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Chinese Journal of Chemical Engineering 2024年第2期66卷 136-144页

作者： Chenggong Song Zhenzhou ma Xu Hou Hao Zhou Huimin Qiao changchang Tian Li Yin Baitang Jin Enxian Yuan School of Chemical Engineering Changchun University of TechnologyChangchun130012China Department of Chemical and Biomolecular Engineering North Carolina State UniversityRaleighNC 27606USA School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou225009China

High-temperature treatment is key to the preparation of zeolite catalysts.Herein,the effects of hightemperature treatment on the property and performance of HZSM-5 zeolites were studied in this work.X-Ray diffraction,N2physisorption,27Al magic angle spinning nuclear magnetic resonance(maS NMR),and temperature-programmed desorption of ammonia results indicated that the hightemperature treatment at 650℃ hardly affected the inherent crystal and texture of HZSM-5zeolites but facilitated the conversion of framework Al to extra-framework Al,reducing the acid site and enhancing the acid strength.Moreover,the high-temperature treatment improved the performance of HZSM-5 zeolites in n-heptane catalytic cracking,promoting the conversion and light olefins yield while inhibiting coke formation.Based on the kinetic and mechanism analysis,the improvement of HZSM-5 performance caused by high-temperature treatment has been attributed to the formation of extra-framework Al,which enhanced the acid strength,facilitated the bimolecular reaction,and promoted the entropy change to overcome a higher energy barrier in n-heptane catalytic cracking.

关键词： HZSM-5 n-Heptane Catalytic cracking High-temperature treatment Extra-framework Al

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Recent research progress of bimetallic phosphides-based nanomaterials as cocatalyst for photocatalytic hydrogen evolution

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Chinese Chemical Letters 2022年第3期33卷 1141-1153页

作者： Chunmei Li Daqiang Zhu Shasha Cheng Yan Zuo Yun Wang changchang ma Hongjun Dong Advanced Chemical Engineering Laboratory of Green materials and Energy of Jiangsu Province Institute of Green Chemistry and Chemical TechnologySchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China Department of Chemistry Dongguk UniversitySeoul 04620Republic of Korea

Hydrogen energy(H_(2)) has been considered as the most possible consummate candidates for replacing the traditional fossil fuels because of its higher combustion heat value and lower environmental pollution.Photocatalytic hydrogen evolution(PHE) from water splitting based on semiconductors is a promising technology towards converting solar energy into sustainable H_(2)fuel evolution. Developing high-activity and abundant source semiconductor materials is particularly important to realize highly efficient hydrogen evolution as for photocatalysis technology. However, unmodified pristine photocatalysts are often unable to overcome the weakness of low performance due to their limitations. In recent years, transition metal phosphides(TMPs) were used as valid co-catalysts to replace the classic precious metal materials in the process of photocatalytic reaction owing to their lower cost and higher combustion heat value.What is more, bimetallic phosphides have been also caused widespread concern in H_(2)evolution reaction owing to its much lower overpotential, more superior conductivity, and weaker charge carriers transfer impedance in comparison to those of single metal phosphides. In this minireview, we concluded the latest developments of bimetallic phosphides for a series of photocatalytic reactions. Firstly, we briefly summarize the present loading methods of bimetallic phosphides(BMPs) anchored on the photocatalyst. After that, the H;evolution efficiency based on BMPs as cocatalyst is also studied in detail. Besides, the application of BMPs-based host photocatalyst for H_(2)evolution under dye sensitization effect has also been discussed. At last, the current development prospects and prospective challenges in many ways of BMPs are proposed. We sincerely hope this minireview has certain reference value for great developments of BMPs in the future research.

关键词： Bimetallic Phosphides Cocatalyst Photocatalysis Hydrogen evolution Dye Sensitization Effect

Construction of vesicle CdSe nano-semiconductors photocatalysts with improved photocatalytic activity:Enhanced photo induced carriers separation efficiency and mechanism insight

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Journal of Environmental Sciences 2017年第10期29卷 98-107页

作者： Jiangsu Wen changchang ma Pengwei Huo Xinlin Liu maobin Wei Yang Liu Xin Yao Zhongfei ma Yongsheng Yan School of the Environment and Safety Engineering Jiangsu University School of Chemistry and Chemical Engineering Jiangsu University School of Energy and Power Engineering Jiangsu University State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology

Visible-light-driven photocatalysis as a green technology has attracted a lot of attention due to its potential applications in environmental remediation. Vesicle Cd Se nano-semiconductor photocatalyst are successfully prepared by a gas template method and characterized by a variety of methods. The vesicle Cd Se nano-semiconductors display enhanced photocatalytic performance for the degradation of tetracycline hydrochloride, the photodegradation rate of78.824% was achieved by vesicle Cd Se, which exhibited an increase of 31.779% compared to granular Cd Se. Such an exceptional photocatalytic capability can be attributed to the unique structure of the vesicle Cd Se nano-semiconductor with enhanced light absorption ability and excellent carrier transport capability. Meanwhile, the large surface area of the vesicle Cd Se nano-semiconductor can increase the contact probability between catalyst and target and provide more surface-active centers. The photocatalytic mechanisms are analyzed by active species quenching. It indicates that h＋and UO2^-are the main active species which play a major role in catalyzing environmental toxic pollutants. Simultaneously, the vesicle Cd Se nano-semiconductor had high efficiency and stability.

关键词： Nano-semiconductor Vesicle CdSe Gas template Photocatalyst

Fabrication of HRP/Bi_(2)WO_(6) photoenzyme-coupled artificial catalytic system for efficiently degrading bisphenol A

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Chinese Chemical Letters 2021年第6期32卷 2047-2051页

作者： Hongjun Dong Ning Song Ming Yan Huihui Wu Haibo Zhang changchang ma Yun Wang Advanced Chemical Engineering Laboratory of Green materials and Energy of Jiangsu Province Institute of Green Chemistry and Chemical TechnologySchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China Department of Chemistry Dongguk UniversitySeoul 04620Republic of Korea

A novel photoenzyme-coupled artificial catalytic system is fabricated by immobilizing horseradish peroxidase(HRP)on the Bi_(2)WO_(6)hollow nanospheres via a facile electrostatic self-assembly process.The obtained Bi_(2)WO_(6)/HRP sample not only improves the visible light harvest ability but also promotes the high-efficiency separation of charge carriers.More importantly,the photogenerated electrons and produced H2O2 on Bi_(2)WO_(6)directly take part in redox cycle reactions of HRP to induce photoenzyme synergic catalytic effect.In consequence,the degradation activity of Bi_(2)WO_(6)/HRP is significantly improved relative to Bi_(2)WO_(6)and HRP for removing bisphenol A(BPA)under the visible light irradiation.This work launches a feasible design strategy for exploiting photoenzyme-coupled artificial catalytic system with special structure to degrade organic pollutants in water efficiently.

关键词： Photoenzyme-coupled Bi_(2)WO_(6)/HRP Synergistic catalytic effect BPA degradation Reaction mechanism

钙池操纵性钙内流对特应性皮炎上皮屏障功能的影响

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武汉大学学报（医学版） 2024年第4期45卷 406-412页

作者：曹灿刘光辉王畅畅马如雪贾欣睿钟剑高亚东武汉大学中南医院过敏反应科湖北武汉430071 华中科技大学协和深圳医院过敏防治中心广东深圳518052 武汉市第三医院皮肤科湖北武汉430060

目的:探讨钙池操纵性钙内流(SOCE)及其介导的钙信号在特应性皮炎(AD)上皮屏障破坏中的作用。方法:6周龄BALB/c小鼠,采取胶带粘贴及1%DNCB致敏法建立AD模型,分为对照组、AD组、SOCE抑制剂BTP2处理的AD组(AD-BTP2)和外用糖皮质激素处理的A... 详细信息

目的:探讨钙池操纵性钙内流(SOCE)及其介导的钙信号在特应性皮炎(AD)上皮屏障破坏中的作用。方法:6周龄BALB/c小鼠,采取胶带粘贴及1%DNCB致敏法建立AD模型,分为对照组、AD组、SOCE抑制剂BTP2处理的AD组(AD-BTP2)和外用糖皮质激素处理的AD组(AD-TCS)。采用组织学检查表皮厚度,通过皮水分丢失(TEWL)测定小鼠皮肤屏障功能。体外培养角质形成细胞HaCaT,分为对照组、尘螨(HDM)提取物刺激组和HDM刺激并BTP2干预组(HDM-BTP2),采用MTT法进行细胞增殖试验,RT-PCR、Western Blot法分别检测SOCE及上皮屏障相关基因的表达。FITC-右旋糖酐通透性实验评估HaCaT细胞屏障功能。结果:AD组小鼠较对照组小鼠的经皮水分丢失和表皮增厚均更为显著(P<0.0001);而BTP2处理后AD小鼠的经皮水分丢失(P<0.05)和表皮增厚(P<0.0001)进一步加重。HDM刺激可以促进HaCaT细胞的增殖,而BTP对细胞增殖没有影响。HDM刺激后HaCaT细胞SOCE相关蛋白Orai1~3,STIM1~2和SARAF的mRNA表达与对照组细胞无差异,但Orai1蛋白表达显著高于对照组(P<0.05)。HDM刺激HaCaT细胞后屏障相关闭合蛋白Occludin和兜甲蛋白Loricrin表达下调;而BTP2处理后可以恢复Occludin和增加E-cadherin的表达。HDM组HaCaT细胞的FITC-右旋糖酐通透性高于对照组细胞,而1μmol/L BTP2可以显著降低HDM诱导的FITC-右旋糖酐通透性改变。结论:在AD动物模型和细胞水平,SOCE抑制剂BTP2对上皮屏障具有相反的效应,提示SOCE在2型炎症中作用的复杂性,相关机制还需要进一步研究。

关键词：钙池操纵性钙内流特应性皮炎上皮屏障

钙池操纵的钙通道在屋尘螨诱导哮喘小鼠气道上皮屏障破坏中的作用

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武汉大学学报（医学版） 2024年第1期45卷 19-24页

作者：钟剑王畅畅戚世权马如雪曹灿胡家倩李永帅高亚东武汉大学中南医院过敏反应科湖北武汉430071 武汉大学基础医学院免疫学系湖北武汉430071

目的:研究钙池操纵的钙内流(SOCE)在哮喘小鼠气道上皮屏障破坏中的作用及可能机制。方法:建立屋尘螨(HDM)致敏的C57BL/6急性过敏性哮喘小鼠模型,分为正常对照组、哮喘模型组和SOCE阻断剂BTP-2干预的哮喘模型组,剔除造模过程中死亡鼠和... 详细信息

目的:研究钙池操纵的钙内流(SOCE)在哮喘小鼠气道上皮屏障破坏中的作用及可能机制。方法:建立屋尘螨(HDM)致敏的C57BL/6急性过敏性哮喘小鼠模型,分为正常对照组、哮喘模型组和SOCE阻断剂BTP-2干预的哮喘模型组,剔除造模过程中死亡鼠和肺泡灌洗失败小鼠,每组10只。肺组织HE染色评估肺组织炎症,酶联免疫吸附试验(ELISA)检测支气管肺泡灌洗液(BALF)中IL-13和血清中IgE水平。右旋糖酐通透性实验评估屏障通透性,肺免疫荧光及肺组织化学染色评估连接蛋白(ZO-1和occludin)的分布和表达,RT-PCR和Western Blot评估肺组织中连接蛋白的表达。结果:与正常对照组相比,HDM致敏的小鼠气道炎症加重,肺组织ZO-1、occludin的mRNA和蛋白表达水平显著降低,同时右旋糖酐通透性增高(P<0.0001);与哮喘模型组相比,BTP-2干预组小鼠气道炎症减轻,ZO-1、occludin的mRNA和蛋白表达水平较哮喘组增高,右旋糖酐通透性亦明显下降(P<0.0001)。结论:SOCE及其介导的钙信号可能参与了HDM诱导的小鼠气道上皮屏障的破坏。

关键词：屋尘螨气道上皮屏障钙池操纵的钙通道哮喘气道炎症

免疫共沉淀联合质谱技术筛选蓝舌病病毒NS4蛋白的互作蛋白

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中国畜牧兽医 2024年第2期51卷 779-789页

作者：马鲜平陈玉娟罗世美卓晓静杨义彬刘祎毅蔡旭研唐艺匀陈畅昶魏小蓉易华山西南大学动物医学院重庆402460 重庆高鑫生物科技有限公司重庆402460 西南大学医学研究院免疫学研究中心重庆402460

[目的]筛选蓝舌病病毒(Bluetongue virus, BTV)NS4蛋白颉颃干扰素(interferon, IFN)信号通路的内源性互作蛋白,以便进一步研究NS4抑制IFN信号转导的作用机制。[方法]在前期仙台病毒(Sendai virus, SeV)诱导IFN信号通路基因表达研究基础... 详细信息

[目的]筛选蓝舌病病毒(Bluetongue virus, BTV)NS4蛋白颉颃干扰素(interferon, IFN)信号通路的内源性互作蛋白,以便进一步研究NS4抑制IFN信号转导的作用机制。[方法]在前期仙台病毒(Sendai virus, SeV)诱导IFN信号通路基因表达研究基础上,利用免疫共沉淀方法从转染NS4融合eGFP标签表达载体pcDNA3.1-NS4-eGFP和pcDNA3.1-eGFP空载体的HEK-293T细胞中钓取NS4互作蛋白,对免疫沉淀物进行SDS-PAGE分析,免疫共沉淀洗脱液进行质谱鉴定及生物信息学分析,利用实时荧光定量PCR检测候选蛋白的编码基因表达特征。[结果]通过免疫共沉淀及质谱鉴定分析和数据库比对,共获得189个差异表达蛋白。生物信息学分析结果显示,候选蛋白主要参与蛋白转录、翻译、病毒感染及免疫调控。亚细胞定位分析结果显示,差异表达蛋白主要定位于细胞核、细胞质以及胞质-胞核,筛选出4个与BTV NS4蛋白存在互作的候选蛋白:多聚嘧啶束结合蛋白1(PTBP1)、细胞周期依赖性蛋白激酶9(CDK9)、N-端豆蔻酰化酶1(NMT1)和Y盒结合蛋白1(YBX1)。实时荧光定量PCR结果显示,与对照组相比,SeV刺激72 h后,试验组PTBP1、NMT1、YBX1、CDK9基因mRNA表达量均显著或极显著上调(P<0.05;P<0.01)。[结论]BTV NS4蛋白颉颃IFN信号通路与PTBP1、NMT1、YBX1、CDK9蛋白表达上调有关,本试验结果为进一步研究BTV NS4蛋白颉颃宿主天然免疫应答的分子机制提供靶标参考。

关键词：蓝舌病病毒(BTV) 免疫共沉淀质谱分析 NS4蛋白

In situ construction of BiVO_(4)(-)cellulose fibers@CDs(-)polyvinyl alcohol composites for tetracycline photocatalytic degradation

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Science China(Technological Sciences) 2021年第3期64卷 548-558页

作者： WANG Tao LIU XiQing ma changchang WEI maoBin HUO PengWei YAN YongSheng School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013China Institute of Green Chemistry and Chemical Technology Jiangsu UniversityZhenjiang 212013China School of materials Science and Engineering Jiangsu UniversityZhenjiang 212013China Department of Chemistry Dongguk UniversitySeoul 04620Republic of Korea College of Physics Jilin Normal UniversitySiping 136000China

Non-biodegradable and toxic photocatalysts pose as secondary threats to the environmental security.In this work,non-toxic biocomposites were prepared using natural bamboo cellulose fibers(CF),polyvinyl alcohols(PVAs),BiVO_(4),and carbon dots(CDs)from biomaterials.Thereafter,their optical properties,chemical characterizations,and photocatalytic performances were evaluated.The novel BiVO_(4)(-)CF@CDs(-)PVA composites were prepared via the combined implementation of in situ and impregnation methods.The optical properties revealed that the CDs and fibers increased the range and intensity of light absorption.The PVAs were used as the shield and dispersant to enhance stability because they have numerous chemical groups.In view of the various possible paths of electron migration,the enhanced photocatalytic activity of BiVO_(4)(-)CF@CDs(-)PVA composites for tetracycline degradation was observed under visible light illumination.The origins of the structure,morphology,and optical mechanism in the enhancement of the photocatalytic ability of BiVO_(4)(-)CF@CDs(-)PVA composites were discussed and demonstrated.

关键词： biodegradable bamboo fibers polyvinyl alcohol carbon dots BiVO_(4) mechanism

Recent advances in RNA structurome

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Science China(Life Sciences) 2022年第7期65卷 1285-1324页

作者： Bingbing Xu Yanda Zhu changchang Cao Hao Chen Qiongli Jin Guangnan Li Junfeng ma Siwy Ling Yang Jieyu Zhao Jianghui Zhu Yiliang Ding Xianyang Fang Yongfeng Jin Chun Kit Kwok Aiming Ren Yue Wan Zhiye Wang Yuanchao Xue Huakun Zhang Qiangfeng Cliff Zhang Yu Zhou MOE Laboratory of Biosystems Homeostasis&Protection Innovation Center for Cell Signaling NetworkCollege of Life SciencesZhejiang UniversityHangzhou 310058China Key Laboratory of RNA Biology Institute of BiophysicsChinese Academy of SciencesBeijing 100101China Life Sciences Institute Zhejiang UniversityHangzhou 310058China State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China State Key Laboratory of Virology College of Life SciencesWuhan UniversityWuhan 430072China Beijing Advanced Innovation Center for Structural Biology School of Life SciencesTsinghua UniversityBeijing 100084China Stem Cell and Regenerative Biology Genome Institute of SingaporeA*STARSingaporeSingapore Department of Chemistry and State Key Laboratory of Marine PollutionCity University of Hong KongHong KongChina MOE Key Laboratory of Bioinformatics Beijing Advanced Innovation Center for Structural Biology and Frontier Research Center for Biological StructureCenter for Synthetic and Systems BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China Tsinghua-Peking Center for Life Sciences Beijing 100084China Department of Cell and Developmental Biology John Innes CentreNorwich Research ParkNorwich NR47UHUnited Kingdom Shenzhen Research Institute of City University of Hong Kong Shenzhen 518057China University of Chinese Academy of Sciences Beijing 100101China Key Laboratory of Molecular Epigenetics of the Ministry of Education Northeast Normal UniversityChangchun 130024China

RNA structures are essential to support RNA functions and regulation in various biological processes. Recently, a range of novel technologies have been developed to decode genome-wide RNA structures and novel modes of functionality across a wide range of species. In this review, we summarize key strategies for probing the RNA structurome and discuss the pros and cons of representative technologies. In particular, these new technologies have been applied to dissect the structural landscape of the SARS-CoV-2 RNA genome. We also summarize the functionalities of RNA structures discovered in different regulatory layers-including RNA processing, transport, localization, and mRNA translation-across viruses, bacteria, animals, and plants. We review many versatile RNA structural elements in the context of different physiological and pathological processes(e.g., cell differentiation, stress response, and viral replication). Finally, we discuss future prospects for RNA structural studies to map the RNA structurome at higher resolution and at the single-molecule and single-cell level, and to decipher novel modes of RNA structures and functions for innovative applications.

关键词： RNA structurome high-throughput techniques genome-wide 3D structure RNA secondary structure SARS-CoV-2 decoding function

High-temperature treatment to engineer the single-atom Pt coordination environment towards highly efficient hydrogen evolution

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Journal of Energy Chemistry 2021年第8期30卷 212-219,I0005页

作者： Shanyong Chen changchang Lv Ling Liu Muhong Li Jian Liu Jinyang ma Panpan Hao Xuan Wang Weiping Ding Mingjiang Xie Xuefeng Guo Key Lab of Mesoscopic Chemistry MOE School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Hubei Key Laboratory for Processing and Application of Catalytic materials Huanggang Normal UniversityHuanggang 438000China

Development of high-performance and cost-effective catalysts for electrocatalytic hydrogen evolution reaction(HER)play crucial role in the growing hydrogen economy.Recently,the atomically dispersed metal catalysts have attracted increasing attention due to their ultimate atom utilization and great potential for highly cost-effective and high-efficiency HER electrocatalyst.Herein,we propose a hightemperature treatment strategy to furtherly improve the HER performance of atomically dispersed Ptbased catalyst.Interestingly,after appropriate high-temperature treatment on the atomically dispersed Pt0.8@CN,the Pt species on the designed N-doped porous carbon substrate with rich defect sites can be re-dispersed to single atom state with new coordination environment.The obtained Pt0.8@CN-1000 shows superior HER performance with overpotential of 13 m V at 10 m A cm^(-2)and mass activity of 11,284 m A/mgPtat-0.1 V,much higher than that of the pristine Pt0.8@CN and commercial Pt/C catalyst.The experimental and theoretical investigations indicate that the high-temperature treatment induces the restructuring of coordination environment and then the optimized Pt electronic state leads to the enhanced HER performances.This work affords new strategy and insights to develop the atomically dispersed high-efficiency catalysts.

关键词： High-temperature treatment Atomically dispersed metal catalyst Coordination environment Hydrogen evolution reaction