Numerical investigation of electrowetting-based droplet splitting in closed digital microfluidic system: Dynamics, mode, and satellite droplet

2018 ◽  
Vol 30 (11) ◽  
pp. 112001 ◽  
Author(s):  
Yin Guan ◽  
Baiyun Li ◽  
Lu Xing
Keyword(s):  
System Dynamics ◽  
Numerical Investigation ◽  
Microfluidic System ◽  
Satellite Droplet ◽  
Droplet Splitting ◽  
Digital Microfluidic

scholarly journals Microfluidic patterning using a digital microfluidic system

AIP Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 125115
Author(s):  
Ying-Jhen Ciou ◽  
Hsiang-Ting Lee ◽  
Yi-Wei Lin ◽  
Da-Jeng Yao
Keyword(s):  
Microfluidic System ◽  
Digital Microfluidic ◽  
Microfluidic Patterning

scholarly journals Ultra-Portable Smartphone Controlled Integrated Digital Microfluidic System in a 3D-Printed Modular Assembly

Micromachines ◽  
2015 ◽  
Vol 6 (9) ◽  
pp. 1289-1305 ◽  
Author(s):  
Mohamed Yafia ◽  
Ali Ahmadi ◽  
Mina Hoorfar ◽  
Homayoun Najjaran
Keyword(s):  
Microfluidic System ◽  
Modular Assembly ◽  
3D Printed ◽  
Digital Microfluidic

scholarly journals Phase separation of multiphase droplets in a digital microfluidic device

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Mun Mun Nahar ◽  
Hyejin Moon
Keyword(s):  
Phase Separation ◽  
Capillary Number ◽  
Digital Microfluidics ◽  
Separation Performance ◽  
Comprehensive Investigation ◽  
Electrowetting On Dielectric ◽  
Splitting Technique ◽  
Droplet Splitting ◽  
Two Phases ◽  
Digital Microfluidic

Abstract This study reports the first comprehensive investigation of separation of the immiscible phases of multiphase droplets in digital microfluidics (DMF) platform. Electrowetting-on-dielectric (EWOD) actuation has been used to mechanically separate the phases. Phase separation performance in terms of percentage residue of one phase into another phase has been quantified. It was conceived that the residue formation can be controlled by controlling the deformation of the phases. The larger capillary number of the neck forming phase is associated with the larger amount of deformation as well as more residue. In this study, we propose two different ways to control the deformation of the phases. In the first method, we applied different EWOD operation voltages on two phases to maintain equal capillary numbers during phase separation. In the second method, while keeping the applied voltages same on both sides, we tested the phase separation performance by varying the actuation schemes. Less than 2% of residue was achieved by both methods, which is almost 90% improvement compared to the phase separation by the conventional droplet splitting technique in EWOD DMF platform, where the residue percentage can go up to 20%.

Three Dimensional Triangle Chaotic Micromixer

2014 ◽  
Vol 875-877 ◽  
pp. 1189-1193 ◽  
Author(s):  
Lin Li ◽  
Qing De Chen ◽  
C.T. Tsai
Keyword(s):  
Numerical Investigation ◽  
Three Dimensional ◽  
Microfluidic System ◽  
Chaotic Advection ◽  
Mixing Efficiency ◽  
Mixing Index ◽  
Ansys Fluent ◽  
Essential Component ◽  
Highly Efficient

Micromixer is essential component of microfluidic system which has wide application in the field of chemistry and biochemistry. A highly efficient and easily fabricated three dimensional micromixer based on chaotic advection is proposed and investigated. The depth of 25μm for each layer of micromixer and two kinds of fluids, which have viscosities of 0.00097kgm-1s-1and 0.186kgm-1s-1with Re number from 0.001 to 150, are adopted for numerical investigation of mixing efficiency by using ANSYS-Fluent. High mixing index of more than 90% can be obtained by using less than 300μm of length under Re number of 0.01 for mixing Fluid 1. However, it requires 850μm to achieve mixing index of more than 90% for hard-to-mix Fluid 2.

scholarly journals A digital microfluidic system with 3D microstructures for single-cell culture

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Jiao Zhai ◽  
Haoran Li ◽  
Ada Hang-Heng Wong ◽  
Cheng Dong ◽  
Shuhong Yi ◽  
...  
Keyword(s):  
Cell Culture ◽  
Single Cell ◽  
Microfluidic System ◽  
Single Cell Culture ◽  
Digital Microfluidic
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