Fabrication of High-Sensitivity Skin-Attachable Temperature Sensors with Bioinspired Microstructured Adhesive
- Authors
- Oh, Ju Hyun; Hong, Soo Yeong; Park, Heun; Jin, Sang Woo; Jeong, Yu Ra; Oh, Seung Yun; Yun, Junyeong; Lee, Hanchan; Kim, Jung Wook; Ha, Jeong Sook
- Issue Date
- 28-2월-2018
- Publisher
- AMER CHEMICAL SOC
- Keywords
- skin-attachable sensors; temperature sensor; bioinspired adhesive; poly(N-isopropylacrylamide); poly(3,4-ethylenedioxythiophene) polystyrene sulfonate-carbon nanotube composite
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.10, no.8, pp.7263 - 7270
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 10
- Number
- 8
- Start Page
- 7263
- End Page
- 7270
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/77302
- DOI
- 10.1021/acsami.7b17727
- ISSN
- 1944-8244
- Abstract
- In this study, we demonstrate the fabrication of a highly sensitive flexible temperature sensor with a bioinspired octopus-mimicking adhesive. A resistor-type temperature sensor consisting of a composite of poly(N-isopropylacrylamide) (pNI-PAM)-temperature sensitive hydrogel, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate, and carbon nanotubes exhibits a very high thermal sensitivity of 2.6%.degrees C-1 between 25 and 40 degrees C so that the change in skin temperature of 0.5 degrees C can be accurately detected. At the same time, the polydimethylsiloxane adhesive layer of octopus-mimicking rim structure coated with pNIPAM is fabricated through the formation of a single mold by utilizing undercut phenomenon in photolithography. The fabricated sensor shows stable and reproducible detection of skin temperature under repeated attachment/detachment cycles onto skin without any skin irritation for a long time. This work suggests a high potential application of our skin-attachable temperature sensor to wearable devices for medical and health-care monitoring.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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