Surface Terminations of MXene: Synthesis, Characterization, and Properties DOI Open Access

Mengrao Tang,

Jiaming Li, Yu Wang

et al.

Symmetry, Journal Year: 2022, Volume and Issue: 14(11), P. 2232 - 2232

Published: Oct. 24, 2022

MXene, 2D transition metal carbides, nitrides, and carbonitrides with a unique structure, inspired series of function applications related to energy storage conversion, biometrics sensing, lighting, purification, separation. Its surface terminations are confined by the adjacent MXene layers, form planar space symmetrical surfaces, which is similar nanoreactor that can be utilized determined MXene’s function. Based on working principle, interface play critical roles in ion intercalation, physical/chemical adsorption, chemical reaction process, show significant effects properties functions. Although there have been some reviews less attention has paid underlying principle involved chemistry, controllable design, resultant properties. Herein, regulation methods, characterization techniques, were summarized understand effects, relationship between We expected this review offer route for ongoing studies address environment guidelines application.

Language: Английский

Artificial Intelligence (AI) and Internet of Medical Things (IoMT) Assisted Biomedical Systems for Intelligent Healthcare DOI Creative Commons
Pandiaraj Manickam, Siva Ananth Mariappan,

Sindhu Monica Murugesan

et al.

Biosensors, Journal Year: 2022, Volume and Issue: 12(8), P. 562 - 562

Published: July 25, 2022

Artificial intelligence (AI) is a modern approach based on computer science that develops programs and algorithms to make devices intelligent efficient for performing tasks usually require skilled human intelligence. AI involves various subsets, including machine learning (ML), deep (DL), conventional neural networks, fuzzy logic, speech recognition, with unique capabilities functionalities can improve the performances of medical sciences. Such systems simplify intervention in clinical diagnosis, imaging, decision-making ability. In same era, Internet Medical Things (IoMT) emerges as next-generation bio-analytical tool combines network-linked biomedical software application advancing health. this review, we discuss importance improving IoMT point-of-care (POC) used advanced healthcare sectors such cardiac measurement, cancer diabetes management. The role supporting robotic surgeries developed applications also discussed article. position functionality, detection accuracy, ability devices, evaluation associated risks assessment carefully critically review. This review encompasses technological engineering challenges prospects AI-based cloud-integrated personalized designing POC suitable healthcare.

Language: Английский

Citations

362

Ti3C2Tx MXene-Based Flexible Piezoresistive Physical Sensors DOI
Yongxin Wang, Yue Yang, Feng Cheng

et al.

ACS Nano, Journal Year: 2022, Volume and Issue: 16(2), P. 1734 - 1758

Published: Feb. 11, 2022

MXenes have received increasing attention due to their two-dimensional layered structure, high conductivity, hydrophilicity, and large specific surface area. Because of these distinctive advantages, are considered as very competitive pressure-sensitive materials in applications flexible piezoresistive sensors. This work reviews the preparation methods, basic properties, assembly methods recent developments sensor applications. The MXene-based sensors can be categorized into one-dimensional fibrous, planar, three-dimensional according various structures. trends multifunctional integration pressure also summarized. Finally, we end this review by describing opportunities challenges for great prospects field

Language: Английский

Citations

280

Recent advances of MXenes as electrocatalysts for hydrogen evolution reaction DOI Creative Commons

Saishuai Bai,

Meiqing Yang,

Jizhou Jiang

et al.

npj 2D Materials and Applications, Journal Year: 2021, Volume and Issue: 5(1)

Published: Sept. 9, 2021

Abstract MXenes, an emerging two-dimensional (2D) transition metal carbides, nitrides and carbonitrides, have exhibited great potential as electrocatalysts for hydrogen evolution reaction (HER) due to the excellent characters, including structural chemical stability, superior electrical conductivity, large active surface area. In this comprehensive study, firstly, preparation advances of MXenes are systematically summarized. Then, representative applications MXenes-based HER introduced, from experimental theoretical aspects. Thirdly, strategies improving catalytic activity demonstrated, such optimizing sites by termination modification metal-atom doping, increasing fabricating various nanostructures. Finally, existing challenges new opportunities also elucidated. This paper provides reference future development efficient production through water-splitting technology.

Language: Английский

Citations

248

High‐Performance Flexible Pressure Sensor with a Self‐Healing Function for Tactile Feedback DOI
Mei Yang, Yongfa Cheng, Yue Yang

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(20)

Published: April 15, 2022

High-performance flexible pressure sensors have attracted a great deal of attention, owing to its potential applications such as human activity monitoring, man-machine interaction, and robotics. However, most high-performance are complex costly manufacture. These cannot be repaired after external mechanical damage lack tactile feedback applications. Herein, sensor based on MXene/polyurethane (PU)/interdigital electrodes is fabricated by using low-cost universal spray method. The sprayed MXene the spinosum structure PU other arbitrary substrates (represented polyimide membrane filter) act sensitive layer interdigital electrodes, respectively. shows an ultrahigh sensitivity (up 509.8 kPa-1 ), extremely fast response speed (67.3 ms), recovery (44.8 good stability (10 000 cycles) due interaction between electrodes. In addition, hydrogen bond endows device with self-healing function. can also integrated circuit, which realize This MXene-based sensor, along designing/fabrication, expected widely used in detection, electronic skin, intelligent robots, many aspects.

Language: Английский

Citations

198

Wearable Pressure Sensors Based on MXene/Tissue Papers for Wireless Human Health Monitoring DOI
Li Yang, Hongli Wang, Wenjing Yuan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2021, Volume and Issue: 13(50), P. 60531 - 60543

Published: Dec. 13, 2021

Though the widely available, low-cost, and disposable papers have been explored in flexible paper-based pressure sensors, it is still difficult for them to simultaneously achieve ultrahigh sensitivity, low limit broad range of detection, high-pressure resolution. Herein, we demonstrate a novel sensing platform that features MXene-coated tissue paper (MTP) sandwiched between polyimide encapsulation layer printing with interdigital electrodes. After replacing weighing MTP sensor, silver electrodes can be recycled through incineration. The resulting sensor or exhibits high sensitivity 509.5 344.0 kPa-1, (∼1 Pa) (100 kPa) outstanding stability over 10 000 loading/unloading cycles. With wide range, monitor various physiological signals human movements. Configuring sensors into an array layout results smart artificial electronic skin recognize spatial distribution. also integrated signal processing wireless communication modules on face mask as remote respiration monitoring system wirelessly detect conditions respiratory abnormalities early self-identification opioid overdose, pulmonary fibrosis, other cardiopulmonary diseases.

Language: Английский

Citations

197

Flexible Accelerated‐Wound‐Healing Antibacterial MXene‐Based Epidermic Sensor for Intelligent Wearable Human‐Machine Interaction DOI
Mingkun Li, Yunfei Zhang,

Lishuyi Lian

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(47)

Published: Sept. 17, 2022

Abstract Flexible epidermic sensors made from conductive hydrogels are holding bright potential in personalized healthcare, multifunctional electronic skins, and human‐machine interfaces. However, it is still a great challenge to simultaneously realize hydrogel‐based with reliable self‐healing ability remarkable sensing performances high‐performance healthcare (especially electrophysiological signals) for wearable interaction, as well accelerated wound healing subsequent medical treatment together. Herein, flexible healable sensor assembled the facilely prepared antibacterial MXene hydrogel efficiently sensitively interaction. The as‐prepared possesses enhanced mechanical performance, outstanding capability, injectability, facile degradability, excellent biocompatibility, robust ability, which capable of being into monitor human movements rehabilitation training, detect tiny signals diagnosis cardiovascular‐ muscle‐related diseases, be employed In addition, can utilized treat infection effectively accelerate healing. Thus, sheds light on preparing integration personal health smart interaction next‐generation artificial skins.

Language: Английский

Citations

193

Roles of MXene in Pressure Sensing: Preparation, Composite Structure Design, and Mechanism DOI
Dandan Lei, Nishuang Liu,

Tuoyi Su

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(52)

Published: March 15, 2022

Abstract Flexible pressure sensors are one of the most important components in fields electronic skin (e‐skin), robotics, and health monitoring. However, application practice is still difficult expensive due to limited sensing properties complex manufacturing process. The emergence MXene, a red‐hot member 2D nanomaterials, has brought brand‐new breakthrough for sensing. Ti 3 C 2 T x popular studied MXene field shows good mechanical, electrical properties, excellent hydrophilicity, extensive modifiability. It will ameliorate sensitive layer electrode sensor, further apply many fields, such as e‐skin flexibility. Herein, preparation technologies, antioxidant methods, summarized. design MXene‐based microstructures introduced, including hydrogels, aerogels, foam, fabrics, composite nanofibers. mechanisms broached, piezoresistive, capacitive, piezoelectric, triboelectric, potentiometric transduction mechanism. Moreover, integration multiple devices reviewed. Finally, chance challenge improved by smart materials future Internet Things prospected.

Language: Английский

Citations

174

Improving stability of MXenes DOI
Jizhou Jiang,

Saishuai Bai,

Jing Zou

et al.

Nano Research, Journal Year: 2022, Volume and Issue: 15(7), P. 6551 - 6567

Published: May 19, 2022

Language: Английский

Citations

170

Ultrastretchable, Self-Healing Conductive Hydrogel-Based Triboelectric Nanogenerators for Human–Computer Interaction DOI
Hao Zhang, Dongzhi Zhang,

Zihu Wang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(4), P. 5128 - 5138

Published: Jan. 19, 2023

The rapid development of wearable electronic devices and virtual reality technology has revived interest in flexible sensing control devices. Here, we report an ionic hydrogel (PTSM) prepared from polypropylene amine (PAM), tannic acid (TA), sodium alginate (SA), MXene. Based on the multiple weak H-bonds, this exhibits excellent stretchability (strain >4600%), adhesion, self-healing. introduction MXene nanosheets endows sensor with a high gauge factor (GF) 6.6. Meanwhile, it also enables triboelectric nanogenerators (PTSM-TENGs) fabricated silicone rubber-encapsulated hydrogels to have energy harvesting efficiency, instantaneous output power density 54.24 mW/m2. We build glove-based human-computer interaction (HMI) system using PTSM-TENGs. multidimensional signal features PTSM-TENG are extracted analyzed by HMI system, functions gesture visualization robot hand realized. In addition, signals can be used for object recognition help machine learning techniques. glove based achieves classification five objects through contact, accuracy rate 98.7%. Therefore, strain sensors broad application prospects man-machine interface, intelligent systems, auxiliary other fields due their stretchable self-healing performance.

Language: Английский

Citations

170

Flexible and highly‐sensitive pressure sensor based on controllably oxidized MXene DOI Creative Commons

Yanan Ma,

Yongfa Cheng, Jian Wang

et al.

InfoMat, Journal Year: 2022, Volume and Issue: 4(9)

Published: June 1, 2022

Abstract Conductive Ti 3 C 2 T x MXenes have been widely investigated for the construction of flexible and highly‐sensitive pressure sensors. Although inevitable oxidation solution‐processed MXene has recognized, effect irreversible on its electrical conductivity sensing properties is yet to be understood. Herein, we construct a degradable piezoresistive sensor by coating flakes with different degrees in situ onto paper substrates using dipping‐drying method. In can tune intrinsic resistance expand interlayer distance nanosheets. The partially oxidized MXene‐based exhibits high sensitivity 28.43 kPa −1 , which greater than those pristine MXene, over‐oxidized state‐of‐the‐art paper‐based Additionally, these sensors exhibit short response time 98.3 ms, good durability over 5000 measurement cycles, low force detection limit 0.8 Pa. Moreover, elements are easily degraded environmentally friendly. shows promise practical applications tracking body movements, sports coaching, remote health monitoring, human–computer interactions. image

Language: Английский

Citations

141