Figure 12.
Sheathless microfluidic system with different microchannels. Schematic of the isolation of magnetic particles from diamagnetic particles when a permanent magnet is placed (A) one side 128 or (B) at the top 129 of a T‐shaped channel. C, Mechanisms of sheathless size‐based magnetic isolation of diamagnetic particles in a ferrofluid. 130 D, Structure of the groove and spatial distributions of particles. Magnetic particles migrate to the centerline of the channel, whereas diamagnetic particles are focused onto the sidewalls 132