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Department of Physics and Astronomy
University of Mississippi

Events

Event Information:

  • Tue
    04
    Feb
    2020

    Colloquium: Patterned Nanoscale Magnetic Traps and Applications for Single- and Few-Molecule Experiments

    4:00 pmLewis Hall 101

    Gregory Vieira
    Department of Physics
    Rhodes College

    Patterned Nanoscale Magnetic Traps and Applications for Single- and Few-Molecule Experiments

    Directed and controllable manipulation of fluid-borne entities is important for a wide range of applications such as cellular diagnostics and nano-scale assembly. We present a multiplexed mechanism for manipulating microscopic magnetic particles in fluid on arrays of patterned magnetic disks or wires. This mechanism allows for probing and manipulation of micro- and nano-scale objects and biological entities in near-native environments, offers the flexibility to apply forces to large numbers of objects simultaneously, and is remotely tunable by application of weak magnetic fields. We illustrate several applications of this technique in the regime of single or few molecules: toward single biomolecule detection, single cell nanoinjections, and remote control of microtubules gliding on kinesin assays.