Hartung-Gorre Verlag

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edited by   P. A. Besse,
J. Brugger,
M. Gijs,
R. S. Popovic,
Ph. Renaud

Vol. 24:




Ulrike Lehmann
Manipulation of  Magnetic Microparticles
in Liquid Phases for On-Chip
Biomedical Analysis Methods.

First Edition 2008. X, 162 p.; € 64,00.
ISBN 978-3-86628-209-4



Magnetic actuation offers many advantages: long range of the force, insensitivity to environmental influences and high force densities. In the last years these advantages led to increased interest in using this type of actuation for Micro-Electro Mechanical Systems (MEMS). In microfluidics and BioMEMS however, magnetic actuation plays only a negligible role, while capillary or electroosmotic forces dominate.

This book demonstrates that using magnetic microparticles inside channels or discrete liquid volumes (microdroplets) augments the applicability of microfluidics systems especially with respect to miniaturized bioanalytical procedures. The magnetic microparticles can be used as mobile substrates for the transport of biomolecules while they simultaneously serve as force mediators, which makes it, among others, possible to manipulate aqueous droplets and to introduce macroscopic bioanalytical protocols into microfluidic systems.


Ulrike Lehmann was born in Rostock, Germany, in 1978. She received her Diploma in Electrical Engineering (Dipl.-Ing.) with a specialization on Microsystem- and Device-Engineering from the TU Chemnitz, Germany, in 2003. She subsequently joined the Institute of Microelectronics and Microsystems at the Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland, as a research and teaching assistant. In 2008 she obtained her PhD for her work on Lab-on-a-Chip systems based on the manipulation of magnetic microparticles.



Keywords: Lab-on-a-Chip, Magnetic Microparticles, Microfluidics, Droplet Manipulation, Bioanalysis, Optical Detection, Single Photon Avalanche Diode (SPAD).


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