JOURNAL OF MOLECULAR LIQUIDS
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2023
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IF 6
Hongyu Liu,Mengxin Xie,Bingli Pan,Bingchan Wang,Longlong Zhang,Yuxuan Zhou,Ning Li,Enxi Yue,Honggang Wang
The synergistic effect of nanoparticles can effectively improve the tribological performances of base oils. In this study, a novel lubricant additive by embedding 2D FeOCl on 2D Zn − MOF was reported for the first time in order to boost the tribological performances of polyethylene glycol (PEG200). The FeOCl/Zn − MOF prepared by a facile microwave assisted strategy was found to be a typical flower-like appearance, where FeOCl nanosheets decorated on the surface of Zn − MOF sheets. Owing to the electron transfer and synergistic effect between FeOCl and Zn − MOF, the novel FeOCl/Zn − MOF effectively reduced the coefficient of friction by 48 % and wear scar diameter by 88 % at the loading of 0.4 wt% FeOCl/Zn − MOF in the base oil. The work suggests the face-to-face combination of FeOCl and Zn − MOF for enhanced tribological performances, representing a new strategy to prepare efficient lubricant additives using assembled 2D nanomaterials.
研究领域:
材料科学
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机械工程
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产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2022
·
IF 4.831
Kunming Sun,Tinghui Deng,Jing Sun,Shuo Gao,Huwei Liu,Shuyun Zhu,Xian-En Zhao
Artemisinin (ART) is a type of frontline drug to treat drug-resistant falciparum malaria. Simple, accurate and selective determination of ART is significant to monitor its clinical pharmaceutical efficacy. Herein, a new ratiometric fluorescence method has been designed for the determination of ART with Zn-MOF as fluorescence reference and hemin as catalyst, respectively. Zn-MOF possesses intrinsic fluorescence at 443 nm owing to 2-aminoterephthalic acid ligand. When o -phenylenediamine (OPD) is mixed with hemin, a weak fluorescent signal at 570 nm ascribed to oxidized product of OPD (oxOPD) is observed. In the presence of ART, hemin can catalyze ART to break its peroxide bridge and release a large number of reactive oxygen species, which effectively oxidize OPD into luminescent oxOPD. Therefore, the fluorescence at 570 nm is enhanced significantly while the fluorescence of Zn-MOF remains basically unchanged. Thus, a ratiometric fluorescence sensing platform has been constructed for the detection of ART. This method exhibits wider linear range (0.15 μM-150 μM) with detection limit of 50 nM. This novel and selective method has been used to detect ART in compound naphthoquinone phosphate tablets.
研究领域:
药学
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分析化学
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生物医学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2019
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IF 3.131
Ming Yang,Qianhui Bai
Water pollution has become a great problem and aroused worldwide concern. As a new class of materials, metal-organic frameworks (MOFs) exhibit significant potential for wastewater treatment due to their high surface area, porosity, stability and tunability. In this work, flower-like hierarchical Ni-Zn MOF microspheres were synthesized via a facile solvothermal method. The mole ratio of Ni to Zn had a great influence on the morphology and microstructure of the final products. With the increase mole ratio of Zn to Ni, the morphology of MOFs gradually changed from spheroidal structure to rod-like structure. Using the Congo red (CR) experiment to evaluate the adsorption performance, Ni-Zn MOF displayed superior adsorption capacity towards CR (460.90 mg g −1 ), compared with Ni MOF (276.70 mg g −1 ) and Zn MOF (132.20 mg g −1 ). Besides the tuned morphology and pore structure, electron transferring from Zn species to Ni species would also favor the physicochemical adsorption of Ni-Zn MOF towards CR.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
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2023
·
IF 4.8
Ying-ying Hu,Xiao-qin Wu,He-ping Shi,Xue-hong Wei
The nature of amino acids as the building blocks of proteins leading to detection and identification is a current hot topic. Therefore, {[Zn 3 (L − ) 2 (HBTC 2− ) 2 ]·2H 2 O·CH 3 CN} n ( Zn-1 , H 3 BTC = 1,3,5-benzenetricarboxylic acid, HL = 6-aminonicotinic acid, CH 3 CN = acetonitrile), a 2D Zn-MOF which can sensitively detect and selectively recognize D -tyrosine was synthesized by solvothermal method . Identification of D -tyrosine was determined by increasing fluorescence intensity and red-shifting of the emission wavelength . Zn-1 is highly stable in methanol (MeOH) and aqueous solution (H 2 O), so it was dissolved in them as fluorescence probes, namely Zn-1/MeOH probe and Zn-1/H 2 O probe , respectively. The two probes worked for lower limits of detection, 8.93 × 10 −2 μM for Zn-1/MeOH probe and 79.70 × 10 −2 μM for Zn-1/H 2 O probe . The Stern-Volmer quenching constant of Zn-1/MeOH probe is 1.28 × 10 4 M −1 and of Zn-1/H 2 O probe is 4.55 × 10 2 M −1 . In addition, the two probes still show excellent immunity to interference under the interference of 18 amino acids. Zn-1/H 2 O probe was also applied to the determination of D -tyrosine in real milk samples with good results. This study provides a fast, simple, convenient and relatively accurate method for detecting D -tyrosine.
研究领域:
生物化学
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分析化学
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材料科学
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DOI
高影响因子
Electrocatalysis
·
2021
·Vol. 12
·期 4
·456-468
·
IF 2.713
Huang Dihui,Huang Xiaozhou,Chen Jinyang,Ye Ruihong,Lin Qian,Chen Sheng
This work constructed a new-type bisphenol A (BPA) electrochemical sensor on the basis of self-assembled multi-layer strategy of Ce-Zn-metal organic framework/multiwall carbon nanotube (Ce-Zn-MOF/MWCNT)–modified glassy carbon electrodes (GCE). The novel bimetallic Ce-Zn-MOF are synthesized by 1,3,5-benzenetricarboxylic acid (H 3 BTC) as the ligand via a hydrothermal approach. Bimetallic Ce-Zn-MOF with multiple catalytic sites and ultra-high specific surface area introduces traditional electrode modification materials, which improves the conductivity and catalytic ability of MWCNTs. Field emission scanning electron microscopy, transmission electron microscope and Powder X-ray diffraction were performed to analyze the Ce-Zn-MOF/MWCNTs. The electrochemical property was researched utilize differential pulse voltammetry (DPV), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). In the optimum conditions, the proposed sensor exhibited a wider dynamic linear range of BPA determination in 0.1 to 100 μmol·L −1 with a detection limit of 7.2 nmol·L −1 ( S / N = 3). This measurement of BPA was successfully used for drinking water with desirable recovery from 96.5 to 103.4%. Graphical Abstract
研究领域:
分析化学
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环境科学
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材料科学
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DOI
高影响因子
PETROLEUM SCIENCE AND TECHNOLOGY
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2023
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IF 1.5
Jue Wang,Heng Zhang,Wei Wu,Zeyun Wang
Use of the synergistic effect between nanomaterials and ionic liquids is of great significance for designing high-performance lubricating materials. In this work, Zn-MOF/[P88814]DEHP (zinc complexes with 2-aminoterephthalic acid nanosheets/trioctyltetradecylphosphonium bis (2-ethylhexyl) phosphate) composites were successfully synthesized by grinding the mixture of [P88814]DEHP and Zn-MOF with different mass ratios and evaluated as a new kind of the white oil additive using a four-ball testing machine. Results demonstrate that the optimal mass ratio of Zn-MOF to [P88814]DEHP was 1:1 and the Zn-MOF/[P88814]DEHP composite with 2.0 wt% addition amount into the white oil significantly reduced friction coefficient and wear. Such obvious friction-reducing and outstanding anti-wear properties of Zn-MOF/[P88814]DEHP composite could be attributed to the synergistic lubrication between Zn-MOF and [P88814]DEHP. This work investigated the synergistic lubrication between MOFs and ILs, which provided a new idea for designing and preparing new lubricating oil additives.
研究领域:
材料科学
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润滑工程
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产品关联
DOI
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
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2023
·Vol. 21
·期 1
·1-12
·
IF 10.2
Qiu Lirong,Ouyang Chengcheng,Zhang Wei,Liu Jia,Yu Luting,Chen Guoguang,Ren Lili
Atopic dermatitis (AD) is a chronic and recurrent inflammation disease associated with immune dysfunction. The high level of reactive oxygen species (ROS) causes high oxidative stress and further results in the deterioration of AD. At the same time, the ROS produced by bacterial infection can further aggravate AD. Here, the prepared PVA-based hydrogel (Gel) has a high ROS scavenging ability, and the antibacterial agent Zn-MOF(ZIF-8) loaded into the hydrogel shows a lasting and effective antibacterial activity. Thus, a Zn-MOF hydrogel (Gel@ZIF-8) is prepared to regulate ROS-mediated inflammatory microenvironment. In vitro experiments show that Gel@ZIF-8 has good antibacterial effect and cell biocompatibility. In the AD-induced mouse model, Gel@ZIF-8 can significantly enhance the therapeutic effect, such as reduce the thickness of epidermis, the number of mast cells and IgE antibodies. The results indicate that the ROS-scavenging hydrogel could treat the AD by regulating the inflammatory microenvironment, providing a promising treatment for managing AD.
研究领域:
生物材料学
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免疫学
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皮肤病学
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DOI
PubMed
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2025
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IF 4.7
Junru Li,Hui Wang,Xuefei Wang,Jinmei Ye,Xiaodong Wang,Bingchun Xue
In this study, a bimetallic nickel-doped Zn-MOF (Ni@Zn-MOF) was successfully fabricated by the hydrothermal method for the removal of norfloxacin (NOR) in pharmaceutical wastewater. The structural and surface characteristics of Ni@Zn-MOF were systematically characterized using SEM-EDS, BET, XRD, FT-IR, XPS, and Zeta potential analyses. The experimental results demonstrated that NOR could be effectively removed within a wide pH range from 3 to 11, achieving a maximum removal efficiency of approximately 94% under optimal adsorption conditions. The adsorption behaviors of NOR were in good accordance with the pseudo-second-order kinetic model and the Freundlich isotherm model. The adsorption mechanism study revealed that the good adsorption performance originated from the synergistic effects of multiple interactions, including pore filling, metal coordination, electrostatic attraction, hydrogen bond, and π-π stacking interactions. Notably, the adsorption-saturated Ni@Zn-MOF demonstrated exceptional regeneration capability and stability, maintaining removal efficiencies above 60% for NOR after five consecutive adsorption-desorption cycles. The current study suggests that the engineered Ni@Zn-MOF nanocomposite can be as a promising functional material for sustainable removal of residual antibiotic contaminants in practical wastewater treatment applications.
研究领域:
环境科学
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材料科学
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污染治理
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产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2024
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IF 9.7
Wanru Feng,Jingya Zhang,Jianguo Mi,Junsu Jin,Guolei Xiang,Hong Meng,Shisen Xu
The synthesis of structured CO 2 adsorbents with high separation selectivity, strong stability, and low cost to meet industrial needs is very challenging. Here, we synthesized an ultra-stable Zn-MOF (Zn 2 (3-amion-1,2,4-triazolate) 2 (oxalate), Zn 2 (Atz) 2 Ox), and adopted an efficient in-situ growth strategy to produce millimeter-sized spherical Zn 2 (Atz) 2 Ox@AFP (Amino-Functionalization Poly(acrylates), AFP) composite. Due to the heterogeneous crystallization induced by the nanoscale crystal seeds and the confined space of AFP, the three-dimensional (3D) Zn 2 (Atz) 2 Ox bulk crystals transformed into 2D nanosheets with higher CO 2 adsorption efficiency and faster kinetics. Zn 2 (Atz) 2 Ox@AFP has a high affinity for CO 2 (2.05 mmol g −1 at 0.05 bar and 313 K) while exhibiting an inhibitory effect for N 2 (only 0.051 mmol g −1 at 1.0 bar and 313 K), leading to an excellent ideal adsorbed solution theory (IAST) selectivity (2990 for CO 2 /N 2 (5/95, v/v)). Interestingly, Zn 2 (Atz) 2 Ox@AFP exhibits a unique gating effect on CH 4 adsorption, which further extends its application range to natural gas purification. Dynamic breakthrough experiments confirmed that Zn 2 (Atz) 2 Ox@AFP can selectively capture CO 2 in the simulated CO 2 /N 2 (5/95) and CO 2 /CH 4 (5/95) mixed gases.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Zhi Luo,Jing Li,Shenglan Hu,Lingling Zheng,Lixin Xu,Biyang Deng
In this study, Ru(bpy) 3 2+ and oxalate (C 2 O 4 2− ) in Ru@Zn-MOF generated self-enhanced electrochemiluminescence (ECL). The self-enhanced ECL composite exhibited a short electron transfer distance and minimal energy loss, which ensured the high and stable luminescence efficiency of Ru@Zn-MOF. A MnO 2 @AuNPs nanocomposite was introduced into Ru@Zn-MOF via antigen–antibody interactions in the presence of squamous cell carcinoma antigen (SCCA). This significantly quenched the ECL signal due to the combined effect of the dual quenchers, MnO 2 NFs and AuNPs. A highly efficient ECL-RET immunosensor was constructed for the sensitive detection of SCCA in the linear range of 1 fg/mL to 100 ng/mL, with a limit of detection of 0.26 fg/mL (S/N = 3). This immunosensor has broad clinical applications for the quantitative detection of biomarkers.
研究领域:
生物医学工程
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分析化学
·
肿瘤学
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产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2018
·
IF 5.123
Yuanyuan Li,Xue Hu,Xiaodan Zhang,Haiyan Cao,Yuming Huang
Contrary to organic solvent-induced aggregation of Au nanoclusters (AuNCs), herein, we reported aggregation induced emission enhancement (AIEE) of AuNCs in an aqueous media through confinement of AuNCs by in situ formed Zn-MOF for detecting Zn 2+ . Glutathione capped AuNCs (GSH-AuNCs) was synthesized through reduction of Au 3+ by glutathione. Zn 2+ could significantly enhance the fluorescence of GSH-AuNCs upon addition of 2-methylimidazole, which was attributed to the formation of Zn-MOF. XRD and TEM were used to characterize the in situ formed Zn-MOF. Zn 2+ induced aggregation was demonstrated by dynamic light scattering and TEM. The quantum yields (QYs) of AuNCs after aggregation induced by in situ formed Zn-MOF attained to 36.6%, which was nearly 9 times that of the sole AuNCs. On this basis, a fluorogenic sensor was reported for Zn 2+ detection with a linear range from 12.3 nM to 24.6 μM and a detection limit of 6 nM (S/N = 3). The proposed sensor was successfully applied to assay the content of zinc in human serum, milk, water, and zinc sulfate syrup oral solution samples. The novel strategy proposed in this work may open a new window of interest in an unconventional application of gold nanoclusters/MOF nanoscale platform for metal ion detection and nutritional assessment of food.
研究领域:
分析化学
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材料科学
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生物医学
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2022
·
IF 9.231
Zhuo Sun,Juan Lu,Xin Zhang,Xiangyu Shan,Qian Wu,Chao Li,Huiling Li,Shuning Yang,Li Tian
In this work, Zn-MOF electrospun nanofibres (Zn-MOF NFs), CdTe and Au@Pt-rGo were applied to Ru(bpy) 3 2+ /tri- n -propylamine electrochemiluminescence (ECL) system. And a novel ECL sensor for the determination of fenpropathrin was constructed for the first time. Due to the large surface area and pores, Zn-MOF NFs can both carry CdTe and Au@Pt-rGo and promote luminescence by facilitating electron transfer and reducing electron transport paths. CdTe participated in the luminescence reaction and improved the system’s sensitivity together with Ru(bpy) 3 2+ . Au@Pt-rGo can promote electron transport in the system. Under the synergistic effect of the three, the ECL sensor had achieved satisfactory results in weak alkaline solution. The constructed ECL sensor can detect fenpropathrin in the range of 4 × 10 −11 –4 × 10 −6 M, and the detection limit was 1.33 × 10 −11 M (S/N = 3). It can be used to detect fenpropathrin in juice samples, which provided a new idea for determining fenpropathrin.
研究领域:
分析化学
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环境科学
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食品安全
✓ 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）