Our capstone project focuses on improving Magnetic Particle Imaging (MPI) by addressing limitations in nanoparticle tracer quality. Current tracer synthesis produces inconsistent particles that reduce imaging resolution, preventing clinical-grade performance. To solve this, we developed MagStick, a geometry-controlled magnetic purification device that selectively isolates high-performance nanoparticles, followed by a silica encapsulation process that stabilizes and optimizes their structure. Together, this forms an automated purification and coating pipeline that improves tracer consistency and achieves approximately a twofold increase in imaging resolution compared to existing methods.