JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2025
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IF 4.7
Wenjie Ma,Ru Jia,Lanlan Dong,Cijun Shuai,Wurikaixi Aiyiti,Chongxian He
Transplant-associated bacterial infections, especially the formation of bacterial biofilms, frequently lead to persistent infections and even transplant failure. Herein, a near-infrared laser-triggered nanosystem with antibacterial and anti-biofilm activities is constructed by loading S-nitrosothiols (RSNO) onto Ti 3 C 2 T x nanosheets, which are then mixed with poly-L-lactic acid (PLLA) powders to prepare porous PLLA/Ti 3 C 2 T x -SNO scaffolds. Especially, the excellent photothermal property of the scaffold is expected not only to eliminate bacterial biofilms but also to trigger RSNO molecules to in situ release nitric oxide (NO) gas under near-infrared laser irradiation. Moreover, the removal of the biofilms facilitates more NO to enter and kill the deep bacteria through nitridation damage, thus realizing the synergistic antibacterial capabilities of photothermal and NO gas therapies. The experimental results showed that the photothermal conversion efficiency of the scaffold reached 39 %. Combining with the in situ NO release, the scaffold presented excellent anti-biofilm and antibacterial activities, with antibacterial rates of 93.6 % and 94.9 % against E. coli and S. aureus , respectively. This work is expected to solve the dilemma of treating bacterial infections in deep tissues, providing reference for the clinical treatment of transplant-associated bacterial infections and even extending to the treatment of other deep refractory infections.
研究领域:
纳米技术
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抗菌治疗
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光热治疗
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生物材料
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传染病
✓ 已验证
产品关联
DOI
高影响因子
Materials Chemistry Frontiers
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2024
·
IF 6
Shaochen Wang,Chenwei Qu,Xin Wang,Daoyong Lin,Tiantian Cao,Guoyong Huang,Shengming Xu,Jianzhong Ye
Molybdenum disulfide (MoS2) has great potential as an anode material for lithium-ion batteries due to its graphite-like layered structure and high specific capacity (669.0 mA h g−1). However, challenges such as volume expansion during lithium storage have impeded its utilization. The combined alteration of MoS2 and MXenes has demonstrated its efficacy as a modification technique. In this study, a green and facile phase engineering strategy has been implemented for the synthesis of MoS2/Ti3C2Tx nanocomposites. Ti3C2Tx was rapidly prepared by the fluorine-free molten salt etching method, and then the MoS2/Ti3C2Tx composite was synthesized by the one-pot method. Fluffy and open petal-like interconnect structures were constructed by combining few-layer MoS2 nanosheets with Ti3C2Tx substrate. The introduction of the substrate material (Ti3C2Tx) provides a uniform growth platform for MoS2 nanosheets, and Ti3C2Tx, acting as the supporting material, imparts enhanced structural stability to the composite. Theoretical calculations indicate that this configuration may result in a reduction of the diffusion energy barrier of Li+ from 0.78 eV to 0.19 eV, as well as an enhanced electron transfer. This composite material exhibits enhanced capacity performance, achieving 460.6 mA h g−1 at 0.1 A g−1 after 100 cycles. This approach offers valuable insights into the synthesis of additional high-performance composite materials.
研究领域:
材料科学
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电化学
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纳米技术
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
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2025
·
IF 9.8
Mengru Liu,Taotao Zhe,Limin Zhu,Fan Li,Kaixuan Ma,Chenyu Xuan,Qinlin Feng,Shaohui Ouyang,Li Wang
The contamination of nitrofurantoin (NFT) antibiotics in the food chain poses significant threats to environmental and public health, emphasizing the urgent need for rapid and portable detection. This study presents an electrochemical sensor based on a 2D/2D van der Waals heterojunction of VS 2 and Ti 3 C 2 T x MXene integrated onto a screen-printed carbon electrode (SPCE). Interfacial engineering of Ti S bonds creates efficient charge transfer pathways and a directional built-in electric field, enhancing charge dynamics and electroreduction efficiency. The VS 2 /Ti 3 C 2 T x MXene-SPCE sensor shows an ultralow detection limit of 4.7 nM, a wide linear range (0.01–400 μM), and high stability with strong resistance to interference. Its practical applicability was validated by successful NFT detection in tap water, lake water, milk, and honey, yielding satisfactory results. This work highlights the catalytic potential of VS 2 / Ti 3 C 2 T x MXene heterojunctions and demonstrates the sensor as a promising tool for environmental monitoring and food safety.
研究领域:
材料科学
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环境科学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Interdisciplinary Materials
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2024
·
IF 24.5
Bin Fan,Weikun Chen,Kaining Li,Qingya Wei,Qian He,Wei Liu,Bigui Zhou,Jun Yuan,Yingping Zou
The shuttle effect of lithium polysulfides (LiPSs) and their sluggish kinetic processes lead to rapid capacity fading and poor cycling stability in lithium–sulfur (Li–S) batteries, limiting their commercial viability. This study proposes a functionalized separator with adsorption and synergistic catalysis ability for Li–S batteries. The modified separator comprises Ti 3 C 2 T x sheets, CoO, and MoO 3 . Experimental and theoretical calculations demonstrate that Ti 3 C 2 T x /CoO/MoO 3 composite not only effectively inhibits the shuttle effect of LiPSs, ensuring efficient utilization of active materials, but also enhances reversibility and reaction kinetics among LiPSs. The full exposure of active sites in the Ti 3 C 2 T x /CoO/MoO 3 composite and the synergistic action of different catalysts enable efficient capture and conversion of LiPSs molecules at the material surface. Besides, the lithium–sulfur batteries with Ti 3 C 2 T x /CoO/MoO 3 @PP separator exhibited only a 0.042% capacity decay per cycle at 0.5 C (800 cycles). Moreover, a high areal capacity of 6.85 mAh cm −2 was achieved at high sulfur loading (7.9 mg cm −2 ) and low electrolyte-to-sulfur ratio (10 μL mg −1 ).
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Yuanhua Xiao,Yang Kong,Xuezhao Wang,Haoran Luo,Gaozhan Yuan,Shiwei Zhang,Aiqing Zhang,Jun Zhou,Yuanyuan Fan,Ling Xin,Anle Wang,Shaoming Fang,Yujie Zheng
The intriguing characteristics of two-dimensional (2D) heterostructures stem from their unique interfaces, which can improve ion storage capability and rate performance. However, there are still challenges in increasing the proportion of heterogeneous interfaces in materials and understanding the complex interaction mechanisms at these interfaces. Here, we have successfully synthesized confined CoSe 2 within the interlayer space of Ti 3 C 2 T x through a simple solvothermal method, resulting in the formation of a superlattice-like heterostructures of CoSe 2 @Ti 3 C 2 T x . Both density functional theory (DFT) calculations and experimental results show that compared with CoSe 2 and Ti 3 C 2 T x , CoSe 2 @Ti 3 C 2 T x can significantly improve adsorption of Na + ions, while maintaining low volume expansion and high Na + ions migration rate. The heterostructure formed by MXene and CoSe 2 is a Schottky heterostructure, and its interfacial charge transfer induces a built-in electric field that promotes rapid ion transport. When CoSe 2 @Ti 3 C 2 T x was used as an anode material, it exhibits a high specific capacity of up to 600.1 mAh/g and an excellent rate performance of 206.3 mAh/g at 20 A/g. By utilizing CoSe 2 @Ti 3 C 2 T x as the anode and activated carbon (AC) as the cathode, the sodium-ion capacitor of CoSe 2 @Ti 3 C 2 T x //AC exhibits excellent energy and power density (125.0 Wh kg −1 and 22.5 kW kg −1 at 300.0 W kg −1 and 37.5 Wh kg −1 , respectively), as well as a long service life (86.3 % capacity retention over 15,300 cycles at 5 A/g), demonstrating its potential for practical applications.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Composites and Hybrid Materials
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2022
·Vol. 5
·期 4
·2988-3001
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IF 11.806
Zhao Xiaoyu,Zhang Yingbing,Hou Yongdan,Zhao Zijian,Gong Yaxin,Wang Yanfei,Wei Huige,Pol Vilas G.
A beneficial strategy for enhancing the electronic conductivity of transition metal chalcogenides (TMCs) as lithium-ion battery anode material is through shortening the charge transfer path between the sulfide particles. However, the combination between the carbon-based matrix and electroactive materials is sometimes weak, which hinders the cycling stability. In this paper, the Ti-based MXene, T 3 C 2 T x , was used as a conductive frame, combined with the ZIF-67-based CoS 2 /C grains yielding Ti 3 C 2 T x /CoS 2 /C composite electrode through one-step and two-step synthesis methods, which displayed significantly enhanced capacity, rate performancem, and cycling stability. The compsoite reached a capacity retention of 82.6% after 100 cycles with a significantly higher capacity of 1020.5 mAh/g at 0.2 A/g current density. After 100 discharge–charge cycles, the Ti 3 C 2 T x /CoS 2 /C composite revealed a low volume expansion of 9.5%, suggesting superior structural integrity and stability with the synergistic effect of both MXene 2D and CoS 2 /C 3D nanostructures. Graphical abstract
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Yu Zhu,Liwei Lin,Man Zhou,Han Li,Yanan Wang,Song Xu,Zhongyu Li
The conversion of greenhouse gas CO 2 into usable high-value-added fuels through photocatalytic reactions is a promising green energy measure. However, the photocatalytic CO 2 reduction reaction faces challenges such as multi-electron transfer and slow mass transfer. Furthermore, most photocatalysts can only absorb ultraviolet light and have insufficient active sites, resulting in a low utilization rate of sunlight. Based on this, we designed a novel layered composite catalyst, where Ti 3 C 2 T x MXene serves as the supporting framework and BiOCl nanosheets are uniformly grown on its surface. Under simulated sunlight, the CH 4 yield is 30.07 μmol·g −1 ·h −1 , with a selectivity of 93.4 %, and it still maintains excellent stability after six photocatalytic cycle experiments. Research data indicates that with the intervention of reducing ethylene glycol, the oxygen vacancy content on Ti 3 C 2 T x /BiOCl is significantly increased. The formation of oxygen vacancies and Schottky heterojunctions not only enhances the charge separation efficiency at the interface but also selectively reduces CO 2 to CH 4 .
研究领域:
环境科学
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材料科学
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化学工程
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Chemosensors
·
2024
·Vol. 12
·期 11
·222
·
IF 3.7
Jinhao Wang,Lijuan Chen,Fan Chen,Xinyang Lu,Xuanye Li,Yu Bao,Wei Wang,Dongxue Han,Li Niu
With the continuous advancement of contemporary medical technology, an increasing number of individuals are inclined towards self-monitoring their physiological health information, specifically focusing on monitoring blood glucose levels. However, as an emerging flexible sensing technique, continuous and non-invasive monitoring of glucose in sweat offers a promising alternative to conventional invasive blood tests for measuring blood glucose levels, reducing the risk of infection associated with blood testing. In this study, we fabricated a flexible and wearable electrochemical enzyme sensor based on a two-dimensional Ti3C2TxMXene nanosheets and coral-like polyaniline (PANI) binary nanocomposite (denoted as Ti3C2Tx/PANI) for continuous, non-invasive, real-time monitoring of sweat glucose. The exceptional conductivity of Ti3C2TxMXene nanosheets, in conjunction with the mutual doping effect facilitated by coral-like PANI, significantly enhances electrical conductivity and specific surface areas of Ti3C2Tx/PANI. Consequently, the fabricated sensor exhibits remarkable sensitivity (25.16 μA·mM−1·cm−2), a low detection limit of glucose (26 μM), and an extensive detection range (0.05 mM ~ 1.0 mM) in sweat. Due to the dense coral-like structure of Ti3C2Tx/PANI binary nanocomposite, a larger effective area is obtained to offer more active sites for enzyme immobilization and enhancing enzymatic catalytic activity. Moreover, the sensor demonstrates exceptional mechanical performance, enabling a 60° bend in practical applications, thus satisfying the rigorous demands of human sweat detection applications. The results obtained from continuous 60 min in vitro monitoring of sweat glucose levels demonstrate a robust correlation with the data of blood glucose levels collected by a commercial glucose meter. Furthermore, the fabricated Ti3C2Tx/PANI/GOx sensor demonstrated agreement with HPLC findings regarding the actual concentration of added glucose. This study presents an efficient and practical approach for the development of a highly reliable MXene glucose biosensor, enabling stable and long-term monitoring of glucose levels in human sweat.
研究领域:
生物医学工程
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材料科学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2024
·
IF 8.3
Junlin Chen,Xiang Chen,Zhifeng Hao,Zhuorui Wu,Mohamed S. Selim,Jian Yu,Yingming Huang
To solve the problem of ice condensation and adhesion, it is urgent to develop new anti-icing and deicing technologies. This study presented the development of a highly efficient photothermal-enhanced superhydrophobic PDMS/Ni@Ti3C2Tx composite film (m-NMPA) fabricated cost-effectively and straightforwardly. This film was fabricated utilizing PDMS as a hydrophobic agent, adhesive, and surface protector, while Ni@Ti3C2Tx as a magnetic photothermal filler innovatively. Through a simple spraying method, the filler is guided by a strong magnetic field to self-assemble into an eyelash-like microstructure array. The unique structure not only imparts superhydrophobic properties to the surface but also constructs an efficient “light-capturing” architecture. Remarkably, the m-NMPA film demonstrates outstanding superhydrophobic passive anti-icing and efficient photothermal active deicing performance without the use of fluorinated chemicals. The micro-/nanostructure of the film forms a gas layer, significantly delaying the freezing time of water. Particularly under extreme cold conditions (−30 °C), the freezing time is extended by a factor of 7.3 compared to the bare substrate. Furthermore, under sunlight exposure, surface droplets do not freeze. The excellent photothermal performance is attributed to the firm anchoring of nickel particles on the MXene surface, facilitating effective “point-to-face” photothermal synergy. The eyelash-like microarray structure enhances light-capturing capability, resulting in a high light absorption rate of 98%. Furthermore, the microstructure aids in maintaining heat at the uppermost layer of the surface, maximizing the utilization of thermal energy for ice melting and frost thawing. Under solar irradiation, the m-NMPA film can rapidly melt approximately a 4 mm thick ice layer within 558 s and expel the melted water promptly, reducing the risk of secondary icing. Additionally, the ice adhesion force on the surface of the m-NMPA film is remarkably low, with an adhesion strength of approximately 4.7 kPa for a 1 × 1 cm2 ice column. After undergoing rigorous durability tests, including xenon lamp weathering test, pressure resistance test, repeated adhesive tape testing, xenon lamp irradiation, water drop impact testing, and repeated brushing with hydrochloric acid and particles, the film’s surface structure and superhydrophobic performance have remained exceptional. The photothermal superhydrophobic passive anti-icing and active deicing technology in this work rely on sustainable solar energy for efficient heat generation. It presents broad prospects for practical applications with advantages such as simple processing method, environmental friendliness, outstanding anti-icing effects, and exceptional durability.
研究领域:
材料科学
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能源科学
·
表面工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Yue Sun,Zhuo Liu,Yuchi Zhang,Le Han,Yan Xu
Photoexcitation is an effective method to promote specific gas sensing performance of semiconductor for electronic device. In this work, an interlayered Ti 3 C 2 T X /TiO 2 /ZnO ternary nanoarchitecture was successfully prepared via sequential etching-intercalation and pyrolysis methods, for which the ZIF-8 nanoparticles were initially incorporated into the adjacent interlayers of laminated Ti 3 C 2 T X MXene derived from HF-etching of Ti 3 AlC 2 MAX phase. The resultant multilayered Ti 3 C 2 T X /ZIF-8 nanocomposite was pyrolyzed at 400 o C to form Ti 3 C 2 T X /TiO 2 /ZnO ternary heterostructure , showing high triethylamine (TEA) sensing performance with R a /R g = 98 at 270 o C under 620 nm red-light irradiation, which is 3.1 times higher than that of the value measured under darkness. A rapid response/recovery time of 17 s/86 s is achieved, and it shows excellent TEA sensing selectivity and long-term cyclic stability. The close-stacked nano-/microstructure of Ti 3 C 2 T X /TiO 2 /ZnO effectively contribute to the diffusion and permeation of gas molecules, as well as the photogeneration and migration of charge carriers, leading to its outstanding photoactivated TEA sensing performance. This work provides a feasible approach to exploring high-performance Mxene hybrids for ultrasensitive TEA monitoring.
研究领域:
材料科学
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纳米技术
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化学传感器
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光化学
✓ 已验证
产品关联
DOI
高影响因子
Analytical Methods
·
2024
·Vol. 16
·期 24
·3867-3877
·
IF 2.7
Xin Yao,Liyu Yang,Siyi Yang,Jinhui Shen,Danqun Huo,Huanbao Fa,Changjun Hou,Mei Yang
A Ti3C2Tx/MoS2/MWCNT@rGONR nanocomposite was prepared for the first time for building a sensitive electrochemical aptasening platform to simultaneously detect kanamycin (Kana) and chloramphenicol (Cap). Owing to their accordion-like structure, rich surface groups, and high charge mobility, Ti3C2Tx/MoS2/MWCNT@rGONR composites provided a spacious covalent immobilization surface and a better electrochemical aptasensing platform. The aptamers of Kana and Cap used in sensors enhance the selectivity. Furthermore, TiP, an ion exchanger, was used for loading more different metal ions functioning as labels to form a sandwich-type sensor together with Ti3C2Tx/MoS2/MWCNT@rGONR, improving the electrochemical sensitivity and obtaining a highly distinguishable signal readout. Under the optimized conditions, the sensor has good detection limits of 0.135 nmol L−1 and 0.173 nmol L−1 for Kana and Cap, respectively, at the same linearity concentration of 0.5–2500 nmol L−1. Finally, it was successfully applied for detection in milk and fish meat, and the results were compared with the standard method HPLC, indicating its great potential for food safety monitoring.
研究领域:
分析化学
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食品安全
·
生物传感技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Ziheng Ye,Feihua Liu,Xiaoai Ye,Kaizheng Gao,Jingjing Luo,Xiangli Liu,Weiwei Zhao
Ti 3 C 2 T x MXene with outstanding physicochemical properties have shown huge potential in electromagnetic interference (EMI) shielding applications. However, the poor chemical stability and mechanical fragility have seriously hindered their practical use. Herein, we developed a novel pyrimidine-containing polyimide (PPI) and constructed Ti 3 C 2 T x /PPI (MP) composite films . The incorporation of PPI not only suppresses the oxidation of Ti 3 C 2 T x by forming Ti-N x interactions between the nitrogen-rich pyrimidine rings of PPI and the Ti centers of Ti 3 C 2 T x , but also enhances mechanical strength and durability of the composite film across a wide temperature range (-196–250 ℃). Compared with Ti 3 C 2 T x film, the MP film exhibits significantly improved oxidation resistance , which the EMI SE of MP film did not decrease after 14 days in 80 ℃/80 RH environment when the weight ratio of Ti 3 C 2 T x and PPI reaches 11:4. Merely 1.4 dB decrease in EMI SE of the MP film was revealed after 200,000 bending cycles with a radius of 2 mm, and the EMI SE remained virtually unchanged after bending in liquid N 2 . Moreover, the composite film demonstrates excellent thermal management properties, including rapid thermal response, efficient electrothermal conversion, excellent durability and stability. The combination of desirable EMI shielding ability, ultrahigh flexibility, superior stability and durability, as well as ideal thermal management performance gives this material excellent potential for various applications.
研究领域:
材料科学
·
高分子化学
·
纳米复合材料
·
电磁学
·
热物理学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）