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Shi Q, Wu J, Chen H, Xu X, Yang YB, Ding M. Inertial migration of polymer micelles in a square microchannel. SOFT MATTER 2024; 20:1760-1766. [PMID: 38295375 DOI: 10.1039/d3sm01304a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Using a hybrid simulation approach that combines a lattice-Boltzmann method for fluid flow and a molecular dynamics model for polymers, we investigate the inertial migration of star-like and crew-cut polymer micelles in a square microchannel. It is found that they exhibit two types of equilibrium positions, which shift further away from the center of the microchannel when the Reynolds number (Re) increases, as can be observed for soft particles. What differs from the behaviors of soft particles is that here, the blockage ratio is no longer the decisive factor. When the sizes are the same, the star-like micelles are always relatively closer to the microchannel wall as they gradually transition from spherical to disc-like with the increase of Re. In comparison, the crew-cut micelles are only transformed into an ellipsoid. Conversely, when the hydrophobic core sizes are the same, the equilibrium position of the star-like micelles becomes closer to that of the crew-cut micelles. Our results demonstrate that for polymer micelles with a core-shell structure, the equilibrium position is no longer solely determined by their overall dimensions but depends on the core and shell's specific dimensions, especially the hydrophobic core size. This finding opens up a new approach for achieving the separation of micelles in inertial migration.
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Affiliation(s)
- Qingfeng Shi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jintang Wu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Haisong Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Xiaolong Xu
- School of Environmental and Chemical Engineering, Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
| | - Yong-Biao Yang
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Mingming Ding
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
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Xu S, Wang Z, Yu Y, Zhu Q, Zhang X. Conformations and dynamic behaviors of confined wormlike chains in a pressure-driven flow. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
The conformations and dynamic behaviors of wormlike chains confined by a slit in a pressure-driven flow were investigated using dissipative particle dynamics method. The wormlike chains exhibit varying conformations due to the varying shear stresses across the slit. The wormlike chain solution can be well described by the power-law fluid, and the power-law index decreases with the increase in chain rigidity. We also presented that the wormlike chain undergoes tumbling motion in the vicinity of the wall in the presence of pressure-driven flow. We also found that the wormlike chains can migrate both away from the wall and slightly away from the slit center, and the migration away from the slit center increases as the chain rigidity is increased because of hydrodynamic interactions induced in a more rigid wormlike chain.
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Affiliation(s)
- Shaofeng Xu
- School of Mechatronics and Energy Engineering, NingboTech University , Ningbo , 315000 , China
| | - Ziheng Wang
- Faculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University , Hangzhou , 310000 , China
| | - Yifan Yu
- School of Mechanical Engineering, Zhejiang University , Hangzhou , 310000 , China
| | - Qiaohui Zhu
- School of Mechanical Engineering, Zhejiang University , Hangzhou , 310000 , China
| | - Xuechang Zhang
- School of Mechatronics and Energy Engineering, NingboTech University , Ningbo , 315000 , China
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Tang Z, Pan X, Zhou H, Li L, Ding M. Conformation of a Comb-like Chain Free in Solution and Confined in a Nanochannel: From Linear to Bottlebrush Structure. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zengxian Tang
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining 835000, P. R. China
| | - Xuejun Pan
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, P. R. China
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hengwei Zhou
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining 835000, P. R. China
| | - Lianwei Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Mingming Ding
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining 835000, P. R. China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
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Ding M, Hou L, Duan X, Shi T, Li W, Shi AC. Translocation of Micelles through a Nanochannel. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingming Ding
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Lei Hou
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Xiaozheng Duan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Tongfei Shi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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Ding M, Li L. Flow-Induced Translocation and Conformational Transition of Polymer Chains through Nanochannels: Recent Advances and Future Perspectives. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00909] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mingming Ding
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Lianwei Li
- Food Science and Processing Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
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Yu WC. Translocation of Heterogeneous Flexible Polymers Assisted by Binding Particles. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2387-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ding M, Chen Q, Duan X, Shi T. Flow-Driven Translocation of a Diblock Copolymer through a Nanopore. J Phys Chem B 2019; 123:8848-8852. [PMID: 31566376 DOI: 10.1021/acs.jpcb.9b07481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Using a hybrid molecular dynamic and lattice Boltzmann simulation method, we investigate the flow-driven translocation of a diblock copolymer which is composed of a hydrophilic block and a hydrophobic block through a nanopore. Our results illustrate the nontrivial translocation dynamics of diblock copolymers. We find that the increase in the number of hydrophobic segments requires a larger critical flow rate and a reduced translocation time, which implies that the separation of diblock copolymers with different fractions of hydrophobic segments can be achieved by adjusting the flow rate. Our work deepens the understanding of copolymer translocation through a nanopore and provides an insight into designing related microscaled separation devices.
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Affiliation(s)
- Mingming Ding
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Qiaoyue Chen
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology , Yili Normal University , Yining 835000 , P. R. China
| | - Xiaozheng Duan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Tongfei Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,School of Applied Chemistry and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
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Xu S, Lou Y, He P, Wang X, Wang J. Effect of solvent quality on Poiseuille flow of polymer solutions in microchannels: A dissipative particle dynamics study. J Appl Polym Sci 2019. [DOI: 10.1002/app.47345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Shaofeng Xu
- Ningbo Institute of Technology; Zhejiang University; Zhejiang China
- Department of Mechanical Engineering; Northwestern University; Evanston Illinois 60208
| | - Yinghou Lou
- Ningbo Institute of Technology; Zhejiang University; Zhejiang China
| | - Ping He
- Ningbo Institute of Technology; Zhejiang University; Zhejiang China
| | - Xiangyang Wang
- Ningbo Institute of Technology; Zhejiang University; Zhejiang China
| | - Jiugen Wang
- School of Mechanical Engineering; Zhejiang University; Zhejiang China
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Zheng T, Zhu M, Yang J, He J, Waqas M, Li L. Revisiting the Flow-Driven Translocation of Flexible Linear Chains through Cylindrical Nanopores: Is the Critical Flow Rate Really Independent of the Chain Length? Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b02082] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tao Zheng
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mo Zhu
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jinxian Yang
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jing He
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Muhammad Waqas
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lianwei Li
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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