Dual Cross-Linked Ion-Based Temperature-Responsive Conductive Hydrogels with Multiple Sensors and Steady Electrocardiogram Monitoring,Chemistry of Materials

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Dual Cross-Linked Ion-Based Temperature-Responsive Conductive Hydrogels with Multiple Sensors and Steady Electrocardiogram Monitoring
Chemistry of Materials ( IF 7.2 ) Pub Date : 2020-08-28 , DOI: 10.1021/acs.chemmater.0c01589
Yun Tan ₁ , Yuyuan Zhang ₁ , Yanjing Zhang ₂ , Jun Zheng ₁ , Huiqiong Wu ₁ , Yang Chen ₁ , Shimei Xu ₃ , Junliang Yang ₂ , Chuntai Liu ₄ , Yi Zhang ₁

Affiliation

To balance the requirements of transparency, mechanical strength, stable conductivity, and biocompatibility of traditional electronic conductive hydrogels in intelligent devices is still a formidable challenge. The increase of ionic conductive gels has provided decent transparency, stretchability, and wearability in artificial skins but the dilemma still exists between stability and functionality. This article reports a facile strategy to develop a visual thermosensitive physically and chemically dual cross-linked ion-based conductive hydrogel through in situ free-radical copolymerization, achieving robust mechanical properties, an obvious response, and a multiple sensing process. As an archetypical template, the ion-based conductive hydrogel offers an evaluation and monitoring of electrocardiogram (ECG), which is comparable to commercial electrodes. Intriguingly, such kinds of conductive gels exhibit tunable upper critical solution temperature (UCST) behaviors. Taking advantage of their high temperature responsive accuracy, the visualized qualitative observation for smart response and digitized measurement and calibration for thermal stimulus can be simultaneously achieved. We therefore believe that this work will inspire the design of skinlike sensing materials, promote the preparation of biocompatible and multiple sensing abilities and the synthesis of intelligent hydrogels, and realize their applications in biosensors, wearable devices, and biomedicine.

中文翻译：

具有多个传感器和稳定心电图监测功能的双交联离子基温度响应型导电水凝胶

平衡智能设备中传统电子导电水凝胶的透明度，机械强度，稳定的电导率和生物相容性的要求仍然是一个巨大的挑战。离子导电胶的增加在人造皮肤中提供了不错的透明度，可拉伸性和耐磨性，但在稳定性和功能性之间仍然存在困境。本文报道了一种通过原位自由基共聚开发可视化热敏物理和化学双交联离子基导电水凝胶的简便策略，该方法可实现鲁棒的机械性能，明显的响应和多重传感过程。作为原型模板，基于离子的导电水凝胶可对心电图（ECG）进行评估和监控，可与商用电极媲美。有趣的是，这类导电胶表现出可调的上临界溶液温度（UCST）行为。利用其高温响应精度，可以同时实现智能响应的可视化定性观察以及热刺激的数字化测量和校准。因此，我们相信这项工作将启发皮肤感应材料的设计，促进生物相容性和多重感应能力的制备以及智能水凝胶的合成，并实现其在生物传感器，可穿戴设备和生物医学中的应用。可以同时实现智能响应的可视化定性观察以及热刺激的数字化测量和校准。因此，我们相信这项工作将启发皮肤感应材料的设计，促进生物相容性和多重感应能力的制备以及智能水凝胶的合成，并实现其在生物传感器，可穿戴设备和生物医学中的应用。可以同时实现智能响应的可视化定性观察以及热刺激的数字化测量和校准。因此，我们相信这项工作将启发皮肤感应材料的设计，促进生物相容性和多重感应能力的制备以及智能水凝胶的合成，并实现其在生物传感器，可穿戴设备和生物医学中的应用。

更新日期：2020-09-22

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