Advanced Healthcare Materials
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2025
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IF 9.6
Qianyu Guo,Miaomiao Zhang,Jinyao Zheng,Zongjia Li,Yuanhao Zhang,Ying Chen,Yu Chen,Xiue Jiang,Jilin Tang
Chronic wounds infected with drug-resistant bacteria present a formidable clinical challenge, exacerbated by antibiotic overuse that severely compromises healing. Herein, a multifunctional therapeutic hydrogel wound dressing is developed to address these challenges. This advanced nanocomposite hydrogel incorporates cerium dioxide-doped MXene nanosheets (MXene@CeO 2 ) within a glycidyl methacrylate-modified gelatin (GMA-Gelatin) matrix and crosslinked into a hydrogel under UV irradiation (GMAG-GEL), forming a near-infrared (NIR)-responsive material (MXene@CeO 2 /GMAG-GEL). This incorporation enhances the mechanical strength of the hydrogel and creates a protective microenvironment for wound repair. In the acidic environment of bacterial infections, MXene@CeO 2 /GMAG-GEL facilitates the electrostatic capture of bacteria. Synergizing with its photothermal capability, it exhibits exceptional antibacterial activity, effectively killing drug-resistant bacteria and disrupting bacterial biofilms. After eradicating the infection, MXene@CeO 2 /GMAG-GEL further alleviates oxidative stress, promotes cell migration and angiogenesis, and induces macrophage polarization toward an anti-inflammatory phenotype. In vivo studies confirmed MXene@CeO 2 /GMAG-GEL significantly accelerates wound closure and tissue regeneration. This work overcomes the key challenges of antibiotic resistance, persistent inflammation, and impaired tissue regeneration, presents a comprehensive therapeutic strategy for drug-resistant bacterial wound infections through a single multifunctional platform.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Jiawei Xie,Yaoying Li,Jia Li,Zhiping Wu,Yaoxuan Huang,Haifu Huang,Xianqing Liang,Guangxu Li,Peilin Qing,Dan Huang,Haizhen Liu,Zhiqiang Lan,Wenzheng Zhou
Lithium-sulfur (Li-S) batteries have emerged as one of the most promising rechargeable energy storage systems, owing to sulfur’s high theoretical specific capacity (1675 mAh g -1 ) and the battery’s ultrahigh energy density (2600 Wh kg -1 ). Nevertheless, their commercialization remains critically hindered by poor cycling durability, primarily stemming from two challenges: the shuttle effect of lithium polysulfides (LiPSs) between electrodes and the substantial volume expansion/contraction of the sulfur cathode during charge-discharge cycles. To address this issue, multifunctional composite material, MXene/CNT-1Zr, was prepared by a hydrothermal method as host material for sulfur in Li-S batteries. The enhancement of the electrical conductivity of sulfur is facilitated by the carbon nanotubes (CNTs), which also disperse and hold MXene to form a 3D framework. The in-situ loaded nano-ZrO 2 by hydrothermal method exhibits robust catalytic activity of the host material, facilitates the host to have a high-intensity chemisorption capacity for polysulfides, which effectively inhibits the shuttling effect of sulfur, thereby improving the cycling stability of batteries. Due to the multifunctional synergistic effect of framework structure, good conductivity, high specific surface area, strong adsorption ability for polysulfides, and strong catalytic activity of ZrO 2 nanoparticles, S@MXene/CNT-1Zr electrode material exhibited excellent cycling stability. The initial discharge capacity of S@MXene/CNT-1Zr at 1.0 C current was 904.8 mAh g -1 when the areal sulfur loading is 2.0 mg cm -2 , and the residual discharge capacity was 381.1 mAh g -1 after 1000 cycles, with a capacity retention rate of 43.6% and a decay rate of only 0.057% per cycle. The multifunctional MXene/CNT-1Zr composite developed in this study shows potential for use as cathode material in Li-S batteries, offering effective solutions to the challenges encountered by these batteries.
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APPLIED SURFACE SCIENCE
·
2025
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IF 6.9
Zengkun You,Kai Ou,Tian Tang,Yajing Cui,Wenting Zhang,Yuxiang Ni,Yudong Xia,Hongyan Wang
Under the background of sustainable energy development, the development of efficient, stable and low-cost electrocatalysts to improve electrochemical performance has become a research hotspot in the field of energy conversion. In this work, upright, one-fold and oblique Ni nanorods were designed and grown on Ti 3 C 2 T x MXene nanosheets via glancing angle deposition technique of physical vapor deposition. For the hydrogen evolution reaction, the composite Ti 3 C 2 T x @upright exhibited a low overpotential of only 131 mV@10 mA/cm 2 , along with excellent 24 h stability in 1 M KOH. Its excellent performance is mainly attributed to the high porosity of the upright nanorods, the fast electron transport channels provided by Ti 3 C 2 T x MXene, and the stable interface structure. This research provides new ideas for constructing high-performance electrocatalytic catalysts and achieving efficient electrocatalytic conversion in sustainable energy systems.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Xinnan Wang,Tiantian Wang,Xiaozhi Zhang,Shujuan Liu,Qian Ye,Feng Zhou
MXenes possess low interlayer shear stress, high mechanical strength and tunable structure, making them highly effective in enhancing low-friction and wear-resistant properties in lubrication systems. However, their application as oil-based lubricant additive is limited by poor dispersion stability in base oils. In this work, a nanocomposite supramolecular oleogel with three-dimensional network structure was prepared by integrating functionalized MXene with urea-based gelator. The MXene nanosheets were modified by 3-(3,4-dihydroxyphenyl)-2-(3- octadecylureido) propanoic acid (DOPA) and then effectively encapsulated within the supramolecular gel network, significantly reducing agglomeration and ensuring stable dispersion in base oil PAO10 for over five months. The resulting DOPA@MXene oleogel (DOPA@MXene Gel) exhibited good lubrication performance, with the average friction coefficient decreased from 0.168 to 0.102 and the wear volume exhibited an 81.83 % decrease compared to base oil. Additionally, the load-carrying capacity of DOPA@MXene Gel was enhanced to from 50 N to 450 N. These improvements are attributed to the synergistic interaction between DOPA@MXene and the oleogel, which collaboratively form a complex protective film during friction. This study offers an effective strategy for improving the dispersion of MXene-based lubricant additive and achieving superior tribological properties.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Sizhi Ding,Hua Ning,Weitao Shi,Ruojiang Liu,Ziqi Liu,Jiakun Yang,Yuanxin Tan,Yi Fan,Haizhen Liu,Jin Guo,Zhiqiang Lan
In this study, a three-dimensional honeycomb Fe/N-MXene composite was prepared by heating the mixture of the prefabricated honeycomb N-MXene composite with Fe 4 [Fe(CN) 6 ] 3 (referred to as PB tube). Subsequently, it was introduced to enhance the hydrogen storage properties of MgH 2 through ball milling. Experimental results demonstrate that the initial dehydrogenation temperature of the MgH 2 +Fe/N-MXene composite system is 198 °C, which is significantly lower than that of pure MgH 2 . Additionally, the absorption/dehydrogenation activation energies of MgH 2 +Fe/N-MXene composites were reduced by 50.9 kJ mol −1 and 68.1 kJ mol −1 , respectively, compared with MgH 2 . After 20 min at 100 °C, 5.14 wt% H 2 is absorbed. Mechanism analysis reveals that the presence of Fe prolongs the length of the Mg–H bond and weakens its bond energy. The unique honeycomb structure of N-MXene provides more nucleation sites for hydrogen atoms for adsorption and storage. Under the catalytic action of Fe/N-MXene composite, the hydrogen storage capacity of MgH 2 is significantly improved.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Mohamedazeem M. Mohideen,P. Chinnappan Santhosh,Adiyodi Veettil Radhamani,Ce Wang,Ping Hu,Balachandran Subramanian,Seeram Ramakrishna,Yong Liu
Designing efficient, sustainable, and cost–effective electrocatalysts for oxygen reduction (ORR) and oxygen evolution (OER) reactions is essential for advancing fuel cells and metal–air batteries as clean energy technologies. Despite significant progress in developing non–precious electrocatalysts, the nature of their active sites and interface chemistry remains unclear due to the complexity of the reaction mechanisms. To address these challenges, this study presents a Co–MOF/MXene hybrid electrocatalyst engineered to optimize synergy between dual–metal active sites, achieving high bifunctional activity for both ORR and OER. Notably, our comparative analysis provides clear experimental evidence that sulfur doping disrupts this balance in the reported catalyst. Structural analysis reveals that sulfur substitutes for carbon atoms within the framework, altering the local coordination environment and reducing catalytic performance, contrary to the common assumption that heteroatom doping is universally beneficial. The sulfur–free Co–MOF/MX–1 catalyst exhibits a high ORR onset/half–wave potential of 0.90/0.81 V (vs. RHE), low hydrogen peroxide yield (2.95 %), 90 % current retention, and an ultralow bifunctional gap (ΔE ORR–OER = 0.78 V). We attribute this superior performance to the interplay of Co–N₃–Ti₃C and Ti N active sites, which synergistically optimize oxygen adsorption and electron transfer, aligning with the metaphorical Janus principle of functional balance. This work challenges prevailing views on heteroatom doping and establishes new design principles for non–precious bifunctional electrocatalysts in fuel cells and metal–batteries.
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COMPOSITES SCIENCE AND TECHNOLOGY
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2025
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IF 9.8
Shanshan Chen,Jianbin Chen,Zhaoqing Lu,Rui Cheng,Li Hua,Dinggen Hu,Wenbo Wang,Nana Wang,Zhijian Li
Developing novel transition metal carbides/nitrides (MXene)-based electromagnetic interference (EMI) shielding composites with excellent mechanical properties and oxidation resistance is urgently demanded but remains hugely challenging thanks to the increasingly sophisticated application scenarios. Herein, we demonstrated an interfacial engineering and sequential assembling strategy to synergistically address the above problems. Carbon nanotubes (CNT) were utilized to assist the splitting preparation of aramid nanofibers (ANF) and chemical cross-linking to construct a substrate layer that served to provide mechanical properties. Polydopamine (PDA) was modified onto MXene surface (PMXene) by in situ polymerization and binding, generating an adhesive layer to prevent oxygen penetration effectively. The resultant Janus-structured PMXene-CNT/ANF films exhibited outstanding mechanical performances including high tensile strength (366.8 MPa) and toughness (69.3 MJ m −3 ), superb electrical conductivity (3548.8 S cm −1 ), impressive EMI shielding effectiveness (EMI SE 55.5 dB) and EMI SE/t (14128.2 dB cm −1 ), as well as excellent oxidation stability. Furthermore, the flexible films displayed distinguished Joule-heating performances and fast and sensitive temperature response at external voltage. Therefore, such composite films with excellent mechanical properties and environmental stability have great practical value in flexible electronics and military electronic equipment for EMI shielding, and the polar-exploration equipment for anti-icing and de-icing.
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CRYSTENGCOMM
·
2025
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IF 2.6
Lei Chen,Rui Xu,Zhi Yang,Fuyu Chang,Lu Yang,Yoonseop Byun,Eunsoo Song,Eungyeong Park,Lihui Liu,Young Mee Jung
The two-dimensional (2D) layered structure of MXene provides a large specific surface area, making it an ideal platform for optimizing geometric configurations in surface-enhanced Raman scattering (SERS) applications. In this study, we developed a novel ternary core-shell nanostructure, Ag@Cu2O-MXene, in which Ag@Cu2O core-shell nanoparticles (NPs) are uniformly anchored onto 2D Ti3C2Tx MXene nanosheets. The Ag NPs exhibit strong localized surface plasmon resonance, while the narrow bandgap and high electron mobility of Cu2O shell promote efficient charge transfer. Importantly, plasmonic coupling between the Ag core and the MXene substrate further enhances plasmon absorption, resulting in a substantial increase in SERS activity and enabling highly sensitive molecular detection. Using this composite, we achieved an ultra-low detection limit of 10–9 M for methylene blue. MXene substrate further facilitates rapid electron transfer from the Ag core to the the Cu2O shell, while its surface defects contribute additional charge carriers to Cu₂O, enhancing the utilization of photogenerated electron. Notably, the SERS enhancement was positively correlated with the thickness of Cu2O shell, highlighting the tunable nature of the Ag@Cu2O-MXene core-shell nanostructure.
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CARBON
·
2024
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IF 10.5
Zhengsen Wang,Dezhi Jiao,Li Cheng,Lanyue Cui,Peimin Hou,Chengbao Liu
Wear microcracks and corrosion are inescapable for marine equipment thus resulting in operational issues, lifespan reduction and even catastrophic failures. Despite significant research has been conducted in anti-wear and corrosion resistant coatings, simultaneous achieving wear-resistant, anticorrosive and visual monitoring of wear damage and corrosion pits remains a significant challenge. Herein, we propose a novel strategy for in-situ and real-time visualization of wear cracks and interfacial corrosion in lubricant coating by utilizing MXene@Rhodamine B (MXene@RhB) fluorescent probes. Through strategic engineering of fluorophores and polyurea networks, conspicuous fluorescence intensification is observed at wear and damaged area, not only immediately upon occurrence but also accompanied with crack propagation. Besides, the precise ion recognition and coordination property of RhB with Fe 3+ brings about distinct fluorescence quenching, enabling visual monitoring of coating wear degradation and interfacial corrosion failure. Moreover, the imbedding of layered MXene significantly improved the tribological performance of composite coating with reduced friction and wear rate. Furthermore, electrochemical investigations revealed that the electrolytes intrusion and steel corrosion reactivity were greatly inhibited through forming numerous shielding layers. The ingenious integration of fluorescent motifs and lubricating units contributes to the development of novel protective coatings, providing reliable strategy for coating lubrication and real-time wear monitoring.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Lihong Zhang,Chunlin Yang,Chaowen Chen,Chunhui Zhou,Meiqing Li,Ziyi Cui,Pengqi Yang,Haiqun Cao,Zhengyan Wu
Foliar off-target loss and premature exposure are the two major challenges in traditional pesticide applications. The development of intelligent systems for precise pesticide delivery represents a significant advancement in enhancing pesticide efficiency while minimizing environmental pollution. Here, a sandwich-structured MXene-based nano-platform with near-infrared (NIR) responsiveness (EMPP/CD@PEG) was successfully constructed. The fabrication process involved anchoring polydopamine-functionalized Prussian blue (PB@PDA) onto MXene nanosheets, loading emamectin benzoate (EB), and subsequently modifying the nanosheets with a temperature-sensitive cyclodextrin@polyethylene glycol (CD@PEG) hydrogel. Upon NIR irradiation, PB@PDA-modified MXene functioned as a photothermal agent, achieving a photothermal conversion efficiency of 47.5 %. This effect triggered the breakdown of the CD@PEG gel network, resulting in and the release of EB. The enhanced photothermal performance of PB@PDA-modified MXene was primarily attributed to the excellent light absorption properties of MXene. Additionally, the deposition of PB@PDA nanoparticles on the MXene surface increased its roughness, leading to multiple scattering and refraction of incident light, further improving photothermal efficiency. More importantly, the LC 50 values of EMPP/CD@PEG against Spodoptera frugiperda , Corn borer , and Mythimna separata were 0.0806 mg/L, 0.1250 mg/L, and 0.1044 mg/L, respectively, demonstrating higher insecticidal activity compared to commercial suspension concentrates. Moreover, EMPP/CD@PEG exhibited superior foliar affinity, photostability, and safety for maize plants and HK-2 cells, attributed to the encapsulation and stabilization effects of the nanocarriers. As a result, this work offers valuable insights into the development of sustainable and eco-friendly pesticide nano-formulations in agriculture production.
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FOOD CHEMISTRY
·
2025
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IF 9.8
Junxian Yang,Peng Shan,Fangfei Sun,Liping Sun,Kun Wang,Yongliang Zhuang,Hui Li,Lincai Peng
The application of gelatin (GEL)-based films in food packaging is limited by poor mechanical strength, high water sensitivity, low gas barrier properties, and lack of antibacterial activity. In this study, dialdehyde starch (DS) and AgNPs-immobilized MXene nanosheets (AgNPs@MXene) were incorporated into GEL to fabricate active packaging films. The strong interfacial interactions and compact structure significantly enhanced the films' physicochemical properties. Compared with pure GEL, the GEL/DS/AgNPs@MXene-5 film showed a 96.33 % increase in tensile strength, a 391.59 % increase in elongation at break, and reductions of 62.33 %, 71.62 %, and 71.13 % in water solubility, water vapor, and oxygen permeability, respectively. Additionally, it exhibited >90 % antibacterial activity against S. aureus and E. coli , attributed to the synergistic effect of AgNPs and photothermal MXene, while maintaining good biosafety and biodegradability. Packaging tests confirmed its effectiveness in preserving the post-harvest quality of Tricholoma matsutake and maintaining pork freshness, demonstrating great potential for active food packaging.
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OPTICAL MATERIALS
·
2025
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IF 4.2
Zongbin Liu,Xiaojiao Yu,Kai Wang,Yuchen Wei,Jian Zhang,Jinfen Niu
Photocatalytic technology has received a great deal of attention due to its high efficiency and environmentally friendly properties in the treatment of wastewater. MXene, a rapidly expanding family of two-dimensional materials, is widely used in various fields due to its unique layered structure, large specific surface area, excellent hydrophilicity and strong electrochemical performance. In this paper, a simple hydrothermal method has been used to synthesize Cu 2 O-MXene(Ti 3 C 2 ) photocatalysts. The successful introduction of Ti 3 C 2 MXene reduced the surface transfer resistance to promote electron transfer, effectively inhibited electron-hole complexation and increased the specific surface area of the catalyst. The prepared samples have excellent photocatalytic properties due to the above-mentioned advantages. Efficient degradation of antibiotics was achieved with the maximum degradation rate of sulfamethazine (SM2) by M 2 -Cu 2 O reaching 85.7 % in 160 min. It was experimentally confirmed that • O 2 ‐ and h + played the major roles in the degradation process, and possible degradation pathways and photocatalytic mechanisms were proposed in conjunction with HPLC-MS/MS. Finally, the intermediate products were tested for their biotoxicity. This work provides a strategy for the construction of highly catalytically active Cu 2 O-based catalysts.
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危险品化学品经营许可证（带存储）