Search for dissertations about: "porphyrins"
Showing result 11 - 15 of 37 swedish dissertations containing the word porphyrins.
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11. Electronic and Vibrational Coherence in Photosynthetic and Model Systems
Abstract : Ultrafast optical response and excitation energy dynamics in light harvesting pigment-protein complexes and in a few model systems have been studied both experimentally and theoretically. Femtosecond light pulses were employed to excite the system and monitor the subsequent time evolution of the transient absorption kinetics and anisotropy. READ MORE
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12. Photon Upconversion through Triplet-Triplet Annihilation: Towards Higher Efficiency and Solid State Applications
Abstract : 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. READ MORE
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13. Enzymatic metal-chelation by porphyrins
Abstract : This thesis deals with the structure and function of two different enzymes, ferrochelatase and magnesium chelatase, that catalyse similar reactions. When this work started, a three-dimensional model of ferrochelatase existed. Much was known about the enzyme, but some details remained unclear. READ MORE
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14. Photdynamic therapy for treatment of Acne Vulgaris in clinical studies; dose response and mode of action
Abstract : This thesis deals with the use of photodynamic therapy (PDT) for treatment of Acne Vulgaris. Acne Vulgaris is one of the most common skin disorders. Conventional treatments target the pathogenic factors and include a variety of topical and oral medications such as antibiotics. READ MORE
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15. Synthesis of phenylethynyl-bridged diporphyrins : new modifications to the Sonogashira reaction
Abstract : .... READ MORE