Resultados globales: 4 registros encontrados en 0.02 segundos.
Artículos, Encontrados 4 registros
Artículos Encontrados 4 registros  
1.
14 p, 836.7 KB Physically consistent scar tissue dynamics from scattered set of data : a novel computational approach to avoid the onset of the runge phenomenon / Sergi, Pier Nicola (Sant'Anna School of Advanced Studies. The BioRobotics Institute and Department of Excellence in Robotics and Artificial Intelligence) ; de la Oliva, Natalia (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Del Valle, Jaume (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Navarro, X. (Xavier) (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Micera, Silvestro (Translational Neural Engineering Laboratory. Ecole Polytechnique Federale de Laussane)
The foreign body reaction is a complex biological process leading to the insulation of implanted artificial materials through a capsule of scar tissue. In particular, in chronic implanta-tions of neural electrodes, the prediction of the scar tissue evolution is crucial to assess the implant reliability over time. [...]
2021 - 10.3390/app11188568
Applied sciences (Basel), Vol. 11 Num. 18 (september 2021) , p. 8568  
2.
36 p, 1.9 MB Time course study of long-term biocompatibility and foreign body reaction to intraneural polyimide-based implants / de la Oliva, Natalia (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Navarro, X. (Xavier) (Xavier) (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Del Valle, Jaume (Institut Català de Nanociència i Nanotecnologia)
The foreign body reaction (FBR) against an implanted device is characterized by the formation of a fibrotic tissue around the implant. In the case of interfaces for peripheral nerves, used to stimulate specific group of axons and to record different nerve signals, the FBR induces a matrix deposition around the implant creating a physical separation between nerve fibers and the interface that may reduce its functionality over time. [...]
2018 - 10.1002/jbm.a.36274
Journal of biomedical materials research : Part A, Vol. 106, Issue 3 (March 2018) , p. 746-757  
3.
26 p, 1.4 MB Dexamethasone Reduces the Foreign Body Reaction to Intraneural Electrode Implants in the Peripheral Nerve of the Rat / de la Oliva, Natalia (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Navarro, X. (Xavier) (Xavier) (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Del Valle, Jaume (Institut Català de Nanociència i Nanotecnologia)
Intraneural electrodes must be in intimate contact with nerve fibers to have a proper function, but this interface is compromised due to the foreign body reaction (FBR). The FBR is characterized by a first inflammatory phase followed by a second anti-inflammatory and fibrotic phase, which results in the formation of a tissue capsule around the implant, causing physical separation between the active sites of the electrode and the nerve fibers. [...]
2018 - 10.1002/ar.23920
The anatomical record, Vol. 301, Issue 10 (October 2018) , p. 1722-1733  
4.
9 p, 973.4 KB Long-term functionality of transversal intraneural electrodes is improved by dexamethasone treatment / de la Oliva, Natalia (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Del Valle, Jaume (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Delgado Martínez, Ignacio (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Mueller, Matthias (Albert Ludwig University Freiburg. Laboratory for Biomedical Microtechnology) ; Stieglitz, Thomas (Albert Ludwig University Freiburg. Laboratory for Biomedical Microtechnology) ; Navarro, X. (Xavier) (Xavier) (Universitat Autònoma de Barcelona. Institut de Neurociències) ; Institut Català de Nanociència i Nanotecnologia (ICN2)
Neuroprostheses aimed to restore lost functions after a limb amputation are based on the interaction with the nervous system by means of neural interfaces. Among the different designs, intraneural electrodes implanted in peripheral nerves represent a good strategy to stimulate nerve fibers to send sensory feedback and to record nerve signals to control the prosthetic limb. [...]
2019 - 10.1109/TNSRE.2019.2897256
IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2019  

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