可见光驱动的、可磁控的金/氧化铁纳米马达。

Visible light-driven, magnetically steerable gold/iron oxide nanomotors.

作者信息

Zhou Dekai, Ren Liqiang, Li Yuguang C, Xu Pengtao, Gao Yuan, Zhang Guangyu, Wang Wei, Mallouk Thomas E, Li Longqiu

机构信息

Key Laboratory of Microsystems and Microstructures Manufacturing, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P. R. China.

出版信息

Chem Commun (Camb). 2017 Oct 17;53(83):11465-11468. doi: 10.1039/c7cc06327j.

DOI:10.1039/c7cc06327j

PMID:28983536

Abstract

We report the synthesis and properties of rod-shaped gold/iron oxide nanomotors that are powered by visible light in dilute hydrogen peroxide solutions. Electrochemical measurements confirmed that the light-driven nanomotors operate by a self-electrophoretic mechanism, modulated by the photovoltage and the photoconductivity of gold/iron oxide. Due to the magnetism of iron oxide, the nanomotors can be steered by an external magnetic field without incorporating additional magnetic materials into the nanomotors.

摘要

我们报道了棒状金/氧化铁纳米马达的合成及其性质，该纳米马达在稀过氧化氢溶液中由可见光驱动。电化学测量证实，光驱动纳米马达通过自电泳机制运行，该机制由金/氧化铁的光电压和光电导率调节。由于氧化铁具有磁性，纳米马达无需在其中掺入额外的磁性材料即可由外部磁场引导。