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Visar resultat 16 - 20 av 39 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. Colloidal synthesis of metal nanoparticles

    Författare :Anna Pekkari; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; inline quality control; palladium; gold; stabilizers; NO2 reduction; core-shell; colloidal synthesis; copper; reduction kinetics; platinum; nanoparticles; segmented flow; nanocube; flow chemistry;

    Sammanfattning : Metal nanoparticles (NPs) are central in a wide range of industrial areas including catalytic and biomedical applications. Due to their interesting physical properties, the demand of these precious materials is steadily increasing, which has created a need for the development of effective and high-performing NPs. LÄS MER

  3. 17. New Insights Regarding the Efficient Design of Photon Upconversion Systems

    Författare :Axel Olesund; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; fluorescence; solar energy conversion; semiconductor nanocrystals; intramolecular TTA; photon upconversion; photochemistry; triplet-triplet annihilation;

    Sammanfattning : The transition from fossil fuels to renewable energy sources is arguably the most important weapon in combating global climate change. Existing solar technologies could be significantly improved using unconventional ways of manipulating the solar spectrum. LÄS MER

  4. 18. Methodological aspects and usefulness of Quantitative Sensory Testing in early small fiber polyneuropathy : a clinical study in Swedish hereditary transthyretin amyloidosis patients

    Författare :Victoria Heldestad; Erik Nordh; Ole Suhr; Göran Solders; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Amyloidosis; cold thresholds; heart rate variability; method-of-limits; quantitative sensory testing; transthyretine; warm thresholds; Clinical Neurophysiology; klinisk neurofysiologi;

    Sammanfattning : Generalised polyneuropathy (PNP) is a common cause to neurological impairment, and may be an early symptom of a severe systemic disease. One such illness is hereditary transthyretin (TTR) amyloidosis (ATTR), a progressive fatal disorder caused by a mutation on the TTR gene. LÄS MER

  5. 19. Dye/Semiconductor Interfaces : An Electron Spectroscopic Study of Systems for Solar Cell and Display Applications

    Författare :Karin Westermark; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Dye-sensitized; nanostructured; electron spectroscopy; Fysik; Physics; Fysik; fysik; Physics;

    Sammanfattning : The properties relevant for electron transfer processes between dye molecules and semiconductor substrates, titanium dioxide (TiO2) and zinc oxide (ZnO), have been studied by means of photoelectron spectroscopy, PES, near edge X-ray absorption spectroscopy, NEXAFS, and resonant photoemission, RPES.For dye-sensitized solar cells, the currently used dyes are ruthenium polypyridine complexes adsorbed to the semiconductor via carboxyl linker groups. LÄS MER

  7. 20. Synthesis of functional derivatives of [B12H12]2- anion for boron neutron capture therapy, radiodiagnostics and radioimmunotherapy

    Författare :Igor Sivaev; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; organisk kemi; Organic Chemistry;

    Sammanfattning : Functional derivatives of dodecahydro-closo-dodecaborate anion [B12H12]2- are potential candidates for medical application in boron neutron capture therapy for cancer and as linkers for the introduction of radiohalogen label into biomolecules for radioimmunodiagnostics and radioimmunotherapy.In this study, new approaches for the synthesis of functional derivatives of the closo-dodecaborate anion were developed and a series of novel functional derivatives were prepared. LÄS MER