Results 21 to 30 of about 36,700 (277)

Hypomagnetic field effects as a potential avenue for testing the radical pair mechanism in biology

open access: yesFrontiers in Physics, 2023
Near-zero magnetic fields, called hypomagnetic fields, are known to impact biological phenomena, including developmental processes, the circadian system, neuronal and brain activities, DNA methylation, calcium balance in cells, and many more.
Hadi Zadeh-Haghighi   +8 more
doaj   +3 more sources

A Radical Mechanism for Frustrated Lewis Pair Reactivity [PDF]

open access: yesCheM, 2017
Summary The frustrated Lewis pairs (FLPs) derived from t Bu 3 P and E(C 6 F 5 ) 3 (E = B, Al) react with p O 2 C 6 Cl 4 and Ph 3 SnH to give [ t Bu 3 POC 6 Cl 4 OE(C 6 F 5 ) 3 ] (E = B 1 , Al  2 ), [ t Bu 3 PSnPh 3 ][HB(C 6 F 5 ) 3 ] 3 , and [ t Bu 3 PSnPh 3 ][(μ-H)(Al(C 6 F 5 ) 3 ) 2 ] 4 .
Liu Leo Liu, Levy L Cao, Gabriel Menard
exaly   +2 more sources

The Radical Pair Mechanism of Animal Magnetoreception

open access: yes, 2020
Animal magnetoreception is the phenomenon by which some night-migratory birds can make seasonal migrations by utilising a light-dependent response to the Earth’s magnetic field (MF) for directional information. At ~25-65µT, the geomagnetic field is generally considered impotent upon biological molecules [1].
D'Souza, Edeline M   +3 more
openaire   +2 more sources

Magneto-oncology: a radical pair primer [PDF]

open access: yesFrontiers in Oncology
There are few well-established biophysical mechanisms by which external magnetic fields can influence the biochemistry of molecules in living systems. The radical pair mechanism is arguably the most promising.
P. J. Hore
doaj   +2 more sources

HEK293 cell response to static magnetic fields via the radical pair mechanism may explain therapeutic effects of pulsed electromagnetic fields. [PDF]

open access: yesPLoS ONE, 2020
PEMF (Pulsed Electromagnetic Field) stimulation has been used for therapeutic purposes for over 50 years including in the treatment of memory loss, depression, alleviation of pain, bone and wound healing, and treatment of certain cancers.
Marootpong Pooam   +4 more
doaj   +2 more sources

Quantum theory of a potential biological magnetic field sensor: Radical pair mechanism in flavin adenine dinucleotide biradicals [PDF]

open access: yesComputational and Structural Biotechnology Journal
Recent studies in vitro and in vivo suggest that flavin adenine dinucleotide (FAD) on its own might be able to act as a biological magnetic field sensor.
Amirhosein Sotoodehfar   +3 more
doaj   +2 more sources

The radical-pair mechanism as a paradigm for the emerging science of quantum biology [PDF]

open access: yesModern Physics Letters B, 2015
The radical-pair mechanism (RPM) was introduced in the 1960s to explain anomalously large EPR and NMR signals in chemical reactions of organic molecules. It has evolved to the cornerstone of spin chemistry, the study of the effect electron and nuclear spins have on chemical reactions, with the avian magnetic compass mechanism and the photosynthetic ...
I K Kominis
exaly   +3 more sources

The radical pair mechanism and the avian chemical compass: Quantum coherence and entanglement [PDF]

open access: yesInternational Journal of Quantum Chemistry, 2015
We review the spin radical pair mechanism which is a promising explanation of avian navigation. This mechanism is based on the dependence of product yields on (1) the hyperfine interaction involving electron spins and neighboring nuclear spins and (2) the intensity and orientation of the geomagnetic field.
Sabre Kais
exaly   +3 more sources

The radical pair mechanism cannot explain telecommunication frequency effects on reactive oxygen species

open access: yesFrontiers in Quantum Science and Technology
Electromagnetic radiation at telecommunication frequencies has been reported to have biological effects, particularly affecting the production of reactive oxygen species, raising the question of potential mechanisms.
Owaiss Talbi   +8 more
doaj   +3 more sources

Home - About - Disclaimer - Privacy