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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Schematic A shows the chip layout, with circular nickel pads (blue), which can be magnetized by an external magnet flanked by interdigitated gold electrodes (red). Schematic B shows paramagnetic beads introduced to the chip surface by microfluidics and loaded onto the magnetic pads by magnetic manipulation, facilitating the formation of bead surface tethers via antibody-antigen interactions. Schematic C shows interactions probed by application of sufficient nDEP force to displace non-specifically bound beads, but not specifically bound beads. Schematic D shows how the devices are fabricated. (Image courtesy of Lizhi Cao)