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

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

doi:10.1016/j.jcis.2005.03.013

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

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

Authors

Lijuan An¹, Wei Li, Yaru Nie, Bin Xie, Zhaoqiang Li, Junhu Zhang, Bai Yang

Affiliation

¹ Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, Peoples's Republic of China.

PMID: 15927618
DOI: 10.1016/j.jcis.2005.03.013

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Ferrosoferric Oxide / chemistry*
Magnetics*
Nanostructures / chemistry*
Particle Size
Polystyrenes / chemistry*
Solutions / chemistry
Surface Properties
Wettability

Substances

Polystyrenes
Solutions
Ferrosoferric Oxide