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DOI	10.1073/pnas.2017355118
	Ferromagnetic liquid droplets with adjustable magnetic properties
	Wu X.; Streubel R.; Liu X.; Kim P.Y.; Chai Y.; Hu Q.; Wang D.; Fischer P.; Russell T.P.
发表日期	2021
ISSN	00278424
卷号	118 期号:8
英文摘要	The assembly and jamming of magnetic nanoparticles (NPs) at liquid–liquid interfaces is a versatile platform to endow structured liquid droplets with a magnetization, i.e., producing ferromagnetic liquid droplets (FMLDs). Here, we use hydrodynamics experiments to probe how the magnetization of FMLDs and their response to external stimuli can be tuned by chemical, structural, and magnetic means. The remanent magnetization stems from magnetic NPs jammed at the liquid–liquid interface and dispersed NPs magneto-statically coupled to the interface. FMLDs form even at low concentrations of magnetic NPs when mixing nonmagnetic and magnetic NPs, since the underlying magnetic dipole-driven clustering of magnetic NP-surfactants at the interface produces local magnetic properties, similar to those found with pure magnetic NP solutions. While the net magnetization is smaller, such a clustering of NPs may enable structured liquids with heterogeneous surfaces. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	3D nanomagnetism; Ferromagnetic liquid droplet; Liquid–liquid interface; Magnetic nanoparticle-surfactants; Self-assembly
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180591
作者单位	Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Department of Physics and Astronomy, University of Nebraska–Lincoln, Lincoln, NE 68588, United States; Nebraska Center for Materials and Nanoscience, University of Nebraska–Lincoln, Lincoln, NE 68588, United States; CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; Department of Physics, City University of Hong Kong, Kowloon, Hong Kong; Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Polymer Science and Engineering Department, University of Massachusetts Amherst, Amherst, MA 0100...
推荐引用方式 GB/T 7714	Wu X.,Streubel R.,Liu X.,et al. Ferromagnetic liquid droplets with adjustable magnetic properties[J],2021,118(8).
APA	Wu X..,Streubel R..,Liu X..,Kim P.Y..,Chai Y..,...&Russell T.P..(2021).Ferromagnetic liquid droplets with adjustable magnetic properties.Proceedings of the National Academy of Sciences of the United States of America,118(8).
MLA	Wu X.,et al."Ferromagnetic liquid droplets with adjustable magnetic properties".Proceedings of the National Academy of Sciences of the United States of America 118.8(2021).