Precise manipulation of longitudinal dynamic self-assembly of particles in the viscoelastic fluid within a straight microchannel
The lack of a simple operable method for longitudinal dynamic self-assembly of particles in a microchannel is one of the main problems in applying this technology to a wide range of researches, such as biomedical engineering, material science, and computation. Herein, a viscoelasticity-induced trapp...
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| creator | Liu, Linbo Xu, Haoyan Xiu, Haibo Xiang, Nan Ni, Zhonghua |
| description | The lack of a simple operable method for longitudinal dynamic self-assembly of particles in a microchannel is one of the main problems in applying this technology to a wide range of researches, such as biomedical engineering, material science, and computation. Herein, a viscoelasticity-induced trapping microfluidic system for flowing particles is proposed to increase the maneuverability of longitudinal dynamic self-assembly of particles and achieve real-time control of the interparticle spacings and the frequency of particles passing through the outlet. Two kinds of functional microstructures and a side-channel were designed to preprocessing the randomly distributed particles to make particles no aggregation and evenly distributed and realize real-time control of the particle volume concentration. Randomly distributed particles could be focused into a line and become equally spaced in the center axis of a straight microchannel under the balance of the elastic force and the viscoelasticity-induced effective repulsive force. Besides, a finite element method model is established to analyze the processes of particles flowing in each functional microstructure. Therefore, a step forward in this microfluidic technology can provide significant promotion for a wide range of researches. |
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Therefore, a step forward in this microfluidic technology can provide significant promotion for a wide range of researches.</description><identifier>EISSN: 2331-8422</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Biomedical engineering ; Biomedical materials ; Finite element method ; Maneuverability ; Microchannels ; Microfluidics ; Real time ; Self-assembly ; Viscoelastic fluids ; Viscoelasticity</subject><ispartof>arXiv.org, 2019-11</ispartof><rights>2019. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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| subjects | Biomedical engineering Biomedical materials Finite element method Maneuverability Microchannels Microfluidics Real time Self-assembly Viscoelastic fluids Viscoelasticity |
| title | Precise manipulation of longitudinal dynamic self-assembly of particles in the viscoelastic fluid within a straight microchannel |
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