自愈水凝胶
3d打印
软机器人
材料科学
机器人
稳健性(进化)
软质材料
纳米技术
3D打印
生物医学工程
计算机科学
人工智能
复合材料
工程类
高分子化学
化学
生物化学
基因
作者
Min Dong,Min Dong,Min Dong,Min Dong,Min Dong,Min Dong,Min Dong,Min Dong,Min Dong
出处
期刊:Materials horizons
[The Royal Society of Chemistry]
日期:2024-01-01
被引量:1
摘要
Hydrogels are an ideal material to develop soft robots. However, it remains a grand challenge to develop miniaturized hydrogel robots with mechanical robustness, rapid actuation, and multi-gait motions. Reported here is a facile strategy to fabricate hydrogel-based soft robots by three-dimensional (3D) printing of responsive and nonresponsive tough gels for programmed morphing and locomotion upon stimulations. Highly viscoelastic poly(acrylic acid-co-acrylamide) and poly(acrylic acid-co-N-isopropyl acrylamide) aqueous solutions, as well as their mixtures, are printed with multiple nozzles into 3D constructs followed by incubation in a solution of zirconium ions to form robust carboxyl-Zr4+ coordination complexes, to produce tough metallo-supramolecular hydrogel fibers. Gold nanorods are incorporated into ink to afford printed gels with response to light. Owing to the mechanical excellence and small diameter of gel fibers, the printed hydrogel robots exhibit high robustness, fast response, and agile motions when remotely steered by dynamic light. The design of printed constructs and steering with spatiotemporal light allow for multimodal motions with programmable trajectories of the gel robots. The hydrogel robots can walk, turn, flip, and transport cargos upon light stimulations. Such printed hydrogels with good mechanical performances, fast response, and agile locomotion may open opportunities for soft robots in biomedical and engineering fields.
科研通智能强力驱动
Strongly Powered by AbleSci AI