Sökning: "implantable biomedical devices"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden implantable biomedical devices.

  1. 1. Expanding the versatility and functionality of iontronic devices

    Författare :Dennis Cherian; Magnus Berggren; Daniel T Simon; Klas Tybrandt; Alon Gorodetsky; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Biological systems rarely use electrons as signal regulators, most of the transport and communication in these system utilize ions. The discovery of conjugated polymers and polyelectrolytes and their unique properties of mixed ionic electronic properties opened the possibility of using these in the domain of bioelectronics, which paved the way for the field of organic bioelectronics. LÄS MER

  3. 2. Direct electron transfer based biofuel cells : operating in vitro and in vivo

    Författare :Magnus Falk; Malmö högskola; []
    Nyckelord :biofuel cell; direct electron transfer; enzymes; gold nanoparticles; implantable biomedical devices;

    Sammanfattning : I vår moderna värd är vi väldigt beroende av elektrisk energi som vi använder för det mesta i får vardag: för att lysa upp våra hus, generera värme, driva våra datorer och mobiltelefoner och mycket mer. Produktion av elektrisk energi har dock ofta en negativ på-verkan på vår miljö. LÄS MER

  4. 3. Studies On Design of Near-Field Wireless-Powered Biphase Implantable Stimulators

    Författare :Yonatan Habteslassie Kifle; Jacob Wikner; Atila Alvandpour; Sebastian Bader; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Portable and implantable electronics are becoming increasingly important in the healthcare sector. One of the challenges is to guarantee stable systems for longer periods of time. If we consider applications such as electrical nerve stimulation or implanted ion pumps, the requirements for, e.g. LÄS MER

  5. 4. Low-Power Delta-Sigma Modulators for Medical Applications

    Författare :Ali Fazli Yeknami; Atila Alvandpour; Martin Anderson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Biomedical electronics has gained significant attention in healthcare. A general biomedical device comprises energy source, analog-to-digital conversion (ADC), digital signal processing, and communication subsystem, each of which must be designed for minimum energy consumption to adhere to the stringent energy constraint. LÄS MER

  7. 5. Controlled axonal outgrowth and cell reactions to nanostructures

    Författare :Fredrik Johansson; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Contact guidance; neuron; axon; fibroblast; macrophage; polymethylmethacrylate; porous silicon; nanowire; magnetic; immunoresponse; nanoimprint lithography; haptotaxis;

    Sammanfattning : The interface between living cells and artificial surfaces are highly relevant for biomedical applications such as implants and organized cell growth for tissue reconstruction as well as for basic science purposes. In the present thesis, we have studied axonal guidance on various nano-patterned surfaces such as polymethyl-meth-acrylate, porous silicon and on magnetically aligned Ni nanowires. LÄS MER