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An amylopectin-enabled skin-mounted hydrogel wearable sensor
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2020-12-15 , DOI: 10.1039/d0tb02460k Lingshu Kong 1, 2, 3, 4, 5 , Zijian Gao 1, 2, 3, 4, 5 , Xinyao Li 1, 2, 3, 4, 5 , Guanghui Gao 1, 2, 3, 4, 5
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2020-12-15 , DOI: 10.1039/d0tb02460k Lingshu Kong 1, 2, 3, 4, 5 , Zijian Gao 1, 2, 3, 4, 5 , Xinyao Li 1, 2, 3, 4, 5 , Guanghui Gao 1, 2, 3, 4, 5
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Self-adhesiveness is highly desirable for conformal and seamless wearable electronics. Here, a starch-tackifying method is proposed to obtain adhesive and robust hydrogel conductors with the assistance of amylopectin (Amy). The conductive hydrogels are composed of Amy/poly(acrylamide–acrylic acid) polymer networks, which can be assembled into wearable sensors. The hydrogels rely on physical interactions such as hydrogen bonding that can be generated on the surface of the material, including skin, to exhibit robust and repeatable self-adhesive behaviors. Besides, the construction of a covalent and dynamic dual cross-linking network endows the hydrogel with good mechanical properties to bear repeated stretching and flexible deformation. In particular, the hydrogel is assembled into a wearable stretchable and compressible sensor and exhibits a repeatable and stable resistance signal variation for detecting both large and tiny scale human activities and physiological signals, such as bending of joints, speaking, walking, and jumping. Accordingly, the amylopectin-enabled skin-mounted hydrogel sensor can be considered as an ideal choice for human movement monitoring and personal health diagnosis.
中文翻译：
具有支链淀粉的皮肤水凝胶可穿戴式传感器
自粘对于保形和无缝可穿戴电子产品是非常需要的。在此，提出了一种淀粉增粘方法，以借助于支链淀粉（Amy）获得粘性和坚固的水凝胶导体。导电水凝胶由Amy /聚（丙烯酰胺-丙烯酸）聚合物网络组成，可以组装成可穿戴传感器。水凝胶依赖于可在包括皮肤在内的材料表面上产生的诸如氢键之类的物理相互作用，以显示出坚固且可重复的自粘行为。此外，共价和动态双交联网络的建设赋予水凝胶良好的机械性能，以承受反复拉伸和柔性变形。特别是，水凝胶被组装成可穿戴的可拉伸和可压缩的传感器，并呈现出可重复且稳定的电阻信号变化，可检测大规模和微小规模的人类活动以及生理信号，例如关节弯曲，说话，行走和跳跃。因此，支链淀粉使能皮肤的水凝胶传感器可以被认为是人体运动监测和个人健康诊断的理想选择。
更新日期：2021-01-08
中文翻译：
具有支链淀粉的皮肤水凝胶可穿戴式传感器
自粘对于保形和无缝可穿戴电子产品是非常需要的。在此，提出了一种淀粉增粘方法，以借助于支链淀粉（Amy）获得粘性和坚固的水凝胶导体。导电水凝胶由Amy /聚（丙烯酰胺-丙烯酸）聚合物网络组成，可以组装成可穿戴传感器。水凝胶依赖于可在包括皮肤在内的材料表面上产生的诸如氢键之类的物理相互作用，以显示出坚固且可重复的自粘行为。此外，共价和动态双交联网络的建设赋予水凝胶良好的机械性能，以承受反复拉伸和柔性变形。特别是，水凝胶被组装成可穿戴的可拉伸和可压缩的传感器，并呈现出可重复且稳定的电阻信号变化，可检测大规模和微小规模的人类活动以及生理信号，例如关节弯曲，说话，行走和跳跃。因此，支链淀粉使能皮肤的水凝胶传感器可以被认为是人体运动监测和个人健康诊断的理想选择。
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