Professor Richard Fair of the Digital Microfluidics Laboratory at Duke University has shown the feasibility of intra-droplet magnetic bead separation.
This method consists of performing separation in droplets with a complex mixture of multiple beads, each having different magnetic contents. It demonstrates an integrated device combining both EWD droplet actuation and intra-droplet magnetic bead manipulation. Their separation function can be operated independently, which provides flexibility when designing operation protocols in many disciplines, encompassing biology, chemistry and chemical engineering.
For more information on this research, please visit http://link.springer.com/article/10.1007%2Fs10404-015-1650-9