Homogeneous Chitosan/Graphene Oxide Nanocomposite Hydrogel-Based Actuator Driven by Efficient Photothermally Induced Water Gradients,ACS Applied Nano Materials

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Homogeneous Chitosan/Graphene Oxide Nanocomposite Hydrogel-Based Actuator Driven by Efficient Photothermally Induced Water Gradients
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2020-01-14 , DOI: 10.1021/acsanm.9b02338
Jiazhi Duan ₁ , Feng Liu ₁ , Ying Kong ₁ , Min Hao ₁ , Jianlong He ₁ , Jianjun Wang ₁ , Shuhua Wang ₁ , Hong Liu _{1,

2} , Yuanhua Sang ₁

Affiliation

Various kinds of photoresponsive hydrogels have been developed for years; however, the complex synthesis method and high cost limit their broad application. In the current work, a facile strategy for the light-stimuli actuator was proposed based on a homogeneous chitosan (CS)/graphene oxide (GO) nanocomposite hydrogel. Controllable actuation of the CS/GO hydrogel film has been realized as a result of the water gratitude induced by the near-IR (NIR)-light illumination. The contraction and swelling behavior of the hydrogel actuator were completely reversible, which endowed the actuator with repetitive application. Moreover, the NIR-light-induced actuation speed could be adjusted by varying the GO content in the CS/GO hydrogel. The homogeneous structure enabled the hydrogel actuator to more easily realize mass production at low cost. The demo applications of the CS/GO hydrogel actuator as a remote-control device and smart curtain were achieved under both NIR light and sunlight, which confirm the extensive application potential of this material.

中文翻译：

高效光热诱导水梯度驱动均相壳聚糖/氧化石墨烯纳米复合水凝胶致动器

多年以来，已经开发出各种光响应性水凝胶。然而，复杂的合成方法和高昂的成本限制了它们的广泛应用。在当前的工作中，提出了一种基于均质壳聚糖（CS）/氧化石墨烯（GO）纳米复合水凝胶的光刺激致动器的简便策略。由于近红外（NIR）光照产生的水感，已经实现了CS / GO水凝胶薄膜的可控驱动。水凝胶致动器的收缩和溶胀行为是完全可逆的，这使得致动器具有重复使用的特性。此外，可以通过改变CS / GO水凝胶中的GO含量来调节NIR光诱导的致动速度。均匀的结构使水凝胶致动器能够更容易地以低成本实现批量生产。

更新日期：2020-01-14

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