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Highly Sensitive Wearable Textile-Based Humidity Sensor Made of High-Strength, Single-Walled Carbon Nanotube/Poly(vinyl alcohol) Filaments.
ACS Appl Mater Interfaces. 2017 Feb 08; 9(5):4788-4797.AA

Abstract

Textile-based humidity sensors can be an important component of smart wearable electronic-textiles and have potential applications in the management of wounds, bed-wetting, and skin pathologies or for microclimate control in clothing. Here, we report a wearable textile-based humidity sensor for the first time using high strength (∼750 MPa) and ultratough (energy-to-break, 4300 J g-1) SWCNT/PVA filaments via a wet-spinning process. The conductive SWCNT networks in the filaments can be modulated by adjusting the intertube distance by swelling the PVA molecular chains via the absorption of water molecules. The diameter of a SWCNT/PVA filament under wet conditions can be as much as 2 times that under dry conditions. The electrical resistance of a fiber sensor stitched onto a hydrophobic textile increases significantly (by more than 220 times) after water sprayed. Textile-based humidity sensors using a 1:5 weight ratio of SWCNT/PVA filaments showed high sensitivity in high relative humidity. The electrical resistance increases by more than 24 times in a short response time of 40 s. We also demonstrated that our sensor can be used to monitor water leakage on a high hydrophobic textile (contact angle of 115.5°). These smart textiles will pave a new way for the design of novel wearable sensors for monitoring blood leakage, sweat, and underwear wetting.

Authors+Show Affiliations

Composites Research Division, Korea Institute of Materials Science , 797 Changwondaero, Changwon, Gyeongnam 51508, South Korea.Composites Research Division, Korea Institute of Materials Science , 797 Changwondaero, Changwon, Gyeongnam 51508, South Korea.Composites Research Division, Korea Institute of Materials Science , 797 Changwondaero, Changwon, Gyeongnam 51508, South Korea.Composites Research Division, Korea Institute of Materials Science , 797 Changwondaero, Changwon, Gyeongnam 51508, South Korea.Composites Research Division, Korea Institute of Materials Science , 797 Changwondaero, Changwon, Gyeongnam 51508, South Korea.Composites Research Division, Korea Institute of Materials Science , 797 Changwondaero, Changwon, Gyeongnam 51508, South Korea.Composites Research Division, Korea Institute of Materials Science , 797 Changwondaero, Changwon, Gyeongnam 51508, South Korea.Simulation Team, Korea Institute of Ceramic Engineering & Technology , Jinju 52851, South Korea.Department of Mechanical Engineering, University of Delaware , Newark, Delaware 19716, United States.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28098454

Citation

Zhou, Gengheng, et al. "Highly Sensitive Wearable Textile-Based Humidity Sensor Made of High-Strength, Single-Walled Carbon Nanotube/Poly(vinyl Alcohol) Filaments." ACS Applied Materials & Interfaces, vol. 9, no. 5, 2017, pp. 4788-4797.
Zhou G, Byun JH, Oh Y, et al. Highly Sensitive Wearable Textile-Based Humidity Sensor Made of High-Strength, Single-Walled Carbon Nanotube/Poly(vinyl alcohol) Filaments. ACS Appl Mater Interfaces. 2017;9(5):4788-4797.
Zhou, G., Byun, J. H., Oh, Y., Jung, B. M., Cha, H. J., Seong, D. G., Um, M. K., Hyun, S., & Chou, T. W. (2017). Highly Sensitive Wearable Textile-Based Humidity Sensor Made of High-Strength, Single-Walled Carbon Nanotube/Poly(vinyl alcohol) Filaments. ACS Applied Materials & Interfaces, 9(5), 4788-4797. https://doi.org/10.1021/acsami.6b12448
Zhou G, et al. Highly Sensitive Wearable Textile-Based Humidity Sensor Made of High-Strength, Single-Walled Carbon Nanotube/Poly(vinyl Alcohol) Filaments. ACS Appl Mater Interfaces. 2017 Feb 8;9(5):4788-4797. PubMed PMID: 28098454.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Highly Sensitive Wearable Textile-Based Humidity Sensor Made of High-Strength, Single-Walled Carbon Nanotube/Poly(vinyl alcohol) Filaments. AU - Zhou,Gengheng, AU - Byun,Joon-Hyung, AU - Oh,Youngseok, AU - Jung,Byung-Mun, AU - Cha,Hwa-Jin, AU - Seong,Dong-Gi, AU - Um,Moon-Kwang, AU - Hyun,Sangil, AU - Chou,Tsu-Wei, Y1 - 2017/01/30/ PY - 2017/1/19/pubmed PY - 2017/1/19/medline PY - 2017/1/19/entrez KW - composite fiber KW - humidity sensor KW - single-walled carbon nanotube KW - washable textile KW - wet spinning SP - 4788 EP - 4797 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 9 IS - 5 N2 - Textile-based humidity sensors can be an important component of smart wearable electronic-textiles and have potential applications in the management of wounds, bed-wetting, and skin pathologies or for microclimate control in clothing. Here, we report a wearable textile-based humidity sensor for the first time using high strength (∼750 MPa) and ultratough (energy-to-break, 4300 J g-1) SWCNT/PVA filaments via a wet-spinning process. The conductive SWCNT networks in the filaments can be modulated by adjusting the intertube distance by swelling the PVA molecular chains via the absorption of water molecules. The diameter of a SWCNT/PVA filament under wet conditions can be as much as 2 times that under dry conditions. The electrical resistance of a fiber sensor stitched onto a hydrophobic textile increases significantly (by more than 220 times) after water sprayed. Textile-based humidity sensors using a 1:5 weight ratio of SWCNT/PVA filaments showed high sensitivity in high relative humidity. The electrical resistance increases by more than 24 times in a short response time of 40 s. We also demonstrated that our sensor can be used to monitor water leakage on a high hydrophobic textile (contact angle of 115.5°). These smart textiles will pave a new way for the design of novel wearable sensors for monitoring blood leakage, sweat, and underwear wetting. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/28098454/Highly_Sensitive_Wearable_Textile_Based_Humidity_Sensor_Made_of_High_Strength_Single_Walled_Carbon_Nanotube/Poly_vinyl_alcohol__Filaments_ L2 - https://dx.doi.org/10.1021/acsami.6b12448 DB - PRIME DP - Unbound Medicine ER -
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