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Tunable, Ultrasensitive, and Flexible Pressure Sensors Based on Wrinkled Microstructures for Electronic Skins.
ACS Appl Mater Interfaces 2019; 11(23):21218-21226AA

Abstract

Flexible pressure sensors play an important role in electronic skins (E-Skins), which mimic the mechanical forces sensing properties of human skin. A rational design for a pressure sensor with adjustable characteristics is in high demand for different application scenarios. Here, we present tunable, ultrasensitive, and flexible pressure sensors based on compressible wrinkled microstructures. Modifying the morphology of polydimethylsiloxane (PDMS) microstructure enables the device to obtain different sensitivities and pressure ranges for different requirements. Furthermore, by intentionally introducing hollow structures in the PDMS wrinkles, our pressure sensor exhibits an ultrahigh sensitivity of 14.268 kPa-1. The elastic microstructure-based capacitive sensor also possesses a very low detectable pressure limit (1.5 Pa), a fast response time (<50 ms), a wide pressure range, and excellent cycling stability. Implementing respiratory monitoring and vocalization recognition is realized by attaching the flexible pressure sensor onto the chest and throat, respectively, showing its great application potential for disease diagnosis, monitoring, and other advanced clinical/biological wearable technologies.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31099240

Citation

Zeng, Xiangwen, et al. "Tunable, Ultrasensitive, and Flexible Pressure Sensors Based On Wrinkled Microstructures for Electronic Skins." ACS Applied Materials & Interfaces, vol. 11, no. 23, 2019, pp. 21218-21226.
Zeng X, Wang Z, Zhang H, et al. Tunable, Ultrasensitive, and Flexible Pressure Sensors Based on Wrinkled Microstructures for Electronic Skins. ACS Appl Mater Interfaces. 2019;11(23):21218-21226.
Zeng, X., Wang, Z., Zhang, H., Yang, W., Xiang, L., Zhao, Z., ... Hu, Y. (2019). Tunable, Ultrasensitive, and Flexible Pressure Sensors Based on Wrinkled Microstructures for Electronic Skins. ACS Applied Materials & Interfaces, 11(23), pp. 21218-21226. doi:10.1021/acsami.9b02518.
Zeng X, et al. Tunable, Ultrasensitive, and Flexible Pressure Sensors Based On Wrinkled Microstructures for Electronic Skins. ACS Appl Mater Interfaces. 2019 Jun 12;11(23):21218-21226. PubMed PMID: 31099240.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Tunable, Ultrasensitive, and Flexible Pressure Sensors Based on Wrinkled Microstructures for Electronic Skins. AU - Zeng,Xiangwen, AU - Wang,Zhixuan, AU - Zhang,Heng, AU - Yang,Wei, AU - Xiang,Li, AU - Zhao,Zhizhen, AU - Peng,Lian-Mao, AU - Hu,Youfan, Y1 - 2019/05/29/ PY - 2019/5/18/pubmed PY - 2019/5/18/medline PY - 2019/5/18/entrez KW - E-skin KW - pressure sensor KW - tunable KW - ultrasensitive KW - wrinkled microstructures SP - 21218 EP - 21226 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 11 IS - 23 N2 - Flexible pressure sensors play an important role in electronic skins (E-Skins), which mimic the mechanical forces sensing properties of human skin. A rational design for a pressure sensor with adjustable characteristics is in high demand for different application scenarios. Here, we present tunable, ultrasensitive, and flexible pressure sensors based on compressible wrinkled microstructures. Modifying the morphology of polydimethylsiloxane (PDMS) microstructure enables the device to obtain different sensitivities and pressure ranges for different requirements. Furthermore, by intentionally introducing hollow structures in the PDMS wrinkles, our pressure sensor exhibits an ultrahigh sensitivity of 14.268 kPa-1. The elastic microstructure-based capacitive sensor also possesses a very low detectable pressure limit (1.5 Pa), a fast response time (<50 ms), a wide pressure range, and excellent cycling stability. Implementing respiratory monitoring and vocalization recognition is realized by attaching the flexible pressure sensor onto the chest and throat, respectively, showing its great application potential for disease diagnosis, monitoring, and other advanced clinical/biological wearable technologies. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/31099240/Tunable_Ultrasensitive_and_Flexible_Pressure_Sensors_Based_on_Wrinkled_Microstructures_for_Electronic_Skins_ L2 - https://dx.doi.org/10.1021/acsami.9b02518 DB - PRIME DP - Unbound Medicine ER -