Ellipsoidal Artificial Melanin Particles as Building Blocks for Biomimetic Structural Coloration
Ellipsoidal Artificial Melanin Particles as Building Blocks for Biomimetic Structural Coloration
复制标题
DOI：
10.1021/acs.langmuir.9b00400
复制
发表时间：
2019-04-23
期刊：
影响因子：
3.9
通讯作者：
Nagao, Daisuke
中科院分区：
文献类型：
--
作者：
Kohri, Michinari;Tamai, Yuki;Nagao, Daisuke
受自然界中各向异性材料的结构着色的启发，我们展示了通过各向异性颗粒的组装来制备结构色材料。由聚苯乙烯核和聚多巴胺壳组成的球形人工黑色素颗粒被不对称拉伸以形成具有不同纵横比的均匀尺寸的椭圆形颗粒。椭球粒子的长径比和组装方式影响结构着色，表明粒子形状是控制结构着色的重要参数之一。利用椭球粒子控制结构色的方法的发现，有助于自然界结构色的基础研究，并为材料设计提供了灵活性，扩大了结构色材料的应用范围。
Inspired by the structural coloration of anisotropic materials in nature, we demonstrate the preparation of structural color materials by the assembly of anisotropic particles. Spherical artificial melanin particles consisting of a polystyrene core and polydopamine shell were stretched asymmetrically to form uniform-sized ellipsoidal particles with different aspect ratios. The aspect ratio and assembly method of the ellipsoidal particles influence the structural coloration, indicating that the particle shape is one of the important parameters for controlling the structural coloration. The discovery of a method to control the structural color using ellipsoidal particles is useful in basic research on structural colors in nature and provides flexibility in material design and extends the application range of structural color materials.