弱磁场对振荡反应的放大作用。

Department of Chemistry, University of Oxford, Physical and Theoretical Chemistry Laboratory, Oxford, OX1 3QZ, UK.

Sci Rep. 2021 May 5;11(1):9615. doi: 10.1038/s41598-021-88871-8.

We explore the possibility that chemical feedback and autocatalysis in oscillating chemical reactions could amplify weak magnetic field effects on the rate constant of one of the constituent reactions, assumed to proceed via a radical pair mechanism. Using the Brusselator model oscillator, we find that the amplitude of limit cycle oscillations in the concentrations of reaction intermediates can be extraordinarily sensitive to minute changes in the rate constant of the initiation step. The relevance of such amplification to biological effects of 50/60 Hz electromagnetic fields is discussed.

我们探讨了在振荡化学反应中的化学反馈和自催化是否可能放大弱磁场对其中一个组成反应的速率常数的影响，该反应假定通过自由基对机制进行。使用布鲁塞尔振子模型，我们发现反应中间体浓度的极限环振荡的幅度对引发步骤的速率常数的微小变化非常敏感。讨论了这种放大对 50/60 Hz 电磁场生物效应的相关性。