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A large and growing body of research shows that weak magnetic fields can significantly influence various biological systems, including plants, animals, and humans. However, the underlying mechanisms behind these phenomena remain elusive. It…

Biological Physics · Physics 2022-04-21 Hadi Zadeh-Haghighi , Christoph Simon

The mechanism used by migratory birds to orientate themselves using the geomagnetic field is still a mystery in many species. The radical pair mechanism, in which very weak magnetic fields can influence certain types of spin-dependent…

Biological Physics · Physics 2013-09-24 Neill Lambert , Simone De Liberato , Clive Emary , Franco Nori

For the first time in history, humankind might conceivably begin to imagine itself as a multi-planetary species. This goal will entail technical innovation in a number of contexts, including that of healthcare. All life on Earth shares an…

Biological Physics · Physics 2024-11-07 Betony Adams , Abbas Hassasfar , Ilya Sinayskiy , Alistair Nunn , Geoffrey Guy , Francesco Petruccione

Weak magnetic fields and isotopes have been shown to influence biological processes; however, the underlying mechanisms remain poorly understood, particularly because the corresponding interaction energies are far below thermal energies,…

The radical pair mechanism is a leading hypothesis in animal magnetic navigation. This mechanism associates the magnetic sense with the visual system, the radical pairs in cryptochromes of the eye retina being specialized magnetic receptors…

Biological Physics · Physics 2018-02-09 Vladimir N. Binhi , Frank S. Prato

Radical pairs and the dynamics they undergo are prevalent in many chemical and biological systems. Specifically, it has been proposed that the radical pair mechanism results from a relatively strong hyperfine interaction with its intrinsic…

Quantum Physics · Physics 2021-03-26 Amit Finkler , Durga Dasari

Chemical reactions involving radical-ion pairs are ubiquitous in biology, since not only are they at the basis of the photosynthetic reaction chain, but are also assumed to underlie the biochemical magnetic compass used by avian species for…

Quantum Physics · Physics 2015-05-13 I. K. Kominis

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…

Neurons and Cognition · Quantitative Biology 2021-09-30 Hadi Zadeh-Haghighi , Christoph Simon

The intricate biochemical processes underlying avian magnetoreception, the sensory ability of migratory birds to navigate using earths magnetic field, have been narrowed down to spin-dependent recombination of radical-ion pairs to be found…

Biomolecules · Quantitative Biology 2008-04-17 I. K. Kominis

Drosophila's circadian clock can be perturbed by magnetic fields, as well as by lithium administration. Cryptochromes are critical for the circadian clock. Further, the radical pairs in cryptochrome also can explain magnetoreception in…

Biological Physics · Physics 2021-07-23 Hadi Zadeh-Haghighi , Christoph Simon

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…

Biological Physics · Physics 2015-03-24 Yiteng Zhang , Gennady P. Berman , Sabre Kais

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…

Quantum Physics · Physics 2023-01-13 Hadi Zadeh-Haghighi , Rishabh Rishabh , Christoph Simon

Radical-ion pairs and their reactions have triggered the study of quantum effects in biological systems. This is because they exhibit a number of effects best understood within quantum information science, and at the same time are central…

Quantum Physics · Physics 2017-04-06 K. M. Vitalis , I. K. Kominis

Magnetic measurement can be performed by various sensors, such as SQUID and Giant Magnetoresistance. This device can achieve high accuracy while losing efficiency and convenience. The model of biological magnetic sensing in avian proposes a…

Quantum Physics · Physics 2022-02-25 Wei-Yin Chiang , Yuan-Chung Cheng , Min-Hsiu Hsieh

Experiments on the effect of radio-frequency (RF) magnetic fields on the magnetic compass orientation of migratory birds are analyzed using the theory of magnetic resonance. The results of these experiments were earlier interpreted within…

Biological Physics · Physics 2008-08-19 K. V. Kavokin

The yield of chemical reactions involving intermediate radical pairs is influenced by magnetic fields well beyond the levels expected from energy considerations. This dependence can be traced back to the microscopic dynamics of electron…

Biological Physics · Physics 2013-05-29 Gian Giacomo Guerreschi , Markus Tiersch , Ulrich E. Steiner , Hans J. Briegel

The possibility of coherent radiation by molecular magnets is investigated. It is shown that to realize the coherent radiation, it is necessary to couple the considered sample to a resonant electric circuit. A theory for describing this…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 V. I. Yukalov , E. P. Yukalova

Magnetic field effects (MFE) in certain chemical reactions have been well established in the last five decades and are attributed to the evolution of transient radical-pairs whose spin dynamics are determined by local and external magnetic…

The radical pair mechanism is an important model that may provide a basis for biological magnetoreception. To account for the high orientation precision of the real avian compass, P. J. Hore et al. proposed an intriguing phenomenon called…

Biological Physics · Physics 2024-11-12 Xiaoyu Chen , Haibin Liu , Jianming Cai

Is there a functional role for quantum mechanics or coherent quantum effects in biological processes? While this question is as old as quantum theory, only recently have measurements on biological systems on ultra-fast time-scales shed…

Biological Physics · Physics 2012-05-07 Neill Lambert , Yueh-Nan Chen , Yuan-Chung Cheng , Che-Ming Li , Guang-Yin Chen , Franco Nori
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