In this work sensing mechanism for nanomagnetic particles (nano size magnetic beads) bounded with protein complex has been studied. The methodology employed involves formation of antibody-protein complex, similar to the one formed in sandwiched ELISA (Enzyme Linked Immunosorbent Assay), which is bounded to super paramagnetic particle instead of enzyme to detect the presence of protein molecule. Hall's sensor was fabricated using 0.35 m BioMEMS TSMC technology which senses the magnetic field from the beads. The investigation covers Hall's effect simulations, magneto static analysis of forces on nano magnetic beads, mechanical modeling of bead-protein complex and discussion on fabrication of Hall's Sensor. The design also shows the inductive coil on the top the Hall's sensor that is used to magnetize the beads.
|Publication status||Published - Jul 2012|
|Event|| IEEE-Asia Pacific Conference on Transducers APCOT - Nanjing, China|
Duration: 10 Jul 2012 → …
|Conference||IEEE-Asia Pacific Conference on Transducers APCOT|
|Period||10/07/12 → …|