纳米马达的纳米粒子定向自组装。

Directed self-assembly of nanoparticles for nanomotors.

机构信息

Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China.

出版信息

ACS Nano. 2013 Jun 25;7(6):5192-8. doi: 10.1021/nn400925q. Epub 2013 May 13.

Abstract

We report, for the first time, the design and fabrication of a nanoparticle-based nanomotor system by directly self-assembling nanoparticles onto functional, nanometer-thin lamellae, such as polymer single crystals. Tens of thousands of judiciously selected nanoparticles (gold, iron oxide, and platinum nanoparticles) with sizes ranging from <5 to a few tens of nanometers have been introduced into a single nanomotor via directed self-assembly. The resulting nanomotor realizes functions such as autonomous movement, remote control, and cargo transportation by utilizing the advantages offered by nanoparticles, such as the small size, surface plasmon resonance, catalytic and magnetic properties. Because of the structural and functional versatility of nanoparticles, the facile fabricating procedure, and the potential for mass production, our strategy shows a key step toward the development of next generation multifunctional nanomotors.

摘要

我们首次报道了通过直接将纳米颗粒自组装到功能化的纳米薄片中(如聚合物单晶)来设计和制造基于纳米颗粒的纳米马达系统。通过定向自组装,将数万颗经过精心挑选的纳米颗粒(金、氧化铁和铂纳米颗粒)引入到单个纳米马达中,这些纳米颗粒的尺寸范围从<5 纳米到几十纳米不等。所得到的纳米马达通过利用纳米颗粒的优势(如小尺寸、表面等离子体共振、催化和磁性)实现了自主运动、远程控制和货物运输等功能。由于纳米颗粒具有结构和功能的多样性、易于制造的工艺以及大规模生产的潜力,我们的策略展示了向开发下一代多功能纳米马达迈出的关键一步。

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