Xue-Qing Zhan, Han Chen, Zhi-Ling Hong, Yong-Ping Leng, Chang-Chang Zhu, Chang-Bo Zhang, Zhong-Xiang Tang, Qian Chen, Ning Ma, Fang-Chang Tsai
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Conjugated Carbonyl Compound-Enhanced Hydrogels for Tactile Recognition
Hydrogels that possess both self-healing capabilities in tissue engineering and mechanical properties play a pivotal role in advancing flexible sensing and wearable bioelectronic devices technologies. The primary challenge in practical applications revolves around the delicate equilibrium between mechanical properties and self-regeneration capabilities. Herein, the utilization of conjugated carbonyl compound PI-COF (Polyimide-Covalent organic framework) is proposed as reinforcing phases to interact with iron ions, thereby preparing PAA-based double network hydrogel with high cross-linking density. Through comprehensive component analysis, it has been determined that the existence of metal coordination bonds, hydrogen bonds along with π–π conjugate system imparts (PAA-2DC)-Fe3+/PEDOT: PSS hydrogel excellent self-healing performance (3rd, 196.2%), elongation (1312%) and tensile strength (71 kPa). Additionally, the hydrogel exhibits remarkable conductivity (σ = 0.5 S m−1), strain sensing sensitivity (GF = 9.3), self-adhesive properties and demonstrating its ability to differentiate between materials of various sizes and possesses antibacterial properties. These exceptional attributes highlight the potential of the hydrogel in tissue engineering and flexible sensing, simultaneously providing novel research ideas and theoretical basis.
期刊介绍:
Advanced Electronic Materials is an interdisciplinary forum for peer-reviewed, high-quality, high-impact research in the fields of materials science, physics, and engineering of electronic and magnetic materials. It includes research on physics and physical properties of electronic and magnetic materials, spintronics, electronics, device physics and engineering, micro- and nano-electromechanical systems, and organic electronics, in addition to fundamental research.