Flexible microreactor system for chemical research at moderate temperatures
Miniaturization is fast gaining attention in chemical processes that are conventionally carried out on a lab-scale or larger. Major progress and landmarks has been made during the last five years. A m...
Active silicon support for DNA diagnostics
Heated liquid cavities have been studied. Microlitre scale liquid cavities were etched to the surface of a silicon wafer. Liquid cavities were sealed with a glass cover. Integration of active componen...
Magnetically driven assembly of superparamagnetic colloidal particles
Proc. SPIE, Vol. 4982, 302 (2003);
doi:10.1117/12.478161
Online Publication Date: 30 June 2003
Conference Date: Monday 27 January 2003
Conference Location: San Jose, CA, USA
Conference Title: Microfluidics, BioMEMS, and Medical Microsystems
Conference Chairs: Holger Becker, Peter Woias
Thinferromagnetic film patterned into isolated islands is used to directassembly of superparamagnetic colloidal particles into two-dimensional arrays. Ferromagnetic islands positioned under a template of micro-wells are shownto promote highly regular 2D arrays, while external uniform magneticfield is used to bias the particles to attract orrepel from the exposed end of the ferromagnetic islands. A theoretical analysis on the interactions between superparamagnetic colloidal particleswith the template and external uniform magnetic fields is alsopresented.
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