Noninvasive wearable sensor for the continuous monitoring of human sound and movement signals in real-time

Eun Ae Choi; Jeong Chan Lee; Mi Yu; Hyo Sung Kwak; Bishnu Kumar Shrestha; Chan Hee Park; Cheol Sang Kim

Heliyon (Mar 2024)

Noninvasive wearable sensor for the continuous monitoring of human sound and movement signals in real-time

Eun Ae Choi,
Jeong Chan Lee,
Mi Yu,
Hyo Sung Kwak,
Bishnu Kumar Shrestha,
Chan Hee Park,
Cheol Sang Kim

Affiliations

Eun Ae Choi: Innovative Mechanobio Active Materials Based Medical Device Demonstration Center, Jeonbuk National University, Jeonju, Republic of Korea; Interventional Mechano-Biotechnology Convergence Research Center, Jeonbuk National University, Jeonju, Republic of Korea
Jeong Chan Lee: Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea
Mi Yu: Division of Biomedical Engineering, College of Engineering, Jeonbuk National University Republic of Korea
Hyo Sung Kwak: Research Institute of Clinical Medicine of Jeonbuk National University Biomedical Research Institute of Jeonbuk National University Hospital Republic of Korea; Department of Radiology and Research Institute of Clinical Medicine of Jeonbuk National University Biomedical Research Institute of Jeonbuk National University Hospital Republic of Korea
Bishnu Kumar Shrestha: Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea; Corresponding author.
Chan Hee Park: Innovative Mechanobio Active Materials Based Medical Device Demonstration Center, Jeonbuk National University, Jeonju, Republic of Korea; Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea; Department of Mechanical Design Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea; Corresponding author. Innovative Mechanobio Active Materials Based Medical Device Demonstration Center, Jeonbuk National University, Jeonju, Republic of Korea.
Cheol Sang Kim: Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea; Department of Mechanical Design Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea; Corresponding author. Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju, Republic of Korea.

Journal volume & issue: Vol. 10, no. 5
p. e26307

Abstract

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Recently, with the development of non-invasive human health monitoring technology including wearable devices, a flexible sensor that monitors ‘human sound and movement signals’ such as human voice and muscle movement is attracting attention. In this experiment, electrospun nanofibers were mixed with highly conductive nanoparticles and coated with polyaniline to detect the patient's electrical signals. Due to the high piezoelectric effect, nanofiber-based sensors do not require charging through a separate battery, so they can be used as self-powered devices. In addition, the LCR meter test confirmed that the sensor has a high capacitance due to its high conductivity and high sensitivity to electrical signals. The sensor produced in this study can visually estimate the electrical signal of the actual human body through real-time comparison with electromyography (EMG) measuring equipment, and it was confirmed that the error is small. This sensor is expected to be widely used in the medical field, from simple sound and movement signals to disease monitoring.

Published in Heliyon

ISSN: 2405-8440 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Science: Science (General); Social Sciences: Social sciences (General)
Website: https://www.cell.com/heliyon/home

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