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Showing 1 to 12 of 12 for “"Radical Pair"”.
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Approaching magnetic field effects in biology using the radical pair mechanism
… biology (see Chapter 1 for examples) using the radical pair mechanism, a quantum mechanical mechanism known for over 20 years that lets the yields of certain radical pair reactions depend on the applied magnetic field [1, 2, 3]. This goal seems reasonable considering the known roles of many …
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Taming Quantum Noise in the Open: Spin Biophysics under Optimal Control
The quantum control of spin-correlated radical pairs (SCRPs) holds promise for the targeted manipulation of magnetic field effects (MFEs), with potential applications ranging from the design of noise-resilient quantum information processors to genetically encodable quantum sensors. However, …
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Quantum Coherence and Entanglement in Open Quantum Systems
… this thesis falls into two parts: avian compass–radical pair mechanism and photosynthesis–enhancing photocell efficiency via coherence.</p> <p>The radical pair mechanism used to explain the avian compass is studied in the first part. It is demonstrated that Cryptochrome is a suitable candidate of …
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Investigation of Factors Influencing Recombination Versus Disproportionation of Complex Radicals Formed by C-N Homolysis of Breslow Type Intermediates and Related Compounds
… It is unclear what causes these radicals to undergo recombination or disproportionation. Density Functional Theory (DFT) calculations do not provide a transition state for the recombination and disproportionation processes and therefore they cannot be used to predict the favorable …
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The Mouse Magnetic Compass
… mechanisms used to sense the magnetic field, the radical pair mechanism (RPM) and the magnetite based mechanism (MBM). C57BL/6 laboratory mice can rely on directional information from the magnetic field to position their nests and to solve a water maze task. The primary objective of this research …
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Magnetic Tools for Neural Interfacing
… magnetic field. We explore if its underlying radical pair mechanism could be used for magnetic neurostimulation. The second project employs magnetic nanotransducers for neurostimulation. These functionalized, biocompatible magnetic nanoparticles translate magnetic fields to heat or mechanical …
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Behavioral Investigation of the Light-Dependent Magnetoreception Mechanism of Drosophila melanogaster
… and is proposed to involve a photo-induced radical pair mechanism (RPM). My dissertation research consisted of characterizing a magnetic compass in a model species, Drosophila melanogaster. Preliminary experiments were carried out with adult flies, however, due to the behavioral complexity …
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Towards reverse engineering of Photosystem II: Synergistic Computational and Experimental Approaches
… The hypervalent phosphorous porphyrin forms a radical pair that can be observed using Transient Electron Paramagnetic Resonance (TR-EPR). Finally, the results from this thesis are discussed in light of the development of solar fuel producing systems.
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Triplet Exciton Management in Organic Electronic Devices
… found for back transfer from a spin-correlated radical pair state being the dominant mode of intersystem crossing. With increased film concentration the signal becomes dominated by free polarons, suggesting that charge separation may be a mechanism of luminescence quenching at high …
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Spontaneous directional preferences in taxonomically and ecologically distinct organisms: examining cues and underlying mechanisms
… with a mechanism involving a light-dependent radical pair mechanism. Findings from the turtle experiments also suggest that the Earth's magnetic field plays an important role in encoding spatial information in novel surroundings, and may help to organize multiple locales into a 'mental map' of …
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Characterizing the Role of Magnetic Cues Underlying Spatial Behavior
In the 50+ years since the discovery of magnetic compass orientation by migratory songbirds, evidence for the use of magnetic cues has been obtained for a range of taxonomic groups, including several classes of vertebrate and invertebrate taxa. Surprisingly, however, the biophysical mechanisms and …
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Dynamic imaging of magnetic bioeffects in cells using two-channel two-photon autofluorescence intensity and lifetime microscopy
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01