ENERGY & FUELS
·
2024
·
IF 5.2
Ruoshan Jin,Zichun Xiao,Zhanhui Jia,Jiawu Cui,Chengyong Shu,Yu Bai,Wei Tang,Yuping Wu
It is still a huge challenge for lithium metal batteries (LMBs) with high energy density for practical application due to the intractable dendrite-growth issue triggered by inhomogeneous Li deposition as well as the unstable solid electrolyte interphase (SEI). For the purpose of constructing a dendrite-free Li metal anode, herein we designed and fabricated a functional separator (ZIF-L/rGO@PP) by facile vacuum infiltration in order to realize the effective regulation of ion transport. The nanochannels in ZIF-L with polar functional groups promote the uniform Li+ flux and the restricted migration of anions, while the rGO lamella endows the coating with good flexibility by reinforcing the interlayer bonding interactions. Based on the synergistic effects of ZIF-L and rGO, the functional separator exhibited superb electrolyte wettability and a high Li+ transference number of 0.66, ensuring the uniformity of Li+ transmission and thus induced a robust interface of the Li anode. Consequently, the cells with ZIF-L/rGO@PP separators delivered prolonged lifespan over 700 h with a small overpotential of less than 40 mV at 2 mA cm–2. More importantly, the employment of the separator enables Li||NCM811 full cell with enhanced cycling stability even under the limited N/P ratio of 2.5.
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Jiali Tang,Viatcheslav Freger,Lu Shao,Xuezhong He
Metal-organic frameworks (MOFs)-based hybrid composite membranes are promising candidates for achieving highly efficient water purification. In this study, a facile, novel pressure-induced filtration method involving in-situ polymerization of butyl methacrylate (BMA) was proposed for sealing ZIF-8 nanoparticles on top of polyethersulfone (PES) ultrafiltration membrane support. The developed (ZIF-8+polyBMA)/PES composite membranes with thin toplayers of <1 μm present attractive water permeance (up to 31 LMH/bar) and good rejection of Congo red (99.2 %) and Methylene blue (99.1 %). The ZIF-8 particles served as direct-through channels with superior separation performance due to their high porosity and tunable pore structure, while the interstices were successfully sealed with polyBMA by in-situ polymerization, as demonstrated by SEM and dye removal experiments. It was found that the morphology of ZIF-8 transformed from a rhombic dodecahedron to two-dimensional hexagonal nanosheets during the fabrication process. We hypothesize that this surprising phenomenon is caused by the reaction of the initiators (Na 2 S 2 O 5 and K 2 S 2 O 8 ) that generate the hydroxyl and sulfate radicals attacking and transforming the Zn-MIM bond network of ZIF-8. However, insights into the structural changes need to be further investigated to understand the mechanism involved.
✓ 已验证
DOI
高影响因子
Exploration
·
2024
·
IF 0
Xiaoxue Li,Wei Wang,Qiuxia Gao,Shanshan Lai,Yan Liu,Sitong Zhou,Yan Yan,Jie Zhang,Huanhuan Wang,Jiamei Wang,Yi Feng,Ronghua Yang,Jianyu Su,Bin Li,Yuhui Liao
Infected burn wounds are characterized by persistent drug-resistant bacterial infection coupled with an inflammatory response, impeding the wound-healing process. In this study, an intelligent nanoparticle system (CCM+TTD@ZIF-8 NPs) was prepared using curcumin (CCM), an aggregation-induced emission luminogens (TTD), and ZIF-8 for infection-induced wound healing. The CCM+TTD@ZIF-8 NPs showed multiple functions, including bacteria targeting, fluorescence imaging and pH response-guided photodynamic therapy (PDT), and anti-inflammatory. The positive charges of ZIF-8 NPs allowed the targeting of drug-resistant bacteria in infected wounds, thereby realizing fluorescence imaging of bacteria by emitting red fluorescence at the infected site upon blue light irradiation. The pH-responsive characteristics of the CCM+TTD@ZIF-8 NPs also enabled controllable CCM release onto the infected wound site, thereby promoting the specific accumulation of ROS at the infected site, with outstanding bactericidal efficacy against drug-resistant Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa) strains in vitro/in vivo. Additionally, due to the excellent bactericidal effect and anti-inflammatory properties of CCM+TTD@ZIF-8 NPs combined with blue light irradiation, the regeneration of epidermal tissue, angiogenesis, and collagen deposition was achieved, accelerating the healing process of infected burn wounds. Therefore, this CCM+TTD@ZIF-8 NPs with multifunctional properties provides great potential for infected burn wound healing.
✓ 已验证
DOI
International Journal of Electrochemical Science
·
2024
·
IF 1.3
Shuai Gao,Hongkun Long,Weigang Liu,Zhi Zhang,Shengqiang Qiu,Maoyi Yi,Jie Li
Poor safety of liquid electrolytes and low ionic conductivity of solid electrolytes under room temperature are two major constraints for high energy density, long-term stability and safety of lithium-ion batteries (LIBs). In order to remedy the deficiencies, a quasi-solid electrolyte (QSE) is developed by immobilizing liquid electrolyte into the host of porous 2-Methylimidazole zinc salt (ZIF-8), and then mixing them with solid polymer electrolyte solvent of polyoxyethylene (PEO). The QSE has an ionic conductivity of 0.44 mS cm −1 at 20 °C and 2.27 mS cm −1 at 50 °C. The assembled LiFePO 4 /QSE/Li batteries exhibit excellent electrochemical performance in a wide temperature range. A reversible capacity of 129.7 mAh g −1 at 0.5 C and 20 °C and high capacity retentation of 94.7% at 0.5 C and 50 °C are achieved after 100 cycles. Especially, the LiFePO 4 /QSE/graphite pouch full cell exhibits a capacity retention of 97.7% at 0.5 C and 25 °C. These results indicate that QSE is a suitable candidate for enhancing the electrochemical performance of LIBs.
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Hao Yang,Yi Liu,Hao Chen,Hua Li
Epoxy resin coatings are widely used for corrosion protection due to their cost efficiency, strong chemical durability and favorable mechanical strength. Antifouling agents have also been commonly applied to epoxy coatings for further antifouling function. However, due to the lack of reliable control of continuous release of the antifouling agents, the antifouling effect and service life keeps elusive. This study used a zinc-based metal organic framework ZIF-8 as a nanocarrier to prepare a novel antifouling agent NH 2 -ZIF-8@BITEP. The antifouling agent has uniform particle size and can effectively kill E. coli and S. aureus . After blending with epoxy resin, the resulting ZB coating effectively achieves contact sterilization, especially the ZB coating containing 20wt%NH 2 -ZIF-8@BITEP shows pronounced capability of inhibiting the formation of bacterial biofilm and the adhesion of algae even after 14 days incubation. In addition, the coating shows significantly enhanced corrosion resistance due to the hindering effect of the nanoparticles in the coating. After 7 days of salt spray testing, the ZB coating exhibits the least corrosion occurrence and no decrease in |Z| during EIS testing. The results would give insight into further understanding and potential antifouling and anti-corrosion applications of the newly synthesized antifoulant.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 11
·1-11
·
IF 5.3
Huang Ziyu,Yang Guangwei,Deng Qiuling,Zhang Xuhui,Wei Xiaoping,Li Jianping
Methidathion (MTDT), a common organophosphorus pesticide with high insecticidal activity, is widely used for pest control. However, the misuse of MTDT leads to widespread residues and endangers human health. Therefore, it is crucial to develop a simple and highly sensitive method for the detection of MTDT residues. Herein, ZIF-90/MnO 2 /g-C 3 N 4 /Fe 3 O 4 composite particles were synthesized: The MnO 2 nanosheets could absorb the energy of the excited g-C 3 N 4 to quench the ECL of g-C 3 N 4 while ZIF-90 acted as a mimetic enzyme to catalyze the formation of thiocholine from MTDT. The thiocholine caused the reduction of MnO 2 to Mn 2+ , restoring the ECL signal of g-C 3 N 4 . Combined with molecular imprinting technique, an electrochemiluminescence sensor was constructed for the determination of MTDT. The determination range was 1.00 × 10 –9 ~ 7.00 × 10 –7 g/L, and the detection limit was 6.58 × 10 –10 g/L. Structurally similar organophosphorus pesticides showed no cross-reactivity. The method has high sensitivity and specificity, and has been successfully applied to the determination of MTDT residue in fruits with recoveries in the range 93.75% ~ 102.37%. Graphical abstract
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2025
·
IF 4.1
Qing Fu,Xuhuai Fu,Jinzhou Feng,Jing Wang,Jinyu Jiang,Shijia Ding,Daobin Han,Manxia Wang
Neuromyelitis optica spectrum disorder (NMOSD) is a central nervous system demyelinating disease that typically causes severe visual impairment and paralysis, and the aquaporin-4 antibodies (AQP4-IgG) serve as its specific diagnostic marker. In patients presenting with typical NMOSD symptoms, a positive AQP4-IgG result is sufficient to confirm the diagnosis. However, current clinical methods for detecting AQP4-IgG suffer from limited sensitivity, time-consuming procedures, and labor-intensive workflows, underscoring the urgent need for more efficient and reliable diagnostic approaches. To address these limitations, we report a novel electrochemical biosensor leveraging a hierarchical ZIF-67@PDA@PtCu nanozyme for ultrasensitive and rapid AQP4-IgG detection. ZIF-67@PDA@PtCu, a composite material consisting of a ZIF-67 core coated with polydopamine (PDA) and further decorated with PtCu nanoparticles, was utilized as a signal amplification component. The PtCu alloy nanoflowers demonstrated exceptional catalytic activity, which was further amplified by the sturdy ZIF-67 framework that enabled the integration of additional functional materials. In parallel, PDA enhanced the synergy between the unsaturated edge sites of the metal-organic framework and the outstanding catalytic properties of the PtCu alloy, thereby boosting the overall performance of the system. The integration of graphene oxide (GO) and gold nanoparticles (AuNPs) enhanced electrical conductivity. This configuration enabled efficient electrochemical (EC) signal generation, facilitating the detection of AQP4-IgG with high stability, a broad detection range of 0.1–80 U mL −1 , and an impressively low detection limit of 0.05 U mL −1 . Our findings offer a novel approach for the early diagnosis of NMOSD and provide valuable insights into the detection of other antibody-dependent neuroimmune disorders.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Yan Li,Jing-Wen Liu,Xiao-Xue Lian,Shu-Mei Yang
Triethylamine is an organic amine compound with strong irritancy and toxicity that threatens ecological balance and human health, making accurate detection crucial. However, achieving high sensitivity and selective detection of TEA in ppb level is challenging. Herein, we have successfully prepared an Au-ZnO/ZIF-8 via an interface oxidation strategy followed by Au nanoparticles loading. The synthesis process involves three key steps: firstly, ZnO nanofibers are prepared by electrospinning, followed by in-situ coordination growth to form a ZIF-8 layer on the ZnO surface; subsequently, Au nanoparticles are decorated onto the ZnO/ZIF-8 surface through an impregnation-reduction method; finally, the composites are calcined in a tube furnace to generate oxidation layers while retaining the intrinsic properties of ZIF-8. Sensing tests toward 100 ppm TEA reveal that the Au-ZnO/ZIF-8 sensor exhibits a response of 1012.5 with a low detection limit of 2.78 ppb at 235 °C. This performance is 13.9-fold higher than that of ZnO/ZIF-8 (72.9 at 303 °C) and 30.5-fold higher than that of pristine ZnO (33.1 at 328 °C). Furthermore, the sensor demonstrates high selectivity for TEA, short response times (7 s), as well as excellent repeatability and stability. It indicates that the Au-ZnO/ZIF-8 sensor holds great potential for practical TEA detection, thereby providing a feasible strategy to improve the gas detection capabilities of MOF-based sensors.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Longyu Ren,Yuhang Du,Ya Wang,Jinan Li,Ruojin Zhang,Jiliang Yuan,Hongyan Xu
In 2 O 3 , as a traditional metal oxide semiconductor substrate material, responds to various toxic and harmful gases but with poor selectivity. This paper uses the hydrothermal method to grow dense and uniform In 2 O 3 nanorods vertically on a ceramic tube, and then covers them with ZIF-71. By adjusting the type of solvent used to synthesize ZIF-71, the morphology and properties of the material can be changed. The pores and large specific surface area of ZIF-71 are utilized to sieve large molecular gases, providing more adsorption sites for NO 2 gas. And it forms heterostructure with In 2 O 3 to enhance the response to NO 2 . The optimized gas sensor In 2 O 3 @ZIF-71(CH 3 OH) shows superior response (185, S=R g / R a ) and selectivity of 50 ppm triethylamine as an interfering gas (7.23, S=R a / R g ) to 50 ppm NO 2 compared to pure In 2 O 3 nanorods. Molecular dynamics simulation is used to study the gas adsorption performance of ZIF-71 and theoretical simulation of the adsorption behavior of NO 2 on the In 2 O 3 substrate is conducted through density functional theory. The simulation results show that the ZIF-71 molecular sieve can reduce the response to large molecule TEA gas through the dual effects of pore size adsorption and blocking, thereby improving the selectivity of the material. Indium oxide (In 2 O 3 ) has an adsorption effect on nitrogen dioxide (NO 2 ), with an adsorption heat of 0.499 electron volts, and its adsorption effect is relatively stable.
✓ 已验证
产品关联
DOI
高影响因子
Nano Today
·
2025
·
IF 10.9
Majid Sharifi,Majid Salehi,Somayeh Ebrahimi-Barough,Mohammad Kamalabadi-Farahani
Neuroma formation following the repair of nerve injuries exceeding 0.9 cm in length severely impedes functional recovery. To overcome this challenge, we engineered magnetically responsive core-shell nanoparticles (MnFe 2 O 4 @ZIF-8@Retinoic acid, MFZR; 90–360 nm) to guide regeneration within a decellularized umbilical cord artery (DUCA) conduit. We investigated the synergistic effect of MFZR under an external magnetic field (MF) on Schwann cell behavior in vitro and on sciatic nerve repair in a rat model. Under MF exposure, MFZR significantly enhanced Schwann cell migration, alignment, and elongation on DUCA conduits. In-vivo , the MFZR+MF combination potently promoted functional recovery, as measured by the sciatic functional index, muscle compound action potential, and nerve conduction velocity, without inducing DUCA-related inflammation. Histological analysis demonstrated robust regeneration, characterized by increased axon diameter, an improved G-ratio, and elevated expression of S100 and NF-200. This regeneration was facilitated by a healing-promoting M2 macrophage polarization at the injury site. Critically, the strategy exhibited no systemic toxicity. These findings establish that magnetically guided MFZR effectively prevents neuroma in the DUCA conduits, orchestrates a pro-regenerative microenvironment, and achieves significant functional recovery, offering a promising translatable strategy for nerve repair.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Meiling Xu,Linchun Nie,Jiawei Liao,Dejing Meng,Wenjing Liu,Haobo Yang,Ranhao Zhao,Qingxiang Zhou
A novel and visible ratiometric fluorescence sensor based on magnesium and nitrogen co-doped carbon dots (Mg, N-CDs) encapsulated in zeolitic imidazolate framework-8 (Mg, N-CDs@ZIF-8) was designed for effective detection of oxytetracycline (OTC), employing a “turn-off/turn-on” fluorescence sensing strategy. The blue-emission Mg, N-CDs@ZIF-8 was quenched owing to fluorescence resonance energy transfer by OTC, while the green fluorescence of OTC was significantly enhanced through the interaction of Mg 2+ and Zn 2+ with OTC, enhancing the visual tracking of OTC through a distinct blue-to-green color transition. This sensor displayed a wide linearity range (0.02 − 25 μg/mL), a low detection limit (14.2 ng/mL), and a fast response time (6 min). The validity of the sensor was successfully verified by detecting OTC in milk, honey, tap water, and lake water samples. Additionally, an expandable fluorescence sensor array was constructed for the discrimination of four tetracycline antibiotics (TCs) in real samples, indicating significant application in complex environmental samples.
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Zhenguo Wang,Tingting Chen,Zhiwen Zheng,Bocheng Su,Kangwei Wen,Lin Qin,Changqing Song,Binbin Liu,Haihong Yin
Lithium–sulfur batteries (LSBs) are regarded as a competitive candidate for future energy storage systems due to their exceptionally high theoretical capacity and energy density, but their practical use is limited by severe lithium polysulfides (LiPSs) shuttling and uncontrolled lithium dendrite growth, harming cycling stability and Coulombic efficiency. Herein, a multifunctional Ce-ZIF-8/PDA@PP separator is fabricated via in situ growth. Theoretical and experimental studies confirm it integrates synergistic functionalities from polydopamine (PDA), ZIF-8, and Ce doping. The PDA interlayer, rich in polar groups, enhances electrolyte wettability, homogenizes Li+ flux, acts as a chemical anchor and nucleation facilitator, enabling uniform Ce-ZIF-8 growth on inert PP. ZIF-8 provides uniform microporous channels for size-selective Li+ transport and LiPSs anchoring sites. Redox-active Ce3+/Ce4+ centers enable dynamic electron transfer via 4f–5d orbitals, accelerating LiPSs redox kinetics, enhancing adsorption, and regulating Li+ deposition through local electric field modulation. Consequently, symmetric cells with this separator achieve ultralong stability over 3600 h at 1 mA cm–2/1 mAh cm–2, while full cells cycle stably over 600 cycles at 1 C with 0.040% per cycle capacity decay. This study offers a robust separator strategy to concurrently address polysulfide diffusion and lithium dendrite growth in high-performance LSBs.
✓ 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）