气候变化领域集成服务门户(CCPortal): Soft fibers with magnetoelasticity for wearable electronics

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DOI	10.1038/s41467-021-27066-1
	Soft fibers with magnetoelasticity for wearable electronics
	Zhao X.; Zhou Y.; Xu J.; Chen G.; Fang Y.; Tat T.; Xiao X.; Song Y.; Li S.; Chen J.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Magnetoelastic effect characterizes the change of materials’ magnetic properties under mechanical deformation, which is conventionally observed in some rigid metals or metal alloys. Here we show magnetoelastic effect can also exist in 1D soft fibers with stronger magnetomechanical coupling than that in traditional rigid counterparts. This effect is explained by a wavy chain model based on the magnetic dipole-dipole interaction and demagnetizing factor. To facilitate practical applications, we further invented a textile magnetoelastic generator (MEG), weaving the 1D soft fibers with conductive yarns to couple the observed magnetoelastic effect with magnetic induction, which paves a new way for biomechanical-to-electrical energy conversion with short-circuit current density of 0.63 mA cm−2, internal impedance of 180 Ω, and intrinsic waterproofness. Textile MEG was demonstrated to convert the arterial pulse into electrical signals with a low detection limit of 0.05 kPa, even with heavy perspiration or in underwater situations without encapsulations. © 2021, The Author(s).
语种	英语
scopus关键词	coupling; current; density; energy; metal; model; boron; iron; magnetite nanoparticle; neodymium; chemistry; devices; elasticity; electric conductivity; electronic device; heart rate; hemodynamic monitoring; human; materials testing; textile; Boron; Elasticity; Electric Conductivity; Heart Rate; Hemodynamic Monitoring; Humans; Iron; Magnetite Nanoparticles; Materials Testing; Neodymium; Textiles; Wearable Electronic Devices
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251338
作者单位	Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, United States
推荐引用方式 GB/T 7714	Zhao X.,Zhou Y.,Xu J.,et al. Soft fibers with magnetoelasticity for wearable electronics[J],2021,12(1).
APA	Zhao X..,Zhou Y..,Xu J..,Chen G..,Fang Y..,...&Chen J..(2021).Soft fibers with magnetoelasticity for wearable electronics.Nature Communications,12(1).
MLA	Zhao X.,et al."Soft fibers with magnetoelasticity for wearable electronics".Nature Communications 12.1(2021).