Search for dissertations about: "porphyrins"
Showing result 16 - 20 of 37 swedish dissertations containing the word porphyrins.
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16. Modulation of Molecular Properties : Host–Guest Interactions for Structural Analysis and Chemical Reactions
Abstract : This thesis concerns the construction, use and modulation of various host–guest systems, from small bispidines for binding of inorganic ions to bisporphyrin clips for supramolecular systems.Small flexible molecules undergo fast conformational movements when in solution. READ MORE
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17. Porphyrins and phototherapy of oral bacteria
Abstract : In the mid-1990s researchers became interesting in blue light-based therapies using light- emitting diodes (LED) light. Blue light therapy has been successfully used in treatment of acne, as well as shown wound healing effects. It has also shown significant antibacterial effects, especially on black-pigmented bacteria. READ MORE
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18. Dendron decorated chromophores for optical power limiting applications
Abstract : The need for protection of eyes and electro-optic sensors from powerful lasers has increased the need for new and better optical power limiting (OPL) materials that can protect against laser light. In this study the synthesis and characterization of dendron-coated OPL chromophores (porphyrins, thiophenes, and platinum(II) acetylides) are discussed. READ MORE
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19. Synthesis of Covalently Linked Diporphyrins: Model Compounds for Intramolecular Energy and Electron Transfer
Abstract : Three series of donor-bridge-acceptor compounds have been synthesized to probe the influence of various bridge chromophores on energy and electron transfer. The donor-bridge-acceptor compounds in each series comprise two different porphyrins, acting as donor and acceptor, covalently linked by bridge chromophores. READ MORE
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20. Tuning electron transfer reactions by selective excitation in porphyrin-acceptor assemblies
Abstract : This thesis concerns electron transfer reactions from different excited states in porphyrins, and the effect of changing the energy of the link connecting the donor and acceptor. Photoinduced electron transfer, and subsequent processes were studied using ultrashort laser pulses and nanosecond laser flash photolysis. READ MORE