Steric-repulsion-based magnetically responsive photonic crystals

Wei Luo; Huiru Ma; Fangzhi Mou; Mingxing Zhu; Jindan Yan; Jianguo Guan

doi:10.1002/adma.201304134

Steric-repulsion-based magnetically responsive photonic crystals

Adv Mater. 2014 Feb;26(7):1058-64. doi: 10.1002/adma.201304134. Epub 2013 Nov 27.

Authors

Wei Luo¹, Huiru Ma, Fangzhi Mou, Mingxing Zhu, Jindan Yan, Jianguo Guan

Affiliation

¹ State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.

PMID: 24282106
DOI: 10.1002/adma.201304134

Abstract

The first steric-repulsion-based magnetically responsive photonic crystals (MRPCs) is constructed by synthesizing uniform superparamagnetic polyvinylpyrrolidone-coated Fe3 O4 colloidal nanocrystal clusters. The color tunable range of the MRPCs can not only cover almost the entire visible specztrum in solvents of diverse polarities, but also is insusceptible to ionic strength or pH values, facilitating the practical applications of MRPCs.

Keywords: magnetic photonic crystals; magnetite; polyvinylpyrrolidone; steric repulsion; surface polymers.

Publication types

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