期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 532, 期 -, 页码 564-569出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2017.03.035
关键词
Polydopamine; Dip-coating; Structural color film; Melanin; Biomimetic
资金
- JSPS KAKENHI [15H01593]
- Noguchi Institute
- Chiba University Venture Business Laboratory
- Konica Minolta Science and Technology Foundation
- Grants-in-Aid for Scientific Research [16K14072, 16K13971, 17H03110, 17H03035, 15H01593] Funding Source: KAKEN
Some beautiful structural colorations found in nature are produced by microstructures of melanin. Polydopamine (PDA), produced by the self-oxidative polymerization of dopamine, is known as a mimetic material of melanin. Previous experiments by our group have shown that PDA-based structural color materials produced bright structural colors upon enhancing the color saturation through the absorption of light scattering. Herein, we describe the preparation of structural color films by a dip-coating of biomimetic melanin-like particles with PDA shell layers. Various parameters of the dip-coating method influencing the structural coloration were investigated in detail. Experimental results revealed that the obtained films exhibited bright and angle-dependent structural colors independent of a background color, i.e., black or white background. These findings provide new insights for the development of dye-free ink technologies. (C) 2017 Elsevier B.V. All rights reserved.
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