Simulation and fabrication of capillary-driven meander micromixer for short-distance mixing

In this article, the micromixer with the planar design, short mixing distance, long-term high hydrophilic property and with power-free rapid fluid transport functions has been demonstrated compared with conventional syringe pump micormixers. The short-term capillary-driven micromixers with complex mixing structures have proven with large potential with the mixing ability and no power input advantages that it can be use in instant medical examination and medicine fabrication. Here, we have demonstrated the long-term capillary-driven meander micromixer with the planar design, short mixing distance, and rapid fluid transport functions. The contact angle measurement was made for verifying surface property of various materials and both glass and JSR are good candidates. The Glass-JSR-Glass capillary-driven meander micromixer can improve mixing efficiency up to over 95% at only 8 mm short distance.