期刊
ACS NANO
卷 4, 期 8, 页码 4531-4538出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn100645e
关键词
ferrofluid; TMV-like particles; bioengineering; magnetoviscosity; nanocomposite; biotemplate
类别
资金
- Deutsche Forschungsgemeinschaft (DFG) [1165]
Applying a magnetic field to many ferrofiuids leads to a significant increase in viscosity, but the phenomenon has yet to find technological exploitation because of the thinning caused by even weak shear flows. We have discovered that the addition of plant-virus-derived nanotubes to a commercial ferrofluid can give rise to a dramatic enhancement in magnetoviscosity and a suppression of shear thinning. The dependence of this effect on nanotube aspect ratio and surface charge, both of which were varied biotechnologically, is consistent with a scaffolding of magnetic particles into quasi-linear arrays. Direct support for this explanation is derived from transmission electron micrographs, which reveal a marked tendency for the magnetic nanoparticles to decorate the outside surface of the virus nanotubes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据