End-to-end design of wearable sensors

Nature Reviews Materials, Journal Year: 2022, Volume and Issue: 7(11), P. 887 - 907

Published: July 22, 2022

Language: Английский

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Naturally sourced hydrogels: emerging fundamental materials for next-generation healthcare sensing

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(9), P. 2992 - 3034

Published: Jan. 1, 2023

The flourishing development of flexible healthcare sensing systems is inseparable from the fundamental materials with application-oriented mechanical and electrical properties. Thanks to continuous inspiration our Mother Nature, hydrogels originating natural biomass are attracting growing attention for their structural functional designs owing unique chemical, physical biological These highly efficient architectural enable them be most promising candidates electronic devices. This comprehensive review focuses on recent advances in naturally sourced constructing multi-functional sensors applications thereof. We first briefly introduce representative polymers, including polysaccharides, proteins, polypeptides, summarize physicochemical design principles fabrication strategies hydrogel based these polymers outlined after material properties required presented. then highlight various techniques devices, illustrate examples wearable or implantable bioelectronics pressure, strain, temperature, biomarker field systems. Finally, concluding remarks challenges prospects hydrogel-based provided. hope that this will provide valuable information next-generation build a bridge between as matter an applied target accelerate new near future.

Language: Английский

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Wearable Devices for Physical Monitoring of Heart: A Review

Biosensors, Journal Year: 2022, Volume and Issue: 12(5), P. 292 - 292

Published: May 2, 2022

Cardiovascular diseases (CVDs) are the leading cause of death globally. An effective strategy to mitigate burden CVDs has been monitor patients' biomedical variables during daily activities with wearable technology. Nowadays, technological advance contributed wearables technology by reducing size devices, improving accuracy sensing be devices relatively low energy consumption that can manage security and privacy patient's medical information, have adaptability any data storage system, reasonable costs regard traditional scheme where patient must go a hospital for an electrocardiogram, thus contributing serious option in diagnosis treatment CVDs. In this work, we review commercial noncommercial used CVD variables. Our main findings revealed usually include smart wristbands, patches, smartwatches, they generally such as heart rate, blood oxygen saturation, electrocardiogram data. Noncommercial focus on monitoring photoplethysmography data, mostly accelerometers smartwatches detecting atrial fibrillation failure. However, using without healthy personal habits will disappointing results health.

Language: Английский

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Flexible Antiswelling Photothermal‐Therapy MXene Hydrogel‐Based Epidermal Sensor for Intelligent Human–Machine Interfacing

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(21)

Published: Feb. 26, 2023

Abstract Conductive hydrogel‐based epidermal sensors are regarded with broad prospects in bridging the gap between human and machine for personalized healthcare. However, it is still challenging to simultaneously achieve high sensitivity, wide sensing range, reliable cycling stability ultrasensitive human–machine interfacing, along brilliant antiswelling capability, near‐infrared (NIR) light‐triggered dissociation drug release further smart on‐demand photothermal therapy. Herein, facile preparation of a flexible multifunctional sensor from elaborately fabricated, highly stretchable, MXene hydrogel presented. It exhibits range (up 350% strain), reproducibility enabling human‐machine interfacing. displays excellent capability avoid expanding wound due excessive swelling Furthermore, possesses good biocompatibility robust performance therapy after healthcare monitoring. Meanwhile, can be triggered softened partly dissociated under prolonged NIR light irradiation transformation temperature‐sensitive low‐melting‐point Agar into sol state partial loaded on demand synergistically sterilizing bacteria efficiently promoting healing.

Language: Английский

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Recent Advances in Cardiovascular Disease Biosensors and Monitoring Technologies

ACS Sensors, Journal Year: 2023, Volume and Issue: 8(3), P. 956 - 973

Published: March 9, 2023

Cardiovascular disease (CVD) causes significant mortality and remains the leading cause of death globally. Thus, to reduce mortality, early diagnosis by measurement cardiac biomarkers heartbeat signals presents fundamental importance. Traditional CVD examination requires bulky hospital instruments conduct electrocardiography recording immunoassay analysis, which are both time-consuming inconvenient. Recently, development biosensing technologies for rapid marker screening attracted great attention. Thanks advancement in nanotechnology bioelectronics, novel biosensor platforms developed achieve detection, accurate quantification, continuous monitoring throughout progression. A variety sensing methodologies using chemical, electrochemical, optical, electromechanical means explored. This review first discusses prevalence common categories CVD. Then, blood-based that widely employed clinic, as well their utilizations prognosis, summarized. Emerging wearable implantable biosensors allowing these markers be continuously measured introduced. Finally, comparisons pros cons devices along with perspectives on future research presented.

Language: Английский

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Advancements in wearable sensors for cardiovascular disease detection for health monitoring

Materials Science and Engineering R Reports, Journal Year: 2024, Volume and Issue: 159, P. 100804 - 100804

Published: May 21, 2024

Language: Английский

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Wearable biosensors for cardiovascular monitoring leveraging nanomaterials

Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 7(3)

Published: May 27, 2024

Language: Английский

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Integration of wearable electronics and heart rate variability for human physical and mental well-being assessment

Journal of Semiconductors, Journal Year: 2025, Volume and Issue: 46(1), P. 011603 - 011603

Published: Jan. 1, 2025

Abstract Heart rate variability (HRV) that can reflect the dynamic balance between sympathetic nervous and parasympathetic of human autonomic system (ANS) has attracted considerable attention. However, traditional electrocardiogram (ECG) devices for HRV analysis are bulky, hard wires needed to attach measuring electrodes chest, resulting in poor wearable experience during long-term measurement. Compared with that, electronics enabling continuously cardiac signals monitoring assessment provide a desirable promising approach helping subjects determine sleeping issues, cardiovascular diseases, or other threats physical mental well-being. Until now, significant progress advances have been achieved applications predicting In this review, latest integration as well practical health included. The commonly used methods physiological briefly summarized. Furthermore, we highlighted research on concerning diverse such stress estimation, drowsiness detection, etc. Lastly, current limitations integrated concluded, possible solutions direction outlined.

Language: Английский

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Self-Powered Resilient Porous Sensors with Thermoelectric Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) and Carbon Nanotubes for Sensitive Temperature and Pressure Dual-Mode Sensing

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(38), P. 43783 - 43791

Published: Sept. 16, 2022

Portable and wearable dual-mode sensors that can simultaneously detect multiple stimuli are essential for emerging artificial intelligence applications, most efforts devoted to exploring pressure-sensing devices. It is still challenging integrate temperature functions into one sensor without the requirement complex decoupling processes. Herein, we develop a self-powered multifunctional by dip-coating melamine sponge with both poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) carboxylated single-walled carbon nanotubes (CNTs). By integrating thermoelectric conductive PEDOT:PSS/CNT components hydrophilic resilient porous sponge, resultant efficient in independently detecting pressure changes. The be converted voltage electrical resistance signals on basis of Seebeck piezoresistive effects, respectively. exhibits high coefficient 35.9 μV K-1 minimum detection limit 0.4 K sensitivity -3.35% kPa-1 4 Pa. Interestingly, also upon illumination. These multi-functionalities make promising tool applications electronic skin, soft robots, solar energy conversion, personal health monitoring.

Language: Английский

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Emerging sensing and modeling technologies for wearable and cuffless blood pressure monitoring

npj Digital Medicine, Journal Year: 2023, Volume and Issue: 6(1)

Published: May 22, 2023

Abstract Cardiovascular diseases (CVDs) are a leading cause of death worldwide. For early diagnosis, intervention and management CVDs, it is highly desirable to frequently monitor blood pressure (BP), vital sign closely related during people’s daily life, including sleep time. Towards this end, wearable cuffless BP extraction methods have been extensively researched in recent years as part the mobile healthcare initiative. This review focuses on enabling technologies for monitoring platforms, covering both emerging flexible sensor designs algorithms. Based signal type, sensing devices classified into electrical, optical, mechanical sensors, state-of-the-art material choices, fabrication methods, performances each type briefly reviewed. In model review, contemporary algorithmic estimation beat-to-beat measurements continuous waveform introduced. Mainstream approaches, such pulse transit time-based analytical models machine learning compared terms their input modalities, features, implementation algorithms, performances. The sheds light interdisciplinary research opportunities combine latest innovations processing fields achieve new generation measurement with improved wearability, reliability, accuracy.

Language: Английский

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