Sökning: "singlet oxygen energy"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden singlet oxygen energy.

  1. 1. Energy metabolism in skeletal muscle during ischemia and reperfusion. Experimental and clinical aspects

    Författare :Jonas Lundberg; Göteborgs universitet; []
    Nyckelord :energy metabolism; skeletal muscle; ischemia; reperfusion; MRS; hypothermia; singlet oxygen energy.;

    Sammanfattning : Microsurgical operations, using free vascularised transfer of tissues, induce an obligatory period of ischemia followed by reperfusion. The degree of ischemia and reperfusion injury is dependent on the ischemia time. LÄS MER

  3. 2. Improved bioenergetic recovery during experimental ischemia and reperfusion by irradiation

    Författare :Ann Lindgård; Göteborgs universitet; []
    Nyckelord :energy metabolism; skeletal muscle; monocyte; ischemia; reperfusion; NMR; singlet oxygen energy; light; LED;

    Sammanfattning : Prolonged ischemia and reperfusion frequently occur during clinical operations. The bioenergetic status decreases during ischemia and reactive oxygen species (ROS) are formed during reperfusion, which may lead to irreversible tissue injury. LÄS MER

  4. 3. Photon Upconversion through Triplet-Triplet Annihilation: Towards Higher Efficiency and Solid State Applications

    Författare :Damir Dzebo; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; solar energy conversion; triplet-triplet annihilation; energy transfer; fluorescence anisotropy; anti-stokes; photon upconversion; excited state; porphyrins; photochemistry; photophysics; delayed fluorescence; dendrimers; anthracene; oligomers; spectroscopy;

    Sammanfattning : The sun is the only renewable energy source that can accommodate humanity’s energyneeds today and in the foreseeable future. The sunlight reaching the planet’s surfaceis filtrated through the atmosphere, reducing its UV-light intensity in the 300-400 nmrange, which indeed can be harmful to life as we know it in too large doses. LÄS MER

  5. 4. Transient State Fluorescence Microscopy - method development and biological applications : Exploiting the dark states of fluorophores to measure oxygen concentrations, redox state, Förster resonance energy transfer and membrane viscosity

    Författare :Thiemo Spielmann; Jerker Widengren; Karsten König; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Transient States imaging TRAST ; Triplet State imaging; fluorescence microscopy; modulated excitation; triplet state; radical state; trans-cis isomerisation;

    Sammanfattning : Due to their long lifetime, triplet, redox and other transient states of fluorophores are highly sensitive to the micro-environment. Imaging their spatial distribution in biological samples can therefore help answer interesting questions about the metabolism, molecular interactions and dynamics in living cells. LÄS MER

  7. 5. Shining Light on Benzothiadiazoles and Indolines : Photophysical Properties and Cancer Cell Imaging

    Författare :Susanne Doloczki; Christine Dyrager; Andrey Klymchenko; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Sammanfattning : Fluorescent molecules, also called fluorophores, play an important role in life sciences. As crucial tools in fluorescence microscopy, they can be used to study biological processes on a cellular level, which is a fundamental aspect of cancer research. LÄS MER