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General Information
    • ISSN: 2010-3719 (Online)
    • Abbreviated Title: Int. J. Inf. Electron. Eng.
    • Frequency: Quarterly
    • DOI: 10.18178/IJIEE
    • Editor-in-Chief: Prof. Chandratilak De Silva Liyanage
    • Executive Editor: Jennifer Zeng
    • Abstracting/ Indexing : Google Scholar, Electronic Journals Library, Crossref and ProQuest,  INSPEC (IET), EBSCO.
    • E-mail ijiee@ejournal.net
Editor-in-chief

 
University of Brunei Darussalam, Brunei Darussalam   
" It is a great honor to serve as the editor-in-chief of IJIEE. I'll work together with the editorial team. Hopefully, The value of IJIEE will be well recognized among the readers in the related field."

IJIEE 2020 Vol.10(2): 52-56 ISSN: 2010-3719
DOI: 10.18178/IJIEE.2020.10.2.720

Ultrahigh Skin-Conformal and Biodegradable Graphene-based Flexible Sensor for Measuring ECG Signal

Nan Wu, Hui Liu, Shu Wan, Shi Su, Haizhou Huang, and Litao Sun
Abstract—With the development of information technology as well as the arrival of the age of big data, researchers and engineers begin to pay attention to personal health data and biomedical electronics. At this time, real-time monitoring of the physiological signal of humans, such as electrocardiograph (ECG) signal, becomes vital to human beings. However, the traditional (Ag/AgCl) electrode has a couple of disadvantages such as poor stability, material waste, and heavy metal pollution. Here, our group has proposed a novel flexible ECG sensor, which is fabricated of graphene and polyvinyl alcohol (PVA) film via double transfer technique. In this electrode, graphene has been introduced as an active layer, while PVA film is served as a flexible electrode substrate. As a result, this whole sensor exhibits excellent mechanical and electrical properties and it can be biodegraded after use. The flexible sensor has a Young’s modulus of 8.598 MPa, a maximum strain of 135%, and a resistivity of 35.88Ω·m. Additionally, its resistance fluctuated within 20% strain. Then, an ancillary signal processing circuit is designed for analog signal collecting from the flexible sensor. The digital signal processing system is programmed including analog digital converter (ADC), microprocessor, signal transmission, and mobile application software. In conclusion, the whole system achieves the measurement and display of ECG signal in real-time and offers a better solution for biomedical electronics in the future.

Index Terms—Skin-conformal, biomedical electronics, real-time, wireless system, recyclable.

Nan Wu, Hui Liu, Shi Su, Haizhou Huang, and Litao Sun are with Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing, CO 210009 China (e-mail: wun@seu.edu.cn, 220181360@seu.edu.cn, shi.su@seu.edu.cn, hhz@seu.edu.cn, slt@seu.edu.cn).
Shu Wan is with School of Optoelectronics Engineering, Chongqing University, Chongqing, CO 400044 China (e-mail: wanshu@cqu.edu.cn).

[PDF]

Cite: Nan Wu, Hui Liu, Shu Wan, Shi Su, Haizhou Huang, and Litao Sun, "Ultrahigh Skin-Conformal and Biodegradable Graphene-based Flexible Sensor for Measuring ECG Signal," International Journal of Information and Electronics Engineering vol. 10, no. 2, pp. 52-56, 2020.

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