Improving Alternate Flow mixing by Obstacles Located along a Micro-Channel

• Type: Article in International Conference Proceedings Book
• Date: 2009

Authors

Miranda, JM (Author) FEUP; Teixeira, JA (Author) Other; Vicente, AA (Author) Other; Correia, JH (Author) Other; Minas, G (Author) Other

Conference proceedings International

Title: 2009 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-20

Pages: 7034-7036

Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society

Minneapolis, MN, SEP 03-06, 2009

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

FOS: Engineering and technology > Environmental biotechnology

Other information

Authenticus ID: P-003-PSC

DOI: 10.1109/iembs.2009.5333311

Abstract (EN): An essential requirement for any practical fully integrated lab-on-a-chip device is the ability to mix two or more fluids thoroughly and efficiently, i.e., in a reasonable amount of time. This paper presents a way to improve mixing in microfluidic systems combining alternate flows with obstacles using passive mixers. Numerical simulations show that the layers of high and low solute concentration, created by the alternate flow, are split into smaller chunks of fluid, due to the obstacles inserted in the mixing channel, increasing the contact area between high and low concentration regions and decreasing the critical mixing length. This improvement can lead to shorter mixing channels and to low-cost mixers fabricated by planar lithographic technology.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3