前往化源商城

ACS Nano 2014-07-22

Flexible chains of ferromagnetic nanoparticles.

James Townsend, Ruslan Burtovyy, Yuriy Galabura, Igor Luzinov

文献索引:ACS Nano 8(7) , 6970-8, (2014)

全文:HTML全文

摘要

We report the fabrication of flexible chains of ferromagnetic Ni nanoparticles that possess the ability to adapt other than the typically observed rigid (nearly) straight configurations in the absence of an external magnetic field. The dynamic mobility of the ferromagnetic chains originates from a layer of densely grafted polyethylene glycol macromolecules enveloping each nanoparticle in the chain. While ferromagnetic chains of unmodified Ni nanoparticles behave as stiff nickel nanorods, the chains made of the grafted nanoparticles demonstrate extreme flexibility. Upon changing the direction of the field, and inevitably going through a zero-field point, the shorter chains undergo chain-globule-chain transformation. The longer chains can bend to a high degree, attaining "snake-like" configurations.

相关化合物

结构式 名称/CAS号 全部文献
丙酮 结构式 丙酮
CAS:67-64-1
乙醇 结构式 乙醇
CAS:64-17-5
水合肼 结构式 水合肼
CAS:10217-52-4
氢氧化钾 结构式 氢氧化钾
CAS:1310-58-3
氯化镍六水合物 结构式 氯化镍六水合物
CAS:7791-20-0