Jump to main content
Jump to site search

Issue 6, 2004
Previous Article Next Article

Micro magnetic stir-bar mixer integrated with parylene microfluidic channels

Author affiliations

Abstract

Previously, we reported a micro magnetic stir-bar mixer driven by an external rotating magnetic field and its rapid mixing performance in polydimethyl-siloxane (PDMS) channels. The PDMS piece with embedded fluid channels were manually aligned to a glass substrate and assembled. In this paper, we report the fabrication and testing results of a micro magnetic stir-bar monolithically integrated in parylene surface-micromachined channels with improved design features, including small tolerance of the stir-bar to channel wall (10 µm). Using of parylene based microchannels with improved design not only provides improved mixing, but also eliminates certain problems associated with PDMS-based channels. For example, porosity of PDMS causes evaporation and absorption of chemicals and thus channels made of PDMS are prone to cross-contamination. We have also demonstrated that the magnetic stir-bar can be used to pump liquid in micro channels.

Back to tab navigation

Article information


Submitted
03 Mar 2004
Accepted
21 Jun 2004
First published
14 Oct 2004

Lab Chip, 2004,4, 608-613
Article type
Paper

Micro magnetic stir-bar mixer integrated with parylene microfluidic channels

K. S. Ryu, K. Shaikh, E. Goluch, Z. Fan and C. Liu, Lab Chip, 2004, 4, 608
DOI: 10.1039/B403305A

Social activity

Search articles by author

Spotlight

Advertisements