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Applied Mathematics and Mechanics >

2020 , Vol. 41 >Issue 6: 939 - 952

DOI: https://doi.org/10.1007/s10483-020-2618-6

Articles

Design and fluid-structure interaction analysis for a microfluidic T-junction with chemo-responsive hydrogel valves

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  • 1. School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 1417466191, Iran;
    2. Bourns College of Engineering, University of California, Riverside, California 92521, U. S. A.;
    3. Department of Mechanical Engineering, University of British Columbia, Ontario V6T 1Z2, Canada;
    4. Department of Mechanical Engineering, University of Larestan, Lar 7431716137, Iran

Received date: 2019-12-20

  Revised date: 2020-02-29

  Online published: 2020-06-08

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Abstract

Due to the deformation ability even under small loads, hydrogels have been widely used as a type of soft materials in various applications such as actuating and sensing, and have attracted many researchers to study their behaviors. In this paper, the behavior of hydrogel micro-valves with reverse sensitivity to the pH inside a T-junction flow sorter is investigated. With the fluid-structure interaction (FSI) approach, the effects of various parameters such as the inlet pressure and the pH value on the stress and deformation of the micro-valves are examined, and the results with and without FSI, including the flow rate and the closure pH, are compared. In order to reduce the response time of hydrogels, the effects of three different patterns on the performance of the microvalves are explored. Eventually, it is concluded that FSI is a key influential factor in designing and analyzing the behaviors of hydrogels.

Key words： hydrogel; pH-sensitive; T-junction flow sorter; fluid-structure interaction (FSI); micro-valve

Cite this article

E. KHANJANI, A. HAJARIAN, A. KARGAR-ESTAHBANATY, N. ARBABI, A. TAHERI, M. BAGHANI . Design and fluid-structure interaction analysis for a microfluidic T-junction with chemo-responsive hydrogel valves[J]. Applied Mathematics and Mechanics, 2020 , 41(6) : 939 -952 . DOI: 10.1007/s10483-020-2618-6

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