Non-spiral planar microcoils for biomedical applications

Use of planar microcoils is widely accepted for various sensing and actuating applications in diverse engineering fields. In this work, the applications of a non-spiral planar micro coil as electromagnetic MEMS actuator in micro pumps for miniaturized biomedical devices is studied. Microfabrication of non-spiral coils is easier compared to that of a conventional spiral coil. Moreover, non-spiral coils have lesser series resistance compared to spiral micro coils. The range of magnetic field and force produced by non-spiral coils are simulated using COMSOL Multiphysics software and found to be sufficient for various biomedical applications. Therefore non-spiral coils can become a better alternative to the spiral coils being used at present.