Journal of Materials Chemistry A
·
2025
·
IF 9.5
Lin Chen,Yirou Du,Yuhui Xie,Guowei Jia,Yuanzhi Zhu,Dong Feng,Yang Meng,Yi Mei,Delong Xie
Semi-solid polymer electrolytes (SPEs) play a pivotal role in the development of high-performance sodium-ion batteries (SIBs) by providing benefits such as enhanced safety, flexibility, and high ionic conductivity. However, traditional SPEs face challenges including poor mechanical strength, limited ionic conductivity, and insufficient electrochemical stability. Furthermore, safety concerns arising from flammability and dendrite growth significantly limit their practical applications. In this study, a novel quasi-solid electrolyte (QSE) is developed by incorporating MXene nanosheets into a PVDF-HFP matrix through UV-initiated in-situ polymerization of PEGDA monomers, forming a 3D interconnected MXene-P(PEGDA)-PVDF-HFP composite structure. The integration of MXene enhances both ionic conductivity and Na+ mobility, while simultaneously improving the electrolyte’s flame retardancy and thermal stability. The QSE-1.5M (with 1.5 wt% MXene) demonstrates an ionic conductivity of 1.01 × 10-3 S cm-1 at 30 °C, and the NVP||QSE-1.5M||Na half-cell exhibits a high initial discharge capacity of 105.5 mAh g⁻1 at 2C, with 90.1% capacity retention after 2500 cycles and an average Coulombic efficiency exceeding 99%. The full cell configuration, NVP||QSE-1.5M||HC, delivers stable cycling performance for over 3000 cycles at 3C, maintaining a capacity retention of 84.5%, with a reversible capacity of approximately 100 mAh g⁻1 at 10C. Moreover, QSE-1.5M exhibits superior thermal stability with a high decomposition temperature and a reduced heat release rate. The combustion test further highlights its self-extinguishing capability within 0.01 s, confirming excellent flame retardancy. These improvements, coupled with effective dendrite suppression, position QSE-1.5M as a promising candidate for high-safety, long-cycle-life SIBs. This work demonstrates the potential of MXene-enhanced PEGDA-based QSEs in advancing both the performance and safety of SIBs, paving the way for more efficient and secure energy storage systems.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Xinru Zhang,Yijie Wang,Lei Zhang,Xiaohai Zhang,Bao Hao,Xiaorui Liang,Helei Dong,Yongqiang Qin,Qiulin Tan
The real-time and accurate detection of ammonia is critical for food freshness testing, agricultural monitoring, and respiratory health diagnostics. Recently, flexible gas sensors have garnered attention owing to their potential for integration into smart wearable electronics and display devices. However, the development of high-performance, low-power, and stable devices remains challenging. In this study, a chemoresistive sensor based on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/MXene composites is designed, wherein the application of a genetic algorithm-optimized back propagation neural network to compensate for humidity leads to a significantly enhanced detection accuracy. Notably, the use of a genetic algorithm-optimized back propagation neural network reduces the detection error from 8.06 % to 1.3 % in the presence of 50 ppm NH 3 . A wireless Bluetooth monitoring system is integrated to enable real-time data transmission and remote monitoring. This sensor detects ammonia within the range of 0.6–1000 ppm, demonstrating an excellent stability, selectivity, and flexibility, thereby confirming the synergistic effects between PEDOT:PSS and MXene. Importantly, in application tests, the developed system reliably assesses meat spoilage and farm ventilation levels, indicating its high applicability and reliability. Successful human breath tests also open new possibilities for the application of this sensor in respiratory health monitoring. Ultimately, this study offers a convenient and efficient approach for food quality assurance, disease diagnosis, and environmental monitoring.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Xi Chen,Yuqi Chen,Bowen Xu,Zhaoyang Li,Wei Li,Haoran Cheng
The development of multifunctional electromagnetic wave absorbing (EWA) materials is essential for mitigating electromagnetic interference and noise pollution in communication base stations and electronic devices. Herein, a semi-open honeycomb-structured Ni flower/reduced graphene oxide (RGO)/Ti 3 C 2 T x MXene-melamine foam (MF) composite was successfully fabricated via electrostatic self-assembly followed by hydrazine vapor reduction, exhibiting efficient microwave absorption and multifunctional integration. Interestingly, the Ni flower/RGO/MXene-MF demonstrates exceptional microwave absorption properties, achieving a remarkable minimum reflection loss of −63.6 dB and an effective absorption bandwidth (EAB) of 7.04 GHz. The outstanding performance is attributed to enhanced impedance matching, synergistic dielectric and magnetic losses, dipole and interfacial polarization effects, and the unique semi-open honeycomb-like 3D dielectric/magnetic network. In addition, Ni flower/RGO/MXene-MF integrates microwave absorption, sound absorption, flame retardancy, and hydrophobicity, providing valuable insights for the design of next-generation multifunctional EWA materials.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Yiming Wang,Jin Chen,Jianye Shi,Jing Zhang,Yuzhao Ma,Xiaofeng Yang,Yanjun Li
The integration of microscopic material designs and macroscopic structural layouts offers unlimited potential for developing advanced electromagnetic wave (EMW) absorbers. Herein, a pyrolysis-based strategy is reported for the hybridization of Ti 3 C 2 T x MXene nanosheets to achieve relaxation processes and high-density magnetic coupling at the nanoscale. The stratified structure of Ti 3 C 2 T x /Fe-MOF considerably amplifies the active contact region with electromagnetic radiation, thereby inducing numerous reflection/scattering phenomena. Through pyrolytic transformation, derived nanoparticles including Fe, C, Fe 3 O 4 , and TiO 2 establish continuous metal–carbon and carbon-oxide interfaces below 50 nm. Consequently, the heterogeneous interfaces formed between these components establish a harmonious electromagnetic coupling network, where interfacial polarization from numerous heterojunctions promotes charge accumulation and relaxation processes, converting electromagnetic energy into thermal energy. Remarkably, findings indicate that this composite material demonstrates a minimum reflection loss (RL min ) of −47.05 dB when the thickness reaches 1.8 mm. Additionally, this investigation broadens the spectrum of design strategies for premium microwave absorption materials through systematic interface engineering and thermally-controlled phase conversion.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2025
·
IF 4.7
Zichun Lu,Runtian Miao,Ning Zhang,Lingke Liu,Minjuan Gao,Xingyu Fan,Yueqin Li
MXene-based conductive hydrogels are promising for flexible electronics. However, due to the oxidation susceptibility of MXene nanosheets and their weak interactions with the hydrogel matrix, fabricating stable, robust, and highly conductive hydrogels for multifunctional sensors remains challenging. In this work, lignosulfonate sodium (LS) is employed as a dispersant to effectively stabilize the oxidative state of Ti3C2Tx MXene. By utilizing a low dosage of the ammonium persulfate (APS) initiator and the heat-insulating property of glycerol, radical polymerization of acrylic acid (AA) monomers is rapidly initiated, enabling the rapid preparation of conductive LS–MXene/polyacrylic acid (PAA) hydrogels within minutes. The as-prepared LS–MXene/PAA hydrogel exhibits outstanding mechanical flexibility, antifreezing capability, high electrical conductivity (0.23 ± 0.004 S/m), strain sensitivity, and photothermal characteristics. Leveraging this hydrogel, a high-performance strain sensor was developed, featuring excellent sensitivity (gauge factor = 3.64), a broad response range (10–700%), and a rapid response time (200 ms), enabling precise monitoring of resistive signals during human body movements. Furthermore, due to MXene’s superior photothermal conversion ability, the LS–MXene/PAA hydrogel demonstrates self-sensing functionality by tracking real-time resistance changes under simulated solar irradiation. Additionally, the flexible LS–MXene/PAA temperature sensor accurately detects temperature variations across a wide range, with thermal sensitivities of −2.27%/°C (10–25 °C), −0.92%/°C (25–60 °C), and −0.26%/°C (60–85 °C). Notably, it achieves a temperature resolution of 0.2 °C in the human body temperature range, making it an effective fever-monitoring tool. These attributes highlight the LS–MXene/PAA hydrogel’s potential for developing dual-function strain and temperature sensors in wearable electronics.
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Wenwu Li,Tingting Xie,Shizhen Gan,Yuanxun Gong,Jiayi Zhang,Qianli Tang,Kai Zhang,Xianjiu Liao
Background Electrochemiluminescence (ECL) biosensors are powerful tools for biomarker detection due to high sensitivity, low background, and programmable signal generation. However, conventional ECL platforms face limitations including reliance on static recognition elements (e.g., antibodies) and susceptibility to denaturation. To address this, we developed a novel β-turn-structured peptide-based ECL biosensor integrating MXene (Ti3C2) nanomaterials with a Ru(dcbpy)32+/AuNPs hybrid. This system targets SERPINE1, a senescence-associated secretory protein and promising early biomarker for lung cancer, leveraging peptide conformational switching for enzyme-free signal amplification. Results The biosensor employs a rationally engineered peptide probe containing: (1) a SERPINE1-specific recognition motif, (2) a central β-turn domain locking the peptide in a catalytically inactive folded state, and (3) a His/Cys-rich tail mimicking peroxidase-like activity. Target binding unfolds the β-turn structure, exposing catalytic residues that accelerate tripropylamine (TPA) oxidation and enhance ECL emission. MXene provides a high-conductivity platform while facilitating efficient peptide immobilization via embedded AuNPs. Under optimized conditions, the sensor achieves ultrasensitive detection of SERPINE1 with a wide linear range (0.05–800 ng/mL), a low detection limit (11.2 pg/mL), and high specificity. It operates without enzymatic amplification and demonstrates excellent reproducibility (RSD = 4.2%) and stability (>85% signal retention after 8 days). Validation in human serum yielded recoveries of 96.3–104.6%. Significance This work introduces the first MXene-assisted ECL biosensor utilizing β-turn peptide conformational switching. The enzyme-free, modular strategy offers clinically adaptable detection of senescence biomarkers for early lung cancer diagnosis. By integrating molecular recognition, structural dynamics, and nanomaterial-enhanced signal transduction, this platform advances programmable biosensing and can be extended to other disease-related targets through peptide redesign, showing broad potential in precision diagnostics.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Electronic Materials
·
2025
·
IF 4.7
Yu-Han Wang,Wen-Hao Geng,Yue-Xin Wang,Ze-Long Bao,Xuan-Chen Liu,Jing-Yi Feng,Wen-Yi Sun,Wei-Wei Cao,Hong-Zhang Geng
Motivated by the advancement of 5G communication technology, electronic devices encounter the challenge of performance fluctuations when exposed to multiband electromagnetic radiation and subjected to temperature variations. Aiming at the problem of limited performance of single-component materials, this paper proposes a design strategy for synergistically enhanced composite films. Through the collaborative action of multiple components and modulation of multidimensional architectures, the performance limitations of functional materials are overcome. Caffeic acid (CA) is employed to modify the surface of multiwalled carbon nanotubes (MWCNTs), and a three-dimensional interconnected conductive network is assembled with MXene nanosheets. Through the hydrogen-bond interfacial strengthening effect, combined with aramid nanofibers (ANF) as the matrix, CA-MWCNTs/MXene-ANF composite films are prepared. This composite film retains excellent mechanical properties with a tensile strength of 49.5 MPa and an elongation at break of 6.4%, exhibits an electromagnetic shielding effectiveness of 46 dB in the X-band, and possess a rapid electrothermal response capability, achieving a temperature increase from room temperature (25 °C) to 169 °C within 10 s when powered by a low voltage of 3 V. It overcomes the performance limitations resulting from the nonuniform dispersion of conventional fillers and poor interfacial adhesion. These advantages endow it with significant potential in diverse fields such as smart wearables, aerospace engineering, flexible electronics, and medical applications.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Chao Zhao,Jiayi Zhu,Xingye Ma,Jiaqi Sun,Ning Wang,Xi Chen,Xiaohan Chen,Yihao Wang,Chuanquan Wang,Xinyue Jing
Rapid and accurate pathogen detection is critical for optimizing clinical decision-making within precision medicine frameworks, specifically for identifying Staphylococcus aureus (S. aureus) in wound infections. Most of conventional detection methods suffer from procedural complexity, protracted analysis times, and insufficient sensitivity, thereby constraining their clinical deployment. In this work, an optical fiber surface plasmon resonance (SPR) sensor enhanced by Ti 3 C 2 T x MXene was developed for detecting S. aureus , biofunctionalized with goat anti-human immunoglobulin G (IgG). The optimal thickness of Ti 3 C 2 T x MXene layer, determined to be approximately 94 nm based on maximizing figure of merit (FOM) of 17.88 RIU −1 , yielded high sensitivity and low full width at half maximum (FWHM). By monitoring SPR wavelength shifts in the transmission spectra, the sensor was employed to detect S. aureus with a low limit of detection (LOD) of 1.14 CFU/mL and a high sensitivity of 3.063 nm/log (CFU/mL). It exhibited excellent linearity across the concentration range of 10 2 –10 8 CFU/mL, alongside high stability and selectivity. Validation using S. aureus -infected wound tissue from diabetic murine models exhibited a precision exceeding 97 %. This technology represents a promising avenue for developing next-generation, high-performance biosensing platforms with significant translational potential in precision medicine diagnostics.
✓ 已验证
产品关联
DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Yufen Kong,Hongdan Wu,Zhihui Zhou,Xianyuan Fan,Ming Li
To address the long-standing trade-off between flux and selectivity, as well as the structural instability of conventional nanofiltration (NF) membranes, this study proposes a novel intercalation strategy for constructing two-dimensional laminar NF membranes based on MXene for efficient dye/salt separation. Spherical Fe 3 O 4 nanoparticles were functionalized with amino groups using 3-aminopropyltriethoxysilane (APTES) to impart positive surface charges, and subsequently assembled onto hydrophilic MXene (Ti 3 C 2 T x ) nanosheets via electrostatic self-assembly, forming a structurally stable MXene/NH 2 -Fe 3 O 4 composite membrane. The surface functionalization of Fe 3 O 4 plays a critical role in regulating the interlayer structure of MXene, thereby enhancing membrane stability and selective transport performance. At a mass ratio of MXene to NH 2 -Fe 3 O 4 of 1:6, the membrane exhibited a pure water flux of 136.6 L/(m 2 ·h) and rejection rates of up to 99.9 % for Congo Red (CR) and Evans Blue (EB). In contrast, the rejection rates for NaCl, MgSO 4 , and Na 2 SO 4 were 7.0 %, 15.4 %, and 26.4 %, respectively. In mixed dye/salt systems, the membrane exhibited excellent selectivity, with separation factors of 839 for CR/NaCl, 704 for CR/MgSO 4 , and 566 for CR/Na 2 SO 4 , attributed to synergistic contributions of size exclusion, electrostatic repulsion, and the Donnan exclusion effect. Furthermore, the composite membrane demonstrated outstanding dye removal efficiency, acceptable salt rejection, and robust structural integrity under prolonged operation, wide pH variations, and challenging conditions involving organic foulants and surfactants, offering a practical strategy for developing advanced NF membranes for complex wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS & DESIGN
·
2025
·
IF 7.9
Ruofeng Yin,Enoch Obeng,Zhixing Li,Akmal Ergashev,Wei Wang,Rongbing Chen,Wei Wu,Da Sun,Qingqing Yao,Wencan Wu,Yunzhong Zhan
Drug-resistant bacterial wound infections, especially those caused by methicillin-resistant Staphylococcus aureus (MRSA), pose a critical clinical challenge with limited effective therapeutic options. Here, we report a photothermally responsive nanoplatform, (ZWMx), engineered via hydrothermal synthesis to integrate efficient photothermal conversion, reactive oxygen species generation, and bacterial membrane disruption. The composite leverages the broad absorption in the near infrared region and excellent electrical conductivity of tungsten carbide MXene to overcome the photoinstability of ZnO, achieving a photothermal conversion efficiency of approximately 29.78 % and strong catalytic activity through reactive oxygen species. Upon irradiation at 808 nm, ZWMx rapidly eliminates over 90 % of MRSA in vitro within five minutes and disrupts established biofilms, indicating a synergistic and multifaceted bactericidal mechanism. In vivo , ZWMx promotes near-complete healing of MRSA-infected wounds within twelve days, with minimal thermal damage to surrounding tissues, high biocompatibility, and increased expression of vascular endothelial growth factor receptor one, suggesting enhanced angiogenesis. These findings establish a light-responsive therapeutic strategy for the targeted elimination of drug-resistant infections and effective stimulation of wound repair, providing a promising alternative to conventional antibiotic therapies.
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Mingze Jiao,Jia Chen,Lulu Yang,Qinyuan Hong,Yiqi Feng,Wenjun Huang,Bing Pei,Qianxuan Zhang,Qingyan Fu,Zan Qu,Naiqiang Yan,Haomiao Xu
Accurate detection of trace atmospheric mercury is critical for toxicological assessment and environmental protection. However, achieving parts per billion-level sensitivity with high selectivity between gaseous elemental mercury (Hg0) and oxidized mercury (Hg2+) remains a significant challenge. Here, we present a novel dual-channel enrichment trap system that selectively captures Hg0 by using a layered Au-MXene (Ti3C2Tx) composite as the sorption trap. This composite demonstrates exceptional selectivity for Hg0, with a selectivity ratio of up to 76.7 over Hg2+, and achieves 99.7% ± 0.3% (n = 3) sorption efficiency for ppb-level Hg0 within 30 min at room temperature. Complete desorption is achieved in just 90 s at 300 °C, demonstrating a response time of 45 s for Hg0 detection through the dual-electrothermal Hg0 channel. The Au–Ti3C2Tx preconcentration cartridge exhibits excellent moisture resistance, high-temperature stability, and long-term durability. Density functional theory (DFT) calculations reveal that the built-in electric field at the Au–Ti3C2Tx interface accelerates electron transfer, reducing preconcentration and regeneration times. This technology integrates seamlessly with the cold vapor atomic absorption spectrophotometer (CVAAS) method to form a mercury dual-channel continuous emission measurement system (Hg DCEMS), ensuring highly selective and precise trace Hg0 detection. This advancement provides a device for accurately measuring the Hg0 concentration, enabling better mercury pollution control.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NMR IN BIOMEDICINE
·
2025
·Vol. 38
·期 9
·e70116
·
IF 2.7
Fei-Xiang Hu,Deng-Deng Liu,Xiao-Wen Ma,Pu-Yeh Wu,Wei-Jun Peng,Dan Wang,Tong Tong
This study aims to design and evaluate a two-dimensional Ti 3 C 2 -MXene contrast agent, codoped with iron and manganese, with the aim of achieving T 1 /T 2 dual-mode magnetic resonance imaging contrast, and to investigate its effect on Chemical Exchange Saturation Transfer (CEST) contrast agents. Single-layer Ti 3 C 2 was synthesized via the HCL/LiF etching technique, with the flake size subsequently tailored and the hydroxylated surface modified through a hydrothermal process. Fe 3 O 4 nanoparticles and MnO 2 nanosheets were integrated onto the two-dimensional Ti 3 C 2 -MXene surface using an in situ doping approach, and the final modification was achieved with carboxymethyl chitosan. Various characterization techniques were employed to assess the physical and chemical properties of the probe, which were then combined with a CEST contrast agent to investigate the mechanisms of multimodal magnetic resonance imaging and in vitro photothermal effects. Upon integrating the multi-modal molecular probe with Ioversol for imaging purposes, at a magnetic field strength of B 1 = 1.25 μT and with a molecular probe concentration of 0.5 mg/mL, the CEST signal from Ioversol is almost entirely suppressed. This allows for the successful identification of a distinct concentration range where both contrast agents can coexist. In vitro photothermal studies on MXene codoped with iron and manganese have shown that the composite molecular probe exhibits excellent photothermal efficiency. The method combining complex nanoprobes with CEST contrast agents successfully achieved simultaneous imaging of both contrast agents. In vitro MRI experiments successfully obtained distinguishable concentration ranges for both, with changes in CEST signals reflecting the concentration variations of the complex molecular probes, which also exhibit good photothermal therapy (PTT) capabilities.
✓ 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）