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锆基金属有机框架捕获黄连中的生物碱类药物活性成分

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分析测试学报 2025年第1期44卷 188-194页

作者：司甜甜赵薇王慧张红玉刘小烨容蓉冯娟娟山东中医药大学药学院山东济南250355 济南大学化学化工学院山东济南250022

采用溶剂热法制备了锆基MOF-808,利用其结构优势实现了中药黄连中生物碱类药物活性成分的富集与捕获,并结合其结构特点探讨了其协同低共熔溶剂捕获生物碱类活性成分过程中的相互作用。通过优化孵育捕获等条件,对黄连粗提液中药根碱的回... 详细信息

采用溶剂热法制备了锆基MOF-808,利用其结构优势实现了中药黄连中生物碱类药物活性成分的富集与捕获,并结合其结构特点探讨了其协同低共熔溶剂捕获生物碱类活性成分过程中的相互作用。通过优化孵育捕获等条件,对黄连粗提液中药根碱的回收率达到85.78%,结合高效液相色谱技术建立了检测黄连粗提液中5种生物碱类活性成分的方法。方法的线性范围为0.1~300μg·L^(-1),检出限为0.02~0.05μg·L^(-1),相对标准偏差为0.40%~4.7%,加标回收率达到69.7%~128%。该研究实现了中药黄连中生物碱类活性成分的高效、快速富集与捕获,为MOFs材料在选择性捕获与富集中药有效成分等领域的研究提供了新思路。

关键词：金属有机框架选择性富集色谱分离生物碱活性成分黄连

Acupuncture and moxibustion for irritable bowel syndrome:An umbrella systematic review

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Journal of Integrative Medicine 2024年第1期22卷 22-31页

作者： Yue-ying Ma Zhou Hao Zi-yi Chen Yan-xi Shen hui-rong Liu Huan-gan Wu Chun-hui Bao Shanghai Clinical Research Centre for Acupuncture and Moxibustion Yueyang Hospital of Integrated Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437China Key Laboratory of Acupuncture and Immunological Effects Shanghai University of Traditional Chinese MedicineShanghai 200030China

BackgroundIrritable bowel syndrome(IBS)is a functional bowel disease characterized by abdominal pain or discomfort associated with altered bowel *** clinical studies have demonstrated the effectiveness of acupuncture and moxibustion for *** systematic reviews of acupuncture and moxibustion for IBS have been published in recent years,but their results are not entirely *** evaluate the methodological,reporting,and evidence quality of systematic reviews of acupuncture and moxibustion for *** strategySystematic reviews of acupuncture and moxibustion for IBS published before February 20,2023 were searched in eight databases:PubMed,Embase,Cochrane Library,Web of Science,China National Knowledge Infrastructure,Wanfang Data,VIP Database for Chinese Technical Periodicals,and China Biology *** keywords used for literature search were acupuncture,moxibustion,systematic review,meta-analysis,and irritable bowel *** criteriaSystematic reviews and meta-analyses of randomized controlled trials of acupuncture and moxibustion for IBS were *** extraction and analysisRelevant information was independently extracted by two *** A MeaSurement Tool to Assess systematic Reviews 2(AMSTAR 2),Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA 2020),and Grading of Recommendations Assessment,Development and Evaluation(GRADE)were used to evaluate the methodological quality,reporting quality and evidence quality,*** total of 342 studies were retrieved and 15 systematic reviews were *** results of AMSTAR 2 showed low methodological quality in 2 studies and very low methodological quality in the remaining 13 studies,with main issues being failure to register a protocol,incomplete search strategy,not providing a list of excluded studies,incomplete consideration of the risk of bias in the included studies,and a failure to assess the publication *** results of

关键词： Irritable bowel syndrome Acupuncture Moxibustion Umbrella systematic review Systematic review

Graphene oxide wrapped magnetic nanoparticle composites induced by SiO_(2) coating with excellent regenerability

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International Journal of Minerals,Metallurgy and Materials 2021年第12期28卷 2001-2007页

作者： Zhong-liang Hu Hou-quan Cui Yan-huai Ding Jing-ying Li yi-rong Zhu Zhao-hui Li College of Metallurgy and Material Engineering Hunan University of TechnologyZhuzhou 412007China College of Chemistry Xiangtan UniversityXiangtan 411105China Institute of Fundamental Mechanics and Materials Engineering Xiangtan UniversityXiangtan 411105China

Graphene oxide(GO)wrapped Fe_(3)O_(4) nanoparticles(NPs)were prepared by coating the Fe_(3)O_(4) NPs with a SiO_(2) layer,and then modifying by amino groups,which interact with the GO nanosheets to form covalent *** SiO_(2) coating layer plays a key role in integrating the magnetic nanoparticles with the GO *** effect of the amount of SiO_(2) on the morphology,structure,adsorption,and regenerability of the composites was studied in *** appropriate SiO_(2) layer can effectively induce the GO nanosheets to completely wrap the Fe_(3)O_(4) NPs,forming a core-shell Fe_(3)O_(4)@SiO_(2)@GO composite where Fe_(3)O_(4)@SiO_(2) NPs are firmly encapsulated by GO *** optimized Fe_(3)O_(4)@SiO_(2)@GO sample exhibits a high saturated adsorption capacity of 253 mg·g^(-1) Pb(Ⅱ)cations from wastewater,and the adsorption process is well fitted by Langmuir adsorption ***,the composite displays excellent regeneration,maintaining a~90%adsorption capacity for five cycles,while other samples decrease their adsorption capacity *** work provides a theoretical guidance to improve the regeneration of the GO-based adsorbents.

关键词： composites composite coating

Interfacial engineering of CdS for efficient coupling photoredox

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Chinese Chemical Letters 2023年第7期34卷 260-264页

作者： Ming-hui Sun Ming-Yu Qi Chang-Long Tan Zi-rong Tang yi-Jun Xu College of Chemistry State Key Laboratory of Photocatalysis on Energy and EnvironmentFuzhou UniversityFuzhou 350116China

Ternary composites of reduced graphene oxide(GR)-CdS-Pd have been successfully synthesized via solvothermal and photodeposition methods for photocatalytic selective conversion of benzyl alcohol(BA)coupled with hydrogen(H_(2))production, which exhibit significantly improved photoactivity and selectivity than bare CdS. Mechanistic studies unveil that the cooperative effect of the close interface contact and matched energy level alignment between electrical conducting GR nanosheets(NSs) and CdS nanoparticles(NPs) in GR-CdS-Pd composite not only benefits the separation and transfer of photogenerated carriers but also improves the photocorrosion resistance of CdS. The photodeposited Pd NPs further promote the photogenerated charge separation and accelerate the formation of intermediate products(α-hydroxybenzyl radicals), thereby contributing to enhanced conversion of BA. This work would facilitate the rational design of GR as cocatalyst to construct an efficient and stable CdS-based composite photocatalyst for cooperative coupling of fine chemical synthesis and H_(2) evolution.

关键词： CdS Reduced graphene oxide Pd Coupling photoredox reaction Hydrogen Alcohol oxidation

Topological Aspects of Solitons in Ferromagnets

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Communications in Theoretical Physics 2008年第9期50卷 777-780页

作者： REN Ji-rong WANG Ji-Biao LI Ran XU Dong-hui DUAN yi-Shi Institute of Theoretical Physics Lanzhou University Lanzhou 730000 China

Two kinds of topological soliton （skyrmion and magnetic vortex ring） in ferromagnets are studied. They have the common topological origin, a tensor Hαβ = n→·（δαn→×βδn→）, which describes the non-trivial distribution of local orientation of magnetization n→ at large distances in space. The topological stability of skyrmion is protected by the winding number. Knot-like topological defect as magnetic vortex rings is also studied. On the assumption that magnetic vortex rings are geometric lines, we present their δ-function distribution in ferromagnetic materials. Furthermore, it is briefly shown that Hopf invariant is a proper topological invariant to describe the topology of magnetic vortex rings.

关键词： ferromagnets skyrmions vortex rings

非洲猪瘟病毒p34蛋白重组纳米颗粒的制备及免疫原性评价

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农业生物技术学报 2025年第1期33卷 228-236页

作者：张荣茹毅蒋成辉张越赵冬梅郝荣增李亚军郑海学刘学荣杨进才安兰芳魏彦明甘肃农业大学动物医学院中国农业科学院兰州兽医研究所/动物疫病防控全国重点实验室中农威特生物科技股份有限公司

铁蛋白纳米颗粒具有可展示多抗原的表面，能更好的促进细胞摄取和抗原呈递，进而增强免疫效力而被广泛应用于疫苗研究。本研究旨在利用铁蛋白制备携带非洲猪瘟病毒(African swine fever virus,ASFV) p34蛋白的纳米颗粒抗原，并评价其免... 详细信息

铁蛋白纳米颗粒具有可展示多抗原的表面，能更好的促进细胞摄取和抗原呈递，进而增强免疫效力而被广泛应用于疫苗研究。本研究旨在利用铁蛋白制备携带非洲猪瘟病毒(African swine fever virus,ASFV) p34蛋白的纳米颗粒抗原，并评价其免疫原性，为非洲猪瘟纳米疫苗研究提供参考。首先，将编码p34蛋白和SpyTag(ST)标签的基因序列串联后插入pET-28a(+)载体得到pET-p34-ST重组质粒，将编码Spycatcher(SC)与铁蛋白(ferritin, F)的基因序列串联后插入pET-28a(+)载体得到pET-SC-F重组质粒，并分别在大肠杆菌(Escherichia coli)中诱导表达。然后通过亲和层析法纯化2种重组蛋白p34-ST和SC-F后，进行体外偶联得到重组纳米颗粒F-p34。利用SDS-PAGE、Western blot、动态光散射(dynamic light scattering, DLS)、投射电子显微镜(transmission electron microscopy, TEM)等方法对制备的F-p34进行鉴定和形态表征，最后通过免疫BALB/c小鼠(Mus musculus)进行体内免疫原性评价。结果显示，本研究成功设计并构建了pET-28a-p34-ST和pET-28a-SC-F原核表达载体，经过体外表达、纯化和偶联，成功制备出偶联非洲猪瘟病毒p34蛋白的铁蛋白纳米颗粒F-p34，其与ASFV阳性血清能够发生特异性反应，DLS和TEM体外表征发现，F-p34粒径大约为21 nm，且具有均一的纳米颗粒结构；F-p34免疫小鼠后7 d即可诱导机体产生特异性免疫应答，在42 d时抗体滴度达到最高且显著高于单体抗原p34免疫组(P<0.05)。Fp34免疫组脾淋巴细胞的增殖水平和血清中细胞因子白细胞介素4(interleukin 4, IL-4)、IL-10、IL-2和干扰素γ(interferon, IFN-γ)的分泌水平显著高于p34免疫组(P<0.05)。综上，本研究成功制备了具有良好免疫原性的携带非洲猪瘟病毒p34蛋白的纳米颗粒抗原，拓宽了非洲猪瘟亚单位疫苗的研究思路。

关键词：非洲猪瘟病毒(ASFV) p34蛋白铁蛋白纳米颗粒偶联免疫原性

Recent advancements in hydrometallurgical recycling technologies of spent lithium-ion battery cathode materials

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Rare Metals 2024年第3期43卷 879-899页

作者： Juan Wu Li Xiao Li Shen Jian-Jun Ran hui Zhong yi-rong Zhu Han Chen College of Materials and Advanced Manufacturing Hunan University of TechnologyZhuzhou412007China School of Resources Processing and Bioengineering Central South UniversityChangsha410083China Guangdong JiaNa Energy Technology Company Qingyuan513000China

The rapidly increasing production of lithium-ion batteries(LIBs)and their limited service time increases the number of spent LIBs,eventually causing serious environmental issues and resource *** the perspectives of clean production and the development of the LIB industry,the effective recovery and recycling of spent LIBs require urgent *** study provides an overview of the current hydrometallurgical processes employed in the recycling of spent cathode materials,focusing on the leaching of valuable metals and their *** particular,this research reviews the various leaching systems(inorganic acid,organic acid,and ammonia)and the separation of valuable metals,and then,recommendations for subsequent study are offered in an attempt to contribute to the development of highly efficient methods for recycling spent cathode *** addition,a range of existing technologies,such as solvent extraction,chemical precipitation,electrochemical deposition,and regeneration,for the postprocessing of leaching solutions are ***,the promising technologies,existing challenges and suggestions with respect to the development of effective and environmentally friendly recycling methods for handling spent cathode materials are identified.

关键词： Spent lithium-ion batteries(LIBs) Cathode material Hydrometallurgy Leaching Recycling

Fluorescence Quenching of Anthracene by N,N-Diethylaniline and Phenothiazine in Triton X-100/n-C_(10)H_(21) OH/H_2O Microemulsion

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Chemical Research in Chinese Universities 2003年第4期19卷 484-488页

作者： GUO Xia XU hui GUO rong Department of Chemistry Yangzhou UniversityYangzhou 225002P.R.China

The photo-induced electron transfer reactions of anthracene with N,N -diethylaniline(DEA) and phenothiazine(PTZ) occur in the membrane phase of a Triton X-100/ n -C 10 H 21 OH(1-decanol)/H 2O microemulsion. DEA and PTZ exist in the membrane phase of the microemulsion. Anthracene exists in the oil continuous phase of the W/O microemulsion and in the oil core and membrane phase of the O/W microemulsion.

关键词： Electron transfer process Fluorescence quenching Anthracene,Phenothiazine N,N -dieth\|ylaniline Microemulsion

Facile Adjusting for Cells of Lightweight Isocyanate-based Polyimide Foam and Operable Combination between Different Distinctive Acoustic Foams for Higher Performance

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Chinese Journal of Polymer Science 2021年第2期39卷 237-248,I0008页

作者： Xiao-He Ren Gao-hui Sun Lei-Chao Wang rong-rong Chen Jun Wang Shi-hui Han Key Laboratory of Superlight Material and Surface Technology of Ministry of Education Harbin Engineering UniversityHarbin 150001China College of Material Science and Chemical Engineering Harbin Engineering UniversityHarbin 150001China

New ambient sound absorption material,lightweight isocyanate-based polyimide foam(IBPIF),was fabricated by operable combination between different distinctive acoustic *** structure of IBPIF was facilely and obviously adjusted by increased slurry temperature corresponding to change in distinctive acoustic ***,density of all IBPIF kept at only 12-17 kg/*** increasing slurry temperature from 0℃to 40℃,cell size and window opening rate gradually increased from 553μm to 791μm and from 6.85%to 58.46%,*** this study,IBPIF generated by slurries at 0℃(marked as PIF-2)and 40℃(marked as PIF-6)showed best and distinctive acoustic behavior in 315-800 Hz and 800-6300 Hz regions,*** acoustic behavior study of combined IBPIF prepared by stitching combination between two distinctive acoustic IBPIFs,results showed that only when PIF-6 sheet used as sound receiving surface even though with thickness of only 10 mm could the combined IBPIF possess the best acoustic level in 800-6300 Hz region as ***,acoustic behavior in 315-800 Hz region could be significantly enhanced by increasing thickness of PIF-2 and could reach or close to the best acoustic level.

关键词： Isocyanate-based polyimide foam Slurry temperature Cellular structure Distinctive acoustic Combination style