Sökning: "area-to-volume ratio"

Visar resultat 6 - 10 av 17 avhandlingar innehållade orden area-to-volume ratio.

  1. 6. Miniaturised Bioanalytical Chemistry in Acoustically Levitated Droplets

    Författare :Sabina Santesson; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Analytisk kemi; protein crystallisation; affinity two-phase partitioning; single cell analysis; bioanalytical chemistry; airborne chemistry; levitated droplets; Miniaturisation; acoustic levitation;

    Sammanfattning : Fuelled by the current demands of the biological sciences, there is today a growing interest in microscale analysis. Miniaturisation of analytical instruments has become a long-standing trend. Miniaturisation offers several advantages, including rapid separation times, high performance and throughput, reduced costs, etc. LÄS MER

  3. 7. Flexible and Cellulose-based Organic Electronics

    Författare :Jesper Edberg; Magnus Berggren; Isak Engquist; Leif Nyholm; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic electronics; conductive polymers; nanocellulose; nanofibrillated cellulose; composite materials; paper electronics; flexible electronics;

    Sammanfattning : Organic electronics is the study of organic materials with electronic functionality and the applications of such materials. In the 1970s, the discovery that polymers can be made electrically conductive led to an explosion within this field which has continued to grow year by year. LÄS MER

  4. 8. Chemically Modified Metal Oxide Nanostructures Electrodes for Sensing and Energy Conversion

    Författare :Sami Elhag; Omer Nour; Magnus Willander; Alberta Bonanni; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Metal oxide nanostructures; mixed metal oxide nano-compound; low temperature wet-chemical growth; chemically modified electrode; doping; surfactant; potentiometric sensor; chemical sensor and photo-electrochemical activity;

    Sammanfattning : The goal of this thesis is the development of scalable, low cost synthesis of metal oxide nanostructures based electrodes and to correlate the chemical modifications with their energy conversion performance. Methods in energy conversion in this thesis have focused on two aspects; a potentiometric chemical sensor was used to determine the analytical concentration of some components of the analyte solution such as dopamine, glucose and glutamate molecules. LÄS MER

  5. 9. Device Fabrication and Photosensitizing Role of ZnO Nanostructures in Photodynamic Therapy of Cancer

    Författare :Kishwar Sultana; Magnus Willander; Omer Nour; Arne Rosén; Linköpings universitet; []
    Nyckelord :Zinc oxide nanostructures; light emitting diodes; reactive oxygen species; photosensitizer; cancer cell; photodynamic therapy; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : In nanoscience and nanotechnology, zinc oxide (ZnO) is gaining much research attention due to direct wide band gap (3.3 eV), large exciton binding energy (60 meV), and deep level defects emissions that cover the whole visible range. LÄS MER

  7. 10. Synthesis and Characterization of Nanoprobes for X-Ray Fluorescence Computed Tomography (XFCT) Bio-imaging

    Författare :Yuyang Li; Muhammet Toprak; Hans Hertz; Ender Suvaci; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : X-ray fluorescence computed tomography (XFCT) is an emerging biomedical imaging technique. The KTH-XFCT laboratory system offers a characteristic 24 keV emission line, and high spatial resolution (200 ?m) images. XFCT as a newly emerging modality also requires the exploration and development of suitable contrast agents. LÄS MER