The effect of a static magnetic field on the flow of iron oxide magnetic nanoparticles through glass capillaries

Abstract

lron oxide nanoparticles were developed using Solvolherrnal synthesis and suspended in a physiological fluid consLiluted by erYlhrocytes in a rder to perfarm studies af flow behaviour in glass microchannels. The main purpose af this work was to study lhe influence af different iron oxide nanoparticles and magnetic fields in lhe plasma layer thickness and also the inftuence Df lhe magnelic field in lhe area composed of nanoparticles auracled to the waU af lhe microchannel. The results obtained show lhat nanoparticJes with magnetic characteristics promote the thinning of the plasma layer, in contrast to the behaviour observcd with mmoparticles without magnetic characteristics. It was also observed upon application of magnetic fields with differem intensities, the plasma layer tend to disappear in some areas depending on the type af particles. Moreover, lhe area of nanoparticles attracted to the microchannel wall increases wilh lhe increase of lhe magnetic field intensity