Simulation and experimental study of ion concentration polarization induced electroconvective vortex and particle movement

Junghyo Yoon; Youngkyu Cho; Jaehoon Kim; Hyunho Kim; Kyuhwan Na; Jeong Hoon Lee; Seok Chung

doi:10.3390/mi12080903

Simulation and experimental study of ion concentration polarization induced electroconvective vortex and particle movement

Junghyo Yoon, Youngkyu Cho, Jaehoon Kim, Hyunho Kim, Kyuhwan Na, Jeong Hoon Lee, Seok Chung

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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.

Original language	English
Article number	903
Journal	Micromachines
Volume	12
Issue number	8
DOIs	https://doi.org/10.3390/mi12080903
Publication status	Published - 2021 Aug

Bibliographical note

Funding Information:
Funding: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2020R1A2B5B03002005) and the Korea Evaluation Institute of Industrial Technology (KEIT) grant funded by the Korea government (MSIT) (No. 20009125).

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

Electroconvective vortex
Ion concentration polarization
Ion-permselective material
Manipulation

ASJC Scopus subject areas

Control and Systems Engineering
Mechanical Engineering
Electrical and Electronic Engineering

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10.3390/mi12080903

Cite this

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title = "Simulation and experimental study of ion concentration polarization induced electroconvective vortex and particle movement",

abstract = "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.",

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author = "Junghyo Yoon and Youngkyu Cho and Jaehoon Kim and Hyunho Kim and Kyuhwan Na and Lee, {Jeong Hoon} and Seok Chung",

note = "Funding Information: Funding: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2020R1A2B5B03002005) and the Korea Evaluation Institute of Industrial Technology (KEIT) grant funded by the Korea government (MSIT) (No. 20009125). Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = aug,

doi = "10.3390/mi12080903",

language = "English",

volume = "12",

journal = "Micromachines",

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AU - Yoon, Junghyo

AU - Cho, Youngkyu

AU - Kim, Jaehoon

AU - Kim, Hyunho

AU - Na, Kyuhwan

AU - Lee, Jeong Hoon

AU - Chung, Seok

N1 - Funding Information: Funding: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2020R1A2B5B03002005) and the Korea Evaluation Institute of Industrial Technology (KEIT) grant funded by the Korea government (MSIT) (No. 20009125). Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/8

Y1 - 2021/8

N2 - 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.

AB - 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.

KW - Electroconvective vortex

KW - Ion concentration polarization

KW - Ion-permselective material

KW - Manipulation

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ER -

Simulation and experimental study of ion concentration polarization induced electroconvective vortex and particle movement

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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