Results 121 to 130 of about 271,417 (354)

Conducting Polymer Microelectrode Arrays for Simultaneous Electrophysiology and Advanced Brain Imaging

open access: yesAdvanced Functional Materials, EarlyView.
A flexible micro‐electrocorticography array with PEDOT:SS electrodes is shown to be compatible with ultra‐high magnetic field MRI up to 9.4 T. Multimodal brain monitoring is demonstrated by performing simultaneous blood oxygen level‐dependent functional MRI in parallel with electrophysiology.
Sagnik Middya   +7 more
wiley   +1 more source

Branching Law for Axons [PDF]

open access: yesarXiv, 2003
What determines the caliber of axonal branches? We pursue the hypothesis that the axonal caliber has evolved to minimize signal propagation delays, while keeping arbor volume to a minimum. We show that for a general cost function the optimal diameters of mother ($d_0$) and daughter ($d_1$, $d_2$) branches at a bifurcation obey a branching law: $d_{0}^{\
arxiv  

Biomimetic Design of Biocompatible Neural Probes for Deep Brain Signal Monitoring and Stimulation: Super Static Interface for Immune Response‐Enhanced Contact

open access: yesAdvanced Functional Materials, EarlyView.
Ultrathin, flexible neural probes are developed with an innovative, biomimetic design incorporating brain tissue‐compatible materials. The material system employs biomolecule‐based encapsulation agents to mitigate inflammatory responses, as demonstrated through comprehensive in vitro and in vivo studies.
Jeonghwa Jeong   +7 more
wiley   +1 more source

Fluorescent identification of axons, dendrites and soma of neuronal retinal ganglion cells with a genetic marker as a tool for facilitating the study of neurodegeneration

open access: yesFASEB BioAdvances
This study characterizes a fluorescent Slc17a6‐tdTomato neuronal reporter mouse line with strong labeling of axons throughout the optic nerve, of retinal ganglion cell (RGC) soma in the ganglion cell layer (GCL), and of RGC dendrites in the inner ...
Puttipong Sripinun   +8 more
doaj   +1 more source

Mechanical Behavior of Axonal Actin, Spectrin, and Their Periodic Structure: A Brief Review [PDF]

open access: yesarXiv, 2021
Actin and spectrin are important constituents of axonal cytoskeleton. Periodic actin and spectrin structures are found in dendrites, initial segment of axon, and main axon. Actin and spectrin periodicity has been hypothesized to be manipulating the axon stability and mechanical behavior.
arxiv  

Axons of retinal ganglion cells are insulted in the optic nerve early in DBA/2J glaucoma

open access: yesJournal of Cell Biology, 2007
Here, we use a mouse model (DBA/2J) to readdress the location of insult(s) to retinal ganglion cells (RGCs) in glaucoma. We localize an early sign of axon damage to an astrocyte-rich region of the optic nerve just posterior to the retina, analogous to ...
G. Howell   +13 more
semanticscholar   +1 more source

Sugar Codes for Axons? [PDF]

open access: yesNeuron, 2005
Proteoglycans are complex macromolecules with the potential for extraordinary diversity. Several recent studies have demonstrated important roles for heparan sulfate and chondroitin sulfate proteoglycans (HSPGs and CSPGs) in axon pathfinding and have linked HSPGs to specific signaling pathways.
Holt, Christine E, Dickson, Barry J
openaire   +4 more sources

Biologically‐Inspired Melt Electrowriting for the Generation of Highly Biomimetic Functional Myocardium

open access: yesAdvanced Functional Materials, EarlyView.
In this work, melt electrowriting is used to fabricate a 3D printed scaffold design that generates engineered cardiac tissues with in‐plane contraction, mimicking natural myocardium. It is shown that these tissues display advanced maturation and functionality.
Olalla Iglesias‐García   +23 more
wiley   +1 more source

Hyper-viscoelastic 3D response of axons subjected to repeated tensile loads in brain white matter [PDF]

open access: yesarXiv, 2022
A novel finite element method (FEM) is developed to study mechanical response of axons embedded in extra cellular matrix (ECM) when subjected to harmonic uniaxial stretch under purely non-affine kinematic boundary conditions. The proposed modeling approach combines hyper-elastic (such as Ogden model) and time/frequency domain viscoelastic constitutive ...
arxiv  

Topographically specific effects of ELF-1 on retinal axon guidance in vitro and retinal axon mapping in vivo [PDF]

open access: yes, 1996
Peer reviewedPublisher ...
Bergemann   +35 more
core   +1 more source

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