Sökning: "fluorescence diagnostics"

Visar resultat 1 - 5 av 118 avhandlingar innehållade orden fluorescence diagnostics.

  1. 1. Towards Undistorted Fluorescence for Tissue Diagnostics and Therapy Monitoring

    Författare :Haiyan Xie; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; upconversion; upconverting nanoparticles; fluorescence-guided-surgery; fluorescence diagnostics; photodynamic therapy; multi-spectral imaging; spectroscopy; biomedical optics; fluorescence; Fysicumarkivet A:2014:Xie;

    Sammanfattning : Fluorescence techniques for applications in tissue diagnostics and therapy monitoring were investigated and developed in the work presented in this thesis. The aim was to develop fluorescence diagnostics for the detection of malignant tumors and better delimitation of the tumor margins, using the enhanced contrast in fluorescence between tumor and surrounding healthy tissue. LÄS MER

  3. 2. Centrifugal microfluidics-based point of care diagnostics at resource limited settings

    Författare :Ahmad Saleem Akhtar; Aman Russom; Ines Fernandes Pinto; Nicole Pamme; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; microfluidics; centrifugal microfluidics; point-of-care; low-cost; diagnostics; agarose beads; immunoassays; colorimetry; fluorescence; cytokines; nucleic acid amplification; isothermal amplification; COVID-19; portable; smartphone; resource limited settings.; Biotechnology; Bioteknologi;

    Sammanfattning : Advancements in medical diagnostics have allowed us to understand the underlying mechanism and treat the root cause for many diseases which had been causing morbidity and mortality up until this point in human history. Furthermore, many of the standard diagnostic procedures have now been transformed to provide answers at or near the point-of-care. LÄS MER

  4. 3. Optical spectroscopy and fluorescence imaging for cancer diagnostics

    Författare :Pontus Svenmarker; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biomedical optics; Diffuse-reflection spectroscopy; Upconverting nanoparticles; Inverse problem; Fluorescence; Tomography; Imaging; Scattering media; Photon migration; Fysicumarkivet A:2012:Svenmarker;

    Sammanfattning : This work presents optical methods for diagnosing cancer. A complementary method for diagnosing eye cancer was investigated using a technique developed within this work named transscleral optical spectroscopy (TOS). LÄS MER

  5. 4. Advancing isothermal nucleic acid amplification tests : Towards democratization of diagnostics

    Författare :Felix Neumann; Mats Nilsson; Paul Yager; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; molecular diagnostics; infectious diseases; point-of-care; digital quantification; fluorescence detection; rolling circle amplification; padlock probes; microfluidic enrichment; Biochemistry; biokemi;

    Sammanfattning : Modern healthcare is the result of scientific advancement across disciplines and has enabled us to understand the rationale behind many diseases and how to treat or cure them; but still a myriad of unanswered questions remains. Especially infectious diseases play an important role in healthcare as they pose a constant threat for global health and well-being. LÄS MER

  7. 5. Development and application of photofragmentation laser-induced fluorescence for visualization of hydrogen peroxides

    Författare :Olof Johansson; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Flame diagnostics; Fluorescence lifetime imaging; Hydrogen peroxide; Laser diagnostics; Laser-induced fluorescence; Photofragmentation;

    Sammanfattning : The work presented in this thesis is mainly motivated by the need for an optical diagnostic technique which can be used to visualize hydrogen peroxide (H2O2) in its gas phase. Due to the lack of bound electronic states, H2O2 cannot be detected using laser-induced fluorescence based on electronic excitation. LÄS MER