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首页> 外文期刊>Advanced Materials >Modulation of Multiscale 3D Lattices through Conformational Control: Painting Silk Inverse Opals with Water and Light
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Modulation of Multiscale 3D Lattices through Conformational Control: Painting Silk Inverse Opals with Water and Light

机译：通过构象控制的多尺度3D晶格调制：用水和光绘制丝绸反蛋白石

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摘要

Structural proteins from naturally occurring materials are an inspiring template for material design and synthesis at multiple scales. The ability to control the assembly and conformation of such materials offers the opportunity to define fabrication approaches that recapitulate the dimensional hierarchy and structure-function relationships found in nature. A simple and versatile directed assembly method of silk fibroin, which allows the design of structures across multiple dimensional scales by generating and tuning structural color in large-scale, macro defect-free colloidally assembled 3D nano-structures in the form of silk inverse opals (SIOs) is reported. This approach effectively combines bottom-up and top-down techniques to obtain control on the nanoscale (through silk conformational changes), microscale (through patterning), and macroscale (through colloidal assembly), ultimately resulting in a controllable photonic lattice with predefined spectral behavior, with a resulting palette spanning almost the entire visible range. As a demonstration of the approach, examples of "multispectral" SIOs, paired with theoretical calculations and analysis of their response as a function of changes of lattice constants and refractive index contrast are illustrated.
机译：天然材料的结构蛋白是启发性的模板，可用于多种规模的材料设计和合成。控制此类材料的装配和构造的能力提供了定义定义自然界中的尺寸层次和结构-功能关系的制造方法的机会。一种简单而通用的丝素蛋白定向组装方法，该方法可以通过生成和调整大型，无宏观缺陷的胶体组装3D纳米结构形式的真丝反蛋白石形式来跨多维尺度设计结构（ SIOs）。这种方法有效地结合了自下而上和自上而下的技术，从而获得了对纳米级（通过丝绸构象变化），微米级（通过图案化）和宏观级（通过胶体组装）的控制，最终产生了具有预定义光谱行为的可控光子晶格，生成的调色板几乎涵盖了整个可见范围。作为该方法的演示，说明了“多光谱” SIO的示例，并结合了理论计算和作为晶格常数和折射率对比度变化的函数对其响应的分析。

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  • 来源
    《Advanced Materials》 |2017年第38期|1702769.1-1702769.9|共9页
  • 作者

    Wang Yu; Aurelio Daniele; Li Wenyi; Tseng Peter; Zheng Zhaozhu; Li Meng; Kaplan David L.; Liscidini Marco; Omenetto Fiorenzo G.;

  • 作者单位

    Tufts Univ, Dept Biomed Engn, 4 Colby St, Medford, MA 02155 USA|Tufts Univ, Silklab, 200 Boston Ave, Medford, MA 02155 USA;

    Univ Pavia, Dipartimento Fis, Via A Bassi 6, I-27100 Pavia, Italy;

    Tufts Univ, Dept Biomed Engn, 4 Colby St, Medford, MA 02155 USA|Tufts Univ, Silklab, 200 Boston Ave, Medford, MA 02155 USA;

    Tufts Univ, Dept Biomed Engn, 4 Colby St, Medford, MA 02155 USA|Tufts Univ, Silklab, 200 Boston Ave, Medford, MA 02155 USA;

    Tufts Univ, Dept Biomed Engn, 4 Colby St, Medford, MA 02155 USA;

    Tufts Univ, Dept Biomed Engn, 4 Colby St, Medford, MA 02155 USA|Tufts Univ, Silklab, 200 Boston Ave, Medford, MA 02155 USA;

    Tufts Univ, Dept Biomed Engn, 4 Colby St, Medford, MA 02155 USA|Tufts Univ, Silklab, 200 Boston Ave, Medford, MA 02155 USA;

    Univ Pavia, Dipartimento Fis, Via A Bassi 6, I-27100 Pavia, Italy;

    Tufts Univ, Dept Biomed Engn, 4 Colby St, Medford, MA 02155 USA|Tufts Univ, Silklab, 200 Boston Ave, Medford, MA 02155 USA|Tufts Univ, Dept Phys, 4 Colby St, Medford, MA 02155 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    conformational control; multispectral patterns; silk inverse opal; silk; self-assembly; structural color; photonic crystals; biopolymers;

    机译：构象控制;多光谱图样;丝绸反蛋白石;丝绸;自组装;结构颜色;光子晶体;生物聚合物;

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