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Träfflista för sökning "WFRF:(Samuelson Lars) ;pers:(Prinz Christelle)"

Sökning: WFRF:(Samuelson Lars) > Prinz Christelle

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  • Suyatin, Dmitry, et al. (författare)
  • Nanowire-Based Electrode for Acute In Vivo Neural Recordings in the Brain
  • 2013
  • Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:2
  • Tidskriftsartikel (refereegranskat)abstract
    • We present an electrode, based on structurally controlled nanowires, as a first step towards developing a useful nanostructured device for neurophysiological measurements in vivo. The sensing part of the electrode is made of a metal film deposited on top of an array of epitaxially grown gallium phosphide nanowires. We achieved the first functional testing of the nanowire-based electrode by performing acute in vivo recordings in the rat cerebral cortex and withstanding multiple brain implantations. Due to the controllable geometry of the nanowires, this type of electrode can be used as a model system for further analysis of the functional properties of nanostructured neuronal interfaces in vivo.
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  • Eriksson Linsmeier, Cecilia, et al. (författare)
  • Nanowire Biocompatibility in the Brain - Looking for a Needle in a 3D Stack.
  • 2009
  • Ingår i: Nano Letters. - : American Chemical Society (ACS). - 1530-6992 .- 1530-6984. ; 9:12, s. 4184-4190
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigated the brain-tissue response to nanowire implantations in the rat striatum after 1, 6, and 12 weeks using immunohistochemistry. The nanowires could be visualized in the scar by confocal microscopy (through the scattered laser light). For the nanowire-implanted animals, there is a significant astrocyte response at week 1 compared to controls. The nanowires are phagocytized by ED1 positive microglia, and some of them are degraded and/or transported away from the brain.
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  • Hällström, Waldemar, et al. (författare)
  • Fifteen-Piconewton Force Detection from Neural Growth Cones Using Nanowire Arrays
  • 2010
  • Ingår i: Nano Letters. - : American Chemical Society (ACS). - 1530-6992 .- 1530-6984. ; 10:3, s. 782-787
  • Tidskriftsartikel (refereegranskat)abstract
    • We used epitaxially grown monodisperse nanowire arrays to measure cellular forces with a spatial resolution of 1 mu m. Nerve cells were cultured on the array and cellular forces were calculated from the displacement of the nanowire tips. The measurements were done in situ on live cells using confocal microscopy, Forces down to 15 pN were measured on neural growth cones, showing that this method can be used to study the Fine details of growth-cone dynamics.
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  • Hällström, Waldemar, et al. (författare)
  • Gallium phosphide nanowires as a substrate for cultured neurons
  • 2007
  • Ingår i: Nano Letters. - : American Chemical Society (ACS). - 1530-6992 .- 1530-6984. ; 7:10, s. 2960-2965
  • Tidskriftsartikel (refereegranskat)abstract
    • Dissociated sensory neurons were cultured on epitaxial gallium phosphide (GaP) nanowires grown vertically from a gallium phosphide surface. Substrates covered by 2.5 mu m long, 50 nm wide nanowires supported cell adhesion and axonal outgrowth. Cell survival was better on nanowire substrates than on planar control substrates. The cells interacted closely with the nanostructures, and cells penetrated by hundreds of wires were observed as well as wire bending due to forces exerted by the cells.
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  • Resultat 1-10 av 26

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