ACS Nano
·
2022
·
IF 18.027
Dekui Song,Guo Ye,Yan Zhao,Yan Zhang,Xincun Hou,Nan Liu
Muscle fatigue is a common symptom experienced by many people and associated with less maximal force production of fatigued muscle. It is highly desirable to simultaneously and imperceivably diagnose muscle fatigue and restore muscle function using one skin electrode, yet no such electrode has been developed so far. Herein, we report an all-in-one, bioderived, air-permeable, and sweat-stable MXene electrode that can concurrently and comfortably record electromyographic (EMG) signals and achieve electrostimulation and electrothermal therapy for muscle theranostics. Leveraging the structural arrangement of perennial herbs and ion cross-linking of MXene in sweat, MXene-based electrodes (MBE) exhibit high breathability, are ultralightweight (∼0.25 mg/cm3), and have low and stable electrode–skin interfacial impedance at a variety of environments, facilitating the long-term reliable monitoring of electrophysiology. Taken together with electrostimulation and electrothermal therapy at the skin surface, MBE can diagnose muscle fatigue and restore muscle function by stimulating blood circulation. In addition, it can also be used for muscle rehabilitation training and prosthesis control via human–computer interaction. Our all-in-one, bioderived, air-permeable, and sweat-stable MXene electrode has a great potential for daily wearable healthcare of muscle fatigue.
研究领域:
生物医学工程
·
材料科学
·
康复医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Qiang Wang,Shenshen Guan,Ranyun Wu,Liangliang Su,Yalong Yang,Xulai Zhu,Yuxia Hu,Junpeng Zhang,Jia Si,Wei Zeng
The aqueous ammonium ion hybrid supercapacitor (AIHSC) for dual-energy storage mechanisms of bulk intercalation and bulk adsorption has attracted extensive attention from researchers in the field of energy storage. However, AIHSC currently lacks sufficiently effective anode materials with high capacitance and stability. Pre-intercalated MXene electrodes have demonstrated high-capacity advantages in the fields of magnesium and zinc ion energy storage, but there have been no research reports in the field of AIHSC. Here, for the first time, pre-intercalated MXene was used as the anode material for AIHSC, and a high-performance multifunctional AIHSC was constructed by combining it with multi-walled carbon nanotubes-FeFe(CN) 6 cathode. A series of characterizations and theoretical calculations show that pre-intercalated strategies can effectively enhance the electrochemical properties of MXene. As a result, the pre-intercalated MXene anode shows a superior ammonium storage capacitance of 252 F g −1 and a high stability of 6000 cycles. The quasi-solid-state AIHSC also displays the excellent electrochemical performance and can be directly used as a pressure sensor to monitor external pressure changes and human limb movements. This study provides a viable path to the effective development of high-performance multifunctional AIHSCs and their anodes.
研究领域:
材料科学
·
能源存储
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Carbon Energy
·
2024
·
IF 19.5
Zhijian Du,La Li,Guozhen Shen
Thermally chargeable supercapacitors (TCSCs) have offered exceptional energy-converting efficiency for absorbing human epidermal heat and generating and storing electrical energy, which then realize continuous power supply to electronic devices, such as sensors and wearable electronic products, in a wide range of practical significance. Here, we proposed a flexible TCSC by attaching binder-free Ti 3 C 2 T x MXene@PPy electrodes on both ends of the H 3 PO 4 @P(AM-co-AA-co-AYP K + ) hydrogel electrolyte, which exhibits a large thermal power of 35.2 mV K −1 at 50% relative humidity and maximum figure of merit of 2.1. The high performances of the fabricated devices can be attributed to the tunable electrical, thermodynamic, thermoelectric, and mechanical properties of the hydrogel electrolyte by adjusting the acid content and the proportion of zwitterionic compound AYP K + in the hydrogel, and the high photothermal conversion efficiency and electrochemical performance of the electrodes. Moreover, the stable and outstanding thermofvoltage output (∼200 mV) under different time scenarios of the TCSC makes it possible to drive a strain sensor, accomplishing the objectives of a human activity monitor.
研究领域:
材料科学
·
能源技术
·
纳米科技
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 44
·2307609
·
IF 19
Siyu Zhang,Yan Zhu,Yifan Xia,Kangting Liu,Shuhan Li,Biao Yang,Mingyuan Li,Xinrong Zhi,Xin Wang
Anti-counterfeiting and visual optical information encryption/decryption technology have attracted widespread attention in the field of information security. Luminescent encryption technologies still face a huge challenge in external high voltage power supply, complex architecture, and expensive decryption equipment, which hinder their broad applications. Herein, a wearable integrated self-powered electroluminescent (EL) display device (W-ELD) that consists of MXene/Silicone-based triboelectric nanogenerator (MS-TENG) and EL device based on a shared MXene electrode is developed for patterned display and information encryption. The W-ELD features an all-in-one MXene electrode with excellent flexibility and high conductivity of 0.6 kΩ sq −1 , which is shared by both MS-TENG and EL devices. The MS-TENG demonstrates excellent output performances (output power of 0.9 Wm −2 ) and high stability and durability (10 4 cycles), which can directly light up the flexible patterned EL device. More importantly, when dripping conductive electrolyte solution, the W-ELD based on “中國”-patterned MXene electrode can precisely reveal the encryption information through self-powered EL emission for real-time visualized information interaction. Consequently, the all-in-one MXene electrode-based W-ELD that integrates both MS-TENG and EL device demonstrates exceptional patterned EL-based information encryption features, which offers a potential prospect in wearable self-powered optoelectronic devices, flexible displays, and encryption technology.
研究领域:
材料科学
·
电子工程
·
信息安全
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Mengjie Wang,Yang Hong,Wenbin He,Qixiang Zhang,Gengchen Yu,Jia Liu,Chen Chen,Li Wen,Dan-Dan Wu,Yongfa Cheng,Chaofeng Zhang,Yanan Ma,Siliang Wang,Yang Yue
Achieving efficient ion transport in thick electrodes remains a fundamental challenge in electrochemical systems with high energy density, primarily due to prolonged diffusion pathways and poorly integrated architectures. Leveraging the nanoconfinement effect, (sub)nanoscale channels can significantly accelerate ion transport kinetics to maximize electrochemical performance. Inspired by the hierarchical network structure of bamboo membrane, a gradient nanoconfined MXene electrode (GNC-MX) is designed, where multiscale interlayer spacing is coupled with in-plane mesopores that bridge adjacent nanoconfined channels, enabling synergistic vertical and horizontal ion migration. Finite element simulations and density functional theory calculations reveal the synergistic optimization mechanism of ion transport via the gradient nanoconfined channels and in-plane mesopores. Compared to pristine MXene, GNC-MX electrodes exhibit substantially enhanced ion transport kinetics and charge storage performance. To optimize the nanoconfined channels, an in situ deprotonation-reprotonation strategy is introduced to strengthen electrostatic repulsion and weaken hydrogen bonding and van der Waals interactions of the MXene interlayer, enabling quasi-permanent expansion of ion transport channels. Furthermore, a scalable group-welding method is developed to fabricate 400 µm-thick electrodes with an ultrahigh areal capacitance of 20.7 F cm −2 , surpassing current MXene-based electrodes. This work provides a scalable and tunable biomimetic platform for advanced ion nanoconfinement in energy storage systems.
研究领域:
材料科学
·
电化学
·
纳米技术
·
储能
·
计算物理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）