Formation and manipulation of polyacrylamide spheroids doped with magnetic nanoparticles in microfluidic chip

Nowadays isolation and sorting of biological objects plays an important role in life science and medicine. Magnetic sorting has big opportunities because of its advantages such as sufficient selectivity and bioinerticity. In this work we studied formation and handling of polyacrylamide microparticles doped with magnetic nanoparticles using droplet microfluidics. Using a flow focusing droplet generator magnetic nanoparticles were encapsulated to polyacrylamide droplets which were polymerized inside the device. It was shown that these magnetic droplets could be efficiently sorted by magnetic field in a microfluidic device.