热致变色
材料科学
聚二甲基硅氧烷
出汗
弹性体
可穿戴计算机
光电子学
信号(编程语言)
人体皮肤
纳米技术
热的
复合材料
电子皮肤
计算机科学
嵌入式系统
气象学
有机化学
化学
物理
程序设计语言
生物
遗传学
作者
Yingzhi Chen,Xia Yin,Yujie Ke,Wenhao Li,Yi Long,Jingyuan Li,Luning Wang,Shun Zhang
标识
DOI:10.1007/s40843-018-9266-8
摘要
Wearable and stretchable physical sensors that can conformally contact on the surface of organs or skin provide a new opportunity for human-activity monitoring and personal healthcare. Particularly, various attempts have been made in exploiting wearable and conformal sensors for thermal characterization of human skin. In this respect, skin-mounted thermochromic films show great capabilities in body temperature sensing. Thermochromic temperature sensors are attractive because of their easy signal analysis and optical recording, such as color transition and fluorescence emission change upon thermal stimuli. Here, desirable mechanical properties that match epidermis are obtained by physical crosslinking of polydiacetylene (PDA) and transparent elastomeric polydimethylsiloxane (PDMS) networks. The resulting PDA film displayed thermochromic and thermofluorescent transition temperature in the range of 25–85°C, with stretchability up to 300% and a skin-like Young’s modulus of ~230 kPa. This easy signal-handling provides excellent references for further design of convenient noninvasive sensing systems.
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