A novel 3D-Printed self-healing, touchless, and tactile multifunctional flexible sensor inspired by cutaneous sensory organs

IF 6.5 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES
Guangmeng Ma , Fawei Guo , Yu Li , Xin Luo , Chunyi Luo , Qingxin Jin , Han Wu , Jianglin Fu , Mingtao Zhang , Yu Long
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Abstract

With the rapid advancement of smart wearable devices and human-computer interaction technologies, flexible sensors have demonstrated significant development prospects. Nevertheless, the preparation of flexible sensors with multiple functionalities still poses a considerable challenge. Herein, a novel 3D-printed multifunctional flexible sensor (3DMFS) has been successfully developed, achieving the integration of multiple functions such as micro-pressure sensing, dynamic proximity perception, and intrinsic self-healing. Owing to the dielectric layer design with hierarchical biomimetic structures and the combination of the electrical double layer (EDL) effect, the 3DMFS achieves a high sensitivity of 2.449 kPa−1 (<0.5 kPa), a rapid response time of 58 ms, an ultralow detection limit of 0.5 Pa, and an ultrahigh pressure resolution of 0.1 %. Moreover, even after complete damage, the sensor can recover up to 95 % of its original sensitivity due to its inherent self-healing capability. Additionally, by employing fringe electric field effects and mutual capacitance responses, the 3DMFS enables dynamic proximity sensing and differentiation among seven distinct materials with a maximum detection distance reaching up to 11 cm. Ultimately, we offer a novel alternative for the advancement of multifunctional integrated robotic tactile perception in the future.

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来源期刊
Composites Communications
Composites Communications Materials Science-Ceramics and Composites
CiteScore
12.10
自引率
10.00%
发文量
340
审稿时长
36 days
期刊介绍: Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.
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