The rotating magnetocaloric effect as a potential mechanism for natural magnetic senses
The rotating magnetocaloric effect as a potential mechanism for natural magnetic senses
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DOI：
10.1371/journal.pone.0222401
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发表时间：
2019-10
期刊：
影响因子：
3.7
通讯作者：
A. M. Bell;J. Robinson;J. Robinson
中科院分区：
文献类型：
--
作者：
A. M. Bell;J. Robinson;J. Robinson
许多动物都能感觉到地球的磁场，包括各种各样的节肢动物和所有主要的脊椎动物。虽然这种磁感应的存在被广泛接受，但其作用机制仍然未知。基于最近对合成磁感受器的研究，我们提出了一种基于旋转磁热效应（RME）的自然磁感觉新模型，该模型预测磁性纳米颗粒产生的热量可能使动物能够检测到地球磁场的特征。使用这个模型，我们确定的条件RME产生生理信号响应地球的磁场，并建议实验，以区分候选机制的磁感受。
Many animals are able to sense the earth’s magnetic field, including varieties of arthropods and members of all major vertebrate groups. While the existence of this magnetic sense is widely accepted, the mechanism of action remains unknown. Building from recent work on synthetic magnetoreceptors, we propose a new model for natural magnetosensation based on the rotating magnetocaloric effect (RME), which predicts that heat generated by magnetic nanoparticles may allow animals to detect features of the earth’s magnetic field. Using this model, we identify the conditions for the RME to produce physiological signals in response to the earth’s magnetic field and suggest experiments to distinguish between candidate mechanisms of magnetoreception.