Microfluidic Separation System for Magnetic Beads

Lab-on-a-chip technologies and the μTAS have gained importance in recent years. The integration of all functions and components needed for the analysis of a sample in a microfluidic system has to be achieved. Magnetic materials are widely used in these systems for various applications such as magnetohydrodynamic pumps and valves. Especially, in terms of separation and detection of biological samples magnetic materials are suitable. In this work a microfluidic separation system for magnetic beads was experimentally realized according to theoretical simulations. The manipulation of magnetic beads is achieved by magnetic gradient fields resulting from conducting lines near the microfluidic channel. Experimental and calculation results are compared with each other.