatment [10] have created an urgent need for the manipulation technology of microparticles. The existing microparticle manipulation methods mainly include magnetic field manipulation [5,[11][12][13][14], electric field manipulation [15], optical tweezers manipulation [16][17][18] and membrane separation [19], etc.…”

Section: Introductionmentioning

confidence: 99%

Vortex-based aggregation of micron particles in liquid using low-frequency vibration of a piezoelectric actuator

Huang¹,

Yang²,

Liu³

et al. 2022

Smart Mater. Struct.

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In this letter, we proposed a control method for microparticles aggregation by utilizing liquid vortices. The piezoelectric cantilever beam, equipped with a probe, caused fluid flow through low-frequency vibration and formed vortexes at the end of the probe to gather microparticles. The particle image velocimetry (PIV) tests and the flow field simulation results revealed that the forming region of the liquid vortexes was consistent with the microparticle aggregation region. The control method proposed here has the merits of simple structures, no damage to the controlled objects and large control ranges.

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A 3D-printed coaxial microfluidic device approach for generating magnetic liquid metal droplets with large size controllability

Cited by 13 publications

References 39 publications

Modular and Integrated Systems for Nanoparticle and Microparticle Synthesis—A Review

Modular and Integrated Systems for Nanoparticle and Microparticle Synthesis—A Review

Preparation and application of gallium-based conductive materials in the very recent years

Vortex-based aggregation of micron particles in liquid using low-frequency vibration of a piezoelectric actuator

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