Switchable cell trapping using superparamagnetic beads

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Ni{sub 81}Fe{sub 19} microwires are investigated as the basis of a switchable template for positioning magnetically-labeled neural Schwann cells. Magnetic transmission X-ray microscopy and micromagnetic modeling show that magnetic domain walls can be created or removed in zigzagged structures by an applied magnetic field. Schwann cells containing superparamagnetic beads are trapped by the field emanating from the domain walls. The design allows Schwann cells to be organized on a surface to form a connected network and then released from the surface if required. As aligned Schwann cells can guide nerve regeneration, this technique is of value for developing glial-neuronal co-culture ... continued below

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Bryan, M. T.; Smith, K. H.; Real, M. E.; Bashir, M. A.; Fry, P. W.; Fischer, P. et al. April 30, 2010.

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Ni{sub 81}Fe{sub 19} microwires are investigated as the basis of a switchable template for positioning magnetically-labeled neural Schwann cells. Magnetic transmission X-ray microscopy and micromagnetic modeling show that magnetic domain walls can be created or removed in zigzagged structures by an applied magnetic field. Schwann cells containing superparamagnetic beads are trapped by the field emanating from the domain walls. The design allows Schwann cells to be organized on a surface to form a connected network and then released from the surface if required. As aligned Schwann cells can guide nerve regeneration, this technique is of value for developing glial-neuronal co-culture models in the future treatment of peripheral nerve injuries.

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  • Journal Name: IEEE Magnetics Letters

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  • Report No.: LBNL-3180E
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1109/LMAG.2010.2046143 | External Link
  • Office of Scientific & Technical Information Report Number: 983043
  • Archival Resource Key: ark:/67531/metadc1014457

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  • April 30, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 17, 2017, 7 p.m.

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Bryan, M. T.; Smith, K. H.; Real, M. E.; Bashir, M. A.; Fry, P. W.; Fischer, P. et al. Switchable cell trapping using superparamagnetic beads, article, April 30, 2010; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1014457/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.