当前位置: X-MOL 学术ACS Appl. Mater. Interfaces › 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.)
Hygroscopic Auxetic On-Skin Sensors for Easy-to-Handle Repeated Daily Use
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-10-15 00:00:00 , DOI: 10.1021/acsami.8b13857
Hyun Woo Kim 1 , Tae Yeong Kim 1 , Hyung Keun Park 1 , Insang You 1 , Junghyeok Kwak 1 , Jong Chan Kim 2 , Heeseon Hwang 2 , Hyoung Seop Kim 1 , Unyong Jeong 1
Affiliation  

Despite the advance of on-skin sensors over the last decade, a sensor that solves simultaneously the critical issues for using in everyday life, such as stable performance in various environments, use over a long period of time, and repeated use by easy handling, has not yet been achieved. Here, we introduce an auxetic hygroscopic sensor that simultaneously meets all of the conditions. The auxetic structure with a negative Poisson’s ratio matches with deformation of the skin in ankles; hence, a conformal contact between the sensor and the skin could be maintained during repeated movements. Sweat was absorbed in the auxetic electrode made of a hydrogel pattern coated with Ag nanowires and evaporated quickly; such hygroscopic characteristic led to excellent breathability. An electrocardiogram sensor and a haptic device were fabricated according to the proposed design for a sensor electrode. The sensors provide stable detecting performance in various environments, such as exercising, submersion in water, exposure to concentrated salt water, and continuous wearing for long time (7 days). Also, the sensors could be manually attached repeatedly without degrading the performance. This study provides new structural insights for on-skin sensors and presents future research directions.

中文翻译:

吸湿性皮肤敏感型传感器,易于重复使用

尽管皮肤传感器在过去十年中取得了进步,但该传感器能够同时解决日常生活中使用的关键问题,例如在各种环境中的性能稳定,长期使用以及易于操作,可重复使用,尚未实现。在这里,我们介绍了一种同时满足所有条件的膨胀型吸湿传感器。泊松比为负的肿胀结构与脚踝处的皮肤变形相匹配;因此,在重复运动过程中可以保持传感器与皮肤之间的适形接触。汗液吸收在由涂有Ag纳米线的水凝胶图案制成的膨胀电极中,并迅速蒸发。这种吸湿性导致优异的透气性。根据所提出的传感器电极设计,制造了心电图传感器和触觉设备。该传感器可在各种​​环境中提供稳定的检测性能,例如运动,浸入水中,暴露于浓盐水中以及长时间(7天)连续佩戴。同样,传感器可以手动重复安装而不会降低性能。这项研究为皮肤传感器提供了新的结构见解,并提出了未来的研究方向。
更新日期:2018-10-15
down
wechat
bug