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ZIF-8 modified by isocyanate as a photocatalytic antibacterial agent

Rare Metals 2024年第6期43卷 2708-2718页

作者： Yi-Ning Zhang Zhen Pei Zi-Hao Wang Chong-En Wang fen-fen liang Li-Qiao Wei College of Architecture Taiyuan University of TechnologyTaiyuan 030024China Key Laboratory of Interface Science and Engineering in Advanced Materials of Taiyuan University of Technology Ministry of EducationTaiyuan 030024China Department of Materials Science and Engineering Shanxi Institute of TechnologyYangquan 045000China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030000China

Zeolite imidazole skeleton(ZIF-8)is a promising option for self-cleaning of building exterior walls due to its large specific surface area,high antibacterial activity and low ***,it suffers from low antibacterial efficiency and yield under visible light *** address the issues,we developed the photocatalytic materials T-ZIF-8-TDI(thermally treated-ZIF-8-toluene 2,4-diisocyanate)by modifying ZIF-8 with thermal oxygen sensitization and chemical *** results show that the yield of T-ZIF-8-TDI photocatalytic antibacterial agent is increased to 11.5 times of that of T-ZIF-8,while maintaining the crystal structure of T-ZIF-8 and thermal stability up to 60℃.Furthermore,T-ZIF-8-TDI exhibits extended optical response range to the nearinfrared region,significantly narrowed band gap,improved photogenerated elec tron-hole separation efficiency,reduced recombination rate,and excellent photocatalytic *** the concentration of antibacterial agent is 600 mg·L^(-1),the antibacterial rate of Escherichia coli(***)reaches 99.99%irradiated by visible light for30 min,and when the concentration of antibacterial agent is 200 mg·L^(-1),the antibacterial rate of Staphylococcus aureus(***)reaches 99.99%irradiated by visible light for 25 *** also analyzed the reasons in detail from the aspects of bacterial species and antibacterial mechanism,and proposed the antibacterial mechanism of·O_(2)^(-)and h^(+)as the main active *** findings suggest that T-ZIF-8-TDI photocatalytic antibacterial agent has potential for use in self-cleaning of building exterior walls.

关键词： ZIF-8 Hot oxygen sensitization Modified by isocyanate Antimicrobial performance Photocatalytic antibacterial mechanism

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Carboxylic bacterial cellulose fiber-based hydrogel electrolyte with imidazole-type ionic liquid for dendrite-free zinc metal batteries

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Materials Reports(Energy) 2024年第2期4卷 45-53页

作者： Tianyun Zhang Xiaohong Shi Yu Li Sambasivam Sangaraju Fujuan Wang liang Yang fen Ran School of Mechanical and Electronical Engineering Lanzhou University of TechnologyLanzhou730050PR China State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals School of Materials Science and EngineeringLanzhou University of TechnologyLanzhou730500PR China National Water and Energy Center United Arab Emirates UniversityAl Ain15551United Arab Emirates

Aqueous zinc metal batteries are regarded as the most promising energy storage system due to their advantages of high safety,low cost,and high theoretical ***,the growth of dendrites and the occurrence of side reactions hinder the development of zinc metal *** previous attempts to design advanced hydrogel electrolytes,achieving high mechanical performance and ionic conductivity of hydrogel electrolytes has remained *** this work,a hydrogel electrolyte with an ionic crosslinked network is prepared by carboxylic bacterial cellulose fiber and imidazole-type ionic liquid,following by a covalent network of *** hydrogel electrolyte possesses a superior ionic conductivity of 43.76 mS cm^(−1),leading to a Zn^(2+)migration number of 0.45,and high mechanical performance with an elastic modulus of 3.48 GPa and an elongation at breaking of 38.36%.More importantly,under the anion-coordination effect of the carboxyl group in bacterial cellulose and[BF4]−in imidazole-type ionic liquid,the solvation sheath of hydrated Zn^(2+)ions and the nucleation overpotential of Zn plating are *** results of cycled testing show that the growth of zinc dendrites is effectively inhibited and the generation of irreversible by-products is *** the carboxylic bacterial cellulose-based hydrogel electrolyte,the Zn||Zn symmetric batteries offer good cyclability as well as Zn||Ti batteries.

关键词： Bacterial cellulose fiber Ionic liquids Carboxylic group Gel electrolyte Zn metal batteries

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Pulsations of Three Rapidly Oscillating Ap Stars TIC 96315731, TIC72392575, and TIC 318007796

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Research in Astronomy and Astrophysics 2024年第8期24卷 159-170页

作者： Hai-Jian Zhong Dong-Xiang Shen Chun-Hua Zhu He-Lei Liu Su-fen Guo Guo-liang Lü School of Physical Science and Technology Xinjiang University Xinjiang Astronomical Observatory National Astronomical ObservatoriesChinese Academy of Sciences

We analyze the frequencies of three known roAp stars,TIC 96315731,TIC 72392575,and TIC 318007796,using the light curves from the Transiting Exoplanet Survey *** TIC 96315731,the rotational and pulsational frequencies are 0.1498360 day-1and 165.2609 day-1,*** the case of TIC 72392575,the rotational frequency is 0.25551 *** detect a quintuplet of pulsation frequencies with a center frequency of135.9233 day-1,along with two signals within the second pair of rotational sidelobes of the quintuplet separated by the rotation *** two signals may correspond to the frequencies of a dipole *** TIC318007796,the rotational and pulsational frequencies are 0.2475021 day-1,192.73995 day-1,and196.33065 day-1,*** on the oblique pulsator model,we calculate the rotation inclination （i）and magnetic obliquity angle （b） for the stars,which provide the geometry of the pulsation *** the phases of the frequency quintuplets,the pulsation amplitude and phase modulation curves,and the results of spherical harmonic decomposition,we conclude that the pulsation modes of frequency quintuplets in TIC96315731,TIC 72392575,and TIC 318007796 correspond to distorted dipole mode,distorted quadrupole mode,and distorted dipole mode,respectively.

关键词： asteroseismology stars: chemically peculiar stars: oscillations (including pulsations) techniques: photometric

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Enhanced hydrogen evolution performance by 3D ordered macroporous Ru-CoP@NC electrocatalysts

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Rare Metals 2024年第3期43卷 1095-1107页

作者： Chen-Chen Zhang Sheng Wei Li-Xian Sun Yi-Fang Ouyang fen Xu Hai-liang Chu Hong-GePan Li-Xin Chen Xue-Zhang Xiao School of Material Science and Engineering Guilin University of Electronic TechnologyGuilin541004China School of Chemistry and Chemical Engineering Guangxi UniversityNanning530004China Shenzhen Institute of Advanced Technology Chinese Academy of SciencesShenzhen518055GuangdongChina Institute of Science and Technology for New Energy Xi'an Technological UniversityXi'an710021China School of Materials Science and Engineering Zhejiang UniversityHangzhou310058China

Electrocatalytic water splitting coupled with sustainable energies is identified as an environmentally friendly and renewable strategy to generate high-quality hydrogen for the fuel ***,the main challenge is to develop high performance,low cost and chemically stable electrocatalysts to decline the energy barriers and enhance the sluggish kinetics of hydrogen evolution reaction(HER).Herein,a three-dimensional hierarchically ordered macroporous Ru-CoP@NC electrocatalyst(3DOM Ru-CoP@NC)derived from ordered macro-microporous metal-organic frameworks has been prepared using the precursor@template and double-solvent *** prepared 3DOM Ru-CoP@NC catalyst exhibits an overpotential of 15 mV(j=10 mA·cm^(-2))and a reaction Tafel slope of 38 mV·dec^(-1)in alkaline electrolyte,which are superior to commercial Pt@C ***,the overpotential and reaction Tafel slope of this catalyst in acidic media are 45 mV and 50 mV·dec^(-1),*** outstanding HER activities of 3DOM Ru-CoP@NC catalysts are ascribed to the 3D highly interconnectedreticular nanospaces that can increase effective reaction active *** N dope d carbon framework improves the electronic properties and ***,the strong interaction of Ru and CoP nanoparticles also boosts the HER *** results indicate that 3DOM Ru-CoP@NC catalysts with high catalytic activities have a broad application prospect in the future.

关键词： Hydrogen evolution reaction Template method 3D ordered macroporous Ru-CoP@NC

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Metallaphotoredox-Catalyzed Three-Component Couplings for Practical Synthesis of Ureas and Carbamates

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Chinese Journal of Chemistry 2024年第3期42卷 264-270页

作者： Ernest Koranteng Zhen-Cao Shu Yi-Yin Liu Qian Yang Bin Shi Qiang-Xian Wu fen Tan liang-Qiu Lu Wen-Jing Xiao Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction Ministry of EducationCollege of ChemistryCentral China Normal University152 Luoyu RoadWuhanHubei430079 China Wuhan Youji Industries Co. LtdNo.1 2nd Chemical Rd.WuhanHubei430082 China Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients School of Chemistry and Life SciencesHubei University of EducationWuhanHubei430205 China State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhouGansu730000 China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan453007 China Wuhan Institute of Photochemistry and Technology WuhanHubei430082 China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai200032 China

Ureas are widely used in drugs,materials and catalysts because of their diamide structure,which can form strong hydrogen ***,it is of great scientific significance to develop efficient and green methods for the synthesis of urea compounds,especially unsymmetrical ***,we have disclosed novel and highly efficient three-component coupling reactions of organic halides,sodium cyanate and amines enabled by nickel/photoredox dual catalysis for the preparation of unsymmetrical *** reaction features simple and safe operations,broad substrate scopes,and product *** allows the facile synthesis of N-aryl/vinyl ureas from readily available,user-friendly feedstocks under mild conditions(27 examples,36%—98%yields).In addition,this method is further derived to alcohols as nucleophiles to synthesize a series of carbamates(15 examples,40%—95%yields).The mechanism experiment shows that the isocyanate produced by the coupling of halide and sodium cyanate may be the key intermediate in this reaction.

关键词： Cross-coupling Nickel Photoredox catalysis Three-component reaction Ureas Carbamates

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Standard-definition White-light,High-definition White-light versus Narrow-band Imaging Endoscopy for Detecting Colorectal Adenomas:A Multicenter Randomized Controlled Trial

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Current Medical Science 2024年第3期44卷 554-560页

作者： Chang-wei DUAN Hui-hong ZHAI Hui XIE Xian-zong MA Dong-liang YU Lang YANG Xin WANG Yu-fen TANG Jie ZHANG Hui SU Jian-qiu SHENG Jun-feng XU Peng JIN Chinese PLA General Hospital and Medical School Beijing100853China Department of Gastroenterology Xuanwu HospitalCapital Medical UniversityBeijing100053China Department of Gastroenterology The Seventh Medical Center of Chinese PLA General HospitalBeijing100700China Senior Department of Gastroenterology The First Medical Center of Chinese PLA General HospitalBeijing100853China

Objective This study aimed to compare the performance of standard-definition white-light endoscopy(SD-WL),high-definition white-light endoscopy(HD-WL),and high-definition narrow-band imaging(HD-NBI)in detecting colorectal lesions in the Chinese *** This was a multicenter,single-blind,randomized,controlled trial with a non-inferiority *** undergoing endoscopy for physical examination,screening,and surveillance were enrolled from July 2017 to December *** primary outcome measure was the adenoma detection rate(ADR),defined as the proportion of patients with at least one adenoma *** associated factors for detecting adenomas were assessed using univariate and multivariate logistic *** Out of 653 eligible patients enrolled,data from 596 patients were *** ADRs were 34.5%in the SD-WL group,33.5%in the HD-WL group,and 37.5%in the HD-NBI group(P=0.72).The advanced neoplasm detection rates(ANDRs)in the three arms were 17.1%,15.5%,and 10.4%(P=0.17).No significant differences were found between the SD group and HD group regarding ADR or ANDR(ADR:34.5%vs.35.6%,P=0.79;ANDR:17.1%vs.13.0%,P=0.16,respectively).Similar results were observed between the HD-WL group and HD-NBI group(ADR:33.5%vs.37.7%,P=0.45;ANDR:15.5%vs.10.4%,P=0.18,respectively).In the univariate and multivariate logistic regression analyses,neither HD-WL nor HD-NBI led to a significant difference in overall adenoma detection compared to SD-WL(HD-WL:OR 0.91,P=0.69;HD-NBI:OR 1.15,P=0.80).Conclusion HD-NBI and HD-WL are comparable to SD-WL for overall adenoma detection among Chinese *** can be concluded that HD-NBI or HD-WL is not superior to SD-WL,but more effective instruction may be needed to guide the selection of different endoscopic methods in the *** study’s conclusions may aid in the efficient allocation and utilization of limited colonoscopy resources,especially advanced imaging technologies.

关键词： standard-definition white-light endoscopy high-definition white-light endoscopy narrow-band imaging colonoscopy colorectal cancer screening adenoma detection rate

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土壤真菌群落结构对辣椒长期连作的响应特征

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环境科学 2024年第1期45卷 543-554页

作者：陈芬余高王谢丰李廷亮孙约兵铜仁学院贵州省梵净山地区生物多样性保护与利用重点实验室铜仁554300 山西农业大学资源环境学院晋中030801 农业农村部产地环境污染防控重点实验室天津市农业环境与农产品安全重点实验室天津300191

通过研究辣椒长期连作对土壤真菌群落结构特征的影响,揭示连作障碍机制,以期为辣椒产地生态安全和产业可持续发展提供理论依据.以铜仁市某蔬菜大棚种植基地辣椒连作土壤为研究对象,采用Illumina MiSeq高通量测序方法分析了农田土壤真菌... 详细信息

通过研究辣椒长期连作对土壤真菌群落结构特征的影响,揭示连作障碍机制,以期为辣椒产地生态安全和产业可持续发展提供理论依据.以铜仁市某蔬菜大棚种植基地辣椒连作土壤为研究对象,采用Illumina MiSeq高通量测序方法分析了农田土壤真菌多样性和群落结构,探讨了土壤理化性质和真菌群落特征对长期辣椒连作的响应,采用典范对应分析(CCA)和相关性网络分析了土壤真菌群落结构与环境因子的互作关系.结果表明,土壤pH和有机质(OM)含量随着连作年限的延长而降低,全磷(TP)和有效磷(AP)含量随着连作年限的增加而增加,水解氮(AN)和速效钾(AK)含量呈先降低后上升的趋势,全氮(TN)和全钾(TK)含量变化则不明显.长期连作先降低后提高Chao1指数和Observed species指数,降低了Shannon指数和Simpson指数.在门水平上被孢霉门(Mortierellomycota)的相对丰度随着连作年限的延长而降低,子囊菌门(Ascomycota)呈先增加后降低的趋势,担子菌门(Basidiomycota)则呈先降低后增加的趋势.在属水平上植物病原菌镰刀菌属(Fusarium)的相对丰度随着连作年限的延长而增加,有益菌被孢霉属(Mortierella)和青霉属(Penicillium)则呈逐渐降低趋势.此外,长期连作还使土壤真菌共生网络变得简单.CCA结果表明,pH、OM、TN、AN、AP和AK是连作土壤真菌群落结构组成的主要环境因子,相关性网络分析结果显示,pH、OM、TN、TP、TK、AN、AP和AK是Fusarium、瓶毛壳属(Lophotrichus)、Penicillium、Mortierella、毛葡孢属(Botryotrichum)、圆孢霉属(Staphylotrichum)、小不整球壳属(Plectosphaerella)和顶孢霉属(Acremonium)等真菌群落结构的主要环境因子.综上所述,连作改变了土壤的理化性质,影响了土壤真菌群落的多样性和群落结构,改变了微生物间的互作关系,破坏了土壤的微生态平衡,可能是导致辣椒连作障碍的主要原因.

关键词：辣椒连作真菌群落结构环境因子典范对应分析(CCA) 相关性网络分析

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Prediction of Renal Function by Urinary Lead and Cadmium - Based on Classification Decision Tree and Logistic Regression Model

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Biomedical and Environmental Sciences 2024年第3期37卷 331-335页

作者： LI Yang WANG Qing Yao TIAN Qing Hua AN Qi YANG Yu Tong ZHANG Jia Chen LI Shuang Jing ZHOU Han liang Yun fen SHEN Wei Tong MU Li Na LEI Li Jian Department of Epidemiology School of Public HealthShanxi Medical UniversityTaiyuan 030001ShanxiChina Department of Epidemiology School of Public HealthShanxi Key Laboratory of Environmental Health Impairment and PreventionNHC Key Laboratory of PneumoconiosisMOE Key Laboratory of Coal Environmental Pathogenicity and PreventionShanxi Medical UniversityTaiyuan 030001ShanxiChina Department of Epidemiology and Environmental Health School of Public Health and Health ProfessionsThe State University of New York at BuffaloBuffaloNYUSA.

It is estimated that chronic kidney disease(CKD)will be the fifth leading cause of death in the world by 2040[1].Early recognition and intervention for kidney damage are *** glomerular filtration rate(eGFR)can be calculated by measuring blood creatinine to evaluate glomerular function,and urinary N-acetyl-β-δ-glucosaminidase(UNAG)level is generally recognized as a marker of renal tubular *** to lead(Pb)and cadmium(Cd)can damage renal function,leading to a decrease in eGFR and an increase in UNAG[2].Both Pb and Cd are easily accumulated in the body and then slowly released by the kidneys and ***,urinary Pb(UPb)and Cd(UCd)levels can be used as biomarkers of exposure[3,4].

关键词： urinary damage slowly

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双极膜研究进展及应用展望

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化工进展 2024年第1期43卷 145-163页

作者：罗芬杨晓琪段方麟李小江吴亮徐铜文中国科学技术大学化学与材料科学学院安徽合肥230026

双极膜是一类具有特殊“三明治”结构的离子交换膜。在反向偏压下,双极膜界面层独特的水解离行为使其具有在线生成H+和OH-能力,因而在酸碱生产、资源分离回收等领域发挥着越来越重要的作用。双极膜界面层催化剂的引入可以有效降低水解... 详细信息

双极膜是一类具有特殊“三明治”结构的离子交换膜。在反向偏压下,双极膜界面层独特的水解离行为使其具有在线生成H+和OH-能力,因而在酸碱生产、资源分离回收等领域发挥着越来越重要的作用。双极膜界面层催化剂的引入可以有效降低水解离反应电阻。然而,大部分双极膜由于界面层构筑不当使其存在水解离电压过高、膜层结合力差、催化剂泄漏以及第一极限电流密度大等问题,无法实现大规模的工业化制备及应用。因此,本文立足于双极膜及技术近期研究进展,从双极膜的水解离机理出发,综述了界面层催化剂的种类、界面构筑方式及膜层的复合工艺三个方面的研究进展,深度分析了浸蘸法、涂覆法、静电组装、原位生长、层层堆叠等界面催化剂固定方式的优缺点,力求为双极膜的规模化制备提供相应的理论支撑。文中也指出了双极膜在工业化酸碱生产过程中的瓶颈问题,提出了不对称双极膜电渗析在工业化酸碱生产应用中的关键作用。最后对双极膜的电化学应用前景进行了展望,即应该努力探索双极膜在电解水制氢、二氧化碳还原、电化学合成氨、燃料电池、液流电池等能源领域的应用前景,以此来推动双极膜的发展。

关键词：双极膜界面层催化剂水解离电化学应用

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First-line camrelizumab(a PD-1 inhibitor)plus apatinib(an VEGFR-2 inhibitor)and chemotherapy for advanced gastric cancer(SPACE):a phase 1 study

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1760-1767页

作者： Xiaofeng Chen Hao Xu Xiaobing Chen Tongpeng Xu Yitong Tian Deqiang Wang fen Guo Kangxin Wang Guangfu Jin Xiao Li Rong Wang fengyuan Li Yongbin Ding Jie Tang Yueyu Fang Jing Zhao liang Liu Ling Ma Lijuan Meng Zhiguo Hou Rongrong Zheng Yang Liu Ni Guan Bei Zhang Shuang Tong Shiqing Chen Xing Li Yongqian Shu Department of Oncology The First Affiliated Hospital with Nanjing Medical UniversityNanjingChina Gusu School Nanjing medical UniversitySuzhouChina Jiangsu Key Lab of Cancer Biomarkers Prevention and TreatmentCollaborative Innovation Center for Cancer Personalized MedicineNanjing Medical UniversityNanjingChina Department of General surgery The First Affiliated Hospital with Nanjing Medical UniversityNanjingChina Department of Oncology Henan Cancer Hospital Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhouChina Henan Engineering Research Center of Precision Therapy of Gastrointestinal Cancer&Zhengzhou Key Laboratory for Precision Therapy of Gastrointestinal Cancer ZhengzhouChina Department of Oncology Digestive Disease Institute&Cancer Institute of Jiangsu UniversityAffiliated Hospital of Jiangsu UniversityZhenjiangChina Department of Oncology Suzhou Hospital of Nanjing Medical UniversitySuzhouChina Department of Oncology Nanjing PuKou People’s HospitalNanjingChina Department of Epidemiology School of Public HealthNanjing Medical UniversityNanjingChina Department of Pathology The First Affiliated Hospital with Nanjing Medical UniversityNanjingChina Department of general surgery Jurong Branch hospital of Jiangsu Province People HospitalJurongChina Department of Medical Oncology Liyang People’s HospitalLiyangChina Department of radiology Nanjing PuKou People’s HospitalNanjingChina Jiangsu Hengrui Pharmaceuticals ShanghaiChina Department of Medical Affairs 3D Medicines Inc.ShanghaiChina Shanghai OrigiMed Co. Ltd.ShanghaiChina

Patients with advanced gastric cancer typically face a grim *** phase 1a(dose escalation)and phase 1b(dose expansion)study investigated safety and efficacy of first-line camrelizumab plus apatinib and chemotherapyfor advanced gastric or gastroesophageal junction *** primary endpoints included maximum tolerated dose(MTD)in phase 1a and objective response rate(ORR)across phase 1a and *** 1a tested three dose regimens of camrelizumab,apatinib,oxaliplatin,and *** regimen 1:camrelizumab 200 mg on day 1,apatinib 250 mg every other day,oxaliplatin 100 mg/m^(2) on day 1,and S-140 mg twice a day on days *** regimen 2:same as dose regimen 1,but oxaliplatin 130mg/*** regimen3:same as dose regimen 2,but apatinib 250 mg ***-four patients were included(9 in phase 1a,25 in phase 1b).No dose-limiting toxicities occurred so no MTD was *** 3 was set for the recommended phase 2 doses and administered in phase *** confrmed ORR was 76.5%(95%CI 58.8-89.3).The median progression-free survival was 8.4 months(95%CI 5.9-not evaluable[NE]),and the median overall survival(OS)was not mature(11.6-NE).Ten patients underwent surgery after treatment and the multidisciplinary team *** 24 patients without surgery,the median OS was 19.6 months(7.8-NE).Eighteen patients(52.9%)developed grade≥3 treatment-emergent adverse *** plus apatinib and chemotherapy showed favorable clinical outcomes and manageable safety for untreated advanced gastric cancer(ChiCTR2000034109).

关键词： regimen cancer doses

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