Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoring
Wearable pressure sensors with high sensitivity, fast response time, and low detection limit have great potential for blood pressure monitoring and early diagnosis of hypertension. This article introduces a piezoresistive pressure sensor based on carbon nanotubes (CNTs), polyaniline (PAni), and fabr...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2025-01-01
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| Series: | Wearable Technologies |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S2631717624000318/type/journal_article |
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| author | Milad Barati Alireza Nikfarjam |
| author_facet | Milad Barati Alireza Nikfarjam |
| author_sort | Milad Barati |
| collection | DOAJ |
| description | Wearable pressure sensors with high sensitivity, fast response time, and low detection limit have great potential for blood pressure monitoring and early diagnosis of hypertension. This article introduces a piezoresistive pressure sensor based on carbon nanotubes (CNTs), polyaniline (PAni), and fabric (CNT/PAni/fabric) for health monitoring applications. This sensor is made by using two layers of linen fabric coated with CNT and PAni. These layers are placed on a polyester fabric substrate. One of the coated layers has a mesh structure, which increases the sensitivity of the sensor and lowers its detection limit. The CNT/PAni/fabric sensor has a high sensitivity of 2.035 kPa−1 at pressures from 0 to 0.2 kPa, a response time of 290 ms, and a detection limit of 1.5 Pa. These features make it suitable for measuring blood pressure. The results obtained by measuring blood pressure using the pulse transit time method on four people, compared with the values obtained using the digital sphygmomanometer, show a discrepancy ranging between 0.019% and 1.62%. Also, the average error and standard deviation for the sensor measurement in systolic and diastolic pressures are 0.56 ± 0.33 and 0.57 ± 0.46, respectively, which shows that measurement with this sensor can be an alternative to existing devices. |
| format | Article |
| id | doaj-art-dccd8daecb254d3480f4f8f865c1618e |
| institution | Kabale University |
| issn | 2631-7176 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Wearable Technologies |
| spelling | doaj-art-dccd8daecb254d3480f4f8f865c1618e2025-02-10T07:40:13ZengCambridge University PressWearable Technologies2631-71762025-01-01610.1017/wtc.2024.31Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoringMilad Barati0Alireza Nikfarjam1https://orcid.org/0000-0002-6839-9041MEMS & NEMS Lab, Department of Microsystem and Photonics, School of Intelligent Systems Engineering, University of Tehran, Tehran, IranMEMS & NEMS Lab, Department of Microsystem and Photonics, School of Intelligent Systems Engineering, University of Tehran, Tehran, IranWearable pressure sensors with high sensitivity, fast response time, and low detection limit have great potential for blood pressure monitoring and early diagnosis of hypertension. This article introduces a piezoresistive pressure sensor based on carbon nanotubes (CNTs), polyaniline (PAni), and fabric (CNT/PAni/fabric) for health monitoring applications. This sensor is made by using two layers of linen fabric coated with CNT and PAni. These layers are placed on a polyester fabric substrate. One of the coated layers has a mesh structure, which increases the sensitivity of the sensor and lowers its detection limit. The CNT/PAni/fabric sensor has a high sensitivity of 2.035 kPa−1 at pressures from 0 to 0.2 kPa, a response time of 290 ms, and a detection limit of 1.5 Pa. These features make it suitable for measuring blood pressure. The results obtained by measuring blood pressure using the pulse transit time method on four people, compared with the values obtained using the digital sphygmomanometer, show a discrepancy ranging between 0.019% and 1.62%. Also, the average error and standard deviation for the sensor measurement in systolic and diastolic pressures are 0.56 ± 0.33 and 0.57 ± 0.46, respectively, which shows that measurement with this sensor can be an alternative to existing devices.https://www.cambridge.org/core/product/identifier/S2631717624000318/type/journal_articlemicro pressure sensorfabricCNTsPAnipulse transit timeblood pressure |
| spellingShingle | Milad Barati Alireza Nikfarjam Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoring Wearable Technologies micro pressure sensor fabric CNTs PAni pulse transit time blood pressure |
| title | Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoring |
| title_full | Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoring |
| title_fullStr | Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoring |
| title_full_unstemmed | Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoring |
| title_short | Wearable CNT/PAni/fabric piezoresistive sensor for continuous blood pressure monitoring |
| title_sort | wearable cnt pani fabric piezoresistive sensor for continuous blood pressure monitoring |
| topic | micro pressure sensor fabric CNTs PAni pulse transit time blood pressure |
| url | https://www.cambridge.org/core/product/identifier/S2631717624000318/type/journal_article |
| work_keys_str_mv | AT miladbarati wearablecntpanifabricpiezoresistivesensorforcontinuousbloodpressuremonitoring AT alirezanikfarjam wearablecntpanifabricpiezoresistivesensorforcontinuousbloodpressuremonitoring |