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Multiple Structural Coloring of Silk-Fibroin Photonic Crystals and Humidity-Responsive Color Sensing

机译：丝素蛋白光子晶体的多重结构着色和对湿度响应的色彩感应

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摘要

In the biological world, numerous creatures such as butterflies, insects, and birds have exploited photonic structures to produce bicolor reflections with important biofunctions in addition to unique brilliant structural coloration. Although the mimicking of bistructural color reflection is possible, the fabrication involves a process of combined layer deposition techniques, which is complicated and less flexible. Here, a bistructural color mimicking, based on silk fibroin, is reported using a simple and inexpensive self-assembly method. Silk-fibroin inverse opals with different spectral positions of bistructural color reflection (i.e., ultraviolet and visible peaks, ultraviolet and near infrared peaks, and visible and near infrared peaks) are obtained by simply controlling their lattice constants. Furthermore, the inline and continuous tuning of the peak positions of bistructural color reflection can be achieved by the humidity-induced cyclic contraction of silk fibroin. The potential applications of silk-fibroin photonic structures in eco-dying and multifunctional silk fabrics are also demonstrated.
机译：在生物界，除了独特的明亮结构着色之外，许多生物（例如蝴蝶，昆虫和鸟类）都利用光子结构产生具有重要生物功能的双色反射。尽管可以模仿二元结构的颜色反射，但是制造涉及复合层沉积技术的过程，该过程复杂且灵活性较差。在此，使用简单且廉价的自组装方法报道了基于丝心蛋白的双色模拟。通过简单地控制它们的晶格常数，可以获得具有双结构颜色反射的不同光谱位置的丝纤蛋白反蛋白石（即，紫外和可见峰，紫外和近红外峰以及可见和近红外峰）。此外，可以通过湿度引起的丝素蛋白的循环收缩来实现对双结构色反射峰位置的在线连续调整。还证明了丝素蛋白光子结构在生态染色和多功能真丝织物中的潜在应用。

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  • 来源
    《Advanced Functional Materials》 |2013年第43期|5373-5380|共8页
  • 作者

    Ying Ying Diao; Xiang Yang Liu; Guoyang William Toh; Lei Shi; Jian Zi;

  • 作者单位

    Department of Physics and the Department of Chemistry National University of Singapore 2 Science Drive 3, Singapore 117542;

    Research Institute for Biomimetics and Soft Matter College of Materials Xiamen University 422 Si Ming Nan Road, Xiamen 361005, PR China,Department of Physics and the Department of Chemistry National University of Singapore 2 Science Drive 3, Singapore 117542;

    Department of Physics and the Department of Chemistry National University of Singapore 2 Science Drive 3, Singapore 117542;

    Department of Material Science Fudan University 220 Handan Road, Shanghai, China 200433;

    Department of Material Science Fudan University 220 Handan Road, Shanghai, China 200433;

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