Emerging MXene‐Based Flexible Tactile Sensors for Health Monitoring and Haptic Perception

Small, Journal Year: 2023, Volume and Issue: 19(27)

Published: March 25, 2023

Abstract Due to their potential applications in physiological monitoring, diagnosis, human prosthetics, haptic perception, and human–machine interaction, flexible tactile sensors have attracted wide research interest recent years. Thanks the advances material engineering, high performance been obtained. Among representative pressure sensing materials, 2D layered nanomaterials many properties that are superior those of bulk more suitable for sensors. As a class inorganic compounds materials science, MXene has excellent electrical, mechanical, biological compatibility. MXene‐based composites proven be promising candidates due stretchability metallic conductivity. Therefore, great efforts devoted development sensor applications. In this paper, controllable preparation characterization introduced. Then, progresses on fabrication strategies, operating mechanisms, device composite‐based sensors, including piezoresistive capacitive piezoelectric triboelectric reviewed. After that, material‐based electronics motion healthcare, artificial intelligence discussed. Finally, challenges perspectives summarized.

Language: Английский

---

Materials-Driven Soft Wearable Bioelectronics for Connected Healthcare

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(2), P. 455 - 553

Published: Jan. 4, 2024

In the era of Internet-of-things, many things can stay connected; however, biological systems, including those necessary for human health, remain unable to connected global Internet due lack soft conformal biosensors. The fundamental challenge lies in fact that electronics and biology are distinct incompatible, as they based on different materials via functioning principles. particular, body is curvilinear, yet typically rigid planar. Recent advances design have generated tremendous opportunities wearable bioelectronics, which may bridge gap, enabling ultimate dream healthcare anyone, anytime, anywhere. We begin with a review historical development healthcare, indicating significant trend healthcare. This followed by focal point discussion about new design, particularly low-dimensional nanomaterials. summarize material types their attributes designing bioelectronic sensors; we also cover synthesis fabrication methods, top-down, bottom-up, combined approaches. Next, discuss energy challenges progress made date. addition front-end devices, describe back-end machine learning algorithms, artificial intelligence, telecommunication, software. Afterward, integration systems been applied various testbeds real-world settings, laboratories preclinical clinical environments. Finally, narrate remaining conjunction our perspectives.

Language: Английский

---

Wearable sensors for telehealth based on emerging materials and nanoarchitectonics

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

Published: June 2, 2023

Abstract Wearable sensors have made significant progress in sensing physiological and biochemical markers for telehealth. By monitoring vital signs like body temperature, arterial oxygen saturation, breath rate, wearable provide enormous potential the early detection of diseases. In recent years, advancements been achieved development based on two-dimensional (2D) materials with flexibility, excellent mechanical stability, high sensitivity, accuracy introducing a new approach to remote real-time health monitoring. this review, we outline 2D materials-based biosensors system. The review focused five types sensors, which were classified according their mechanism, such as pressure, strain, electrochemical, optoelectronic, temperature sensors. material capabilities impact performance operation sensor are outlined. fundamental principles mechanism well applications explored. This concludes by discussing remaining obstacles future opportunities emerging telehealth field. We hope that report will be useful individuals who want design it generate ideas.

Language: Английский

---

MXene Functionalized, Highly Breathable and Sensitive Pressure Sensors with Multi‐Layered Porous Structure

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(19)

Published: March 17, 2023

Abstract Breathable, flexible, and highly sensitive pressure sensors have drawn increasing attention due to their potential in wearable electronics for body‐motion monitoring, human‐machine interfaces, etc. However, current are usually assembled with polymer substrates or encapsulation layers, thus causing discomfort during wearing (i.e., low air/vapor permeability, mechanical mismatch) restricting applications. A breathable flexible sensor is reported nonwoven fabrics as both the electrode (printed MXene interdigitated electrode) sensing (coated MXene/silver nanowires) layers via a scalable screen‐printing approach. Benefiting from multi‐layered porous structure, demonstrates good air permeability high sensitivity (770.86–1434.89 kPa −1 ), wide range (0–100 kPa), fast response/recovery time (70/81 ms), detection limit (≈1 Pa). Particularly, this can detect full‐scale human motion small‐scale pulse beating large‐scale walking/running) sensitivity, excellent cycling stability, puncture resistance. Additionally, layer of also displays superior humidity changes, which verified by successfully monitoring breathing spoken words while sensor‐embedded mask. Given outstanding features, shows promise electronic field body health sports activity detection, disease diagnosis.

Language: Английский

---

Recent Advances in Flexible Pressure Sensors Based on MXene Materials

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: Feb. 21, 2024

In the past decade, with rapid development of wearable electronics, medical health monitoring, Internet Things, and flexible intelligent robots, pressure sensors have received unprecedented attention. As a very important kind electronic component for information transmission collection, gained wide application prospect in fields aerospace, biomedical skin, human-machine interface. recent years, MXene has attracted extensive attention because its unique 2D layered structure, high conductivity, rich surface terminal groups, hydrophilicity, which brought new breakthrough sensing. Thus, it become revolutionary pressure-sensitive material great potential. this work, advances MXene-based are reviewed from aspects sensing type, mechanism, selection, structural design, preparation strategy, application. The methods strategies to improve performance analyzed details. Finally, opportunities challenges faced by discussed. This review will bring research level, promoting wider exploitation practical materials sensors.

Language: Английский

---

Biospired Janus Silk E-Textiles with Wet–Thermal Comfort for Highly Efficient Biofluid Monitoring

Nano Letters, Journal Year: 2021, Volume and Issue: 21(20), P. 8880 - 8887

Published: Oct. 14, 2021

Functionalized textiles capable of biofluid administration are favorable for enhancing the wet–thermal comfort wearer and healthcare performance. Herein, inspired by Janus wettability lotus leaf, we propose a skin-comfortable electronic textile (e-textile) based on natural silk materials managing analysis biofluid. Silk chosen modified as both substrate sensing electrode due to its biocompatibility. The unidirectional behavior such facilitates comfortable skin microenvironment, including weakening undesired wet adhesion (∼0 mN cm–2) avoiding excessive heat or cold epidermis. We noninvasively analyze multiple targets human sweat with less required liquid volume (∼5 μL) faster (2–3 min) response time silk-based yarn woven into hydrophilic side silk. This work bridges gap between physiological technology using biomass-derived elements, presenting new type smart management health monitoring.

Language: Английский

---

Flexible breathable photothermal-therapy epidermic sensor with MXene for ultrasensitive wearable human-machine interaction

Nano Energy, Journal Year: 2023, Volume and Issue: 108, P. 108201 - 108201

Published: Jan. 11, 2023

Language: Английский

---

Flexible and breathable all-nanofiber iontronic pressure sensors with ultraviolet shielding and antibacterial performances for wearable electronics

Nano Energy, Journal Year: 2022, Volume and Issue: 95, P. 107022 - 107022

Published: Feb. 3, 2022

Language: Английский

---

Smart Fibers for Self-Powered Electronic Skins

Advanced Fiber Materials, Journal Year: 2022, Volume and Issue: 5(2), P. 401 - 428

Published: Dec. 13, 2022

Language: Английский

---

Recent Progress in Ti₃C₂T_x MXene-Based Flexible Pressure Sensors

ACS Nano, Journal Year: 2021, Volume and Issue: 15(12), P. 18880 - 18894

Published: Dec. 6, 2021

The rapid development of consumer electronics, artificial intelligence, and clinical medicine generates an increasing demand for flexible pressure sensors, whose performance depends significantly on sensitive materials with high flexibility proper conductivity. MXene, a type 2D nanomaterial, has attracted extensive attention due to its good electrical conductivity, hydrophilicity, flexibility. synthesis methods MXenes make it relatively easy control their microstructure surface termination groups. Hence, can obtain peculiar microstructures facilely combine other functional materials, making them promising prospects use in sensors. In this Review, recent advances are summarized, mainly focusing the application Finally, challenges potential solutions future also discussed.

Language: Английский

---