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学者姓名：钟燕辉
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Abstract ：
Frequent oil spills cause substantial economic losses and pose a significant threat to human life. Urgent measures must be taken to develop a highly effective approach to mitigating oil spills and minimizing their potential consequences. Herein, we synthesized MS@COFs-F, fluorinated covalent organic framework-decorated superhydrophobic sponges, to clean up crude oil spills efficiently. The synthesis method involved a simple and effective room-temperature approach, utilizing 2,4,6-tris(4-aminophenyl)-1,3,5-triazine (TAPT) as the amine monomer and binding it with three aldehyde monomers of varying fluoride content. The MS@COFs-F with the highest fluorine content, known as MS@COFs-F4, exhibited low surface energy, superhydrophobicity (water contact angle of 155.7 degrees), a large specific surface area of 180 m(2)/g, and exceptional chemical, mechanical, and thermal stability. MS@COFs-F4 demonstrated remarkable effectiveness in adsorbing crude oils and organic solvents of diverse viscosities, exhibiting an adsorption capacity between 68.5 and 125.9 g/g, achieving an oil-water separation efficiency exceeding 97.0 %. Additionally, MS@COFs-F4 showcased self-cleaning and flame-retardant properties, further enhancing its suitability for real-world applications. MS@COFs-F4 holds the potential to offer a novel, safe, and effective approach in addressing oil spill incidents.
Keyword ：
Fluorinated covalent organic framework Fluorinated covalent organic framework Oil spill cleanup Oil spill cleanup Room-temperature synthesis Room-temperature synthesis Superhydrophobicity Superhydrophobicity Superhydrophobic sponges Superhydrophobic sponges
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| GB/T 7714 | Dong, Jinghan , Zheng, Wenjun , Yang, Yixin et al. Room-temperature synthesis of fluorinated covalent organic framework decorated superhydrophobic sponges for highly efficient crude oil spill cleanup [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 344 . |
| MLA | Dong, Jinghan et al. "Room-temperature synthesis of fluorinated covalent organic framework decorated superhydrophobic sponges for highly efficient crude oil spill cleanup" . | SEPARATION AND PURIFICATION TECHNOLOGY 344 (2024) . |
| APA | Dong, Jinghan , Zheng, Wenjun , Yang, Yixin , Dong, Shaofeng , Li, Songtao , Zhong, Yanhui et al. Room-temperature synthesis of fluorinated covalent organic framework decorated superhydrophobic sponges for highly efficient crude oil spill cleanup . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 344 . |
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Solid-phase microextraction (SPME) coupled with electrospray ionization mass spectrometry (ESI-MS) was developed for rapid and sensitive determination of endogenous androgens. The SPME probe is coated with covalent organic frameworks (COFs) synthesized by reacting 1,3,5-tri(4-aminophenyl)benzene (TPB) with 2,5-dioctyloxybenzaldehyde (C8PDA). This COFs-SPME probe offers several advantages, including enhanced extraction efficiency and stability. The analytical method exhibited wide linearity (0.1-100.0 mu g L-1), low limits of detection (0.03-0.07 mu g L-1), high enrichment factors (37-154), and satisfactory relative standard deviations (RSDs) for both within one probe (4.0-14.8%) and between different probes (3.4-12.7%). These remarkable performance characteristics highlight the reliability and precision of the COFs-SPME-ESI-MS method. The developed method was successfully applied to detect five kinds of endogenous androgens in female serum samples, indicating that the developed analytical method has great potential for application in preliminary clinical diagnosis.
Keyword ：
Androgens Androgens Covalent organic frameworks Covalent organic frameworks Electrospray ionization mass spectrometry Electrospray ionization mass spectrometry Solid-phase microextraction Solid-phase microextraction
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| GB/T 7714 | Li, Heming , Tu, Yuxin , Xie, Wen et al. In situ fabrication of covalent organic frameworks on solid-phase microextraction probes coupled with electrospray ionization mass spectrometry for enrichment and determination of androgens in biosamples [J]. | MICROCHIMICA ACTA , 2024 , 191 (5) . |
| MLA | Li, Heming et al. "In situ fabrication of covalent organic frameworks on solid-phase microextraction probes coupled with electrospray ionization mass spectrometry for enrichment and determination of androgens in biosamples" . | MICROCHIMICA ACTA 191 . 5 (2024) . |
| APA | Li, Heming , Tu, Yuxin , Xie, Wen , Shi, Xinye , Zhang, Qiuting , Lin, Juan et al. In situ fabrication of covalent organic frameworks on solid-phase microextraction probes coupled with electrospray ionization mass spectrometry for enrichment and determination of androgens in biosamples . | MICROCHIMICA ACTA , 2024 , 191 (5) . |
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在教育部不断推进新课程标准的背景下,本文介绍了一项面向本科生仪器分析课程的综合性教学实验,旨在通过实践提高学生在材料制备和仪器使用方面的技能.该实验通过"一锅法"制备了一种基于共价有机框架的核壳结构固定相材料(SiO2@COFTTA-DHTA),并对其进行了详细的理化表征.随后,采用高效液相色谱技术对该材料的色谱性能进行了评估.整个实验流程包括了材料合成、表征、色谱保留行为研究和色谱分离性能测试.该实验不仅加深了学生对于功能材料性质及其应用的理解,而且提高了他们的实验设计和批判性思维能力.通过理论科学与实验教学的结合,该实验不仅能够培养学生的科研兴趣,还可以锻炼实验操作能力、创新思维和实践能力,同时增强学生的社会责任感和历史使命感,实现实验教学的全方位育人目标.
Keyword ：
共价有机框架 共价有机框架 核壳结构 核壳结构 综合性实验 综合性实验 色谱固定相 色谱固定相
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| GB/T 7714 | 刘锦 , 田文锠 , 吴帆 et al. 本科生综合实验:基于共价有机框架的核壳型固定相的制备及色谱性能评价 [J]. | 色谱 , 2024 , 42 (10) : 1006-1012 . |
| MLA | 刘锦 et al. "本科生综合实验:基于共价有机框架的核壳型固定相的制备及色谱性能评价" . | 色谱 42 . 10 (2024) : 1006-1012 . |
| APA | 刘锦 , 田文锠 , 吴帆 , 张秋婷 , 钟燕辉 , 林子俺 . 本科生综合实验:基于共价有机框架的核壳型固定相的制备及色谱性能评价 . | 色谱 , 2024 , 42 (10) , 1006-1012 . |
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Significant impairment of pulmonary function has been demonstrated through long-term exposure to neonicotinoid insecticides, such as imidacloprid (IMI). However, the underlying mechanisms of lung injury induced by IMI remain unclear. In this study, a mouse model of IMI-induced pulmonary injury was established, and the toxicity and lung damage were assessed through mouse body weight, organ index, hematological parameters, and histopathological analysis of lung tissues. Furthermore, metabolomics and transcriptomics techniques were employed to explore the mechanistic aspects. Results from the toxicity assessments indicated that mouse body weight was significantly reduced by IMI, organ index was disturbed, and hematological parameters were disrupted, resulting in pulmonary injury. The mechanistic experimental results indicate that the differences in metabolites and gene expression in mouse lungs could be altered by IMI. Validation of the results through combined analysis of metabolomics and transcriptomics revealed that the mechanism by which IMI induces lung injury in mice might be associated with the activation of the TLR4 receptor, thereby activating the PI3K/AKT/ NF- kappa B signaling pathway to induce inflammation in mouse lungs. This study provided valuable insights into the mechanisms underlying IMI-induced pulmonary damage, potentially contributing to the development of safer pest control strategies. The knowledge gained served as a robust scientific foundation for the prevention and treatment of IMI-related pulmonary injuries.
Keyword ：
Imidacloprid Imidacloprid Lung injury Lung injury Metabolomics Metabolomics Multi-omics integrated analysis Multi-omics integrated analysis Transcriptomics Transcriptomics
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| GB/T 7714 | Xie, Wen , Chen, Canrong , Li, Heming et al. Imidacloprid-induced lung injury in mice: Activation of the PI3K/AKT/ NF- κB signaling pathway via TLR4 receptor engagement [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 931 . |
| MLA | Xie, Wen et al. "Imidacloprid-induced lung injury in mice: Activation of the PI3K/AKT/ NF- κB signaling pathway via TLR4 receptor engagement" . | SCIENCE OF THE TOTAL ENVIRONMENT 931 (2024) . |
| APA | Xie, Wen , Chen, Canrong , Li, Heming , Tu, Yuxin , Zhong, Yanhui , Lin, Zian et al. Imidacloprid-induced lung injury in mice: Activation of the PI3K/AKT/ NF- κB signaling pathway via TLR4 receptor engagement . | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 931 . |
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Sample preparation is crucial in analytical chemistry, impacting result accuracy, sensitivity, and reliability. Solid-phase separation media, especially adsorbents, are vital for preparing of liquid and gas samples, commonly analyzed by most analytical instruments. With the advancements in materials science, covalent organic frameworks (COFs) constructed through strong covalent bonds, have been increasingly employed in sample preparation in recent years. COFs have outstanding selectivity and/or excellent adsorption capacity for a single target or can selectively adsorb multiple targets from complex matrix, due to their large specific surface area, adjustable pore size, easy modification, and stable chemical properties. In this review, we summarize the classification of COFs, such as pristine COFs, COF composite particles, and COFs-based substrates. We aim to provide a comprehensive understanding of the different classifications of COFs in sample preparation within the last three years. The challenges and development trends of COFs in sample preparation are also presented. © 2024
Keyword ：
Adsorbates Adsorbates Chemical modification Chemical modification Specimen preparation Specimen preparation
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| GB/T 7714 | Zhong, Yanhui , Li, Heming , Lin, Zian et al. Advances in covalent organic frameworks for sample preparation [J]. | Journal of Chromatography A , 2024 , 1736 . |
| MLA | Zhong, Yanhui et al. "Advances in covalent organic frameworks for sample preparation" . | Journal of Chromatography A 1736 (2024) . |
| APA | Zhong, Yanhui , Li, Heming , Lin, Zian , Li, Gongke . Advances in covalent organic frameworks for sample preparation . | Journal of Chromatography A , 2024 , 1736 . |
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Triclosan (TCS), triclocarban (TCC), and chlorophenols (CPs) are broad-spectrum antibacterials widely used in dermatological and oral hygiene products, which could induce severe liver and intestine injuries. Hence, it is essential to establish a rapid and sensitive method to monitor TCS, TCC, and CPs in various organisms. In this work, fluorine-functionalized covalent organic framework (COF–F) was prepared by using 4,4′,4''-(1,3,5-triazine-2,4,6-triyl)tri-aniline and 2,3,5,6-tetrafluoroterephthalaldehyde as two building units and employed as a solid phase microextraction (SPME) probe for the extraction of TCS, TCC and CPs. The COF–F possessed excellent hydrophobicity, a large specific surface area (1354.3 m2 g−1) and high uniform porosity (3.2 nm), which facilitated high selectivity and adsorption properties towards TCS, TCC, and CPs. Therefore, the as-prepared COF–F-SPME in combination with electrospray ionization mass spectrometry has been developed to provide fast and ultrasensitive detection of TCS, TCC, and CPs in biological samples. The established method demonstrated satisfactory linear ranges (0.01–100.00 μg L−1) and low limits of detection (0.003–0.040 μg L−1) for TCS, TCC and CPs. The developed method could be successfully applied to detect TCS, TCC and CPs in the liver and kidney tissues of mice, demonstrating the potential for the detection of chlorinated aromatic pollutants in the biological samples. © 2024 Elsevier B.V.
Keyword ：
Aniline Aniline Electrospray ionization Electrospray ionization Extraction Extraction Fluorine Fluorine Mammals Mammals Mass spectrometry Mass spectrometry Phenols Phenols Probes Probes
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| GB/T 7714 | Tu, Yuxin , Li, Heming , Xue, Yuandi et al. Fluorine-functionalized covalent organic framework coated solid-phase microextraction probe coupled with electrospray ionization mass spectrometry for monitoring triclosan, triclocarban, and chlorophenols in mice [J]. | Talanta , 2024 , 278 . |
| MLA | Tu, Yuxin et al. "Fluorine-functionalized covalent organic framework coated solid-phase microextraction probe coupled with electrospray ionization mass spectrometry for monitoring triclosan, triclocarban, and chlorophenols in mice" . | Talanta 278 (2024) . |
| APA | Tu, Yuxin , Li, Heming , Xue, Yuandi , Xie, Wen , Chen, Canrong , Zhong, Yanhui et al. Fluorine-functionalized covalent organic framework coated solid-phase microextraction probe coupled with electrospray ionization mass spectrometry for monitoring triclosan, triclocarban, and chlorophenols in mice . | Talanta , 2024 , 278 . |
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Imitating catalytic sites of natural enzymes is a promising approach to accurately improve the catalytic performances of nanozymes. Herein, inspired by the structure of natural horseradish peroxidase (HRP), threecomponent condensation strategy is unitized to design histidine (His) functionalized iron porphyrin covalent organic frameworks (Fe-COF-H3) nanozyme with peroxidase-like (POD-like) activity. The introduced His could form favorable microenvironment around the iron porphyrin structure, enhancing the catalytic capacity of COF nanozyme. Taking advantage of its excellent POD-like activity, Fe-COF-H3 was utilized as a carrier to immobilize urate oxidase (UOx) for the construction of enzyme-nanozyme cascade system (UOx@Fe-COF-H3). The UOx@FeCOF-H3 was successfully applied for the colorimetric detection of uric acid (UA) in biological samples. This work not only offers a new insight to develop high-efficiency COF nanozymes, but also expands the application of COF nanozyme for the construction of enzyme-nanozyme cascade system.
Keyword ：
Biomimetic strategy Biomimetic strategy Biosensor Biosensor Covalent organic framework Covalent organic framework Enzyme-nanozyme cascade Enzyme-nanozyme cascade Nanozyme Nanozyme
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| GB/T 7714 | Zhong, Chao , Hu, Cong , Ouyang, Dan et al. Bioinspired construction of histidine-doped porphyrin covalent organic framework nanozyme with enhanced peroxidase-like activity for sensitive uric acid detection [J]. | CHEMICAL ENGINEERING JOURNAL , 2023 , 477 . |
| MLA | Zhong, Chao et al. "Bioinspired construction of histidine-doped porphyrin covalent organic framework nanozyme with enhanced peroxidase-like activity for sensitive uric acid detection" . | CHEMICAL ENGINEERING JOURNAL 477 (2023) . |
| APA | Zhong, Chao , Hu, Cong , Ouyang, Dan , Dan, Akang , Zhong, Yanhui , Cai, Zongwei et al. Bioinspired construction of histidine-doped porphyrin covalent organic framework nanozyme with enhanced peroxidase-like activity for sensitive uric acid detection . | CHEMICAL ENGINEERING JOURNAL , 2023 , 477 . |
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Here, an imine-linked-based spherical covalent organic framework (COF) was prepared at room temperature. The as-synthesized spherical COF served as an adsorbent in dispersive solid-phase extraction (dSPE), by its virtue of great surface area (1542.68 m(2)/g), regular distribution of pore size (2.95 nm), and excellent stability. Therefore, a simple and high-efficiency dispersive solid phase extraction method based on a spherical COF coupled with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was established to determine aryl organophosphate esters in biological samples. This approach displayed favorable linearity in the range of 10.0-1000.0 ng/L (r > 0.9989), a high signal enhancement factor (58.8-181.8 folds) with low limits of detection (0.3-3.3 ng/L). Moreover, it could effectively eliminate complex matrix interference to accurately extract seven aryl organophosphate esters from mouse serum and tissue samples with spiked recoveries of 82.0%-117.4%. The as-synthesized spherical COF has been successfully applied in sample preparation. The dSPE-HPLC-MS/MS method based on a spherical COF has potential application to study the pollutants' metabolism in vivo.
Keyword ：
aryl organophosphate esters aryl organophosphate esters biological samples biological samples covalent organic frameworks covalent organic frameworks dispersive solid phase extraction dispersive solid phase extraction quantification quantification
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| GB/T 7714 | Wu, Yijing , Zheng, Wenjun , Chen, Canrong et al. Facile synthesis of spherical covalent organic frameworks for enrichment and quantification of aryl organophosphate esters in mouse serum and tissues [J]. | JOURNAL OF SEPARATION SCIENCE , 2023 , 46 (22) . |
| MLA | Wu, Yijing et al. "Facile synthesis of spherical covalent organic frameworks for enrichment and quantification of aryl organophosphate esters in mouse serum and tissues" . | JOURNAL OF SEPARATION SCIENCE 46 . 22 (2023) . |
| APA | Wu, Yijing , Zheng, Wenjun , Chen, Canrong , Yang, Linyan , Tong, Ping , Zhong, Yanhui et al. Facile synthesis of spherical covalent organic frameworks for enrichment and quantification of aryl organophosphate esters in mouse serum and tissues . | JOURNAL OF SEPARATION SCIENCE , 2023 , 46 (22) . |
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