Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"light harvesting antenna"”.
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Regulation of the chloroplast light harvesting antenna by plastoquinone redox: Modulation of chlorophyll metabolism and thylakoid complex organization
… mechanisms acting to dissipate excess absorbed light energy, and of photodamage to photosystem II due to the limitations of those mechanisms. The efficiency of photosynthetic light use, i.e., both the amount of light energy absorbed and the ability to use or dissipate it effectively, is …
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Biologically engineering nanostructures to maximize energy, electron, and ion transport
… utilization. Artificial photosystems include light-harvesting antenna complexes and oxygen-evolving photocatalytic systems. In particular, a solid collaboration with Seth Lloyd's theory group inspires me to design a quantum light-harvesting antenna complex. The genetically engineered …
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Ultrafast linear and non-linear spectroscopy : from biological light-receptors to artificial light-harvesting systems
… of biological photoreceptors and address the light-induced excited-state processes in a particular molecular device that serves as a - structurally - very simple light-harvesting antenna and potentially as a catalysis-switch for the production of hydrogen in solution. The combination of …
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Excitation evolution and self-regulation ability of photosynthetic light-harvesting systems /
… excitation energy transfer in photosynthetic light-harvesting systems is studied together with the self-regulatory molecular mechanisms utilized by plants to quickly adopt to the varying environment conditions. These mechanisms, known as non-photochemical quenching, allow plants to efficiently …
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Sužadinimo evoliucija ir savireguliacijos geba fotosintetinėse šviesą surenkančiose sistemose /
… excitation energy transfer in photosynthetic light-harvesting systems is studied together with the self-regulatory molecular mechanisms utilized by plants to quickly adopt to the varying environment conditions. These mechanisms, known as non-photochemical quenching, allow plants to efficiently …
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DNA Origami Structures for Artificial Light-Harvesting and Optical Voltage Sensing
… we apply DNA nanotechnology for developing novel light-harvesting and optical voltage sensing nano-devices. We use the programmable positioning of dye molecules on a DNA origami plate as a mimic of a light-harvesting antenna complex required for photosynthesis. Such a structure allows us to …
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Studies on the different types of LH2 complexes from the purple non-sulphur photosynthetic bacterium Rhodopseudomonas palustris strain 2.1.6
… as Rhodopseudomonas palustris 2.1.6, produce light harvesting antenna (LH2) with unusual absorption spectra when they are grown under low-light intensities. This ability is often related to the presence of multiple genes encoding the LH2 apoproteins. This thesis describes isolation of pure …
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The Physiological Effects of Phycobilisome Antenna Modification on the Cyanobacterium Synechocystis sp. PCC 6803
… are the large, membrane extrinsic light harvesting antenna of cyanobacteria. They function to absorb light energy and deliver it efficiently to the photosystems, thereby increasing photosynthetic light absorption. Wild type phycobilisomes in the model organism Synechocystis sp. PCC …
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Pigment orientation changes detected by low temperature linear dichroism spectroscopy: cold-hardening transition in phycobilisome-containing organisms
… pigment orientation changes accompanying the light state transition in the cyanobacterium, Synechococcus sp. pee 6301, and cold-hardening in winter rye (Secale cereale L. cv. Puma). Samples were oriented for spectroscopy using the gel squeezing method (Abdourakhmanov et aI., 1979) and brought …
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Nanostructures templated on biological scaffolds for light harvesting, energy transfer, charge transfer, and redox reactions
… store and transfer the generated solar energy. Light-driven water splitting to generate hydrogen has received increasing attention as a means of storing solar energy. However, in order to evolve hydrogen with no energy input beyond sunlight, it is important to develop a stable and efficient …
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Functional analysis of plastid-encoded genes
… but displayed two clear phenotypes, a light-sensitive one, increasing with the light intensity, and a dwarf phenotype under low-light combined with temperatures below 20°C. The ycf9 gene product was exclusively located in PSII core complexes. This localization was based on the isolation …