Results 31 to 40 of about 207,495 (287)
Magnetic isotope effects: a potential testing ground for quantum biology
Frontiers in Physiology, 2023 One possible explanation for magnetosensing in biology, such as avian magnetoreception, is based on the spin dynamics of certain chemical reactions that involve radical pairs.
Hadi Zadeh-Haghighi +5 more
doaj +1 more source
EPR Study of UV-irradiated Thymidine Microcrystals Supports Radical Intermediates in Spore Photoproduct Formation [PDF]
, 2016 Spore photoproduct is a thymidine dimer formed when bacterial endospore DNA is exposed to ultraviolet (UV) radiation. The mechanism of formation of this thymidine dimer has been proposed to proceed through a radical-pair intermediate.
Hayes, Ellen C. +3 more
core +2 more sources
COCKROACHES USE RADICAL PAIR MECHANISM TO DETECT MAGNETISM [PDF]
Journal of Experimental Biology, 2009 ![Figure][1] Restricted to our own suite of five senses, it is sometimes hard to imagine what the world is like for creatures that detect phenomena beyond our own capabilities. How many birds and insects negotiate the world by sensing the magnetic field that bathes our planet is a ...
openaire +1 more source
Avian magnetoreception model realized by coupling a magnetite-based mechanism with a radical-pair-based mechanism [PDF]
Chinese Physics B, 2013 Many animal species were verified to use geomagnetic field for their navigation, but the biophysical mechanism of magnetoreception has remained enigmatic. This paper presents a special biophysical model that consists of magnetite-based and radical-pair-based mechanisms for avian magnetoreception. The amplitude of the resultant magnetic field around the
Lu, Yan, Song, Tao
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Magnetic Field Intervention Enhances Cellular Migration Rates in Biological Scaffolds
Bioengineering, 2023 The impact of magnetic fields on cellular function is diverse but can be described at least in part by the radical pair mechanism (RPM), where magnetic field intervention alters reactive oxygen species (ROS) populations and downstream cellular signaling.
Amy M. Vecheck +3 more
doaj +1 more source
Direct Interaction of Avian Cryptochrome 4 with a Cone Specific G-Protein
Cells, 2022 Background: Night-migratory birds sense the Earth’s magnetic field by an unknown molecular mechanism. Theoretical and experimental evidence support the hypothesis that the light-induced formation of a radical-pair in European robin cryptochrome 4a ...
Katharina Görtemaker +11 more
doaj +1 more source
The Radical Pair Mechanism of Animal Magnetoreception
, 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 +1 more source
The Innovation, 2022 How animals sense the geomagnetic field remains a mystery today. A remarkable diversity has been revealed in animal magnetoreception and several sophisticated models have been put forward in the past few decades, but none have been commonly accepted yet.
Can Xie
doaj +1 more source
Quantum measurement corrections to CIDNP in photosynthetic reaction centers
New Journal of Physics, 2013 Chemically induced dynamic nuclear polarization is a signature of spin order appearing in many photosynthetic reaction centers. Such polarization, significantly enhanced above thermal equilibrium, is known to result from the nuclear spin sorting inherent
Iannis K Kominis
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A combined "electrochemical-frustrated Lewis pair" approach to hydrogen activation: surface catalytic effects at platinum electrodes [PDF]
, 2014 Herein, we extend our “combined electrochemical–frustrated Lewis pair” approach to include Pt electrode surfaces for the first time. We found that the voltammetric response of an electrochemical–frustrated Lewis pair (FLP) system involving the B(C6F5)3 ...
Ashley +48 more
core +2 more sources