A skin-like stretchable colorimetric temperature sensor

Yingzhi CHEN, Yin XI, Yujie KE, Wenhao LI, Yi LONG, Jingyuan LI, Lu Ning WANG*, Xiaohong ZHANG*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

21 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)969-976
Number of pages8
JournalScience China Materials
Volume61
Issue number7
Early online date16 Apr 2018
DOIs
Publication statusPublished - Jul 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.

Funding

This work was supported by the National Key Research and Development Program of China (2016YFB0700300), the National Natural Science Foundation of China (51503014 and This work was supported by the National Key Research and Development Program of China (2016YFB0700300), the National Natural Science Foundation of China (51503014 and 51501008), and the State Key Laboratory for Advanced Metals and Materials (2016Z-03).

Keywords

  • skin-like
  • stretchable
  • temperature sensor
  • thermochromic
  • thermofluorescent

Fingerprint

Dive into the research topics of 'A skin-like stretchable colorimetric temperature sensor'. Together they form a unique fingerprint.

Cite this