Article
Version 1
Preserved in Portico This version is not peer-reviewed
A Rapid Magnetofluidic Micromixer Using Diluted Ferrofluid
Version 1
: Received: 18 October 2016 / Approved: 18 October 2016 / Online: 18 October 2016 (08:00:38 CEST)
A peer-reviewed article of this Preprint also exists.
Hejazian, M.; Nguyen, N.-T. A Rapid Magnetofluidic Micromixer Using Diluted Ferrofluid. Micromachines 2017, 8, 37. Hejazian, M.; Nguyen, N.-T. A Rapid Magnetofluidic Micromixer Using Diluted Ferrofluid. Micromachines 2017, 8, 37.
Abstract
Effective and rapid mixing is essential for various chemical and biological assays. The present work reports a simple and low-cost micromixer based on magnetofluidic actuation. The device takes advantage of magnetoconvective secondary flow, a bulk flow induced by an external magnetic field, for mixing. A paramagnetic stream of diluted ferrofluid and a non-magnetic stream are introduced to a straight microchannel. A permanent magnet placed next to the microchannel induced a non-uniform magnetic field. The magnetic field gradient and the mismatch in magnetic susceptibility between the two streams create a body force, which leads to rapid and efficient mixing. The micromixer reported here could achieve a high throughput and a high mixing efficiency of 90 % in a relatively short microchannel.
Keywords
magnetic; microfluidics; mixing; magnetoconvection; ferrofluid
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment