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.