COLLOIDS AND SURFACES B-BIOINTERFACES
·
2025
·
IF 5.6
Fuyan Zhang,Dilong Zhang,Xueyan Ran,Mingzhu Xiao,Lu Gan,Xiujie Yang,Yong Xie,Qi Sun
The pervasive accumulation of tetracycline (TC) in aquatic ecosystems poses severe ecological and health threats, yet conventional technologies rarely achieve reliable removal under continuous-flow conditions. To overcome the intrinsic brittleness, aggregation and leaching of powdered ZIF-67, this study developed novel alginate-encapsulated MOF composite gel spheres (ALG/ZIF-67) via in-situ crystallization. This simple strategy generates hierarchical pores, anchors Co-N active sites and imparts mechanical robustness without sacrificing adsorption kinetics. Comprehensive characterization confirmed a hierarchical porous structure with uniformly dispersed ZIF-67 nanoparticles. Batch experiments demonstrated exceptional TC adsorption (89.45 mg/g), following pseudo-second-order kinetics and the Langmuir isotherm, indicating chemisorption-driven monolayer adsorption via π–π interactions, hydrogen bonding, and coordination with unsaturated Co²⁺ sites. Fixed-bed applications showcased remarkable stability, maintaining > 80 % TC removal over 6 h with negligible ZIF-67 leaching. The alginate matrix enhanced mechanical robustness and recyclability, mitigating MOF limitations in flow systems. This work provides a scalable, eco-friendly adsorbent for antibiotic-laden wastewater, bridging laboratory innovation and industrial deployment while addressing persistent contaminant challenges.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Hong-Hong Wang,Jia Liu,Juan Chen
With the increasing demand for lipase inhibitors and novel anti-obesity therapies, it is of paramount importance to screen Candida rugosa lipase (CRL) inhibitors from traditional Chinese medicines (TCMs) as anti-obesity drugs. Immobilized enzyme screening technology combined with capillary electrophoresis has become a powerful tool for the exploration of CRL inhibitors due to its easy separation characteristics and high separation efficiency. In this work, tannic acid (TA)-modified ZIF-67 was adopted as a readily available carrier for CRL immobilization. ZIF-67 was fabricated by mixing Co(NO 3 ) 2 ·6 H 2 O with 2-methylimidazole under ambient conditions. TA was subsequently introduced to chelate the surface metal ions of ZIF-67, yielding a ZIF-67/TA hybrid carrier. CRL was then immobilized onto the ZIF-67/TA via physical adsorption. The immobilization of CRL on TA-modified ZIF-67 minimally alters its conformation, enabling 98.7 % recovery of enzymatic activity. Additionally, it exhibits a high CRL loading capacity of 36.5 mg·g⁻¹ determined by the Bradford protein assay. The ZIF˗67/TA/CRL demonstrated notable improvements in thermal resistance, operational durability, recyclability, and storage performance. Its calculated Michaelis constant ( K m ) was determined to be 1.41 mM, while the half-maximal inhibitory concentration (IC 50 ) of orlistat against the system was measured to be 19.74 µM. Finally, capillary electrophoresis was employed to evaluate CRL inhibitions across 18 TCMs, identifying Schisandrae Chinensis Fructus as the most potent CRL inhibitor. This investigation not only presents an innovative strategy for discovering lipase inhibitors and prospective anti-obesity agents, but also underscores the therapeutic potential of TCMs in metabolic disorder intervention.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Xiqing Liu,Tao Wang,Yongqing Wang
Fluorescence technology enabled highly sensitive, real-time and multi-scenario detection of lysozyme (Lys). However, fluorescent nanomaterials suffer from aggregation-induced quenching, environmental interference and lack of selective recognition capability. In this work, the ZIF-8 was used as a framework to support red and blue fluorescence quantum dots for constructing ratiometric fluorescence sensor. At the same time, combined with molecular imprinting technology, a Molecular Imprinting Polymers (MIPs)-based ratiometric fluorescence sensor was designed for improving the sensitive and selective. The MIPs-based ratiometric fluorescence sensor exhibited highly sensitively and selectively for the detection of lysozyme. Benefited from ratiometric design, the sensor could realize the effect of visual detection of Lys and the limit of detection (LOD) was reached 0.048 mg/L. The HPLC method was used to further confirm the sensor has the potential for practical application. Furthermore, to the demand of an affordable and portable strategy for visual detection Lys, a dexterous and inexpensive test paper was made in this work.
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Yan Liu,Xingnian Duan,Xiaoyu Qiu,Chengjia Luo,Xixiang Liu,Jianmei Cen
Developing efficient electrocatalysts is very important for hydrogen production. These catalysts help speed up the oxygen evolution reaction (OER). This is crucial for solving energy shortages and reducing pollution. Herein, Co-doped NiMoO 4 (Co-NiMoO 4 /NF) was successfully prepared by pyrolysis of ZIF-67 via an impregnation-hydrothermal strategy and as a catalyst for oxygen evolution reaction in alkaline solutions. The nanorod-nanosheet structure of Co-NiMoO 4 /NF provides large surface area and abundant active sites, while cobalt doping modulates the electronic structure of NiMoO 4 , which is conducive to the enhancement of the electrochemical activity of catalysts. Density-functional theory calculations further demonstrated that Co-doped Co-NiMoO 4 /NF was more favorable to the adsorption and stabilization of *OOH intermediates than NiMoO 4 /NF. As a result, Co-NiMoO 4 /NF exhibits excellent OER performance with an overpotential of 199 mV at 10 mA cm −2 and remains stable after 200 h of continuous testing under current density conditions of 10 and 500 mA cm −2 . The remarkable electrocatalytic performance of Co-NiMoO 4 /NF highlights its strong potential as an efficient catalyst for sustainable energy conversion systems.
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2025
·
IF 2.6
Chonglin Wang,Peng Gao,Xiang Yao,Xiaohui Sun,Hong Du
Metal-organic framework (MOF) materials have been extensively utilized as catalysts for the oxygen evolution reaction (OER) due to their remarkable properties. To enhance electrocatalytic performance, the modifying MOF materials has emerged as a significant research area. In this study, we synthesized MIL-100(Fe), and MOF-74(Co) MOF materials on the surface of NiCo-ZIF using 2,5-dihydroxyterephthalic acid as the ligand , successfully obtaining a ternary MOFs composite material designated as NiCo-ZIF@MM. Experimental results demonstrated that the NiCo-ZIF@MM composite formed a heterogeneous structure, which significantly enhanced electron transport efficiency and catalytic activity. Additionally, this novel material exhibits a larger electrochemical active surface area and excellent stability. Notably, the overpotential of NiCo-ZIF@MM is reduced to 190 mV at a current density of 10 mA/cm2. This study not only achieves effective modification of ZIF materials but also provides a new strategy for the development of highly efficient and stable MOF-based OER catalysts.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Taotao Huo,Xiaoyu Shan,Ziyi Wang,Jiaqi Song,Liang Shao,Yuquan Bai,Xianyi Yu,Qingyuan Yang,Guangying Li,Rongqin Huang
The particle size of ZIF-8 significantly influences its benefits in drug delivery and release, thereby determining therapeutic efficacy. Here, we investigate the correlations between drugs and ZIF-8 crystallization and discover that emodin can function as a binding template for zinc ions to accelerate nucleation processes via reducing the Gibbs free energy, while also serving as a capping agent on the {100} facets to regulate crystal growth. These dual roles, based on hydroxyl-substituted anthraquinone structure of emodin, can govern ZIF-8 crystallization, enabling the precise control over both size and morphology of emodin-loaded ZIF-8 (E@Z). Consequently, by regulating the feed ratio of emodin, E@Z ranging in size from 900 nm to 80 nm are successfully prepared. The therapeutic outcomes demonstrate that, in addition to enhancing the antibacterial effect of emodin, size-dependent degradation properties of E@Z enable a controlled release of emodin within tumor, ultimately amplifying its anti-tumor efficacy. Additionally, other natural anthraquinones compounds with structures similar to emodin also possess this ability to regulate ZIF-8 size. Our study provides a fundamental framework for the advancement of anthraquinone drugs and their potential applications in the field of ZIF-8-based size-dependent nanotherapeutics.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yuanshu Weng,Jiannan Li,Dongna Xie,Song Peng,Ying Wen,Jiale Wan,Dong Ma,Guowei Li,Wu Zhang
Periodontitis is initiated by bacterial biofilms, and the removal of plaque is critical in preventing the onset and progression of periodontal diseases, including gingival inflammation, periodontitis, and even alveolar bone resorption. Clinically, mechanical methods are commonly used to remove plaque and calculus. However, conventional methods struggle to access certain regions, such as deep periodontal pockets, root furcations, and dentinal tubules. In these cases, antimicrobial agents are required to eradicate residual pathogenic microorganisms. This study designed a dextran-coated ZIF-8-based composite material (Ce6@ZIF-8/Dex) to enhance biofilm penetration and photodynamic antibacterial efficacy against periodontal pathogens. The photosensitizer, chlorin e6 (Ce6), synergizes with zinc ions (Zn2+) from the zeolitic imidazolate framework 8 (ZIF-8) to achieve a combined antibacterial effect and reduce bacterial resistance to single antimicrobial agents. Dextran modification further improves the biofilm penetration capability of the ZIF-8 composite, enhancing its overall antibacterial efficiency. In vivo, Ce6@ZIF-8/Dex demonstrated excellent biocompatibility and antibacterial activity against Porphyromonas gingivalis and Streptococcus mutans. This study presents a promising antibacterial strategy for the prevention and treatment of periodontitis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yipu Xu,Wenru Zhao,Rui Chen,He Li,Xinyu Liu,Peiran Wu,Hui Yu,Jiansong Wang,Liu-Liu Shen,Gui-Rong Zhang,Donghai Mei
Zeolitic imidazolate frameworks (ZIFs) are widely explored as precursors for constructing electrocatalysts for the oxygen reduction reaction (ORR). However, most studies convert these frameworks into metal-nitrogen-carbon (M-N-C) catalysts via pyrolysis, a process that often compromises their structure integrity and coordination precision. Herein, it is demonstrated that ZIF-67 can serve directly as a highly-active molecular catalyst for ORR. By applying ball-milling to enhance cobalt sites exposure, the optimized ZIF-67 exhibits exceptional ORR activity in alkaline media. Combined spectroscopic and theoretical analyses reveal that this remarkable activity stems from coordinatively unsaturated Co-N 4-x sites, which transform into Co-N 4-x (OH) moieties under reaction conditions, thereby facilitating oxygen adsorption and activation. Furthermore, mild thermal treatment (≤500 °C) enhances the proportion of Co-N 4-x sites up to 48%, as confirmed by X-ray absorption spectroscopy, achieving ORR activity rivals or even exceeds conventional pyrolyzed M-N-C catalysts. This study unlocks the potential of ZIFs as active molecular electrocatalysts upon mild thermal treatment, providing a scalable and efficient strategy for optimizing ZIFs for catalytic applications while preserving their structural precision.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yimeng Sun,Yifan Zhou,Liping Chen,Dandan Wang,Haiyan Liu,Weihai Ni,Xinjian Feng
Oxidase enzyme-based electrochemical bioassays have garnered considerable interest due to their specificity and high efficiency. However, in traditional solid–liquid diphase enzyme electrode systems, the low solubility of oxygen and its slow mass transfer rate limit the oxidase catalytic reaction kinetics, thereby affecting the bioassay performance, including the detection accuracy, sensitivity, and linear dynamic range. ZIF-8 nanoparticles (NPs) possess hydrophobic and high-porosity characteristics, enabling them to serve as oxygen nanocarriers. In this work, we constructed a solid–liquid–air triphase enzyme electrode by encapsulating ZIF-8 NPs within an oxidase network. Hydrophobic ZIF-8 NPs can provide a rapid and sufficient supply of oxygen for the oxidase-catalyzed reactions, which enhances and stabilizes the kinetics of oxidase-catalyzed reactions. This approach eliminates the issue of “oxygen deficiency” at the traditional solid–liquid diphase interface. Consequently, the triphase enzyme electrode exhibits a 12-fold higher linear detection range than the diphase system and possesses good detection accuracy in electrolytes even with fluctuating oxygen levels. This work proposes a novel approach to construct triphase reaction systems for addressing the gas deficiency problem in heterogeneous catalysis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Jinyu Liu,Zikang Qin,Linlin Yang,Jing Wei,Chao Feng,Bo Tang,Wenju Jiang,Lin Yang,Lu Yao,Junfeng Zheng,Zhongde Dai
Membranes based on two-dimensional (2D) materials often show great separation efficiency and therefore have great potential in the treatment of dye wastewater. However, improving the water flux of 2D material-based membranes remains a challenge. In this work, 2D ZIF-67/CNF membranes were prepared on a polyether sulfone (PES) support layer via a simple extraction filtration method. The added CNF intertwined with 2D ZIF-67 nanosheets and formed an interlocked stacked laminar flow structure, which improved both the water flux and stability of the thin-film nanocomposite (TFN) membranes. The optimized membrane showed a water flux of 357.8 L m − 2 h − 1 bar − 1 , and its rejections of four dyes (Direct Red 80, Methyl Blue, Alkali Blue 6B and Congo Red) were all above 99.8 %. Furthermore, the optimized membrane maintained a rejection of 97 % after 8 h of continuous operation, indicating that the facile mixing of nanofibers into nanosheets can be considered a promising strategy for preparing TFN membranes for dye wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Wu-Di Zhang,Xiao-Ye Ge,Kang-Kang Zhao,Qiang Zhang,Fu-Hu Cao,Xingyu Guo,Chuan-Ling Zhang
Tellurides are promising anode materials for lithium-ion batteries (LIBs) because of their high electronic conductivity and energy density. However, the slow kinetics and poor structural stability lead to decreased electrochemical performance. In this work, by utilizing the interface magnetization mechanism and assembly effect, high-performance CoTe 2 nanoparticles encapsulated hierarchical N -doped porous carbon nanofibers were rationally designed and prepared (ES-CoTe 2 @NC) via facile tellurization of one-dimensional (1D) ZIF-67 nanocube assemblies. Benefiting from the synergistic effects of the unique structure and component, the ES-CoTe 2 @NC anode exhibits a high reversible capacity of 1020 mAh/g at 0.1 A/g after 200 cycles, along with excellent long-term cycling stability, retaining a capacity of 780 mAh/g at 1 A g −1 after 500 cycles. Notably, the ES-CoTe 2 @NC anode retains a remarkable capacity of 502 mAh/g even after 1000 cycles at a high current density of 5 A g −1 , highlighting its exceptional cycling stability. Besides, the Full cell coupled with LiFePO 4 cathode delivers a high reversible capacity of 151.1 mAh g −1 at 0.1 A g −1 with stable cycling performance. The kinetics analysis reveals that the ES-CoTe 2 @NC anode has high pseudocapacitive properties, high electronic conductivity, and fast Li + diffusion capability. Moreover, the ex-situ characterization clarifies the conversion reaction mechanism of ES-CoTe 2 @NC. This work provides a facile but effective way to construct high-performance CoTe 2 -based electrodes.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Yiqiong Yang,Jiaying Ye,Yixuan Zhai,Bingbing Yang,Mingyao Yin,Yi Xu,Jinfeng Wang,Xiaodong Zhang
In this study, we successfully synthesized ZIF-67 material on three-dimensional (3D) nickel foam (NF) substrate by co-precipitation method, and then fixed CoS x on NF by hydrothermal vulcanization method to form CoS x /NF. The optimized CoS x /NF can effectively activate peroxymonosulfate (PMS) and improve the degradation efficiency of ofloxacin (OFL). The effects of PMS dosage, reaction temperature, initial pH and co-existing ions on the degradation effect of OFL were investigated in detail. CoS x /NF (1 piece 2 × 2 cm) and PMS (1 mM) in an aqueous solution (pH = 7) degraded 85 % of OFL (20.0 mg/L) within 45 min. This favorable degradation performance is mainly attributed to the enhanced electron transfer capability introduced by the bimetallic material. In addition, CoS x /NF still maintained high degradation effect and stable structure after 5 cycles. Quenching experiments further revealed that radicals •OH and 1 O 2 play a major role in degrading OFL. In addition, the degradation pathway, ecotoxicity evaluation and degradation mechanism of OFL were comprehensively investigated. In summary, the CoS x /NF catalyst proved to be a highly efficient, stable and recyclable heterogeneous composite, and opened up the possibility of using Metal-organic framework (MOF) derivatives in fields such as wastewater treatment .
✓ 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）