Nonequilibrium, weak-field-induced cyclotron motion: A mechanism for magnetobiology

Physical review. E · 2021 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 940

Study snapshot

PublicationPhysical review. E · 2021

Study typeother

Reported directionUnclear

Evidence ratingInsufficient

Abstract

Nonequilibrium, weak-field-induced cyclotron motion: A mechanism for magnetobiology Ashot Matevosyan, Armen E Allahverdyan. Nonequilibrium, weak-field-induced cyclotron motion: A mechanism for magnetobiology. Phys Rev E. 2021 Dec;104(6-1):064407. doi: 10.1103/PhysRevE.104.064407. Abstract There is a long-time quest for understanding physical mechanisms of weak magnetic field interaction with biological matter. Two factors impeded the development of such mechanisms: first, a high (room) temperature of a cellular environment, where a weak, static magnetic field induces a (classically) zero equilibrium response. Second, the friction in the cellular environment is large, preventing a weak field to alter nonequilibrium processes such as a free diffusion of charges. Here we study a class of nonequilibrium steady states of a cellular ion in a confining potential, where the response to a (weak, homogeneous, static) magnetic field survives strong friction and thermal fluctuations. The magnetic field induces a rotational motion of the ion that proceeds with the cyclotron frequency. Such nonequilibrium states are generated by a white noise acting on the ion additionally to the nonlocal (memory-containing) friction and noise generated by an equilibrium thermal bath. The intensity of this white noise can be weak, i.e., much smaller than the thermal noise intensity. pubmed.ncbi.nlm.nih.gov

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureELF

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

The authors study nonequilibrium steady states of a cellular ion in a confining potential and report that a weak, homogeneous, static magnetic field can induce rotational motion of the ion at the cyclotron frequency, with the response surviving strong friction and thermal fluctuations. These nonequilibrium states are described as being generated by additional white noise acting on the ion alongside nonlocal (memory-containing) friction and thermal-bath noise.

Outcomes measured

theoretical mechanism for weak static magnetic field interaction with cellular ions
nonequilibrium steady-state response under strong friction and thermal fluctuations
magnetic-field-induced rotational (cyclotron-frequency) motion of an ion in a confining potential

Limitations

The abstract describes a theoretical/physical mechanism and does not report biological health outcomes or empirical measurements.
No magnetic field strength, ion type, or quantitative parameter values are provided in the abstract.
No exposure duration or real-world source context is specified.

View raw extracted JSON

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  "study_type": "other",
  "exposure": {
    "band": "ELF",
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "theoretical mechanism for weak static magnetic field interaction with cellular ions",
    "nonequilibrium steady-state response under strong friction and thermal fluctuations",
    "magnetic-field-induced rotational (cyclotron-frequency) motion of an ion in a confining potential"
  ],
  "main_findings": "The authors study nonequilibrium steady states of a cellular ion in a confining potential and report that a weak, homogeneous, static magnetic field can induce rotational motion of the ion at the cyclotron frequency, with the response surviving strong friction and thermal fluctuations. These nonequilibrium states are described as being generated by additional white noise acting on the ion alongside nonlocal (memory-containing) friction and thermal-bath noise.",
  "effect_direction": "unclear",
  "limitations": [
    "The abstract describes a theoretical/physical mechanism and does not report biological health outcomes or empirical measurements.",
    "No magnetic field strength, ion type, or quantitative parameter values are provided in the abstract.",
    "No exposure duration or real-world source context is specified."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "weak magnetic field",
    "static magnetic field",
    "magnetobiology",
    "nonequilibrium steady state",
    "cyclotron motion",
    "cellular ion",
    "confining potential",
    "friction",
    "thermal fluctuations",
    "white noise",
    "memory friction"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1103/physreve.104.064407
PubMed: 35030908

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