Multiple Stimuli Responsive and Identifiable Zwitterionic Ionic Conductive Hydrogel for Bionic Electronic Skin,Advanced Electronic Materials

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Multiple Stimuli Responsive and Identifiable Zwitterionic Ionic Conductive Hydrogel for Bionic Electronic Skin
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2020-06-11 , DOI: 10.1002/aelm.202000239
Hailong Huang ₁ , Lu Han ₁ , Xiaobin Fu ₂ , Yanling Wang ₁ , Zhongli Yang ₁ , Likun Pan ₁ , Min Xu ₁

Affiliation

Bionic electronic skin (E‐skin) is considered to be the best candidate for health monitoring sensor, soft robots, biomedical prostheses, artificial intelligence, and wearable electronics devices. However, most existing studies on bionic E‐skin mainly focus on their strain–stress response. Although some works involved specific response to physiological signals such as temperature, sweat, wet, and so on, most reported E‐skins lack special ability to identify multiple stimuli, which limits their applications in real working environment. In this work, an intelligent zwitterionic ionic conductive hydrogel with double network structure (SAA: NaCl/sodium alginate/poly acrylic‐acrylamide) for bionic E‐skin is developed. The SAA hydrogel as E‐skin not only exhibits high sensitivity to strain–stress, but also demonstrates superior sensing performance in human body motion and physiological signal response. More importantly, the SAA hydrogel possesses excellent identification ability to the superposed signals of multiple stimuli. The type of stimulus can be readily distinguished via electrical signal waveform. The SAA hydrogel should be promisingly applied as multiple stimuli responsive and identifiable bionic E‐skin for sports monitoring, human/machine interfaces, and soft robotics.

中文翻译：

仿生电子皮肤的多种刺激响应和可识别的两性离子离子导电水凝胶

仿生电子皮肤（E-skin）被认为是健康监测传感器，软机器人，生物医学假体，人工智能和可穿戴电子设备的最佳选择。但是，现有的大多数关于仿生E皮肤的研究都集中在应变应力响应上。尽管某些作品涉及对生理信号（例如温度，汗水，湿气等）的特定响应，但大多数报道的电子皮肤缺乏识别多种刺激的特殊能力，这限制了它们在实际工作环境中的应用。在这项工作中，开发了一种具有双网络结构的智能两性离子离子导电水凝胶（SAA：NaCl /海藻酸钠/聚丙烯酸丙烯酰胺），用于仿生E皮肤。作为电子皮肤的SAA水凝胶不仅对应变应力表现出很高的敏感性，而且在人体运动和生理信号响应方面也表现出卓越的传感性能。更重要的是，SAA水凝胶对多种刺激的叠加信号具有出色的识别能力。刺激的类型可以通过电信号波形轻松区分。SAA水凝胶应有望作为多种刺激响应和可识别的仿生E皮肤应用于运动监测，人机界面和软机器人。

更新日期：2020-07-13

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