Focus Review

Subject Categories: Self-assembled Materials

Polymer Journal (2015) 47, 106–113; doi:10.1038/pj.2014.125; published online 17 December 2014

Fusion materials for biomimetic structurally colored materials

Yukikazu Takeoka1

1Department of Molecular Design and Engineering, Nagoya University, Nagoya, Japan

Correspondence: Professor Y Takeoka, Department of Molecular Design and Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan. E-mail: ytakeoka@apchem.nagoya-u.ac.jp

Received 15 July 2014; Revised 7 November 2014; Accepted 18 November 2014
Advance online publication 17 December 2014

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Abstract

This review addresses recent developments in structurally colored materials composed of submicrometer-sized fine particles, where the structural color is not angle-dependent. Recently, studies on colloidal crystals of submicrometer-sized fine particles for structurally colored materials applications have drawn great attention. Materials researchers have become aware that many living things exhibit bright structural colors that arise from amorphous arrays of particles, pores and fibers, and are now engaged in research related to this phenomenon. In particular, colloidal amorphous arrays composed of submicrometer-sized fine particles, which can display vivid structural color without angle dependence, have become a popular topic of study within recent years. In this paper, I review the possibility of using colloidal amorphous arrays as stimuli-responsive colored materials based on the properties of colloidal amorphous arrays that have been elucidated in recent experimental investigations.