CERAMICS INTERNATIONAL
·
2026
·
IF 6
Jingbao Zhang,Yang Liu,Aocheng Zhou,Xiaotong Wang,Yongfeng Guo
The relative density of 8 wt% yttria-stabilised zirconia (8YSZ) ceramics—commonly employed as a thermal-barrier-coating material—is strongly influenced by the initial powder particle size. Differences in the grain size and density considerably affect the spark discharge stability during electrical discharge machining; this poses a key challenge in achieving high machining efficiency and surface quality. To address this problem, this study proposes a method for enhancing the discharge stability of insulation ceramics by regulating the electrode current density distribution and maintaining-voltage range. This method utilises the skin effect to analyse how the grain size and density influence the current density distribution. The material removal mechanisms for 8YSZ ceramics with different characteristics are investigated via morphological and elemental analyses of the machined surfaces and processing debris. The results show that increasing the grain size and density enhances spark discharge stability, reduces thermal shock to the machined surface, and consequently increases the spalling removal volume. Thus, a new detection and control methodology is presented for improving the spark discharge stability and efficiency of machining insulation ceramics.
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高影响因子
NANO
·
2026
·
IF 1.3
Zhihuang Sun,Ning Xiao,Zhebin Yan,Jiajia Xu,Guangwei Liu,Zhuo Wang,Guobao Wu,Jian Jiang
Osteomyelitis is a devastating bone disease caused by bacterial infection, the treatment of which remains challenging due to bacterial biofilm formation and impaired bone regeneration. The development of an integrated therapeutic platform capable of locally filling bone defects, enabling controlled drug release and modulating the infectious microenvironment is of crucial importance. This study constructed an injectable self-healing hydrogel based on Schiff base bonds for pH-triggered delivery of ZIF-8-loaded curcumin, aiming to achieve synergistic therapy for osteomyelitis. Curcumin-encapsulated zeolitic imidazolate framework-8 nanoparticles were synthesized via a one-pot method and embedded into an oxidized starch–gelatin hydrogel network formed by dynamic Schiff base crosslinking, yielding the composite hydrogel. Systematic characterization revealed that the ZIF-8@Cur nanoparticles exhibited a well-defined rhombic dodecahedral structure, high crystallinity and a curcumin encapsulation efficiency of 85%. The composite hydrogel demonstrated excellent injectability, rapid self-healing behavior and remarkable pH-responsive drug release: under the acidic condition mimicking an infectious microenvironment (pH 5.5), the cumulative release over 72 h reached 85%, significantly higher than the 25% observed at physiological pH 7.4. In vitro antibacterial assays confirmed its potent broad-spectrum antibacterial activity against both Gram-positive and Gram-negative bacteria ( > 98% inhibition). More importantly, the system effectively promoted macrophage polarization from pro-inflammatory M1 to anti-inflammatory and reparative M2 phenotypes while exhibiting good biocompatibility. This study successfully developed an intelligent responsive injectable hydrogel delivery system integrating efficient antibacterial, anti-inflammatory and immunomodulatory functions, offering a promising strategy for the comprehensive local treatment of osteomyelitis.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
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IF 5.2
Yi Duan,Meilin Liu,Dianhui Men,Yiyao Luo,Xuhui Xia,Li Wang,Fei Deng,Danqun Huo,Changjun Hou
CA15–3 is a vital biomarker for monitoring and evaluating treatment efficacy in breast cancer patients, especially those with advanced-stage disease. Conventional immunoassays face limitations, including high cost, limited sensitivity, and dependence on potentially error-prone single-fluorescence signal outputs. To address these challenges, we designed a dual-signal-emitting sensor based on CdTe quantum dots@ZIF-8 nanomaterials, incorporating both the CRISPR/Cas12a system and catalytic hairpin assembly (CHA) technology. The binding of CA15–3 to its specific aptamer inhibits the CHA cascade reaction, thereby preventing the generation of double-stranded DNA activators necessary to initiate Cas12a-mediated trans-cleavage activity. As a result, FAM-ssDNA is extensively adsorbed onto the CdTe QDs@ZIF-8 surface, where efficient electron transfer effectively quenches its fluorescence. The incorporation of the aptamer facilitates dual-signal amplification through both the CHA and CRISPR/Cas12a systems, achieving a detection limit of 0.131 U/mL. This dual-signal output mechanism provides the system with an internal reference function, thereby significantly improving the reliability of the results. Overall, this work establishes a novel tumor biomarker detection platform that combines high sensitivity with excellent robustness.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122376
·
IF 7.5
Ying Xue,Qing Liu,Yang Yv,Xiaonan Hao,Yue Wu,Shulin Sun
Wastewater treatment remains a critical global environmental challenge. In this study, zeolitic imidazolate framework-8 (ZIF-8) was first grown in situ on carboxylated carbon nanotubes (CNT-COOH), followed by coating with tannic acid (TA). The CNT-COOH@ZIF-8@TA composite was successfully synthesized. Subsequently, a series of polyvinylidene fluoride (PVDF)/CNT-COOH@ZIF-8@TA (PZC) separation membranes were fabricated by the non-solvent-induced phase separation (NIPS) method. Separation tests demonstrated the high removal efficiencies (>99%) of PZC membranes for methylene blue (MeB) and auramine O (AO) dyes, along with effective retention of corn oil and pump oil emulsions. Furthermore, the engineered PZC membranes exhibited significant adsorption capacity for aqueous dyes, achieving removal rates exceeding 98% for both MeB and AO. The adsorption characteristics and underlying mechanisms were elucidated through kinetic, isothermal, and intra-particle diffusion modeling. Additionally, the PZC membranes demonstrated catalytic activity towards MeB degradation, and the PZC4 membrane achieved a degradation efficiency of 88.3%. Moreover, to enhance membrane longevity, membrane regeneration was achieved through photocatalytic cleaning under UV irradiation, offering an alternative to conventional cleaning methods. This study systematically analyzed the chemical structure, surface morphology, hydrophilicity, and charge properties of the material through multiple characterization techniques, including Fourier Transform Infrared Spectroscopy (FTIR), X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscopy (SEM), contact angle measurement, and Zeta potential analysis. The membrane's wastewater purification capability was comprehensively evaluated by combining filtration performance, adsorption experiments, and photocatalytic testing. The designed separation membranes offer promising solutions for the post-treatment of oil spills and the remediation of dye-contaminated wastewater.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Xiao Zhu,Weitao Bian,Jing Zhong,Zhaoxiang Zhong
Airborne particulate matter (PM) pollution poses a serious threat to public health and the environment, underscoring the urgent need for advanced air filtration membranes that combine high efficiency with environmental sustainability. Although polylactic acid (PLA) nanofiber membranes (NFMs) are a promising eco-friendly potential, their electret instability and rapid performance decay limit practical application in air filtration. Inspired by the efficient predation mechanism of corals, we developed coral-like ZIF-8/PLA NFMs featuring a unique “skeleton-tentacle” architecture via controlled in situ secondary growth. This method enables precise regulation of ZIF-8 crystal size and distribution, maximizing active site exposure while preserving inter-fiber pores. The resulting ZIF-8/PLA NFMs exhibit a synergistic “electrostatic-adsorption, physical-interception, and chemical-interaction” capture mechanism, achieving a stable PM filtration efficiency of >99.78% over 2 h with only a moderate increase in pressure drop (from 155 to 217 Pa). The quality factor ( Q F ) reached 0.028 Pa −1 , which is 12 times higher than pure PLA NFMs. Moreover, the membranes also demonstrated excellent gas permeability (1214 m 3 ·m −2 ·h −1 ·kPa −1 ) and mechanical strength (4.0 MPa). In addition, the sterilization rates of ZIF-8/PLA NFMs against both E. coli and S. aureus reached 99.99%, indicating outstanding antibacterial performance. This work not only provides a high-performance, low-resistance, and sustainable air filtration membrane but also establishes a versatile biomimetic paradigm for integrating MOFs onto biodegradable polymers, thereby offering a promising route toward next-generation green filtration media.
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Surfaces and Interfaces
·
2026
·
IF 6
Qiuyan Luo,Wenhui Zhang,Yuan Mao,Wenfu Li,Qizi Wu,Xuyan Guo,Shuaiwei Wei,Guixiang Wang,Fuqiu Ma,Boris Krit
This study presents a facile one-pot hydrothermal strategy for the in-situ growth of a layered double hydroxide and ZIF-8 composite coating on anodic aluminum oxide. The synthesis temperature was optimized within the range of 110–130 °C, which enables the synchronous formation of a uniform and well-interlocked LDH/ZIF-8 microstructure. Subsequent modification with stearic acid (SA) effectively imparts hydrophobicity to the coating, yielding a water contact angle of 136.4 ± 0.10°. The obtained LDH/ZIF-8@SA coating exhibits remarkable anti-icing performance, delaying ice nucleation and complete freezing of a water droplet at -15 °C by 93% and 45%, respectively, compared to the bare AAO substrate. Electrochemical tests demonstrate excellent corrosion resistance, with the SA-modified coating showing a corrosion current density of 1.413 × 10 -9 A·cm -2 after 3 days of immersion, and a charge-transfer resistance up to 1.362 × 10 8 Ω·cm 2 after 14 days of immersion in 3.5 wt.% NaCl solution. Moreover, the coating possesses a low friction coefficient of 0.318 ± 0.045. Density functional theory calculations were performed to elucidate the interfacial bonding mechanism among ZIF-8, SA and LDH.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Hui Xu,Yuhang Zhong,Dingke Wang,Ran Sun,Yujie Tan,Xingang Liu,Jianyuan Hou,Yuan Yuan,Ximan Dong,Renxi Zhang
Cu/Z-700 enables plasma-driven H₂ evolution from simulated seawater vapor. • Dynamic Cu redox cycling acts as an electron relay during plasma catalysis. • Cu clusters, Cu N sites, and pyridinic N perform differentiated functions. • An H₂ rate of 1.33 mL min −1 is achieved with >95% activity after five cycles. How different active sites cooperate under non-thermal plasma (NTP) conditions is still poorly understood. Here, Cu-doped ZIF-8-derived carbon carbonized at 700 °C (Cu/Z-700) is shown to host three distinct active centers: metallic Cu clusters, Cu–N coordinated (Cu–NC) moieties and pyridinic N (Py-N) sites. Cu K-edge X-ray absorption spectroscopy reveals that ~80% of Cu exists as metallic clusters and ~ 20% as isolated Cu δ+ –Nₓ sites. Density functional theory (DFT) calculations suggest a functional division among the three sites: Cu clusters show the strongest Cu–OH binding and the most favorable reaction free energies, Cu–NC sites favor intermediate conversion and product desorption, and Py-N sites promote water adsorption. In a dielectric barrier discharge (DBD), Cu/Z-700 delivers a H₂ production rate of 1.33 mL min −1 from water vapor generated from simulated seawater at a residence time of 3 s, an 11-fold enhancement over plasma alone, with 93.6% activity retention over 20 cycles. Gas-phase product analysis shows that more than 97% of the H₂ originates from water splitting. The results clarify the nature of the active sites in Cu/ZIF-8-derived carbon and their contribution to plasma-catalytic water splitting. Download: Download high-res image (169KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF PHARMACEUTICS
·
2026
·
IF 6
Huan Zhou,Ning Zhang,Chaoyue Sun,Min Feng,Ting Yang,Yonghong Liang,Chang Peng,Zhao Fu,Haiyan Zhang
Ulcerative colitis (UC) demands lifelong therapy, yet current regimens require daily high-dose administration that drives poor adherence and cumulative toxicity. Although α-terpineol (αTL) shows therapeutic efficacy in colitis, its oral application is limited by poor oral bioavailability and a lack of colon specificity. Rather than relying on sophisticated surface engineering, we encapsulated αTL within zeolitic imidazolate framework-8 (ZIF-8) during co-nucleation. This unmodified design permitted partial gastric release (∼46%) in gastric fluid and minimal release in intestinal fluid, with the remaining cargo subsequently released in the acidic environment of the inflamed colon. Oral administration of αTL@ZIF-8 resulted in colonic retention exceeding 24 h in DSS-induced colitis mice. Leveraging this colonic accumulation, an every-other-day regimen at 10 mg kg −1 achieved efficacy comparable to daily free αTL at 100 mg kg −1 or cyclosporine A at 60 mg kg −1 . Mechanistically, αTL@ZIF-8 restored Claudin-1 and ZO-1 expression, enriched butyrate-producing genera and elevated butyrate levels, and uniquely modulated glutathione synthesis-related pathways. Safety evaluation in healthy mice showed no overt toxicity under this regimen. This formulation reduces premature drug exposure in the upper gastrointestinal tract and allows more αTL to reach the acidic environment of the inflamed colon. These features enable a low-dose, every-other-day oral regimen that decouples therapeutic efficacy from dosing frequency, positioning it as a promising candidate for long-term UC management. Scheme 1. Schematic diagram of the preparation of orally administered αTL@ZIF-8 and its alleviation effects on colitis mice. Download: Download high-res image (194KB) Download: Download full-size image
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高影响因子
TALANTA
·
2025
·
IF 6.1
Yuanyuan Ding,Ping Wang,Na Wang,Liyun Kong,Min Li,Jing Wang,Tao Zhang
The immunoassay methods, stand as the gold standard in biomedicine, are widely used in diagnostics. However, they often encounter inherent limitations in practical applications, such as the poor stability of enzymes and antibodies, and the laborious process of preparing enzyme-antibody conjugates through covalent bonding. Mas-related G-protein-coupled receptor X2 (MRGPRX2) has been identified as a blood-based diagnostic biomarker for chronic spontaneous urticaria (CSU). In this study, a bifunctional enzyme-labeled antibody (anti-MRGPRX2&HRP@ZIF-8) was successfully constructed by integrating horseradish peroxidase (HRP) into ZIF-8 during its synthesis, followed by adsorption of anti-MRGPRX2 onto the surface of HRP@ZIF-8. The resulting anti-MRGPRX2&HRP@ZIF-8 complex not only preserved its antigen-capturing capability but also exhibited improved stability. The established chemiluminescence immunoassay (CLIA) method based on anti-MRGPRX2&HRP@ZIF-8 demonstrated enhanced stability and achieved a lower detection limit (1.035 ng/mL) compared to conventional enzyme-linked immunosorbent assay (ELISA) method. Furthermore, MRGPRX2 was successfully detected in serum samples by the established method, demonstrating its suitability for the diagnosis of CSU in real clinical samples. Consequently, this study presented a promising approach for simplifying the preparation of enzyme-antibody conjugates and highlighted the potential of metal-organic framework (MOF)-based composites in biomedical applications.
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PubMed
高影响因子
Food Chemistry-X
·
2025
·
IF 8.2
Biying Zhang,Cuiyi Zhang,Hui Liu,Jiaxin Chen,Yangbo Song,Xianghong Xie,Ling He,Shuwen Liu,Kan Shi
Blending is a viable strategy to enhance the organoleptic quality of wine. This study used Hutai No. 8 table grape wine (No. 8 TGW) as the base wine, and blended No. 8 TGW with Cabernet Sauvignon and Syrah to improve its quality, while further investigating chemical profiles responsible for these improvements in terms of polyphenols, aromas and sensory attributes. Through a D-optimal design guided by sensory evaluation, an optimal precise blend ratio of 76.7 % No. 8 TGW, 16.7 % Cabernet Sauvignon, and 6.6 % Syrah was identified, resulting in total phenolic content increased by 60.74 %. Dissecting the aroma chemical profiles further unveiled that increased 17.82 % terpene and 17.74 % acetate ester were the main contributors to aroma complexity. This study elucidates the effectiveness of sensory-driven wine blending strategy for quality augmentation of No. 8 TGW, and clarifies the chemical profiles behind, thereby offering a new paradigm for upgrading table grape wine.
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DOI
PubMed
高影响因子
ACS Nano
·
2026
·
IF 17.3
Chao Ma,Wenna Zhang,Jing Wang,Chenyang Nie,Xiaohe Wang,Nana Yan,Xiaona Liu,Peng Guo,Zhongmin Liu
The similar molecular sizes and physicochemical properties of carbon dioxide (CO2) and hydrocarbons like methane (CH4), acetylene (C2H2), ethylene (C2H4), and ethane (C2H6) make their separation a major industrial challenge. Here, we develop a low-cost, easily regenerable, pure-silica zeolite adsorbent “Instituto de Tecnología Química-55” (ITQ-55) capable of exclusively recognizing CO2 over these hydrocarbons. Guided by three-dimensional electron diffraction (3D ED) and density functional theory calculations, we identified commercially available and cost-effective diquaternary ammonium compounds as alternative organic structure-directing agents (OSDAs), partially replacing the previously expensive and complex ones for the synthesis of pure-silica ITQ-55. The calcined ITQ-55 features narrow 8-ring pores that enable selective CO2 adsorption while minimizing the uptake of CH4, C2H2, C2H4, and C2H6. Notably, the uptake ratio of CO2/C2H2 is much higher than that of currently reported CO2-selective adsorption materials. Dynamic breakthrough tests reveal that ITQ-55 exhibits excellent separation performance for CO2/C2H2, CO2/CH4, CO2/C2H4, and CO2/C2H6. In addition, the spent ITQ-55 adsorbent can be easily regenerated at 80 °C. Furthermore, theoretical calculations confirm that the separation mechanism of ITQ-55 for CO2/hydrocarbons is a size-exclusion mechanism.
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DOI
PubMed
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2026
·
IF 5.3
Xiaolun Peng,Ruijie Xu,Liang Zhang,Xingyao Li,Junhui Xu,Dongyun Huang,Yazhen Wang
A sensitive electrochemical sensor was proposed for neohesperidin dihydrochalcone (NHDC) detection using copper oxide/ zinc imidazole framework 8@ carbon nanotubes modified glassy carbon electrode (CuO/ZIF-8@CNTs GCE). The multi-component CuO/ZIF-8@CNTs GCE was prepared by two-step drop-casting method and characterized by Field-emission scanning electron microscopy (FE-SEM). The effective combination of CuO and ZIF-8@CNTs enhanced the electron transfer and catalytic activity of the electrode and greatly strengthened the oxidation current of NHDC, which was about 5.6-fold that of the CuO GCE and 2.3-fold that of the ZIF-8@CNTs GCE. Inspired by this, the CuO/ZIF-8@CNTs GCE was used for NHDC detection and some crucial parameters were optimized. The reaction mechanism at CuO/ZIF-8@CNTs GCE was confirmed to involve two-step two-electron process by cyclic voltammetry (CV) measurements. Finally, the sensor achieved NHDC detection ranging from 0.03 to 10 μM using differential pulse voltammetry (DPV) technique, with a detection limit of 16.0 nM. The satisfactory recoveries of 92.9–107.8 % in liquor samples also demonstrated its practicability in actual samples, matching well with that of high-performance liquid chromatography (HPLC). This work not only designs a simple detection method for NHDC but also opens up a paradigm for leveraging multi-component MOF composite electrode materials for food safety monitoring.
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高影响因子
危险品化学品经营许可证（带存储）