Magnetic Micro-Manipulation of Biocompatible Droplets

Recently, the application of magnetic particles for targeted drug delivery has received considerable attention. For example, manipulation of magnetic particles coated with drugs or encapsulated inside drug droplets into target tissues via external magnetic field has been studied [1]. Usually, a strong magnetic field on the order Tesla is applied outside human body to generate the needed magnetic forces for effective manipulation of the particles. To improve the efficiency and effectiveness of the targeted drug delivery, it is important to understand how the magnetic particles or aggregates interact with external magnetic fields for a more precise and selective manipulation. To conduct such study, a localized magnetic source with controllable field generation will be necessary.