Implantable Flexible Sensors for Health Monitoring

Advanced Healthcare Materials, Journal Year: 2023, Volume and Issue: 13(2)

Published: Oct. 11, 2023

Flexible sensors, as a significant component of flexible electronics, have attracted great interest the realms human-computer interaction and health monitoring due to their high conformability, adjustable sensitivity, excellent durability. In comparison wearable sensor-based in vitro monitoring, use implantable sensors (IFSs) for vivo offers more accurate reliable vital sign information ability adapt directly integrate with human tissue. IFSs show tremendous promise field unique advantages such robust signal reading capabilities, lightweight design, flexibility, biocompatibility. Herein, review signs is detailly provided, highlighting essential conditions applications. As prerequisites IFSs, stretchability wireless self-powered properties sensor are discussed, special attention paid sensing materials which can maintain prominent biosafety (i.e., biocompatibility, biodegradability, bioresorbability). Furthermore, applications various parts body described detail, summary brain eye blood monitoring. Finally, challenges well opportunities development next-generation presented.

Language: Английский

---

Recent advances in triboelectric nanogenerator-based self-powered sensors for monitoring human body signals

Nano Energy, Journal Year: 2023, Volume and Issue: 120, P. 109151 - 109151

Published: Dec. 1, 2023

Language: Английский

---

Fully paper-integrated hydrophobic and air permeable piezoresistive sensors for high-humidity and underwater wearable motion monitoring

npj Flexible Electronics, Journal Year: 2023, Volume and Issue: 7(1)

Published: March 11, 2023

Abstract Paper-based electronics have attracted much attention due to their softness, degradability, and low cost. However, paper-based sensors are difficult apply high-humidity environments or even underwater. Here, we report a fully paper-integrated piezoresistive sensing system that exhibits flexibility, waterproofing, air permeability, biocompatibility. This consists of hydrophobic paper as the substrate encapsulation layer, conductive with double ‘zig-zag’ dotted surface structure silver paste films interconnects. The structural design layer helps increase contact area in adjacent layers under pressure further improves sensitivity. can be worn on human skin ambient environment, wet water for real-time monitoring physiological signals permeability waterproofing its fiber structure. Such device provides reliable, economical, eco-friendly solution wearable technologies.

Language: Английский

---

Electronic Skin for Health Monitoring Systems: Properties, Functions, and Applications

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(31)

Published: May 17, 2024

Abstract Electronic skin (e‐skin), a skin‐like wearable electronic device, holds great promise in the fields of telemedicine and personalized healthcare because its good flexibility, biocompatibility, conformability, sensing performance. E‐skin can monitor various health indicators human body real time over long term, including physical (exercise, respiration, blood pressure, etc.) chemical (saliva, sweat, urine, etc.). In recent years, development materials, analysis, manufacturing technologies has promoted significant e‐skin, laying foundation for application next‐generation medical devices. Herein, properties required e‐skin monitoring devices to achieve long‐term precise summarize several detectable field are discussed. Subsequently, applications integrated systems reviewed. Finally, current challenges future directions this This review is expected generate interest inspiration improvement systems.

Language: Английский

---

Hierarchical Piezoelectric Composites for Noninvasive Continuous Cardiovascular Monitoring

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: April 4, 2024

Continuous monitoring of blood pressure (BP) and multiparametric analysis cardiac functions are crucial for the early diagnosis therapy cardiovascular diseases. However, existing approaches often suffer from bulky intrusive apparatus, cumbersome testing procedures, challenging data processing, hampering their applications in continuous monitoring. Here, a heterogeneously hierarchical piezoelectric composite is introduced wearable BP function monitoring, overcoming rigidity ceramic insensitivity polymer. By optimizing structure components composite, developed sensor delivers impressive performances, ensuring accurate at Grade A level. Furthermore, hemodynamic parameters extracted detected signals, such as local pulse wave velocity, output, stroke volume, all which alignment with clinical results. Finally, all-day tracking validates reliability stability sensor, highlighting its potential personalized healthcare systems, particularly timely intervention disease.

Language: Английский

---

E-Tattoos: Toward Functional but Imperceptible Interfacing with Human Skin

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(6), P. 3220 - 3283

Published: March 11, 2024

The human body continuously emits physiological and psychological information from head to toe. Wearable electronics capable of noninvasively accurately digitizing this without compromising user comfort or mobility have the potential revolutionize telemedicine, mobile health, both human–machine human–metaverse interactions. However, state-of-the-art wearable face limitations regarding wearability functionality due mechanical incompatibility between conventional rigid, planar soft, curvy skin surfaces. E-Tattoos, a unique type electronics, are defined by their ultrathin skin-soft characteristics, which enable noninvasive comfortable lamination on surfaces causing obstruction even perception. This review article offers an exhaustive exploration e-tattoos, accounting for materials, structures, manufacturing processes, properties, functionalities, applications, remaining challenges. We begin summarizing properties effects signal transmission across e-tattoo-skin interface. Following is discussion structural designs, manufacturing, attachment processes e-tattoos. classify e-tattoo functionalities into electrical, mechanical, optical, thermal, chemical sensing, as well wound healing other treatments. After discussing energy harvesting storage capabilities, we outline strategies system integration wireless In end, offer personal perspectives challenges future opportunities in field.

Language: Английский

---

Ion gradient induced self-powered flexible pressure sensor

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151660 - 151660

Published: April 25, 2024

Language: Английский

---

Flexible temperature-pressure dual sensor based on 3D spiral thermoelectric Bi2Te3 films

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 21, 2024

Dual-parameter pressure-temperature sensors are widely employed in personal health monitoring and robots to detect external signals. Herein, we develop a flexible composite dual-parameter sensor based on three-dimensional (3D) spiral thermoelectric Bi

Language: Английский

---

Enhancement and inhibition of photocatalytic hydrogen production by fine piezoelectric potential tuning over piezo-photocatalyst

Nano Energy, Journal Year: 2024, Volume and Issue: 123, P. 109341 - 109341

Published: Jan. 26, 2024

Language: Английский

---

Integrated surface microstructure and enhanced dielectric constant for constructing simple, low-cost, and high-performance flexible capacitive pressure sensor

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 376, P. 115629 - 115629

Published: June 24, 2024

Language: Английский

---