Time-Resolved EPR Spectroscopy in the Q-Band Microwave Region. 2. Magnetic Field Effects on CIDEP in Radicals, Biradicals, and Spin-Correlated Radical Pairs*

1993 ◽  
Vol 182 (Part_1_2) ◽  
pp. 63-76 ◽  
Author(s):  
Malcolm D. E. Forbes
Keyword(s):  
Magnetic Field ◽  
Epr Spectroscopy ◽  
Magnetic Field Effects ◽  
Radical Pairs ◽  
Time Resolved ◽  
Microwave Region ◽  
Field Effects

Time-resolved studies of radical pairs

2009 ◽  
Vol 37 (2) ◽  
pp. 358-362 ◽  
Author(s):  
Jonathan R. Woodward ◽  
Timothy J. Foster ◽  
Alex R. Jones ◽  
Adrian T. Salaoru ◽  
Nigel S. Scrutton
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Chemical Reactions ◽  
Radical Pair ◽  
Radical Pair Mechanism ◽  
Magnetic Field Effects ◽  
Radical Pairs ◽  
Time Resolved ◽  
Field Effects ◽  
Field Sensitivity

The effect of magnetic fields on chemical reactions through the RP (radical pair) mechanism is well established, but there are few examples, in the literature, of biological reactions that proceed through RP intermediates and show magnetic field-sensitivity. The present and future relevance of magnetic field effects in biological reactions is discussed.

Radical cations of n-alkanes in irradiated solutions as studied by time-resolved magnetic field effects

2002 ◽  
Vol 100 (9) ◽  
pp. 1379-1384 ◽  
Author(s):  
V. I. BOROVKOV ◽  
V. A. BAGRYANSKY ◽  
I. V. YELETSKIKH ◽  
YU. N. MOLIN
Keyword(s):  
Magnetic Field ◽  
Radical Cations ◽  
Magnetic Field Effects ◽  
Time Resolved ◽  
Field Effects

scholarly journals Radical pairs may play a role in microtubule reorganization

2021 ◽  
Author(s):  
Hadi ZADEH-HAGHIGHI ◽  
Christoph Simon
Keyword(s):  
Magnetic Field ◽  
Radical Pair ◽  
Spin Dynamics ◽  
Radical Pair Mechanism ◽  
Magnetic Field Effects ◽  
Radical Pairs ◽  
Quantum Theories ◽  
Mechanism Model ◽  
Field Effects ◽  
Isotopic Dependence

The exact mechanism behind general anesthesia remains an open question in neuroscience. It has been proposed that anesthetics selectively prevent consciousness and memory via acting on microtubules (MTs). It is known that the magnetic field modulates MT organization. A recent study shows that a radical pair model can explain the isotope effect in xenon-induced anesthesia and predicts magnetic field effects on anesthetic potency. Further, reactive oxygen species are also implicated in MT stability and anesthesia. Based on a simple radical pair mechanism model and a simple mathematical model of MT organization, we show that magnetic fields can modulate spin dynamics of naturally occurring radical pairs in MT. We show that the spin dynamics influence a rate in the reaction cycle, which translates into a change in the MT density. We can reproduce magnetic field effects on the MT concentration that have been observed. Our model also predicts additional effects at slightly higher fields. Our model further predicts that the effect of zinc on the MT density exhibits isotopic dependence. The findings of this work make a connection between microtubule-based and radical pair-based quantum theories of consciousness.

scholarly journals Time-Resolved Magnetic Field Effects Distinguish Loose Ion Pairs from Exciplexes

2013 ◽  
Vol 135 (40) ◽  
pp. 15144-15152 ◽  
Author(s):  
Sabine Richert ◽  
Arnulf Rosspeintner ◽  
Stephan Landgraf ◽  
Günter Grampp ◽  
Eric Vauthey ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Ion Pairs ◽  
Magnetic Field Effects ◽  
Time Resolved ◽  
Field Effects
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