3D printed molds for non-planar PDMS microfluidic channels

被引：148

作者：

Hwang, Yongha ^{[1
]}

Paydar, Omeed H. ^{[2
]}

Candler, Robert N. ^{[1
,3
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Biomed Engn Interdept Program, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2015年 / 226卷

基金：

美国国家科学基金会;

关键词：

Three-dimensionally (3D) printing; Arbitrary microchannel geometry; Microfluidics; Polydimethylsiloxane (PDMS); POLYDIMETHYLSILOXANE; FABRICATION; SYSTEMS; VALVES;

D O I：

10.1016/j.sna.2015.02.028

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article introduces the use of three-dimensionally (3D) printed molds for rapid fabrication of complex and arbitrary microchannel geometries that are unattainable through existing soft lithography techniques. The molds are printed directly from computer-aided design (CAD) files, making rapid prototyping of microfluidic devices possible in hours. The resulting 3D printed structures enable precise control of various device geometries, such as the profile of the channel cross-section and variable channel diameters in a single device. We report fabrication of complex 3D channels using these molds with polydimethylsiloxane (PDMS) polymer. Technology limits, including surface roughness, resolution, and replication fidelity are also characterized, demonstrating 100-mu m features and sub-micron replication fidelity in PDMS channels. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：137 / 142

页数：6

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