Fabrication of a passive 3D mixer using CO2 laser ablation of PMMA and PDMS moldings

被引：14
作者：
Riahi, Mohammadreza [1 ]
机构：
[1] Shahid Beheshti Univ, Laser & Plasma Res Inst, Tehran, Iran
来源：
MICROCHEMICAL JOURNAL | 2012年 / 100卷
关键词：
Microfluidic device; Passive mixer; CO2 laser ablation; PMMA; PDMS molding; MICROFLUIDIC SYSTEMS;
D O I：
10.1016/j.microc.2011.08.002
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this article a novel method for the fabrication of a passive 3D mixer is presented. It has been shown that in CO2 laser ablation of Polymethyl Methacrylate (PMMA), bending and straight cone structures can be fabricated by adjusting the laser scanning parameters. The effect of the bending cones in the flow direction of a fluid is discussed with computer simulation and a passive mixer based on such structures is designed. Bending and straight cones are fabricated on a PMMA substrate using CO2 laser ablation technique. The structure is molded with PDMS to make two half-channels with bending and straight cones extending out of the surface. Two PDMS structures are stacked on top of each other with a certain displacement to fabricate the mixer. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：14 / 20
页数：7
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