Magnetic filtration of phase separating ferrofluids: from basic concepts to microfluidic device


In this work, we briefly review magnetic separation of ferrofluids composed of large magnetic particles (60 nm of the average size) possessing an induced dipole moment. Such ferrofluids exhibit field-induced phase separation at relatively low particle concentrations (∼0.8%vol.) and magnetic fields (∼10 kA/m). Particle aggregates appearing during the phase… (More)