Design and Fabrication of Integrated Multianalyte Sensing Platform With Magnetic Micro-Coils

With the recent trends in bio-sensing technology, more attention is being devoted to sensor integration. This paper reports the design and fabrication of magnetically assisted multianalyte sensing platform comprising magnetic micro-coils to trap magnetic beads on the surface of sensing electrodes; integrated sensing electrode array for multianalyte sensing; and the additional micro-coils for removing the unbounded magnetic beads from the sensing electrodes´ surfaces. Prototype device was designed and successfully fabricated using customized fabrication flow. Device´s individual components were tested to ensure repeatability and reproducibility. Sensing platform were additionally tested in order to prove the successful implementation of magnetically assisted manipulation of micro-beads. The results of these tests support the original concept and their summary is presented herein.