Zwitterionic Hydrogel with High Transparency, Ultrastretchability, and Remarkable Freezing Resistance for Wearable Strain Sensors,Biomacromolecules

当前位置： X-MOL 学术 › Biomacromolecules › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Zwitterionic Hydrogel with High Transparency, Ultrastretchability, and Remarkable Freezing Resistance for Wearable Strain Sensors
Biomacromolecules ( IF 5.5 ) Pub Date : 2021-02-15 , DOI: 10.1021/acs.biomac.0c01724
Qin Jiao ₁ , Lilong Cao ₁ , Zhijie Zhao ₁ , Hong Zhang ₂ , Junjie Li _{3,

4} , Yuping Wei _{1,

4}

Affiliation

Multifunctional hydrogel with outstanding conductivity and mechanical flexibility has received enormous attention as wearable electronic devices. However, fabricating transparent, ultrastretchable, and biocompatible hydrogel with low-temperature stability still remains a tremendous challenge. In this study, an ultrastretchable, highly transparent, and antifreezing zwitterionic-based electronic sensor is developed by introducing zwitterionic proline (ZP) into gellan gum/polyacrylamide (GG/PAAm) double network (DN) hydrogel. The existence of ZP endows the hydrogel with remarkable frost resistance. The toughness and transparency of zwitterionic Ca-GG/PAAm-ZP DN hydrogel can be maintained down to −40 °C. Also, the zwitterionic hydrogel shows good biocompatibility and protein adsorption resistance. The zwitterionic Ca-GG/PAAm-ZP DN hydrogel-based strain sensor can accurately monitor human motions (such as speaking and various joint bendings) under a broad temperature range from −40 to 25 °C. The zwitterionic Ca-GG/PAAm-ZP DN hydrogel-based strain sensor will be of immense value in the field of wearable electronic devices, especially for extreme environment applications.

中文翻译：

两性离子水凝胶，具有高透明度，超伸性和出色的耐冻性，适用于穿戴式应变传感器

多功能水凝胶具有出色的导电性和机械柔韧性，作为可穿戴电子设备受到了广泛的关注。然而，制造具有低温稳定性的透明的，可超拉伸的，生物相容的水凝胶仍然是一个巨大的挑战。在这项研究中，通过将两性离子脯氨酸（ZP）引入结冷胶/聚丙烯酰胺（GG / PAAm）双网络（DN）水凝胶中，开发了一种可超拉伸，高度透明和防冻的基于两性离子的电子传感器。ZP的存在使水凝胶具有出色的抗冻性。两性离子Ca-GG / PAAm-ZP DN水凝胶的韧性和透明性可保持在-40°C。而且，两性离子水凝胶显示出良好的生物相容性和蛋白质吸附性。基于两性离子Ca-GG / PAAm-ZP DN水凝胶的应变传感器可以在-40至25°C的宽温度范围内准确监测人体运动（例如，说话和各种关节弯曲）。基于两性离子的Ca-GG / PAAm-ZP DN水凝胶的应变传感器在可穿戴电子设备领域具有巨大的价值，尤其是在极端环境应用中。

更新日期：2021-03-08

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11