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Tesla Valve-Based Flexible Microhybrid Chip with Unidirectional Flow Properties

Authors :
Junyao Wang
Bowen Cui
Huan Liu
Xingyu Chen
Yunpeng Li
Rui Wang
Tianhong Lang
Hanbo Yang
null lixiang Li
Hongxu Pan
Jingran Quan
Yansong Chen
Jianxin Xu
Yahao Liu
Source :
ACS omega. 7(36)
Publication Year :
2022

Abstract

Flexible microfluidic chips have good application prospects in situations with easy bending and complex curvature. An important factor affecting the flexible microfluidic chip is its structural complexity. For example, the hybrid chip includes flow channels, mixing chambers, and one-way valves. How to achieve the same function with as few structures as possible has become an important research topic at present. In this paper, a Tesla valve micromixer with unidirectional flow characteristics is presented. A passive laminar flow Tesla valve micromixer is fabricated through 3D printing technology and limonene dissolution method. The main process is as follows: First of all, high impact polystyrene (HIPS) material was employed to make the Tesla valve channel mold. Second, the channel mold was dissolved in the limonene solvent. The mold of Tesla micromixer is made of HIPS material, the mixing experiment displace that the Tesla valve micromixer is characterized by unidirectional flow compared with the common T-shaped planar channel. At the same time, the 5-AAC Tesla valve micromixer can increase the mixing efficiency to 87%. By using four different groove structures and different flow rates of the mixing effect experiment, the conclusion is that the mixing efficiency of the 6-AAC Tesla valve micromixer is up to 0.89 when the flow rate is 2 mL/min. The results manifest that the Tesla valve structure can effectively improve the mixing efficiency.

Details

ISSN :
24701343
Volume :
7
Issue :
36
Database :
OpenAIRE
Journal :
ACS omega
Accession number :
edsair.doi.dedup.....e7452465800b5a2108787dc1df4eba0e