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Article

Simulation and Experimental Study of Ion Concentration Polarization Induced Electroconvective Vortex and Particle Movement

1
School of Mechanical Engineering, Korea University, 145 Anam-ro, Seoungbuk-gu, Seoul 02841, Korea
2
Department of IT Convergence, Korea University, 145 Anam-ro, Seoungbuk-gu, Seoul 02841, Korea
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Smart Device Team, Samsung Research, Samsung Electronics Co., Seoul R&D Campus, 34 Seoungchon-gil, Seocho-gu, Seoul 06765, Korea
4
Absology Co., Ltd., Anyang 14057, Korea
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Department of Electrical Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Korea
6
KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Korea
*
Authors to whom correspondence should be addressed.
Academic Editor: Bumjoo Kim
Micromachines 2021, 12(8), 903; https://doi.org/10.3390/mi12080903
Received: 29 June 2021 / Revised: 23 July 2021 / Accepted: 26 July 2021 / Published: 29 July 2021
(This article belongs to the Special Issue State-of-the-Art Nanofluidics)
Ion concentration polarization (ICP) has been widely applied in microfluidic systems in pre-concentration, particle separation, and desalination applications. General ICP microfluidic systems have three components (i.e., source, ion-exchange, and buffer), which allow selective ion transport. Recently developed trials to eliminate one of the three components to simplify the system have suffered from decreased performance by the accumulation of unwanted ions. In this paper, we presented a new ICP microfluidic system with only an ion-exchange membrane-coated channel. Numerical investigation on hydrodynamic flow and electric fields with a series of coupled governing equations enabled a strong correlation to experimental investigations on electroconvective vortices and the trajectory of charged particles. This study has significant implications for the development and optimization of ICP microfluidic and electrochemical systems for biomarker concentration and separation to improve sensing reliability and detection limits in analytic chemistry. View Full-Text
Keywords: ion concentration polarization; electroconvective vortex; manipulation; ion-permselective material ion concentration polarization; electroconvective vortex; manipulation; ion-permselective material
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MDPI and ACS Style

Yoon, J.; Cho, Y.; Kim, J.; Kim, H.; Na, K.; Lee, J.H.; Chung, S. Simulation and Experimental Study of Ion Concentration Polarization Induced Electroconvective Vortex and Particle Movement. Micromachines 2021, 12, 903. https://doi.org/10.3390/mi12080903

AMA Style

Yoon J, Cho Y, Kim J, Kim H, Na K, Lee JH, Chung S. Simulation and Experimental Study of Ion Concentration Polarization Induced Electroconvective Vortex and Particle Movement. Micromachines. 2021; 12(8):903. https://doi.org/10.3390/mi12080903

Chicago/Turabian Style

Yoon, Junghyo, Youngkyu Cho, Jaehoon Kim, Hyunho Kim, Kyuhwan Na, Jeong H. Lee, and Seok Chung. 2021. "Simulation and Experimental Study of Ion Concentration Polarization Induced Electroconvective Vortex and Particle Movement" Micromachines 12, no. 8: 903. https://doi.org/10.3390/mi12080903

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