Search for dissertations about: "neural implants"

Showing result 1 - 5 of 10 swedish dissertations containing the words neural implants.

  2. 1. Merging electronics and the brain - towards a fully biocompatible neural interface

    Author : Gustav Lind; Neurofysiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; neural interface; neural implants; BMI; tissue reactions; biocompatibility; rat; astrocytes; microglia;

    Abstract : Techniques for interfacing the nervous system using chronically implanted electrodes are turning into invaluable tools for neurophysiological research and treatment of neurological disorders. These methods have been developed and refined over the last decades. READ MORE

  4. 2. Silicon neural interfaces -Design and biomedical aspects-

    Author : Lars Wallman; Avdelningen för Biomedicinsk teknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektronik och elektroteknik; Electronics and Electrical technology; pn-etch stop; biocompatibility; neural recordings; porous silicon; silicon; neural interface; sieve electrode; General biomedical sciences; Biomedicinska vetenskaper allmänt ;

    Abstract : This thesis covers the development of a silicon neural interface, with focus on silicon sieve electrode fabrication, design, nerve regeneration, signal recording and biocompatibility. A study of how the via hole size and transparency of the perforated sieve membrane influences the nerve regeneration is presented together with a study on soft tissue responses to planar and porous silicon. READ MORE

  5. 3. Strategies in Cochlear Nerve Regeneration, Guidance and Protection : Prospects for Future Cochlear Implants

    Author : Fredrik Edin; Helge Rask-Andersen; Peetra Magnusson; Maoli Duan; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Human vestibular nerve; Scarpa s ganglion; Stem cells; Nanoparticles; Nanocrystalline diamond; Oto-Rhino-Laryngology; Oto-rhino-laryngologi; Medical Science; Medicinsk vetenskap;

    Abstract : Today, it is possible to restore hearing in congenitally deaf children and severely hearing-impaired adults through cochlear implants (CIs). A CI consists of an external sound processor that provides acoustically induced signals to an internal receiver. READ MORE

  6. 4. Nanoparticle-based drug delivery systems for neural interfaces - a novel approach for improved biocompatibility

    Author : Alexander Dontsios Holmkvist; Neurofysiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Neural interfaces; brain damage injury; Minocycline; Gelatin; Nanoparticles; Drug-delivery systems; Biocompatibility; Tissue responses; immunohistochemistry IHC ; Poly D; L-lactic-co-glycolic acid PLGA ; Hydrophobic ion paring; Emulsification-solvent-diffusion method; Drug release; Microglia activation;

    Abstract : The overall purpose of this thesis was to reduce brain tissue responses around implanted microelectrodes using a pharmacological strategy. One of the main aims was to develop and evaluate drug delivery systems that allow local administration of anti-inflammatory pharmaceutics. READ MORE

  7. 5. X-ray and neutron μCT of biomedical samples: from image acquisition to quantification

    Author : Niccoló Peruzzi; Lund Medicinsk strålningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; x-ray imaging; neutron imaging; μCT; synchrotron radiation; x-ray phase-contrast; nanoholotomography; x-ray elemental mapping; biomedical applications; virtual histology; biodegradable implants; Mg-alloys; enteric nervous system; peripheral neuropathy; gastroenteric dysmotility; Fysicumarkivet A:2021:Peruzzi;

    Abstract : Even though the validity of x-ray computed tomography in the analysis of biomedical samples is nowadays undisputed, the more recent imaging techniques and more advanced instruments (such as synchrotrons) are still relatively unknown to many medical doctors that could benefit from them.The doctoral work presented in this thesis joins a collective effort from the imaging community to demonstrate potential applications of advanced x-ray and neutron imaging methods to preclinical medical research, with the hope of contributing to reach a “critical mass” in the medical community and in the public opinion as well. READ MORE