Synthesis of dimpled and submicron-sized polymer particles of different morphologies using free micromixer

Kawai, Yusuke; Yamamoto, Tetsuya

doi:10.1016/j.colcom.2019.100193

Cited by 13 publications

(5 citation statements)

References 23 publications

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“…A wide variety of post‐treatment techniques, including solvent‐absorbing/releasing, [ 109,110 ] general solvent evaporation, [ 111–121 ] microfluidic emulsification/emulsion–solvent evaporation, [ 122–128 ] electrospraying/solvent evaporation, [ 129–137 ] electrospinning/solvent evaporation, [ 138,139 ] templating method, [ 140–166 ] treatment on core–shell particles [ 167–173 ] and self‐assembly of polymer [ 174–176 ] have been developed for dimpled polymer particles syntheses.…”

Section: Dimpled Polymer Particlesmentioning

confidence: 99%

“…[105] Copyright 2017, American Chemical Society. microfluidic emulsification/emulsion-solvent evaporation, [122][123][124][125][126][127][128] electrospraying/solvent evaporation, [129][130][131][132][133][134][135][136][137] electrospinning/solvent evaporation, [138,139] templating method, treatment on core-shell particles [167][168][169][170][171][172][173] and self-assembly of polymer [174][175][176] have been developed for dimpled polymer particles syntheses.…”

Section: Post-treatment On Polymer Particlesmentioning

confidence: 99%

“…The most prominent characteristic of the concave polymer particles is their larger specific surface area than their spherical counterparts. On the basis of the detailed surface morphology and component of the concave polymer particles, various potential applications, especially in the biological fields, have been reported, such as drug delivery, [30,35,124,140,165,185,207,216] imaging contrast agent, [33,140] insect-repellent, [219] superhydrophobic coatings, [39,101,213] oil-water separation, [65] colloidal model systems, [47] SERS sensing, [194] etc. Some selected examples are presented here.…”

Section: Applicationsmentioning

confidence: 99%

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Synthetic Strategies for Polymer Particles with Surface Concavities

Zou

2022

Macromol. Rapid Commun.

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Over the past decade or so, there has been increasing interest in the synthesis of polymer particles with surface concavities, which mainly include golf ball‐like, dimpled and surface‐wrinkled polymer particles. Such syntheses generally can be classified into direct polymerization and post‐treatment on preformed polymer particles. This review aims to provide an overview of the synthetic strategies of such particles. Some selected examples are given to present the formation mechanisms of the surface concavities. The applications and future development of these concave polymer particles are also briefly discussed.

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Section: Dimpled Polymer Particlesmentioning

confidence: 99%

Section: Post-treatment On Polymer Particlesmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

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Synthetic Strategies for Polymer Particles with Surface Concavities

Zou

2022

Macromol. Rapid Commun.

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“…Lab-on-a-chip and micro total analysis systems have wide applications in the biochemical industries. DNA hybridization [1], drug delivery and discovery [2,3], Chemical synthesis [4], biological screening [5], cell lysis [6], PCR [7], etc Microfluidic systems offer many advantages, including portability, low cost, reliable accuracy, and low sample consumption. However, samples must be homogeneously mixed before the analysis process to obtain accurate results.…”

Section: Introductionmentioning

confidence: 99%

Micromixing optimization of non-newtonian fluids with heterogeneous zeta potential

et al. 2023

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This paper aims to improve micromixing in T-shaped microchannels using heterogeneous zeta potential, which is essential for analyzing biochemical fluids in various industrial applications. We investigate the impact of different parameters, including zeta potential, applied electric field, and a number of heterogeneous surface patterns, on microchannel mixing performance. Our results demonstrate that increasing the zeta potential on the heterogeneous pair patches amplifies the recirculation zone, improving mixing performance within the microchannel. Therefore, we recommend increasing the value of heterogeneous zeta potential on the patches to enhance the mixing performance further. Additionally, we examine the non-Newtonian behavior of the fluid using the power law model and find that pseudoplastic fluids (n < 1) have lower mixing performance compared to dilatant fluids (n > 1) due to higher velocity. We evaluate the effects of various parameters on mixing performance to design an efficient micromixer that achieves rapid and homogeneous mixing of sample fluids. Finally, we optimize the micromixing efficiency using Taguchi to achieve the optimum value of mixing. The optimized value of micromixing efficiency for the corresponding non-Newtonian fluid is also determined.

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“…Microfluidic mixing has great potential in a variety of biomedical [1] and chemical applications [2], such as the production of liposomes for drug delivery [1] and the synthesis of new materials [3,4] and micro/nano particles [5,6]. However, the microfluidic mixing process is inherently slow due to the * Authors to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of passive mixing via arc microchannel with sharp corner structure

Huang

Fan

Liu

et al. 2021

J. Micromech. Microeng.

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A novel microfluidic device for efficient passive mixing is reported. A series of sharp corner structures designed on side wall of an arc microchannel was utilized to induce three-dimensional vortices, which strongly stretched and folded the interface and significantly increased the interfacial contact area between different fluids. Additionally, the sharp corner structure induced high radial velocity and reduced the diffusion length because of the restricted effect of the geometrical structure. Eventually, the fluid mixing was significantly enhanced, and a mixing efficiency from ∼87% to 92% was achieved at moderate Reynolds number (Re) from 3.0 to 24.2 (10 to 80 μl min−1). The influence of the sharp corner position on the mixing was also investigated by the experiment and the numerical simulation. With single-layer structure and high mixing efficiency, the present device has great potential in the mixing process in variety of lab-chip applications, such as clinic diagnosis and analytic chemistry.

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Synthesis of dimpled and submicron-sized polymer particles of different morphologies using free micromixer

Cited by 13 publications

References 23 publications

Synthetic Strategies for Polymer Particles with Surface Concavities

Synthetic Strategies for Polymer Particles with Surface Concavities

Micromixing optimization of non-newtonian fluids with heterogeneous zeta potential

Enhancement of passive mixing via arc microchannel with sharp corner structure

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