Journal
ACS APPLIED BIO MATERIALS
Volume 2, Issue 4, Pages 1427-1431Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsabm.9b00082
Keywords
leather; flexible electronics; respiration monitoring; humidity monitoring; ionic conductivity
Funding
- National Science Foundation for Distinguished Young Scholars [21625401]
- National Natural Science Foundation [21727808, 21574065, 21604038, 21504043, 21604040, 51702155]
- Jiangsu Provincial Founds for Natural Science Foundation [BK20160975, BK20160981, BK20170975]
- Program for Outstanding Young Scholars from the Organization Department of the CPC Central Committee
- National Key Basic Research Program of China [2015CB932200]
- National Key R&D Program of China [2017YFA0207201]
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This article presents a leather-based respiration sensor based on the ionic conductivity change of leather, caused by humidity variation during breathing. Leather was applied as a flexible substrate due to its biocompatibility, hydroscopicity, porosity, and ionic conductivity. Printing method was employed to fabricate the sensor, which could convert human respiration to electrical signals. By combining the leather with silver nanowires (AgNWs), data about human respiration rate, respiration depth, and respiration pattern can be acquired easily through a noninvasive way. Such sensor could work tens of hours consecutively due to the unique properties of leather.
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