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   Articles with "radical pair" as a keyword



Disruption of Magnetic Compass Orientation in Migratory Birds by Radiofrequency Electromagnetic Fields.

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recommendations! Published in 2017 at "Biophysical journal"

DOI: 10.1016/j.bpj.2017.07.031

Abstract: The radical-pair mechanism has been put forward as the basis of the magnetic compass sense of migratory birds. Some of the strongest supporting evidence has come from behavioral experiments in which birds exposed to weak… read more here.

Keywords: radical pair; magnetic compass; radiofrequency; migratory birds ... See more keywords

Application of spin-correlated radical pair system to liposomal drug-delivery system under exposure to magnetic fields

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recommendations! Published in 2019 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2019.01.099

Abstract: Abstract In this paper, we used anti-cancer flutamide (FM) as a radical pair-forming drug to investigate whether magnetic fields can control a liposomal drug release through differences in the physical properties of biomembranes. Irradiations of… read more here.

Keywords: radical pair; system; pair; drug ... See more keywords

Modulation of reactivity of singlet radical pair in continuous flow: Photo-Fries rearrangement

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recommendations! Published in 2018 at "Journal of Photochemistry and Photobiology A: Chemistry"

DOI: 10.1016/j.jphotochem.2018.06.014

Abstract: Abstract Photo-Fries rearrangement of phenyl benzoate is studied using continuous flow for modulating the reactivity of singlet radical pair by changing the viscosity of the solvent. The effect of flow and proximity of the reactants… read more here.

Keywords: radical pair; fries rearrangement; photo fries; reactivity ... See more keywords

Mechanism of Light Induced Radical Pair Formation in Coenzyme B12-Dependent Ethanolamine Ammonia-Lyase

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recommendations! Published in 2018 at "ACS Catalysis"

DOI: 10.1021/acscatal.8b00120

Abstract: Coenzyme B12 (adenosylcobalamin = AdoCbl)-dependent enzymes catalyze complex molecular transformations by employing radical chemistry. The initial step in the native catalytic cycle, upon substrate binding, involves homolytic cleavage of the Co–C bond of AdoCbl to… read more here.

Keywords: coenzyme b12; radical pair; mechanism; ethanolamine ammonia ... See more keywords

Cooperative Activation of CO2 and Epoxide by a Heterobinuclear Al-Fe Complex via Radical Pair Mechanisms.

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recommendations! Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.1c13108

Abstract: Activation of inert molecules like CO2 is often mediated by cooperative chemistry between two reactive sites within a catalytic assembly, the most common form of which is Lewis acid/base bifunctionality observed in both natural metalloenzymes… read more here.

Keywords: radical pair; cooperative activation; heterobinuclear complex; activation co2 ... See more keywords

Direct Dynamics Trajectories Demonstrate Dynamic Matching and Nonstatistical Radical Pair Intermediates during Fe-Oxo-Mediated C-H Functionalization Reactions.

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recommendations! Published in 2023 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.3c01196

Abstract: The generally proposed mechanism for the reaction between non-heme Fe-oxo complexes and alkane C-H bonds involves a hydrogen atom transfer (HAT) reaction step with a radical pair intermediate that then has competitive radical rebound, dissociation,… read more here.

Keywords: radical pair; dynamics trajectories; pair; direct dynamics ... See more keywords

Spectroscopic Characterization of Radical Pair Photochemistry in Nonmigratory Avian Cryptochromes: Magnetic Field Effects in GgCry4a

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recommendations! Published in 2025 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.4c14037

Abstract: The magnetic compass sensor in night-migratory songbirds is thought to be a flavin-tryptophan radical pair formed by blue-light excitation of the protein cryptochrome-4a (Cry4a) localized in photoreceptor cells in the birds’ retinas. The effects of… read more here.

Keywords: photochemistry; radical pair; protein; pair ... See more keywords

Chemical compass behaviour at microtesla magnetic fields strengthens the radical pair hypothesis of avian magnetoreception

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recommendations! Published in 2019 at "Nature Communications"

DOI: 10.1038/s41467-019-11655-2

Abstract: The fact that many animals, including migratory birds, use the Earth’s magnetic field for orientation and compass-navigation is fascinating and puzzling in equal measure. The physical origin of these phenomena has not yet been fully… read more here.

Keywords: magnetoreception; radical pair; chemical compass; hypothesis ... See more keywords

C-H bond activations by the HO˙/(Salophent-Bu)Co(II) radical pair generated via homolysis of a terminal Co(III)-OH bond.

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recommendations! Published in 2023 at "Chemical communications"

DOI: 10.1039/d3cc00146f

Abstract: The reactive HO˙/(Salophent-Bu)Co(II) radical pair was observed to be generated via homolysis of the terminal Co(III)-OH bond in transient (Salophent-Bu)(L)Co(III)(OH) (L = Py, MeOH) complexes as indicated by UV-Vis and EPR measurements. Based on this… read more here.

Keywords: radical pair; iii; generated via; salophent radical ... See more keywords

Radical pair mechanism and the role of chirality-induced spin selectivity during planaria regeneration

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recommendations! Published in 2024 at "Applied Physics Letters"

DOI: 10.1063/5.0227302

Abstract: Planaria serve as an intriguing model system wherein the effects of electric and magnetic fields on various biochemical pathways during cell morphogenesis can be studied. Recent experimental observations have demonstrated the non-trivial modulation of reactive… read more here.

Keywords: pair; radical pair; mechanism; planaria regeneration ... See more keywords

Magnetic field effects in biology from the perspective of the radical pair mechanism

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recommendations! Published in 2022 at "Journal of the Royal Society Interface"

DOI: 10.1098/rsif.2022.0325

Abstract: Hundreds of studies have found that weak magnetic fields can significantly influence various biological systems. However, the underlying mechanisms behind these phenomena remain elusive. Remarkably, the magnetic energies implicated in these effects are much smaller… read more here.

Keywords: radical pair; field effects; biology; pair mechanism ... See more keywords