A Peristaltic Micro Pump Driven by a Rotating Motor with Magnetically Attracted Steel Balls

被引：34

作者：

Du, Min ^{[1
]}

Ye, Xiongying ^{[1
]}

Wu, Kang ^{[1
]}

Zhou, Zhaoying ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Precis Instruments & Mech, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China

来源：

SENSORS | 2009年 / 9卷 / 04期

关键词：

Micropump; microfluidics; PDMS; lab-on-a-chip; soft lithography; PDMS; FABRICATION; DESIGN;

D O I：

10.3390/s90402611

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, we present a membrane peristaltic micro pump driven by a rotating motor with magnetically attracted steel balls for lab-on-a-chip applications. The fabrication process is based on standard soft lithography technology and bonding of a PDMS layer with a PMMA substrate. A linear flow rate range similar to 490 mu L/min was obtained by simply varying the rotation speed of a DC motor, and a maximum back pressure of 592 Pa was achieved at a rotation speed of 43 rpm. The flow rate of the pump can also be adjusted by using steel balls with different diameters or changing the number of balls. Nevertheless, the micro pump can also work in high speed mode. A high back pressure up to 10 kPa was achieved at 500 rpm using a high speed DC motor, and an utmost flow rate up to 5 mL/min was reached.

引用

页码：2611 / 2620

页数：10

共 24 条

[1] A high performance bidirectional micropump for a novel artificial sphincter system [J].