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Reaction and diffusion dynamics in a microfluidic format

Published online by Cambridge University Press:  15 March 2011

Dietrich Kohlheyer ,
Rob G. H. Lammertink ,
Stefan Schlautmann ,
Geert A. J. Besselink ,
Paul Vulto  and
Richard B. M. Schasfoort
Dietrich Kohlheyer
Affiliation:
MESA+ Research Institute, Biochip Group, University of TwenteP.O. Box 217 7500 AE Enschede, The Netherlands
Rob G. H. Lammertink
Affiliation:
MESA+ Research Institute, Biochip Group, University of TwenteP.O. Box 217 7500 AE Enschede, The Netherlands
Stefan Schlautmann
Affiliation:
MESA+ Research Institute, Biochip Group, University of TwenteP.O. Box 217 7500 AE Enschede, The Netherlands
Geert A. J. Besselink
Affiliation:
MESA+ Research Institute, Biochip Group, University of TwenteP.O. Box 217 7500 AE Enschede, The Netherlands
Paul Vulto
Affiliation:
MESA+ Research Institute, Biochip Group, University of TwenteP.O. Box 217 7500 AE Enschede, The Netherlands
Richard B. M. Schasfoort
Affiliation:
MESA+ Research Institute, Biochip Group, University of TwenteP.O. Box 217 7500 AE Enschede, The Netherlands
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Abstract

A novel microfluidic structure based on the electroosmotic guiding of reagent streams is presented that can be used as a fully adjustable diffusion based microreactor. The position and the width of two aqueous reactant streams entering a laminar-flow chamber can be controlled individually by changing the flow ratio of three parallel guiding streams containing buffer only. To control the intensity of product formation, the overlapping area between the diffusion regions of the two different reagent streams can be adjusted. This article describes the fabrication and experimental characterization of the device.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 820: Symposia O/R – Nanoengineered Assemblies and Advanced Micro/Nanosystems , 2004 , O3.5
Copyright
Copyright © Materials Research Society 2004

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