Spider-Web and Ant-Tentacle Doubly Bio-Inspired Multifunctional Self-Powered Electronic Skin with Hierarchical Nanostructure.
Spider-Web and Ant-Tentacle Doubly Bio-Inspired Multifunctional Self-Powered Electronic Skin with Hierarchical Nanostructure.
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蜘蛛网和蚂蚁触手双重生物启发的具有分层纳米结构的多功能自供电电子皮肤
DOI：
10.1002/advs.202004377
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发表时间：
2021-08
期刊：
影响因子：
--
通讯作者：
Cui B
中科院分区：
文献类型：
--
作者：
Yue O;Wang X;Liu X;Hou M;Zheng M;Wang Y;Cui B
对于可穿戴电子皮肤的实际应用，需要同时评估和定制多功能、自供电、可生物降解、生物兼容和可呼吸的材料。将这些功能集成到灵活的电子皮肤中是非常可取的，然而，构建一个满足实际应用需求的电子皮肤是具有挑战性的。因此，基于蜘蛛网和蚂蚁触角构建了一种具有多层纳米结构的仿生多功能电子皮肤，它可以通过摩擦电纳米发电机收集生物能量，同时检测压力、湿度和温度。由于聚乙烯醇/聚偏氟乙烯纳米纤维的蜘蛛网结构、内部珠链结构以及胶原聚集体纳米纤维的正摩擦材料，e-Skin具有最高的压力灵敏度(0.48nV/kpa−1)和高检测范围(0-135kpa)。同时，模仿蚂蚁触角的纳米纤维为e-Skin提供了较短的响应和恢复时间(对S来说分别为16和25)，以适应较宽的湿度范围(RH为25-85%)。电子皮肤在周围温度范围内(27-55℃)表现出温度系数(Tcr=约0.0075°C−1)。此外，天然的胶原聚集体和全纳米纤维结构确保了电子皮肤的生物降解性、生物兼容性和透气性，显示出极大的实用性。本研究基于蜘蛛网和蚂蚁触角构建了一种具有多层纳米结构的仿生多功能电子皮肤(e-Skin)，它可以通过摩擦电纳米发电机收集生物能量，同时检测压力、湿度和温度。此外，天然的胶原蛋白聚集体和全纳米纤维结构确保了电子皮肤的生物降解性、生物兼容性和透气性。
For the practical applications of wearable electronic skin (e‐skin), the multifunctional, self‐powered, biodegradable, biocompatible, and breathable materials are needed to be assessed and tailored simultaneously. Integration of these features in flexible e‐skin is highly desirable; however, it is challenging to construct an e‐skin to meet the requirements of practical applications. Herein, a bio‐inspired multifunctional e‐skin with a multilayer nanostructure based on spider web and ant tentacle is constructed, which can collect biological energy through a triboelectric nanogenerator for the simultaneous detection of pressure, humidity, and temperature. Owing to the poly(vinyl alcohol)/poly(vinylidene fluoride) nanofibers spider web structure, internal bead‐chain structure, and the collagen aggregate nanofibers based positive friction material, e‐skin exhibits the highest pressure sensitivity (0.48 V kPa−1) and high detection range (0–135 kPa). Synchronously, the nanofibers imitating the antennae of ants provide e‐skin with short response and recovery time (16 and 25 s, respectively) to a wide humidity range (25–85% RH). The e‐skin is demonstrated to exhibit temperature coefficient of resistance (TCR = 0.0075 °C−1) in a range of the surrounding temperature (27–55 °C). Moreover, the natural collagen aggregate and the all‐nanofibers structure ensure the biodegradability, biocompatibility, and breathability of the e‐skin, showing great promise for practicability. In this study, a bio‐inspired multifunctional electronic skin (e‐skin) with a multilayer nanostructure based on spider web and ant tentacle is constructed, which can collect biological energy through a triboelectric nanogenerator for the simultaneous detection of pressure, humidity, and temperature. Moreover, the natural collagen aggregate and the all‐nanofiber structure ensure the biodegradability, biocompatibility, and breathability of the e‐skin.
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影响因子：
16.6
作者：
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作者：
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影响因子：
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作者：
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