Novel multi-responsive soft actuator assembled with a graphene oxide nanoribbons doped strain hydrogel sensor with high sensitive and NIR-triggered performances

被引：14

作者：

Liu, Jia ^{[1
]}

He, Shu ^{[1
]}

Liu, Zeng ^{[1
]}

Wu, Xing ^{[1
]}

Liu, Jian ^{[1
]}

Shao, Wei ^{[1
]}

机构：

[1] Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210037, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2023年 / 393卷

关键词：

Multi-responsive; Sensor; NIR-triggered; Bilayer; Hydrogel actuator;

D O I：

10.1016/j.snb.2023.134217

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Effectively integrating multiple properties of hydrogel materials for expanding the application field of soft materials is highly desirable. In this work, a fast initiation system was used to prepare hydrogels. Based on the dynamic hydrogen bonding interactions between two-dimensional graphene oxide nanoribbons (GONRs), polymer chains and metal ions, the hydrogel exhibited excellent mechanical properties, great sensing performance and great self-healing property. Especially, the hydrogel exhibited sensitive response performance to near infrared (NIR) light. A bilayer hydrogel actuator was assembled by combining the hydrogel with the temperature-sensitive Poly-N-isopropylacrylamide (PNIPAM) hydrogel. The bilayer hydrogel actuator exhibited stable responses to temperature, pH, and NIR light. The bilayer hydrogel could achieve bending close to 360 degrees with good cycling stability in these three environments. As a proof-of-concept, the bilayer hydrogel was used as an identifiable fluid valve with selective passage which released fluids of different properties into corresponding containers. At the same time, the self-healing properties of the hydrogel and the actuation performance of the bilayer hydrogel were successfully used to simulate the wagging motion of the tail of puppy. The developed self healing and sensing hydrogel and the assembled bilayer hydrogel actuator are expected to open new application fields in the health monitoring and soft robotics.

引用

页数：9