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A Passive Micromixer for Bioanalytical Applications [PDF]

, 2014
Three passive micromixers with different geometries, i.e. zigzag, spiral, and split and merge (SaM) with labyrinthine channels, are compared with respect to their mixing efficiency by means of a computational study. The specifications are imposed from flexible printed circuit (FPC) technology which is used for their fabrication and from the ...
Kefala, IK, Papadopoulos, VE, Kokkoris, G, Karpou, G, Moschou, D, Papadakis, G, Tserepi, A, 4th Micro and Nano Flows Conference (MNF2014)   +7 more
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Design and Simulation of a Passive Micromixer with Gourd-Shaped Channel

Journal of Nanoscience and Nanotechnology, 2019
A gourd-shaped contraction-expansion design is proposed for a passive planar micromixer in this study. The mixing performance of the micromixer is analyzed numerically and compared with a T-shaped planar micromixer. The gourd-shaped contraction-expansion structure can enhance the vortex-formation and mixing abilities of the micromixer.
Huanhuan Shi, Baibiao Huang, Mengqiu Long   +2 more
exaly   +3 more sources

Print-and-Peel Fabricated Passive Micromixers

Langmuir, 2009
Advection driven mixing is essential for microfluidics and poses challenges to the design of microdevices. Force transducers or complex channel configurations provide means for, respectively, active or passive disrupting of laminar flows and for homogenizing the composing fluids.
Marlon S, Thomas, Joseph M, Clift, Brent, Millare, Valentine I, Vullev   +3 more
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Active and passive micromixers: A comprehensive review

Chemical Engineering and Processing - Process Intensification, 2020
Abstract The present review (with 205 refs.) addresses the need for microdevices, presents the basic microfluidic equations and describes the relevant numerical and experimental approaches. Various types and designs of passive and active micromixers are presented.
Morteza Bayareh, Mohsen Nazemi Ashani, Azam Usefian   +2 more
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Active and Passive Micromixers

2020
Micromixers are classified into two types: active and passive micromixers. Active micromixers promote mixing using moving parts or some external agitation/energy to stir the fluids. Magnetic energy, electrical energy, pressure disturbance, and ultrasonic are examples of the external energies to enhance mixing.
Arshad Afzal, Kwang-Yong Kim
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Recirculating, passive micromixer with a novel sawtooth structure

Lab Chip, 2006
A microfluidic device capable of recirculating nano to microlitre volumes in order to efficiently mix solutions is described. The device consists of molded polydimethyl siloxane (PDMS) channels with pressure inlet and outlet holes sealed by a glass lid. Recirculation is accomplished by a repeatedly reciprocated flow over an iterated sawtooth structure.
Kevin P, Nichols, Julia R, Ferullo, Antje J, Baeumner   +2 more
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A flexible layout design method for passive micromixers

Biomedical Microdevices, 2012
This paper discusses a flexible layout design method of passive micromixers based on the topology optimization of fluidic flows. Being different from the trial and error method, this method obtains the detailed layout of a passive micromixer according to the desired mixing performance by solving a topology optimization problem.
Yongbo, Deng, Zhenyu, Liu, Ping, Zhang, Yongshun, Liu, Qingyong, Gao, Yihui, Wu   +5 more
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Passive micromixers with dual helical channels

SPIE Proceedings, 2015
In this study, a three-dimensional (3D) micromixer with cross-linked double helical microchannels is studied to achieve rapid mixing of fluids at low Reynolds numbers (Re). The 3D micromixer takes full advantages of the chaotic advection model with helical microchannels; meanwhile, the proposed crossing structure of double helical microchannels enables
Keyin Liu, Qing Yang, Feng Chen, Yulong Zhao, Xiangwei Meng, Chao Shan, Yanyang Li   +6 more
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Passive micromixer with break-up obstructions

SPIE Proceedings, 2006
In this paper, we report on design and fabrication of a passive microfluidic mixer capable of mixing at low Reynolds numbers ( Re ). Passive mixers typically use channel geometry to mix fluids, and many previously reported designs that work only at moderate to high Reynolds numbers and are often difficult to fabricate.
Ali Asgar S. Bhagat, Erik T. K. Peterson, Ian Papautsky   +2 more
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Mathematical Analysis of a Spiral Passive Micromixer

2021
This research work possesses a mathematical analysis and comparison of mixing performance and flow behavior inside microchannels with different geometries: simple T shape and spiral/helical shape. The flow analysis is carried out using Navier–Stokes equations, and mixing performance of two fluids, namely water and dye, is numerically calculated.
Syed Farhan Javed, Mohammad Zunaid, Mubashshir Ahmad Ansari   +2 more
openaire   +1 more source