Sökning: "Diffusion in bone"

Visar resultat 11 - 15 av 15 avhandlingar innehållade orden Diffusion in bone.

  1. 11. Neuropeptides, 'gaseous' messengers and classic transmitters : electrophysiological and histochemical studies on coexistence and interactions in the nervous system

    Författare :Zhi-Qing David Xu; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Dorsal root ganglion; galanin; hippocampus; 5-hydroxytryptamine; locus coeruleus; nerve injury; nitric oxide; noradrenaline.;

    Sammanfattning : The distribution and functional role of neuropeptides were studied, with special reference to galanin (GAL) and the free radical nitric oxide (NO). In developing systems GAL expression was observed already at E14 in trigeminal and dorsal root ganglion (DRG) neurons and at E15 in sensory epithelia in ear, eye and nose, as well as at E19 during bone formation. LÄS MER

  3. 12. Magnetic resonance imaging and advanced imaging assessment of the growth plate in the adolescent and young adult

    Författare :Ola Kvist; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The growth plate is a cartilaginous structure located between the metaphysis and epiphysis in long bones. It is the centre for longitudinal growth. Longitudinal growth has a biphasic pattern with a peak during foetal and early postnatal life and another peak during puberty. LÄS MER

  4. 13. MRI based radiotherapy planning and pulse sequence optimization

    Författare :Jens Sjölund; Hans Knutsson; Mats Andersson; Michael Felsberg; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Radiotherapy plays an increasingly important role in cancer treatment, and medical imaging plays an increasingly important role in radiotherapy. Magnetic resonance imaging (MRI) is poised to be a major component in the development towards more effective radiotherapy treatments with fewer side effects. LÄS MER

  5. 14. Multilayer Structures for Biomaterial Applications : Biomacromolecule-based Coatings

    Författare :Tobias Halthur; Per M. Claesson; Bjørn Stokke; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; multilayer; layer-by-layer deposition; physical chemistry; surface chemistry; adsorption; ellipsometry; QCM-D; DPI; protein adsorption; polypeptides; biomaterials; biosurfaces; amelogenin; solid liquid interface; Surface and colloid chemistry; Yt- och kolloidkemi;

    Sammanfattning : The cellular response to a biomaterial, such as a dental implant, is mainly governed by the surface properties, and can thus be altered by the introduction of a surface coating. In this thesis the buildup of a biomacromolecule-based coating formed by layerby-layer (LbL) deposition of the charged polypeptides poly(L-lysine) (PLL) and poly(L-glutamic acid) (PGA) has been studied. LÄS MER

  7. 15. Mesoporous Implants for Localized Controlled Drug Delivery

    Författare :Johan Karlsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; release kinetics; mesoporous titania; biomineralization; drug delivery; Biomedical implants; osseointegration; osteoporosis drugs; nanotopography; stem cells homing;

    Sammanfattning : The use of bone-anchored implants is today a routine treatment for patients with normal regenerative capacity. However, there is an ongoing development within implant research to improve the osseointegration of implants. LÄS MER