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旋转磁热效应作为自然磁感觉的潜在机制。

The rotating magnetocaloric effect as a potential mechanism for natural magnetic senses.

机构信息

Applied Physics Program, Rice University, Houston, Texas, United States of America.

Department of Electrical and Computer Engineering, Rice University, Houston, Texas, United States of America.

出版信息

PLoS One. 2019 Oct 1;14(10):e0222401. doi: 10.1371/journal.pone.0222401. eCollection 2019.

DOI:10.1371/journal.pone.0222401
PMID:31574085
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6773214/
Abstract

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.

摘要

许多动物能够感知地球磁场，包括各种节肢动物和所有主要脊椎动物的成员。虽然这种磁感觉的存在被广泛接受，但作用机制仍然未知。基于最近关于合成磁感受器的研究，我们提出了一个基于旋转磁热效应（RME）的自然磁感觉新模型，该模型预测磁性纳米粒子产生的热量可以使动物检测到地球磁场的特征。使用这个模型，我们确定了 RME 产生生理信号以响应地球磁场的条件，并提出了实验来区分磁感觉的候选机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ce9/6773214/9967c241a441/pone.0222401.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ce9/6773214/99674066768a/pone.0222401.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ce9/6773214/572ae73f8568/pone.0222401.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ce9/6773214/9967c241a441/pone.0222401.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ce9/6773214/99674066768a/pone.0222401.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ce9/6773214/572ae73f8568/pone.0222401.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ce9/6773214/9967c241a441/pone.0222401.g003.jpg

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