Figure 1

The sequence temperature controlled microfluidic reactor process for Co₅Sm nanoparticle synthesis. The microfluidic reactor, fabricated by UV-LIGA process and sealed by semi-solid sealing process, is shown as the optical image in the center of the figure. The reactor consists of three regions: the mixing and reaction area from the inlets of 1 and 2 to Y mixers connected with channels shrinking from 200 to 30 μm, the nucleation and growth area with channel width of 60 μm and length of ~30 cm, and the rapid cold quenching area with the cold quenching solution delivered at the quenching solution inlet. The quenching solution mixes with the nanoparticle solution at Y mixer 2. The resulting mixture flows through the quenching channel (width of 120 μm and length of ~15 cm)