Electron spin dynamics guide cell motility

• URL: http://arxiv.org/abs/2503.02923v1
• Date: Tue, 04 Mar 2025 18:51:18 GMT
• Title: Electron spin dynamics guide cell motility
• Authors: Kai Wang, Gabrielle Gilmer, Matheus Candia Arana, Hirotaka Iijima, Juliana Bergmann, Antonio Woollard, Boris Mesits, Meghan McGraw, Brian Zoltowski, Paola Cappellaro, Alex Ungar, David Pekker, David H. Waldeck, Sunil Saxena, Seth Lloyd, Fabrisia Ambrosio,
• Abstract summary: Cell injury provokes acute emission of blue photons, and these photons sensitize muscle progenitor cells to the magnetic field.<n>A comprehensive analysis of protein expression reveals that the ability of blue photons to promote cell motility is mediated by activation of calmodulin calcium sensors.
• Score: 4.364500878457465
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Diverse organisms exploit the geomagnetic field (GMF) for migration. Migrating birds employ an intrinsically quantum mechanical mechanism for detecting the geomagnetic field: absorption of a blue photon generates a radical pair whose two electrons precess at different rates in the magnetic field, thereby sensitizing cells to the direction of the GMF. In this work, using an in vitro injury model, we discovered a quantum-based mechanism of cellular migration. Specifically, we show that migrating cells detect the GMF via an optically activated, electron spin-based mechanism. Cell injury provokes acute emission of blue photons, and these photons sensitize muscle progenitor cells to the magnetic field. We show that the magnetosensitivity of muscle progenitor cells is (a) activated by blue light, but not by green or red light, and (b) disrupted by the application of an oscillatory field at the frequency corresponding to the energy of the electron-spin/magnetic field interaction. A comprehensive analysis of protein expression reveals that the ability of blue photons to promote cell motility is mediated by activation of calmodulin calcium sensors. Collectively, these data suggest that cells possess a light-dependent magnetic compass driven by electron spin dynamics.

Related papers

• Quantum modeling of radical pair magnetic sensor based on electric dipole moment [0.0]
  Photoreduction of cryptochrome protein in the retina is a well-known mechanism of navigation of birds through the geomagnetic field.<n>The absorption of blue light by the flavin adenine dinucleotide (FAD) chromophore can alter the distribution of electrons in cryptochrome.<n>The spin dynamics of electrons in the radical pair and its coupling with spatial position were investigated.
  arXiv  Detail & Related papers  (2025-10-11T12:58:38Z)
• First Sub-MeV Dark Matter Search with the QROCODILE Experiment Using Superconducting Nanowire Single-Photon Detectors [51.550188330599525]
  We present the first results from the Quantum Resolution-d Cryogenic Observatory for Dark matter Incident at Low Energy (QROCODILE)<n>The QROCODILE experiment uses a microwire-based superconducting nanowire single-photon detector (SNSPD) as a target and sensor for dark matter scattering and absorption.<n>We report new world-leading constraints on the interactions of sub-MeV dark matter particles with masses as low as 30 keV.
  arXiv  Detail & Related papers  (2024-12-20T19:00:00Z)
• A Gallery of Soft Modes: Theory and Experiment at a Ferromagnetic Quantum Phase Transition [0.0]
  We examine the low-energy excitations in the vicinity of the quantum critical point in LiHoF$_4$, a physical realization of the Transverse Field Ising Model. Microwave spectroscopy in tunable loop-gap resonator structures identifies and characterizes the soft mode and higher-energy electronuclear states.
  arXiv  Detail & Related papers  (2024-08-07T02:27:00Z)
• Quantum-enhanced photoprotection in neuroprotein architectures emerges from collective light-matter interactions [0.0]
  We study the collective quantum optical effect of superradiance in neuroprotein architectures. We predict bright superradiant states will also emerge in simulated actin filament bundles and amyloid fibrils.
  arXiv  Detail & Related papers  (2024-05-09T21:38:19Z)
• Quantum-classical approach to spin and charge pumping and the ensuing radiation in THz spintronics: Example of ultrafast-light-driven Weyl antiferromagnet Mn$_3$Sn [0.0]
  We show how fs light pulses generate spin and charge pumping and electromagnetic radiation by the latter. By switching on and off LLG dynamics and SO couplings, we unravel which microscopic mechanism contribute the most to emitted THz radiation.
  arXiv  Detail & Related papers  (2022-11-07T15:53:30Z)
• Sensing of magnetic field effects in radical-pair reactions using a quantum sensor [50.591267188664666]
  Magnetic field effects (MFE) in certain chemical reactions have been well established in the last five decades. We employ elaborate and realistic models of radical-pairs, considering its coupling to the local spin environment and the sensor. For two model systems, we derive signals of MFE detectable even in the weak coupling regime between radical-pair and NV quantum sensor.
  arXiv  Detail & Related papers  (2022-09-28T12:56:15Z)
• Microscopic-scale recording of brain neuronal electrical activity using a diamond quantum sensor [40.96261204117952]
  Existing techniques for recording activity rely on potentially damaging direct interaction with the sample. We perform passive, microscopic-scale recording of electrical activity using a biocompatible quantum sensor based on colour centres in diamond. Our results open a promising new avenue for the microscopic recording of neuronal signals, offering the prospect of high resolution imaging of electrical circuits in the living mammalian brain.
  arXiv  Detail & Related papers  (2022-08-30T08:38:02Z)
• Optical manipulation of matter waves [0.0]
  We show that matter waves can be optically manipulated via inelastic interactions with optical fields. Results support optical manipulation of matter waves as a powerful tool for microscopy, spectroscopy, and the exploration of novel fundamental phenomena associated with light-atom interactions.
  arXiv  Detail & Related papers  (2022-03-14T16:39:54Z)
• Measurements of blackbody radiation-induced transition rates between high-lying S, P and D Rydberg levels [47.187609203210705]
  We report experimental measurements of the rates of blackbody radiation-induced transitions between high-lying (n>60) S, P and D Rydberg levels of rubidium atoms in a magneto-optical trap. Our results reveal significant deviations of the measured transition rates from theory for well-defined ranges of the principal quantum number. We conclude that it should be possible to use such external cavities to control and suppress the blackbody radiation-induced transitions.
  arXiv  Detail & Related papers  (2021-11-30T12:22:32Z)
• Continuous-Wave Frequency Upconversion with a Molecular Optomechanical Nanocavity [46.43254474406406]
  We use molecular cavity optomechanics to demonstrate upconversion of sub-microwatt continuous-wave signals at $sim$32THz into the visible domain at ambient conditions. The device consists in a plasmonic nanocavity hosting a small number of molecules. The incoming field resonantly drives a collective molecular vibration, which imprints an optomechanical modulation on a visible pump laser.
  arXiv  Detail & Related papers  (2021-07-07T06:23:14Z)
• Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices [62.997667081978825]
  We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter. We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios. These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
  arXiv  Detail & Related papers  (2020-11-16T08:03:44Z)
• Ferromagnetic Gyroscopes for Tests of Fundamental Physics [49.853792068336034]
  A ferromagnetic gyroscope (FG) is a ferromagnet whose angular momentum is dominated by electron spin polarization and that will precess under the action of an external torque. We model and analyze FG dynamics and sensitivity, focusing on practical schemes for experimental realization.
  arXiv  Detail & Related papers  (2020-10-17T07:13:50Z)
• Quantum Kinetics of the Magneto Photo Galvanic Effect [0.0]
  We derive quasiclassical equations for Bloch electrons in noncentrosymmetric crystals upon excitation with quasimonochromatic radiation. These equations are the analog to the semiconductor-Bloch-equations for the dynamics of electrons including the photogalvanic effect (PGE) We disprove existing statements that the shift-photogalvanic effect does not contribute to the photo-Hall current.
  arXiv  Detail & Related papers  (2020-09-27T14:55:00Z)
• Fast electrical modulation of strong near-field interactions between erbium emitters and graphene [42.60602838972598]
  We show fast, all-electrical modulation of the near-field interactions between a nanolayer of erbium emitters and graphene. We demonstrate strong interactions with a >1,000-fold increased decay rate for 25% of the emitters. This opens routes to quantum entanglement generation by collective plasmon emission or photon emission with controlled waveform.
  arXiv  Detail & Related papers  (2020-07-22T08:48:01Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.