バイオセンサーが脈拍を連続追跡し、近くの機器と無線通信する Biosensor continuously tracks pulse and wirelessly communicates with nearby devices
2022-07-12 カリフォルニア大学校アーバイン校(UCI)
学術誌『Nano Energy』に最近発表した論文の中で、バイタルサインをリアルタイムで無線監視するために、柔軟な基板にナノ材料を3Dプリントして構築した発明について述べています。
現在のプロトタイプは、自己発電式の橈骨動脈脈拍モニターとして機能しますが、心拍数、体温、血圧など、健康の他の側面も、センサー回路を変更するだけで測定することができる。
＜関連情報＞
- https://news.uci.edu/2022/07/12/uci-researchers-invent-a-health-monitoring-wearable-that-operates-without-a-battery/
- https://www.sciencedirect.com/science/article/abs/pii/S2211285522005882#fig0030
オンデマンド・ワイヤレス・リアルタイム健康モニタリングのための自己発電型摩擦電気MXeneベース3Dプリントウェアラブル生理バイオシグナルセンシングシステム A self-powered triboelectric MXene-based 3D-printed wearable physiological biosignal sensing system for on-demand, wireless, and real-time health monitoring
Qian Yi,Xiaochang Pei,Prativa Das,Huiting Qin,Sang Won Lee,Rahim Esfandyarpour
Nano Energy Available online 18 June 2022
DOI:https://doi.org/10.1016/j.nanoen.2022.107511
Highlights
- •Reporting a novel, 3D-printed, and integrated self-powered wearable sensing system for real-time vital signs
monitoring.•The system is capable of continuous, real-time, on-demand, and fully self-powered radial-artery-pulse waveform monitoring.•MXene, a 2D transition material with distinctive electronegative and conductive characteristics, is the used core material.•The system is capable of wireless and continuous power and data transmission on-demand via NFC technology.
Abstract
Sustainable, self-powered wearable devices that record physiological biosignals are essential in personalized health monitoring but have yet to be achieved. Here a novel, self-powered, MXene-based, 3D-printed, flexible, and integrated wearable system for continuous, real-time physiological biosignals monitoring is proposed, developed, characterized, and validated. The system contains power-efficient triboelectric nanogenerators (TENG), highly sensitive pressure sensors, and multifunctional circuitry. MXene, with distinctive electronegative and conductive characteristics, is the core material and is amenable to 3D-printing. MXene is coupled with a skin-like Styrene-ethylene-butylene-styrene (SEBS) substrate with a positive triboelectric property and high stretchability. This self-powered physiological sensing system exhibited a power output of ~ 816.6 mW m−2, a sensitivity of ~ 6.03 kPa−1, a low detection limit of ~ 9 Pa, and a fast response time of ~ 80 ms, enabling continuous radial artery pulse (RAP) waveform monitoring without external power. Its continuous, on-demand, fully self-powered RAP monitoring and wireless data and power transmission through near-field communication are demonstrated. This is the first report of a wearable system for continuous and real-time physiological biosignals monitoring fully powered by human motion, signaling exciting potential in the field.
