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Cofabrication of Electromagnets and Microfluidic Systems in Poly(dimethylsiloxane)
Author(s) -
Siegel Adam C.,
Shevkoplyas Sergey S.,
Weibel Douglas B.,
Bruzewicz Derek A.,
Martinez Andres W.,
Whitesides George M.
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200602273
Subject(s) - microfluidics , fabrication , electromagnet , nanotechnology , superparamagnetism , channel (broadcasting) , magnet , materials science , electrical engineering , magnetic field , engineering , physics , magnetization , medicine , alternative medicine , pathology , quantum mechanics
Metal in microfluidic channels : The fabrication of electromagnets (solder) with micron‐scale dimensions in poly(dimethylsiloxane) in close proximity (ca. 10‐μm separation) to microfluidic channels is described (see pictures, top view and cross section). The method only has four steps and can be completed in 10 min. By passing an electric current through the magnets, magnetic field gradients are generated inside the microfluidic channels, which can be used to capture and release superparamagnetic beads in the microfluidic channel.