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Environmentally friendly and biodegradable ultra-sensitive piezoresistive sensors for wearable electronics applications.

Abstract

Highly sensitive, flexible sensors that can be manufactured with minimum environmental footprint and be seamlessly integrated in wearable devices are required for real-time tracking of complex human movement, gestures and health conditions. This study reports on how biodegradation can be used to enhance the sensitivity and electromechanical performance of piezoresistive sensors. Poly(glycerol sebacate) (PGS) elastomeric porous sensor was synthetized, blended with multiwall carbon nanotubes (MWCNTs) and sodium chloride (NaCl). Due to their unique porous characteristics, a single linear behavior over a large range of pressures (≤ 8 kPa) and an increase in their sensitivity from 0.12 ± 0.03 kPa-1 up to 8.00 ± 0.20 kPa-1, after 8 weeks in a simulated body fluid media was achieved. They can detect very low pressures (100 Pa), with negligible hysteresis, reliability, long lifetime (>200,000 cycles), short response time (≤ 20 ms) and high force sensitivity (≤ 4 mN). The characteristics of the developed foam sensors match the sensing characteristics of the human finger to pave the way towards low foot-print wearable devices for applications including human movement and condition monitoring, recreation, health and wellness, virtual reality and tissue engineering.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31972077

Citation

Sencadas, Vitor, et al. "Environmentally Friendly and Biodegradable Ultra-sensitive Piezoresistive Sensors for Wearable Electronics Applications." ACS Applied Materials & Interfaces, 2020.
Sencadas V, Tawk C, Alici G. Environmentally friendly and biodegradable ultra-sensitive piezoresistive sensors for wearable electronics applications. ACS Appl Mater Interfaces. 2020.
Sencadas, V., Tawk, C., & Alici, G. (2020). Environmentally friendly and biodegradable ultra-sensitive piezoresistive sensors for wearable electronics applications. ACS Applied Materials & Interfaces, doi:10.1021/acsami.9b21739.
Sencadas V, Tawk C, Alici G. Environmentally Friendly and Biodegradable Ultra-sensitive Piezoresistive Sensors for Wearable Electronics Applications. ACS Appl Mater Interfaces. 2020 Jan 23; PubMed PMID: 31972077.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Environmentally friendly and biodegradable ultra-sensitive piezoresistive sensors for wearable electronics applications. AU - Sencadas,Vitor, AU - Tawk,Charbel, AU - Alici,Gursel, Y1 - 2020/01/23/ PY - 2020/1/24/entrez PY - 2020/1/24/pubmed PY - 2020/1/24/medline JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces N2 - Highly sensitive, flexible sensors that can be manufactured with minimum environmental footprint and be seamlessly integrated in wearable devices are required for real-time tracking of complex human movement, gestures and health conditions. This study reports on how biodegradation can be used to enhance the sensitivity and electromechanical performance of piezoresistive sensors. Poly(glycerol sebacate) (PGS) elastomeric porous sensor was synthetized, blended with multiwall carbon nanotubes (MWCNTs) and sodium chloride (NaCl). Due to their unique porous characteristics, a single linear behavior over a large range of pressures (≤ 8 kPa) and an increase in their sensitivity from 0.12 ± 0.03 kPa-1 up to 8.00 ± 0.20 kPa-1, after 8 weeks in a simulated body fluid media was achieved. They can detect very low pressures (100 Pa), with negligible hysteresis, reliability, long lifetime (>200,000 cycles), short response time (≤ 20 ms) and high force sensitivity (≤ 4 mN). The characteristics of the developed foam sensors match the sensing characteristics of the human finger to pave the way towards low foot-print wearable devices for applications including human movement and condition monitoring, recreation, health and wellness, virtual reality and tissue engineering. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/31972077/Environmentally_friendly_and_biodegradable_ultra-sensitive_piezoresistive_sensors_for_wearable_electronics_applications L2 - https://dx.doi.org/10.1021/acsami.9b21739 DB - PRIME DP - Unbound Medicine ER -