@article{855645a2bee24470b2e2470d553ab207,
title = "Paper-Based Wearable Ammonia Gas Sensor Using Organic–Inorganic Composite PEDOT:PSS with Iron(III) Compounds",
abstract = "Paper electronics are expected to be a game-changer in next-generation flexible electronics that could replace conventional plastic electronics. Paper electronics are disposable and cost-effective, two distinct advantages for the development of broadly accessible devices, but their poor performance has limited their practical implementation so far. Here, a high-sensitivity, high-performance, paper-based, wearable ammonia sensor comprising composite poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and iron(III) compounds is reported. The sensor achieves 10-times smaller size than the conventional sensor on Kapton film and high tolerance for humidity without losing practical sensor response. The utility of the device is demonstrated for wearable ammonia sensing in a facial mask and a nasal filter; wireless monitoring of food spoilage; and wireless monitoring of the ammonia level in a diaper. The approach of this study may open the door to advanced healthcare based on ubiquitous wearable sensing.",
keywords = "LED sensor, PEDOT:PSS, amperometry, humidity tolerance, inkjet printing",
author = "Hajime Fujita and Meiting Hao and Shinji Takeoka and Yuji Miyahara and Tatsuro Goda and Toshinori Fujie",
note = "Funding Information: H.F. and M.H. contributed equally to this work. This work was supported by Research Center for Biomedical Engineering; JSPS KAKENHI (grant number 18H03539, 18H05469, and 21H03815), MEXT Japan; Fusion Oriented REsearch for disruptive Science and Technology (FOREST) (JPMJFR203Q), Japan Science and Technology Agency (JST); and the Tanaka Memorial Foundation. T.F. is supported by the Leading Initiative for Excellent Young Researchers (LEADER) by MEXT, Japan. T.G. is supported by Mukai Science and Technology Foundation. H.F. is supported by Tokyo Tech Academy for Super Smart Society (SSS) by MEXT, Japan; and Support for Pioneering Research Initiated by the Next Generation (SPRING) by JST. M.H., H.F., and T.F. would like to thank Y. Tetsu, S. Mihara (Waseda University), T. Horii, Y. Mizuno, and M. Saito (Tokyo Institute of Technology) for discussions about inkjet printing and electrical measurement. A part of this research is based on the Cooperative Research Project of Research Center for Biomedical Engineering. BET surface area analysis was conducted with the assistance of Y. Ono at Kanagawa Institute of Industrial Science and Technology (KISTEC). Elemental mapping was conducted with the assistance of M. Tada at the Open Facility Center of Tokyo Institute of Technology. We thank Kaley McCluskey, PhD, from Edanz (https://jp.edanz.com/ac) for editing a draft of this manuscript. Funding Information: H.F. and M.H. contributed equally to this work. This work was supported by Research Center for Biomedical Engineering; JSPS KAKENHI (grant number 18H03539, 18H05469, and 21H03815), MEXT Japan; Fusion Oriented REsearch for disruptive Science and Technology (FOREST) (JPMJFR203Q), Japan Science and Technology Agency (JST); and the Tanaka Memorial Foundation. T.F. is supported by the Leading Initiative for Excellent Young Researchers (LEADER) by MEXT, Japan. T.G. is supported by Mukai Science and Technology Foundation. H.F. is supported by Tokyo Tech Academy for Super Smart Society (SSS) by MEXT, Japan; and Support for Pioneering Research Initiated by the Next Generation (SPRING) by JST. M.H., H.F., and T.F. would like to thank Y. Tetsu, S. Mihara (Waseda University), T. Horii, Y. Mizuno, and M. Saito (Tokyo Institute of Technology) for discussions about inkjet printing and electrical measurement. A part of this research is based on the Cooperative Research Project of Research Center for Biomedical Engineering. BET surface area analysis was conducted with the assistance of Y. Ono at Kanagawa Institute of Industrial Science and Technology (KISTEC). Elemental mapping was conducted with the assistance of M. Tada at the Open Facility Center of Tokyo Institute of Technology. We thank Kaley McCluskey, PhD, from Edanz ( https://jp.edanz.com/ac ) for editing a draft of this manuscript. Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",
year = "2022",
month = aug,
doi = "10.1002/admt.202101486",
language = "English",
volume = "7",
journal = "Advanced Materials Technologies",
issn = "2365-709X",
publisher = "Wiley-Blackwell",
number = "8",
}