通过聚合物包覆的磁铁矿纳米颗粒溶液去湿制备的图案化磁环。

Patterned magnetic rings fabricated by dewetting of polymer-coated magnetite nanoparticles solution.

作者信息

An Lijuan, Li Wei, Nie Yaru, Xie Bin, Li Zhaoqiang, Zhang Junhu, Yang Bai

机构信息

Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, Peoples's Republic of China.

出版信息

J Colloid Interface Sci. 2005 Aug 15;288(2):503-7. doi: 10.1016/j.jcis.2005.03.013.

DOI:10.1016/j.jcis.2005.03.013

PMID:15927618

Abstract

Here we present a simple and controlled method for direct fabrication of ordered 2D arrays of magnetic rings. This method utilizes polystyrene-coated magnetite nanoparticles as a solution, and the magnetic rings are fabricated on patterned self-assembled monolayers by dewetting of the solution. Polystyrene-coated magnetite nanoparticles were synthesized by atom-transfer radical polymerization, which promoted the dispersibility and stability of magnetite nanoparticles in chloroform. Magnetic rings were studied using optical photograph, SEM, and magnetic force microscopy. This approach offers a new way for patterning nanoparticulate rings with deliberate control over feature composition, size, as well as interfeature distance.

摘要

在此，我们展示了一种用于直接制造有序二维磁环阵列的简单且可控的方法。该方法利用聚苯乙烯包覆的磁铁矿纳米颗粒作为溶液，并通过溶液的去湿作用在图案化的自组装单分子层上制造磁环。聚苯乙烯包覆的磁铁矿纳米颗粒通过原子转移自由基聚合合成，这促进了磁铁矿纳米颗粒在氯仿中的分散性和稳定性。使用光学照片、扫描电子显微镜和磁力显微镜对磁环进行了研究。这种方法为图案化纳米颗粒环提供了一种新途径，能够对特征组成、尺寸以及特征间距离进行精确控制。