Bioinspired Stimuli-Responsive Hydrogel with Reversible Switching and Fluorescence Behavior Served as Light-Controlled Soft Actuators,Macromolecular Materials and Engineering

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Bioinspired Stimuli-Responsive Hydrogel with Reversible Switching and Fluorescence Behavior Served as Light-Controlled Soft Actuators
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2021-08-25 , DOI: 10.1002/mame.202100379
Qiaofeng Gao ₁ , Pengju Pan ₁ , Guorong Shan ₁ , Miao Du ₂

Affiliation

Stimuli-responsive materials with multiple functions occupy a significant position in the research of bionic artificial intelligence materials. It is a challenge to integrate rapid shape deformation and color change synergistically by a simple method in the same system. Herein, an effective strategy to develop an anisotropic bilayer hydrogel actuator with unified complex deformation and color change is proposed via combining the near-infrared (NIR) light-responsive graphene oxide/poly(N-isopropylacrylamide) (GO-PNIPAM) active hydrogel layer and an UV light-responsive fluorescent poly(acrylic acid [4-(1,2,2-triphenylvinyl)] benzyl ester/N-isopropylacrylamide) passive hydrogel layer. The actuator can undergo light-controlled sapphire fluorescence color change and complex shape deformation simultaneously or separately under light irradiation. It can be remotely manipulated without the requirement for additional reagents, and the irradiation dosage can be accurately modulated through adjusting the irradiation parameters. This work provides new perspectives of intelligent systems with synergistic multiple functions, including smart robots, environmental sensors, and intelligent biomimetic devices.

中文翻译：

具有可逆开关和荧光行为的仿生刺激响应水凝胶用作光控软致动器

具有多种功能的刺激响应材料在仿生人工智能材料的研究中占有重要地位。在同一系统中通过简单的方法将快速的形状变形和颜色变化协同集成是一个挑战。在此，通过结合近红外（NIR）光响应氧化石墨烯/聚（N-异丙基丙烯酰胺）（GO-PNIPAM）活性水凝胶层，提出了一种开发具有统一复杂变形和颜色变化的各向异性双层水凝胶致动器的有效策略和紫外光响应荧光聚（丙烯酸[4-（1,2,2-三苯基乙烯基）]苄酯/ N-异丙基丙烯酰胺）被动水凝胶层。致动器可以在光照射下同时或分别进行光控蓝宝石荧光颜色变化和复杂的形状变形。无需额外试剂即可远程操控，通过调节辐照参数可准确调节辐照剂量。这项工作为具有协同多功能的智能系统提供了新的视角，包括智能机器人、环境传感器和智能仿生设备。

更新日期：2021-08-25

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