Reconfigurable photonic crystals enabled by pressure-responsive shape-memory polymers.
Reconfigurable photonic crystals enabled by pressure-responsive shape-memory polymers.
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DOI：
10.1038/ncomms8416
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发表时间：
2015-06-15
影响因子：
16.6
通讯作者：
Jiang, Peng
中科院分区：
文献类型：
--
作者：
Fang, Yin;Ni, Yongliang;Leo, Sin-Yen;Taylor, Curtis;Basile, Vito;Jiang, Peng
智能形状记忆聚合物可以根据外部刺激（例如，热）记忆并恢复其永久形状。它们已被广泛应用于从生物医学设备到航空航天变形结构的广泛应用。然而，大多数现有的形状记忆聚合物是热响应的，它们的性能受到热要求编程和恢复步骤的阻碍。虽然压力是一个容易调节的过程变量，如温度，但压力响应型形状记忆聚合物在很大程度上尚未开发。在这里，我们报告了一系列形状记忆聚合物，它们可以通过在环境条件下施加接触压力来实现不寻常的“冷”编程和瞬时形状恢复。此外，从两个不同领域——快速生长的光子晶体和形状记忆聚合物技术——提取的科学原理的跨学科整合，使可重构光子晶体的制造成为可能，同时为研究纳米尺度上有趣的形状记忆效应提供了一种简单而敏感的光学技术。基于压力刺激的智能形状记忆聚合物具有潜在的生物医学和航空航天应用，但在很大程度上尚未开发。在这里，Fang等人提出了一种可重构的光子晶体，它可以通过压力响应形状记忆聚合物在环境条件下重新编程。
Smart shape-memory polymers can memorize and recover their permanent shape in response to an external stimulus (for example, heat). They have been extensively exploited for a wide spectrum of applications ranging from biomedical devices to aerospace morphing structures. However, most of the existing shape-memory polymers are thermoresponsive and their performance is hindered by heat-demanding programming and recovery steps. Although pressure is an easily adjustable process variable such as temperature, pressure-responsive shape-memory polymers are largely unexplored. Here we report a series of shape-memory polymers that enable unusual ‘cold' programming and instantaneous shape recovery triggered by applying a contact pressure at ambient conditions. Moreover, the interdisciplinary integration of scientific principles drawn from two disparate fields—the fast-growing photonic crystal and shape-memory polymer technologies—enables fabrication of reconfigurable photonic crystals and simultaneously provides a simple and sensitive optical technique for investigating the intriguing shape-memory effects at nanoscale. Smart shape-memory polymers based on pressure stimuli have potential biomedical and aerospace applications but are largely unexplored. Here, Fang et al. present a reconfigurable photonic crystal that is reprogrammed at ambient conditions by a pressure-responsive shape-memory polymer.
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影响因子：
10.8
作者：
Jang, Ji-Hyun;Koh, Cheong Yang;Thomas, Edwin L.
通讯作者：
Thomas, Edwin L.
影响因子：
35
作者：
Rinne, Stephanie A.;Garcia-Santamaria, Florencio;Braun, Paul V.
通讯作者：
Braun, Paul V.
影响因子：
8.6
作者：
SATPATHY, S;ZHANG, Z;SALEHPOUR, MR
通讯作者：
SALEHPOUR, MR
影响因子：
6.4
作者：
Burgess, Ian B.;Loncar, Marko;Aizenberg, Joanna
通讯作者：
Aizenberg, Joanna
影响因子：
16.6
作者：
Deotare, Parag B.;Bulu, Irfan;Loncar, Marko
通讯作者：
Loncar, Marko