INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Yongshi Li,Peng Shan,Fuyou Yu,Hui Li,Lincai Peng
An environmental-friendly composite films containing waste fish scale-derived gelatin (FSG), sodium alginate (SA) and carvacrol loaded ZIF-8 (CV@ZIF-8) nanoparticles were designed and fabricated to develop active food packaging materials capable of sustained antibacterial activity. The microstructure and physicochemical properties of the FSG/SA/CV@ZIF-8 composite films were investigated. The incorporation of CV@ZIF-8 into FSG/SA matrix significantly enhanced the UV-light blocking and the elongation at break, improved water resistance and reduced water vapor permeability, and improved the thermal stability of composite film. The FSG/SA/CV@ZIF-8 film not only exhibited strong antioxidant activity with DPPH radical scavenging rate of 92.35 %, but also showed the satisfactory and long-acting antibacterial ability against E. coli and S. aureus due to slow release of CV from composite film. Strawberry preservation experiment revealed that FSG/SA/CV@ZIF-8 film decelerated the texture deterioration and retarded the growth of spoilage microorganism, resulting in the prolonged shelf-life of 8 days under ambient condition, indicating its promising application prospect in food preservation packaging.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2020
·Vol. 31
·期 9
·6866-6874
·
IF 2.22
Zhao Yongke,Zhou Zheng,Chen Guangxin,Li Qifang
The metal–organic frameworks have gained high reputation due to their porous structures, high stabilities, ultralow densities, devisable organic ligands, and large specific surface area in recent years. In this work, ZIF-8@silane-modified sepiolite hybrids with a core–shell structure were synthesized successfully via an in situ grown method. The hybrids were then introduced into epoxy to prepare composites. Results showed that the epoxy composites exhibited improved dielectric and thermal properties when the amount of the fillers was only 0.6 wt%. The dielectric constant was decreased by 0.66, the thermal degradation temperature was increased by 46.2 °C, and the glass transition temperature was increased by 8.5 °C.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2023
·
IF 5.4
Zhen Zhao,Lei Zhang,Hongming Zhang,Wuhong Xin,Xiaowen Wang,Chunmiao Liu,Yang Guo,Yinghua Zhuang,Wanli Jiao
Investigating high-performance and low-energy consumption H 2 S sensors has become a hot research topic. This study adopted a one-step co-precipitation method to synthesize La-doped ZIF-8 deprotonating zinc acetate, lanthanum nitrate, and 2-Methylimidazole in an aqueous. La 2 O 3 /ZnO were synthesized with different La 3+ doping concentrations (0, 0.5, 1, and 1.5 at%). We found that La 3+ doping at a concentration of 1 at% showed the highest response value of 140 for 5 ppm H 2 S, at a low operating temperature of 100 °C, which is 2.4 times higher than that of pure ZnO. Additionally, La 3+ doping led to a lower detection limit of 1.9 ppb. The enhanced performance can be attributed to the widening of the difference in electron concentration, the increase in vacant oxygen content, and the spillover effect of H 2 S sensing. These factors were analyzed in detail by means of porosity, P-N heterojunctions, and the increased in adsorbed oxygen content caused by La 3+ doping.
✓ 已验证
产品关联
DOI
高影响因子
Pharmaceutics
·
2023
·Vol. 15
·期 7
·1874
·
IF 5.4
Heming Zhao,Liming Gong,Hao Wu,Chao Liu,Yanhong Liu,Congcong Xiao,Chenfei Liu,Liqing Chen,Mingji Jin,Zhonggao Gao,Youyan Guan,Wei Huang
Prostate cancer (PC) is one of the common malignant tumors of the male genitourinary system. Here, we constructed PTX@ZIF-8, which is a metal-organic-framework-encapsulated drug delivery nanoparticle with paclitaxel (PTX) as a model drug, and further modified the synthesized peptide dimer (Di-PEG2000-COOH) onto the surface of PTX@ZIF-8 to prepare a nanotargeted drug delivery system (Di-PEG@PTX@ZIF-8) for the treatment of prostate cancer. This study investigated the morphology, particle size distribution, zeta potential, drug loading, encapsulation rate, stability, in vitro release behavior, and cytotoxicity of this targeted drug delivery system, and explored the uptake of Di-PEG@PTX@ZIF-8 by human prostate cancer Lncap cells at the in vitro cellular level, as well as the proliferation inhibition and promotion of apoptosis of Lncap cells by the composite nanoparticles. The results suggest that Di-PEG@PTX@ZIF-8, as a zeolitic imidazolate frameworks-8-loaded paclitaxel nanoparticle, has promising potential for the treatment of prostate cancer, which may provide a novel strategy for the delivery system targeting prostate cancer.Keywords:metal-organic framework;paclitaxel;peptide dimer;prostate cancer
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2019
·
IF 4.182
Hai-Tao Wang,Ya-Pan Liu,Hao Zhang,Na Chang,Wei Shao,Meng-Shan Shi,De Ao,Mei-Chan Lu
With the regular structures composed of metal clusters and organic ligands, metal-organic frameworks (MOFs) are expected to be the competent stabilizing matrix for nanoparticles and the excellent precursor of metal oxide with carbon species by means of high temperature pyrolysis , resulting to porous architectures with unexpected adsorptive or catalytic properties. Herein, we design and propose a facile route for preparing porous Carbon doped ZnO/TiO 2 @ZIF-8 (C–ZnO/TiO 2 @ZIF-8) multi-component nano-platform using TiO 2 coated ZIF-8 as precursor and template followed by thermal calcination . The resulted C–ZnO/TiO 2 @ZIF-8 nanocrystal simultaneously possesses original ZIF-8 morphology and porous structure with connected ZnO nanoparticles. As a result, C–ZnO/TiO 2 @ZIF-8 shows obviously better adsorption affinity towards methylene blue (MB). Moreover, benefit from the TiO 2 coating outside ZIF-8 matrix, escape of carbon species which originate from pyrolysis of organic ligands is efficiently inhibited, with the resulted materials doped with abundant carbon. Therefore, charge transfer and isolation of the resulted catalyst are promoted accordingly, with catalytic activity of the prepared C–ZnO/TiO 2 @ZIF-8 multi-component photocatalyst significantly increased by 1.8-fold and 3.0-fold compared to ZnO@ZIF-8 photocatalyst under irradiation of UV and visible light, respectively.
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2016
·Vol. 45
·期 39
·15595-15602
·
IF 4.177
Xinlin Li,Shiling Zhao,Wei Zhang,Yansheng Liu,Rong Li
Ruthenium (Ru) nanoparticles (NPs) are supported on nitrogen-doped porous carbon (NPC) derived from metal–organic-framework (MOF) ZIF-8 for the first time. NPC is prepared by the direct carbonization of ZIF-8 crystals, which not only retains the original morphology of ZIF-8 but also provides a high surface area and stable chemical–physical properties. Ru NPs were supported by different methods. Four types of Ru-based catalysts are tested in the selective hydrogenation of p-chloronitrobenzene (p-CNB) and p-bromonitrobenzene (p-BNB) to haloanilines. Different catalytic activities and selectivities are obtained through these catalysts. After the screening of the catalysts and reaction conditions, high conversion and selectivity were obtained. The hydrogen pressure is limited to 1.5 MPa, which is much lower than most previous reports, and the dehalogenation reaction is restricted to a very low level. Furthermore, the dehalogenation properties of the Ru/NPC catalysts are also studied.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Siyuan Jin,Zhou Jie,Ruizhi Wu,Xiaochun Ma,Zhe Yu,Wang Guixiang,Jinghuai Zhang,Boris Krit,Sergey Betsofen,Neshchimenko Vitalii,Buzikov Ruslan,Min Qiu,Yurong Yang,Jiaming Chen
An in-situ grown LDH/ZIF-8 hybrid film on the surface of MAO film based on the LA93 alloy was successfully fabricated by the one-step method. The composite film, called as MLZ, demonstrates exceptional corrosion resistance. The corrosion current density is reduced by two orders of magnitude compared to the MAO film. Furthermore, it possesses significant long-term protective capabilities. Experimental measurement and density functional theory (DFT) calculations were conducted to investigate the formation mechanism of MLZ composite film. During the hydrothermal, Zn ions from the in-situ generated LDH on the MAO surface serves as active nucleation sites, facilitating the nucleation and growth of ZIF-8 crystals. The formation of ZIF-8 effectively compensates for the intergranular defects in LDH, enhancing the integrity of the film. LDH/ZIF-8 film effectively seals defects in the MAO film and constructs a robust physical barrier, significantly enhancing the protective capacity of the film.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Wei Wang,Cong Shen,Ruiqi Shao,Yanlong Zhu,Wenze Yu,Xianyan Wu,Wensheng Huang,Kai Li,Zhiwei Xu
Conventional photocatalysts utilized in the photodegradation of organic dyes are prone to cause agglomeration of nanocatalysts, which affects the photocatalytic efficiency and is difficult to recycle. In this paper, photocatalysts were rapidly loaded onto polypropylene (PP) meltblown nonwoven material fibers possessing a large specific surface area using water as a solvent and a one-step in situ growth method under ultrasonic conditions. That is, by ultrasonically and rapidly growing zeolite imidazolium skeleton material (ZIF-8) in situ on the surface of dopamine-modified PP meltblown fibers and directly doping carbon dots (CDs) modified TiO 2 during the in situ growth of ZIF-8, a CDs-TiO 2 /ZIF-8/PP composite photocatalytic material was formed. The microstructure, chemical structure, and photocatalytic performance of CDs-TiO 2 /ZIF-8/PP composite photocatalytic material were characterized. The findings indicated that the CDs-TiO 2 /ZIF-8 heterojunction nanocatalysts were effectively loaded onto the exterior of PP meltblown fibers. The CDs-TiO 2 /ZIF-8/PP composite photocatalytic materials exhibited highly efficient and synergistic photocatalytic degradation of the anionic dye Congo red (CR). Upon exposure to visible light, the degradation of CR could reach 99.1 % within 100 min and 99.6 % within 120 min. The first-order kinetic constant for photocatalytic degradation was measured to be 0.0419 min⁻ 1 . Furthermore, the photodegradation of CR by the CDs-TiO 2 /ZIF-8/PP composite photocatalytic material maintained about 85 % after 5 cycles. Finally, the mechanism of in situ deposition and photocatalytic activity of the nanocomposites on the fiber surface was proposed. The composite photocatalytic material can be recycled, and the preparation process is green, simple, and efficient, which has potential application prospects for industrial wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Chen Wang,Chenyang Zhao,Yue Li,Jie Liu,Di Cheng,Tao Shen,Ji Zhang,Qianhong Shen,Hui Yang
The spatial distribution of functional nanofillers in anticorrosion coatings significantly influences their ability to seal micropores/cracks and enhance self-healing properties. In this study, a novel dual-responsive nanocontainer loaded with the corrosion inhibitor benzotriazole (BTA) was developed for active corrosion protection in waterborne epoxy coatings. The magnetic nanocontainers (Fe 3 O 4 @BTA-ZIF-8) were synthesized via the in-situ growth of BTA-encapsulated zeolitic imidazolate frameworks-8 (ZIF-8) on the surface of anion-modified Fe 3 O 4 nanoparticles. This unique structure endows the nanocontainers with pH responsiveness for controlled BTA release under corrosive conditions. Additionally, under an external magnetic field, the nanocontainers migrate toward the coating/metal interface, increasing the local inhibitor concentration and improving corrosion resistance. Potentiodynamic polarization tests revealed that the nanocontainers achieved an inhibition efficiency of 82.40 % on carbon steel surface after 24 h of saline immersion. Cross-sectional analysis of the composite coatings confirmed the magnetic-field-induced accumulation of nanocontainers at the coating/substrate interface, facilitating rapid and efficient inhibitor release. Electrochemical impedance spectroscopy results further revealed a low frequency impedance value (|Z| 0.01 Hz ) of 1.42 × 10 10 Ω·cm 2 for epoxy coating containing magnetically distributed Fe 3 O 4 @BTA-ZIF-8 nanocontainers after 35 d of saline immersion, over an order of magnitude higher than that of coating without magnetic modulation. Furthermore, the scratched composite coating after magnetic modulation exhibited an improvement efficiency (η) of 165.04 % after 6 h of immersion, compared to only 22.76 % for the non-modulated counterpart. These results confirm the long-term protective performance of Fe 3 O 4 @BTA-ZIF-8 within epoxy coatings under magnetic modulation. This study is the first to introduce a magnetic MOF-based nanomaterial for corrosion protection, demonstrating the potential of epoxy coatings with magnetically directed distribution and pH-responsive inhibitor release.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Donglin Jiang,Yuanyuan Xie,Zezhi Chen,Huijuan Gong,Huiqiang Yu,Lu Chen
Zeolitic Imidazolate Framework-8 (ZIF-8) shows potential as a carbonic anhydrase-mimicking catalyst for enhancing carbon dioxide (CO 2 ) absorption in industrial decarbonization solvents. This study synthesized ZIF-8 with high Brunauer-Emmett-Teller (BET) specific areas and their dopamine-modified hydrophilic derivatives (ZIF-8-DA) via a one-step method, aiming to maximize ZIF-8’s catalytic performance in CO₂ hydration. Both ZIF-8 and ZIF-8-DA effectively promoted CO₂ absorption in water and alkaline solvents, with excellent stability and reusability. Among them, ZIF-8-DA (220) exhibited the highest catalytic activity, achieving absorption enhancement efficiencies of 95.54% in water, 35.26% in diethanolamine (DEA) solution, and 18.42% in potassium carbonate (K₂CO₃) solution. Compared with ZIF-8, ZIF-8-DA showed better water dispersibility-a key to its higher activity. Dopamine modification significantly improved the hydrophilicity of ZIF-8, enabling stronger interactions with CO₂ in the aqueous phase and facilitating nucleophilic attack on CO₂. Importantly, the modification preserved ZIF-8’s structure, ensuring reusability across multiple absorption cycles. This research underscores that ZIF-8-DA with high BET specific area holds substantial potential as an efficient and durable carbonic anhydrase- mimicking catalyst for industrial CO₂ capture.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Qiuyang Huang,Zhuofan Gao,Pengcheng Yan,Zhihui Zhou,Hongdan Wu,Jiazheng Li,Wei Han,Zhuo Huang,Xia Chen,Xian Zhou,Yuan Xiang,Lei Chen,Zeyu Fan,Ziling Peng,Qi Lu,Ji Wu
This study introduces an innovative approach to fabricating a poly ether ketone (PEEK)-based thin-film nanocomposite (TFN) nanofiltration membrane. Ultrafine polydopamine (PDA) modified zeolitic imidazolate framework-8 (ZIF-8) nanoparticles were integrated into the polyamide (PA) layer through a process of interfacial polymerization. The impacts of PDA@ZIF-8 nanoparticle loading on composite membranes were examined, and their separation performances with different solvents and small molecular organics with various molecular weights and charges were evaluated. The PDA modification is credited with inducing a thinner, less crosslinked PA layer, culminating in the formation of a selective barrier that is both loose and ultra-thin, improving the separation capabilities of membranes. The TFN-3 membrane, with a 0.01 wt% loading of PDA@ZIF-8 nanoparticles, emerged as a standout, demonstrating notably enhanced hydrophilicity. The pure water and organic solvent permeances through the TFN-3 membrane were remarkably enhanced, with recorded values of 6.19 ± 0.26 L h −1 m −2 bar −1 for pure water and 3.44 ± 0.21 L h −1 m −2 bar −1 for methanol. Furthermore, the TFN-3 membrane showcased impressive molecular retention in ethanol solutions for compounds with a molecular weight cut-off (MWCO) of 464 g/mol. The PEEK-based TFN-3 membrane also exhibited exceptional creep resistance, ensuring consistent performance during long-term testing. In a 5-day ethanol separation test, the TFN-3 membrane maintained a Rose Bengal (RB) retention rate exceeding 99%, underscoring its stability and reliability. The newly developed PEEK-based TFN membrane not only promises robust solvent resistance and stability but also delivers efficient separation and purification capabilities. It holds great potential for offering effective and sustainable solutions across a spectrum of industries, particularly in pharmaceutical production and chemical processing, where the separation, recovery, and purification of solvents are paramount.
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Mu Li,Jingwen Luo,Jianjiang Lu,Wentao Shang,Jiale Mu,Feiyun Sun,Zijun Dong,Xiaoyan Li
A novel Polyacrylonitrile (PAN) composite membrane involving ZIF-8 nanoparticles , named as ZIF-8/PAN membrane, was obtained via electrospinning to remove the Congo red (CR), Pb(II) and Cu(II) ions in industrial wastewaters , during which the adsorption mechanisms were examined in this study. The adsorption efficiency of the electrospun ZIF-8/PAN membrane was as high as 89%, 92% and 76% for CR, Pb(II) and Cu(II), respectively. Comparative analysis showed that ZIF-8 nanoparticles embedded in the ZIF-8/PAN membrane accounted for these enhanced adsorption capabilities. The adsorption behaviors of the ZIF-8 nanoparticles were investigated through experiments and theoretical analysis, and the results unraveled that the adsorption for CR by the ZIF-8 was mainly including electrostatic interaction, hydrogen bonding and π − π interaction, while those for Pb(II) and Cu(II) were mainly caused by ion-exchange and chemical adsorption. Parametric studies were conducted to optimize the conditions for removing CR, Pb(II), and Cu(II) by ZIF-8 nanoparticles, during which all of pollutants showed different reactions to the solution pH. This work not only develops a novel ZIF-8/PAN composite membrane for effective removals of pollutants, but also reveals the underlying mechanisms of pollutants adsorption in terms of molecular interactions, providing important understandings on fibrous materials design for efficient heavy metals and dyes removals in industrial wastewater treatment .
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）