Bioinspired Multi-Stimuli Responsive Actuators with Synergistic Color- and Morphing-Change Abilities.
Bioinspired Multi-Stimuli Responsive Actuators with Synergistic Color- and Morphing-Change Abilities.
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具有协同颜色和变形变化能力的仿生多刺激响应执行器
DOI：
10.1002/advs.202101295
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发表时间：
2021-08
期刊：
影响因子：
--
通讯作者：
Zhang X
中科院分区：
文献类型：
--
作者：
Li X;Liu J;Li D;Huang S;Huang K;Zhang X
复杂的感知、防御和伪装机制的结合是一种关键的本能能力，使生物体具有生存优势。这种令人着迷的多刺激反应的模拟，包括趋近性、生物发光、变色能力等，对科学家开发新型仿生智能材料具有重要意义。然而，大多数仿生变色或发光材料只能实现单一的刺激反应，因此具有协同变色的多刺激反应材料的设计和制造仍在进行中。本研究利用组装纤维素纳米晶体的胆甾液晶结构及其水/温度响应行为，开发了一种具有颜色和变形变化能力的仿生多刺激响应驱动器。该致动器具有超快速、可逆的双向湿度和近红外（NIR）光致动能力（湿度：9秒；近红外光：16秒），并伴有协同虹彩外观，为致动器的运动提供视觉提示。这项工作为仿生多刺激响应材料铺平了道路，并将在光学防伪器件、信息存储材料和智能软机器人等方面有广泛的应用。提出了一种设计精巧的智能致动器，具有超高速、可逆的双向湿/近红外光致动能力和协同虹彩外观。利用自组装的纤维素纳米晶体胆甾液晶结构及其水/温度响应行为，成功地实现了蝴蝶生动结构色彩的模拟。
The combination of complex perception, defense, and camouflage mechanisms is a pivotal instinctive ability that equips organisms with survival advantages. The simulations of such fascinating multi‐stimuli responsiveness, including thigmotropism, bioluminescence, color‐changing ability, and so on, are of great significance for scientists to develop novel biomimetic smart materials. However, most biomimetic color‐changing or luminescence materials can only realize a single stimulus‐response, hence the design and fabrication of multi‐stimuli responsive materials with synergistic color‐changing are still on the way. Here, a bioinspired multi‐stimuli responsive actuator with color‐ and morphing‐change abilities is developed by taking advantage of the assembled cellulose nanocrystals‐based cholesteric liquid crystal structure and its water/temperature response behaviors. The actuator exhibits superfast, reversible bi‐directional humidity and near‐infrared (NIR) light actuating ability (humidity: 9 s; NIR light: 16 s), accompanying with synergistic iridescent appearance which provides a visual cue for the movement of actuators. This work paves the way for biomimetic multi‐stimuli responsive materials and will have a wide range of applications such as optical anti‐counterfeiting devices, information storage materials, and smart soft robots. A delicately designed intelligent actuator is presented to exhibit superfast, reversible bi‐directional humidity/near‐infrared light actuating abilities and synergistic iridescent appearance. Taking advantage of the self‐assembled cellulose nanocrystals‐based cholesteric liquid crystal structure and its water/temperature response behaviors, the simulations of the butterflies’ vivid structural color are successfully realized.
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DOI：
10.1002/advs.202002464
发表时间：
2021-05
期刊：
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子：
--
作者：
Liu YQ;Chen ZD;Han DD;Mao JW;Ma JN;Zhang YL;Sun HB
通讯作者：
Sun HB
DOI：
10.1016/j.ijbiomac.2020.01.247
发表时间：
2020-04-15
影响因子：
8.2
作者：
Huang, Yiyan;Chen, Gaowen;Shen, Huifang
通讯作者：
Shen, Huifang
影响因子：
16.6
作者：
Li K;Shao Y;Yan H;Lu Z;Griffith KJ;Yan J;Wang G;Fan H;Lu J;Huang W;Bao B;Liu X;Hou C;Zhang Q;Li Y;Yu J;Wang H
通讯作者：
Wang H
影响因子：
29.4
作者：
Frka-Petesic, Bruno;Guidetti, Giulia;Vignolini, Silvia
通讯作者：
Vignolini, Silvia
影响因子：
9.7
作者：
Choe, Ayoung;Yeom, Jeonghee;Ko, Hyunhyub
通讯作者：
Ko, Hyunhyub