JOURNAL OF HAZARDOUS MATERIALS
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2023
·
IF 13.6
Shi-Xian Guan,Tao Xu,Jian-Yong Zhang,You-Guo Luo,Xingwu Zhai,Na Zhang,Yong-Zheng Fang,Qin-Fei Ke
Herein, we developed a multimodal antibacterial nanoplatform via synergism effect including knife-effect, photothermal, photocatalytic induced reactive oxygen species (ROS), and Cu 2+ inherent attribute. Typically, 0.8-TC/Cu-NS possesses higher photothermal property with the higher photothermal conversion efficiency of 24% and the moderate temperature up to 97 °C. Meanwhile, 0.8-TC/Cu-NS exhibits the more active ROS, 1 O 2 and ·O 2 - . Hence, 0.8-TC/Cu-NS possesses best antibacterial properties against S. aureus and E. coli in vitro with efficiency of 99.94%/99.97% under near-infrared (NIR) light, respectively. In the therapeutic practical use for wound healing of Kunming mice, this system exhibits outstanding curing capacity and good biocompatibility. Based on the electron configuration measurement and density functional theory (DFT) simulation, it is confirmed that the electrons on CB of Cu-TCPP flow fleetingly to MXene trough the interface, with redistribution of charge and band upward bending over Cu-TCPP. As a result, the self-assembled 2D/2D interfacial Schottky junction have made great favor to accelerate photogenerated charges mobility, hamper charge recombination, and increases the photothermal/photocatalytic activity. This work gives us a hint to mostly design the multimodal synergistic nanoplatform under NIR light in biological applications without drug resistance.
研究领域:
材料科学
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纳米技术
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生物医学工程
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化学
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生物学
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产品关联
DOI
PubMed
高影响因子
Advanced Electronic Materials
·
2025
·Vol. 11
·期 8
·2400738
·
IF 5.3
Guodong Han,Song Zhao,Sai Sui,Bo Feng,Yudeng Wang,Junxiang Zhou,Zhuolun Li,Xiaoxia Tian,Yuxiang Jia,Jiafu Wang,Shaobo Qu
Metal–Organic-Frameworks (MOFs) are commonly used as microwave-absorbing materials after pyrolysis treatment. Rare researchers treat MOFs as non-conductive materials and use them as absorbing materials directly. In this paper, MOFs@P-C-800 composite materials are prepared adopt to hydrothermal and ultrasonic dispersion methods by regulating the morphological characteristics of MOFs and the content of P-C-800. As for the Co-BDC-P-C-800, the maximum reflection loss reaches −18.4 dB at 14.29 GHz and the effective absorption bandwidth (EAB) achieves 3.87 GHz from 13.5 to 17.37 GHz. After the contents of P-C-800 is adjusted, the Co-BDC-P-C-800 (0.05 g) exhibited excellent microwave absorption performance, the maximum RL value of −60 dB at 13 GHz with a thickness of 2.0 mm, and the EAB achieves 5.91 GHz from 12.02 to 17.93 GHz. This paper not only provides new application direction for MOFs, but also offers a promising direction for the research and development of absorbing materials.
研究领域:
材料科学
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微波吸收材料
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纳米复合材料
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电磁功能材料
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 11
·5900
·
IF 6.208
Zhangzhen Cai,Qi Liu,Haoxin Li,Jingyi Wang,Guoyu Tai,Fan Wang,Jiangang Han,Yongli Zhu,Guangyu Wu
Recently, metal–organic frameworks (MOFs), which are porous inorganic–organic hybrid materials consisting of metal ions (clusters or secondary building units) and organic ligands through coordination bonds, have attracted wide attention because of their high surface area, huge ordered porosity, uniform structural cavities, and excellent thermal/chemical stability. In this work, durian shell biomass carbon fiber and Fe3O4functionalized metal–organic framework composite material (durian shell fiber-Fe3O4-MOF, DFM) was synthesized and employed for the adsorption removal of methylene blue (MB) from wastewater. The morphology, structure, and chemical elements of the DFM material were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), transmission electron microscope (TEM), and X-ray photoelectron spectroscope (XPS) techniques. Adsorption conditions such as pH, adsorption time, and temperature were optimized. The adsorption isotherm and kinetics results show that the adsorption process of DFM material to MB is more in line with the Freundlich model and pseudo-second-order kinetic model. Using these models, the maximum adsorption capacity of 53.31 mg/g was obtained by calculation. In addition, DFM material could be easily reused through an external magnet and the removal rate of MB was still 80% after five adsorption cycles. The obtained results show that DFM composite material, as an economical, environmentally friendly, recyclable new adsorbent, can simply and effectively remove MB from wastewater.Keywords:biomass fibers;durian shell;magnetic composite;adsorption
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
Nano Today
·
2024
·
IF 13.2
Qizhi Liang,Qianxi Zhou,Hai Shi,Shuai Wu,Jiahua Yang,Tianyu Zeng,Jing Zhao,Yongmei Yin,Genxi Li
The controllable assembly of metal-organic frameworks (MOFs) nanomaterials is an effective means to enhance their application capabilities. In this paper, a novel method is reported to control MOFs assembly by using a DNA framework material, a tetrahedral DNA nanostructure (TDN) labeled with phosphate groups at the vertex. In particular, various well-defined superstructures can be tailored by regulating the number of phosphate groups that coordinate with catalytic Zr-MOFs to create polymeric MOFs superstructures (Poly(MOFs)), exhibiting excellent catalytic activities and molecular recognition ability as well as greatly amplified signal readout. Furthermore, based on the DNA framework-controlled Poly(MOFs), a colorimetric biosensor with excellent analytical performance is fabricated for improving the diagnosis of human epidermal growth factor receptor 2 (HER2)-positive breast cancer. It is demonstrated that the quantification of HER2 protein can be achieved at molecular level with the limit of detection (LOD) of 12 pg L -1 and cellular level with the LOD of 10 cells. More importantly, the detection of HER2 in the serum of breast cancer patients have been achieved, thus HER2-positive and triple-negative breast cancer patients can be well distinguished. Considering the substitutability of the target, this study shows great potential in biomedical research as well as clinical applications.
研究领域:
材料科学
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纳米技术
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生物医学工程
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癌症诊断
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2019
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IF 6.97
Lei Wang,Wenjing Zhi,Jing Wan,Juan Han,Chunmei Li,Yun Wang
Enhancing the stability and reusability of enzymes by encapsulating them within a powerful class of porous materials termed metal–organic frameworks (MOFs) has been demonstrated by recent studies. However, in all of these reports, the stability of MOFs under acidic conditions was a major issue for enzymes with catalytic activity at low pH. The objective of this study is to encapsulate the β-glucosidase (β-G) into the Cu-MOF due to its acidic stability, using a coprecipitation approach. Indeed, the as-prepared β-G@Cu(PABA) biocomposite with high encapsulation efficiency exhibited enhanced resistance to acidic and thermal conditions as well as organic solvents. Importantly, the β-G@Cu(PABA) biocomposite showed superior reusability, retaining 90% of activity even after 10 cycles. Using the hydrolysis of carboxymethylcellulose (CMC) as a mode, the mixture of β-G@Cu(PABA) biocomposite and coimmobilized cellulase afforded 98% glucose yield, which was twofold enhancement when compared with coimmobilized cellulose alone. The β-G@Cu(PABA) biocomposite and coimmobilized cellulase could been easily recovered and recycled to still retain 70% productivity in the eight cycles for hydrolyzing CMC. This discovery for the first time highlights the potential of Cu-MOF in preserving the enzymes under acidic conditions. The developed β-G@Cu(PABA) biocomposite by coprecipitation approach affords a valuable platform for enzyme-based industrial applications.
研究领域:
生物化学
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材料科学
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生物技术
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产品关联
DOI
高影响因子
ANALYST
·
2018
·Vol. 144
·期 2
·649-655
·
IF 3.864
Siyuan Li,Song Yue,Chao Yu,Yiyu Chen,Dong Yuan,Qiubo Yu
In this study, a new, simple, and label-free electrochemical immunosensor was presented for the detection of nuclear matrix protein-22 (NMP-22). In order to accurately monitor very small amounts of NMP-22, it was advantageous to use highly efficient nanomaterials as signals. For this reason, we synthesized a chrysanthemum-like nanocomposite (Co-MOFs/CuAu NWs), using Co-based metal–organic frameworks (Co-MOFs) as carriers and copper gold nanowires (CuAu NWs) wrapped around their surface, which was applied for modifying a glassy carbon electrode (GCE). The Co-MOFs/CuAu NWs possessed outstanding catalytic capabilities, which served as signal materials and simultaneously carried the anti-NMP-22 antibody (Ab). When different concentrations of the NMP-22 antigen (Ag) were specifically attached to the immunosensor, the current responses decreased by varying degrees. The designed biosensor used the principle to establish a linear regression equation and achieve an accurate quantification of NMP-22. After optimization, the NMP-22 sensor exhibited a good linear response over a concentration range from 0.1 pg mL−1 to 1 ng mL−1, with a lower detection limit of 33 fg mL−1 (based on S/N = 3). The proposed biosensor demonstrated the advantages of ultra-sensitivity, high specificity and acceptable reproducibility, suggesting that the proposed strategy has the potential for the quantification of NMP-22 in human urine samples. Moreover, the novel nanocomposite Co-MOFs/CuAu NWs are promising materials for electrochemical sensors to detect other biomolecules.
研究领域:
生物化学
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分析化学
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纳米技术
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生物传感器
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Junjie Li,Xiaodan Sun,Sidra Subhan,Wenxue Gong,Wenyuan Li,Wenqing Sun,Yuming Zhang,Mengting Lu,Hongbing Ji,Zhongxing Zhao,Zhenxia Zhao
The novel Cu-based bimetal polycrystal@carbon (C-HK(Cu/M)) composites derived from metal (Ni, Zn and Co) in-situ substituted Cu-based HKUST-1 were successfully fabricated by partial reduction strategy and employed for the reduction of 4-nitrophenol (4-NP). Systematic characterization demonstrated that Ni showed stronger orbital hybridization with Cu than Zn and Co, thereby significantly improving the catalytic properties of the C-HK(Cu/Ni) composite. The presence of Ni in HKUST-1 efficiently inhibited the reduction of adjacent Cu clusters, leading to the generation of unique polycrystal NiO/Cu/CuO nanohybrids (2.4–8.0 nm) with high dispersion (Cu exposure reaching 88.5%). While, the MOF ligands were catalyzed by doping Ni into the conductive and porous carbons, and finally engineered interfacial synergistic catalysis for enhancing the kinetics and stability for the reduction of 4-NP. The porous support accelerated 4-NP diffusion and adsorption in the composite, and as a consequence, the surrounding polycrystal nanohybrids on conductive carbon were responsible for producing hydrogen reducing species for 4-NP reduction. Therefore, C-HK(Cu/Ni) exhibited ultrafast kinetics and turnover frequency (TOF) for 4-NP reduction, which were up to 179 and 14 times higher than parent C-HK(Cu), surpassing the current state-of-the-art noble metal catalysts. Moreover, the activity of C-HK(Cu/Ni) was evaluated for six consecutive runs with minimal loss, demonstrating the high reusability and practicability of the catalyst on an industrial scale.
研究领域:
材料科学
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催化化学
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环境科学
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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
Zhendong Fu,Feng Guo,Jiahe Qiu,Runchi Zhang,Mingxu Wang,Liping Wang
2-Methylimidazole (MIM) is a classic organic ligand that shows excellent thermal stability and chemical robustness and is widely used in ZIFs. Recently, transformations of MOFs have been realized by using metals or ligands. In this study, we propose a new strategy—adjusting MIM by extending the alkyl chain length —to change the properties of related MOFs. Furthermore, we used copper as the metal core to replace zinc to mimic the active sites of laccases (electron transfer between copper and imidazole ring). As a result, the nanostructures transformed from nanoleaves to nanovesicles, which changed the Cu(II)/Cu(I) ratio from 3.7 to 1.7, as well as the lattice constant (decreased the diffraction angle) and enzyme-like activity (inhibition). In addition, we revealed that superoxidase anions were the main factors responsible for its laccase-like activity. We applied it to detect and discriminate phenolics. Laccase-mimicking activity was best at pH 7.0. When compared to protein laccase, the Cu-MeIm nanozyme had a greater Vmax at the same mass concentration. It was used to identify and distinguish phenolics. In the presence of Cu-MeIm nanozymes, the linear range is 0.1–2 mM and the detection limit of 2,4-DCP is 0.034 mM.
研究领域:
材料科学
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纳米技术
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分析化学
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生物化学
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酶学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2020
·Vol. 9
·期 1
·238-248
·
IF 7.059
Qigao Shang,Nannan Liu,Dan You,Qingrong Cheng,Guiying Liao,Zhiquan Pan
Two coordination polymers, {[Cu3(tib)4(NO3)4(H2O)]·2NO3·2.96H2O}n (1) and {[Ni(tib)2]·2NO3}n (2), were synthesized by a solvothermal reaction using a flexible tripodal ligand, 1,3,5-tris(imidazol-1-ylmethyl)benzene (TIB), and metal salts; the polymers were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and UV-vis diffuse reflectance spectra. The two complexes exhibited excellent active performance for photodegradation of tetracycline (TC) and photocatalytic hydrogen evolution under visible light. Control experiments revealed clearly that the pH value plays an important role in TC degradation, especially in alkaline solution; 93.21% of tetracycline was degraded by complex 1 within 60 min. In addition, using a Pt cocatalyst, the visible-light-driven photocatalytic H2 evolution rate of complex 2 reached 681.66 μmol h−1 g−1. Moreover, the photocatalysts can remain stable and retain high photocatalytic activity after several cycles of reuse. These MOF-based photocatalysts will provide new efforts for environmental purification and hydrogen evolution.
研究领域:
环境科学
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材料科学
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化学
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催化
·
可持续能源
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2021
·Vol. 13
·期 16
·7801-7809
·
IF 7.79
Wanguo Gao,Xiaoman Li,Xu Zhang,Senda Su,Shijian Luo,Rong Huang,Yuan Jing,Min Luo
The vacancies of semiconductors have proven to be effective active sites for photocatalytic nitrogen fixation, but what about the role of defects in MOF materials? Herein, we report the first UiO-66 with photo-excited cluster defects and linker defects for photocatalytic nitrogen fixation. It was determined through the post-synthetic ligand exchange (PSE) process that the linker defects, rather than cluster defects, can greatly improve the performance, which is due to linker defects forming unsaturated metal nodes such as the vacancy in a semiconductor. Specifically, for photo-activated UiO-66, the NH4+ production rate was 196 and 68 μmol g−1 h−1 in air atmosphere under ultraviolet-visible (UV-Vis) and visible light, respectively. This report provides a new effective strategy to design efficient nitrogen fixation photocatalysts.
研究领域:
材料科学
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化学
·
催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2020
·
IF 3.807
Jianbo Liu,Yonghui Shang,Jinqiong Xu,Yi Chen,Yarong Jia,Jianbin Zheng
Carcinoembryonic antigen (CEA) is a typical biomarker for lung cancer. It is very urgent to develop a sensitive and rapid method to assay CEA content in human serum. In this work, Cu-MOFs nanomaterials were synthesized by a hydrothermal method . Toluidine blue (TB) loaded mesoporous Cu-MOFs with polydopamine (PDA) coating were employed as a signal probe. The proposed sandwich immunosensor was fabricated by Cu-MOFs-TB/PDA, chitosan and MWCNTs on the glassy carbon electrode with a large surface area to immobilize primary antibodies (Ab 1 ) and provide excellent conductivity. The sensitivity improvement of this new strategy was based on the destruction of the probe and the immune complex by HCl, which resulted in the closer distance between TB and the sensing electrode. Under optimal conditions, CEA was quantitatively detected with a wide linear range from 20 fg mL −1 to 200 ng mL −1 , a low detection limit of 3.0 fg mL −1 (S/N = 3). In addition, the method showed good stability, selectivity, and reproducibility, which possessed wide potential applications for the detection of other tumour biomarkers.
研究领域:
分析化学
·
生物标志物检测
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纳米技术
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电化学
·
癌症诊断
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2021
·
IF 3.205
Guangyang Liu,Mingshuo Tian,Meng Lu,Weiye Shi,Lingyun Li,Yuhang Gao,Tengfei Li,Donghui Xu
Detection of low levels of triazole fungicides in agricultural product matrices is important. Although several detection methods have been developed, all have some drawbacks, such as being time-consuming, requiring complex sample pretreatment, and consuming large volumes of organic solvents. There is an urgent need for a simple and rapid detection method for triazole fungicides. In this study, the adsorbent composite material magnetic MOFs based on Fe 3 O 4 -MWCNT was synthesized by in-situ polymerization at room temperature, and was applied to extract triazole pesticides from fruits and vegetables. High-performance liquid chromatography-tandem mass spectrometry was used for quantification. Under optimized conditions, the constructed detection method showed a low detection (LOD) of 0.52–1.83 μg/L (S/N = 3) and wide linear range of 5.00–500.00 μg/L for triazole fungicides in the fruit and vegetable samples. The method recovery for spiked fungicides (10, 50, and 100 μg/L) in cabbage, spinach, orange juice, and apple juice ranged from 62.80% to 94.20%. The constructed detection method has a lower detection limit than previously reported methods and has a higher sensitivity for triazole pesticide residues in complex matrices.
研究领域:
分析化学
·
环境科学
·
农业科学
✓ 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）