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生物化学与生物物理进展 2004年第2期31卷 172-176页

作者：刘赟王存新王宝翰陈慰祖北京工业大学生命科学与生物工程学院北京100022 中国科学院生物物理研究所北京100101

　提出一个简单有效的蛋白质设计方法 ,这一方法完全基于物理学原理 .与同类工作相比 ,该方法在很大程度上可节省对序列空间进行的搜索 ,是对同类工作的简化与发展 .对三个平面格子模型进行的检验表明该方法是成功的 .

关键词：蛋白质设计方法蛋白质逆折叠格子模型非格子模型

Pd@Ir-LOD multienzyme utilizing endogenous lactate consumption cooperates with photothermal for tumor therapy

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Nano Research 2024年第1期17卷 270-281页

作者： Zichen Ye yun Li Jingchao Li Xinyan Hu Jinyang Zheng Gongxin Zhang Sijin Xiang Tianbao Zhu Zhide Guo Xiaolan Chen State Key Laboratory for physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials and Engineering Research Center for Nano-Preparation Technology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics&Center for Molecular Imaging and Translational Medicine School of Public Health Xiamen UniversityXiamen 361102China The High Educational Key Laboratory for Biomedical Engineering&Key Laboratory of Fire Retardant Materials of Fujian Province Department of BiomaterialsCollege of MaterialsXiamen UniversityXiamen 361102China

Lactic acid(LA)plays a major role in the occurrence,development,and spread of *** by its high accumulation in tumor site,a novel lactate oxidase(LOD)conjugated two-dimensional Pd@Ir nanoplatform(Pd@Ir-LOD,PIL)was fabricated to combine cascade reaction with photothermal for tumor *** detail,the overexpressed LA in tumor microenvironment(TME)was a key factor to activate the PIL-based cascade reaction:(1)Plenty of H_(2.O_(2.could be generated from LA by the catalysis of LOD with O_(2.;(2.potent·OH was produced from H_(2.O_(2.due to the peroxidase(POD)-like activity of PIL;(3)meantime,PIL’s catalase(CAT)-like activity could decompose part H_(2.O_(2.into O_(2.to achieve the purpose of LA cyclic ***,the reduced glutathione(GSH)scavenging capability of PIL might protect the produced reactive oxygen species(ROS)from being cleared to further improve the cascade therapeutic *** importantly,PIL had excellent photothermal conversion efficiency(37.35%)and manifested a surprising temperature rising effect in *** together,the decreasing LA concentration,accumulation of high-toxic ROS,the depletion of GSH together with the higher intra-tumoral temperature potently enhanced in vivo antitumor ***,a promising therapeutic tactic based on PIL integrating endogenous LA consumption,chemodynamic therapy(CDT),and photothermal therapy(PTT)has been put forward.

关键词： lactate oxidase chemodynamic therapy photothermal therapy cascade reaction tumor microenvironment

Optics Characteristic Research of ZnO Nanowire Arrays Preparedby Porous Anodic Aluminum Oxide Template

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Optics Characteristic Research of ZnO Nanowire Arrays Prepar...

Design of bifunctional single-atom catalysts NiSA/ZIF-300 for CO_(2. conversion by ligand regulation strategy

中国光学学会2.10年光学大会

作者： Pan Zhi-feng 1,Li yun-tao 1,Yuan Yi-fang 2.(1 college of {2. engineering,Zhengzhou University,Henan,Zhengzhou 450000 2.college of optics and electronics engineering,University of Shanghai for science and technology,Shanghai 2.0093)

The AAO template used in this article was formed by anodizing aluminum in the oxalicacid of 0.3mol/L at 40V and through two-step anodizing *** AAO template was used to synthesize ZnO nanowire arrays by the method of electrochemical *** production can be proved to be ZnO nanowire arrays by transmission electronmicroscope electron diffraction image and energy dispersive X-ray *** TEM image shows that the diameter and length of the ZnO nanowires are about 50 nm and 2.μm,*** photoluminescence spectrum has a great contrast before and after having assembled ZnO *** photoluminescence spectrum display that the AAO template with ZnO nanowire arrays has two more emission peaks at 42. nm and 435 nm,and they are more intensive under the excitation with longer *** are different characters comparing with nanoparticles,nanorods and nanowires synthesized by other different *** is that the peak intensities aremore strong if excitation wavelengths are more longer;the other is that the band width is more *** explain the origin of the ZnO nanowire arrays emission spectrum,the main reason is the transition caused from conduction band to accepter energy rank and from almsgiver energy rank to acceptor energy rank;the two types of luminescence act together so that ZnO nanowire arrays have two close emission peaks;perhaps the other reason is the embellishment of ethanol Else,the reason of narrow bandwidth is ZnO nanowire arrays have the uniform size distribution.

关键词： ZnO nanowire arrays photoluminescence spectra AAO

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Nano Research 2024年第5期17卷 3827-3834页

作者： Wengang Fu Yapei yun Hongting Sheng Xiaokang Liu Tao Ding Shuxian Hu Tao Yao Binghui Ge Yuanxin Du Didier Astruc Manzhou Zhu Department of Chemistry and Centre for Atomic Engineering of Advanced Materials Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationCollege of Materials Science and EngineeringInstitutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized MaterialsAnhui UniversityHefei 230601China Universitéde Bordeaux ISMUMR CNRS N°5255351 Cours de La Libération33405 Talence CedexFrance National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230026China Department of Physics University of Science and Technology BeijingBeijing 100083China Anhui Tongyuan Environment Energy Saving Co. LtdHefei 230041China

Carbon-supported noble-metal-free single-atom catalysts(SACs)have aroused widespread interest due to their green chemistry aspects and excellent ***,we propose a“ligand regulation strategy”and achieve the successful fabrication of bifunctional SAC/MOF(MOF=metal-organic framework)nanocomposite(abbreviated NiSA/ZIF-300;ZIF=ZIF-8)with exceptional catalytic performance and *** designed NiSA/ZIF-300 has a planar interfacial structure with the Ni atom,involving one S and three N atoms bonded to Ni(Ⅱ),fabricated by controllable pyrolysis of volatile Ni-S *** CO_(2. cycloaddition to styrene epoxide,NiSA/ZIF-300 exhibits ultrahigh activity(turnover number(TON)=1.18×105;turnover frequency(TOF)=9830 molSC·mol_(Ni)^(-1)·h^(-1);SC=styrene carbonate)and durability at 70℃ under 1 atm CO_(2. pressure,which is much superior to Ni complex/ZIF,NiNP/ZIF-300,and most reported *** study offers a simple method of bifunctional SAC/MOF nanocomposite fabrication and usage,and provides guidance for the precise design of additional original SACs with unique catalytic properties.

关键词： single atom catalyst bifunctional CO_(2.conversion cycloaddition

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碳酸酐酶增强微生物矿化固土效果的试验研究

岩土力学 2024年第9期45卷 2554-2564页

作者：刘鹏曹源兴程钰白云波南京林业大学土木工程学院江苏南京210037 山东科技大学交通学院山东青岛266590 中铁上海工程局集团有限公司上海201906

为了提升微生物固化砂土的效果,从自然界微生物主动参与碳循环、激发碳化现象中得到启发,利用碳酸酐酶(carbonic anhydrase,简称CA)能显著提高CO_(2.水合反应速率(提高108倍),促进脲酶(urease,简称UA)分解尿素生成的CO_(2.迅速水合形成... 详细信息

为了提升微生物固化砂土的效果,从自然界微生物主动参与碳循环、激发碳化现象中得到启发,利用碳酸酐酶(carbonic anhydrase,简称CA)能显著提高CO_(2.水合反应速率(提高108倍),促进脲酶(urease,简称UA)分解尿素生成的CO_(2.迅速水合形成大量CO_(3)^(2.)的特性,设计并进行了碳酸酐酶增强微生物矿化固化砂土试验,综合宏观物理力学试验和微细观检测,系统分析了碳酸酐酶对微生物固化砂土的增强效果及增强机制。结果表明:(1)碳酸酐酶能够显著提高砂土微生物加固过程中的胶结物产量,碳酸酐酶菌掺量在4%左右达到最佳,与常规微生物诱导碳酸盐沉淀(microbial-induced carbonate precipitation,简称MICP)相比,胶结物生成量提高了105.3%。(2.碳酸酐酶的掺入提高了固化体的抗压强度和抵抗变形能力,在0.2.%~4.00%掺量范围内,固化土样的无侧限抗压强度随碳酸酐酶菌掺量的增加而增大。当掺量为4.00%时固化土样的强度达到1.915 MPa,为常规MICP固化试样强度的8.54倍。(3)碳酸酐酶没有改变MICP过程的产物,仍是方解石。但在添加了CA后,方解石的晶粒尺寸更大,六面体形状更规范,力学性能也更好。(4)在MICP过程中,脲酶和碳酸酐酶相互协同沉淀碳酸钙固化砂土。碳酸酐酶可以显著加速脲酶分解尿素生成的CO_(2.水合并形成HCO_(3-)和CO_(3)^(2.)的速率,为矿化物沉降提供更有利的条件。

关键词：碳酸酐酶微生物诱导碳酸盐沉淀(MICP) 矿化脲酶水合反应力学性能

Absorption characteristics,model,and molecular mechanism of hydrogen sulfide in morpholine acetate aqueous solution

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Chinese Journal of Chemical Engineering 2024年第2期66卷 125-135页

作者： Hongwei Jin yun Teng Kangkang Li Zhou Feng Zhonghao Li Shiqi Qu Hongzhi Xia Huanong Cheng Yugang Li Xinshun Tan Shiqing Zheng college of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China

The solubility of H_(2.S was measured in solutions of N-butyl-N-methylmorpholine acetate([Bmmorp][Ac])containing 2.%-40%(mass)water at experimental temperatures ranged from 2.8.15 to 32..15 K and pressures up to 32. k *** total solubility of H_(2.S increased with higher temperatures,lower pressures,and reduced water *** reaction equilibrium thermodynamic model was used to correlate the solubility *** results indicate that the chemical reaction equilibrium constant decrease with increasing water content and temperature,whereas Henry constant increase with increasing water content and *** with other ionic liquids,H_(2.S exhibits a higher physical absorption enthalpy and a lower chemical absorption enthalpy in[Bmmorp][Ac]aqueous *** suggests that[Bmmorp][Ac]has a strong physical affinity for H_(2.S and low energy requirement for *** chemical methods were used to investigate the molecular mechanism of H_(2.S absorption in ionic *** interaction energy analysis revealed that the binding of H_(2.S with the ionic liquid in a1:2.ratio is more *** analyses by the methods of the interaction region indicator and the atoms in molecules were conducted to the interactions between H_(2.S and the ionic liquid.

关键词： Ionic liquid Hydrogen sulfide Model Solubility Molecular mechanism

Functional dissimilarity in mixed forests promotes stem radial growth by mitigating tree water deficit

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National science Review 2024年第3期11卷 55-57页

作者：张宏图艾尤尔.亥热提白云旻郭焱培李珊 Bernhard Schmid Helge Bruelheide 马克平唐志尧 Institute of Ecology College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of Ministry of EducationPeking University college of Geography and Tourism Xinjiang Normal University State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of Sciences Department of Geography Remote Sensing LaboratoriesUniversity of Zurich Institute of Biology/Geobotany and Botanical Garden Martin Luther University Halle-Wittenberg German Centre for Integrative Biodiversity Research(iDiv)Halle-Jena-Leipzig

Tree growth is a key component of forest ecosystem functioning and is wellknown to be limited by water availability[1]. It is acknowledged that composition and diversity of co-occurring tree species can mitigate the influence of drought on tree growth through the resource complementarity for water use via niche partitioning and facilitation between different species [2.3].

关键词： RESILIENCE

THE DISTRIBUTION OF PREFERENTIAL PATHS AND ITS RELATION TO THE SOIL CHARACTERISTICS IN THE THREE GORGES AREA,china

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International Journal of Sediment Research 2007年第1期22卷 39-48页

作者： Hongjiang ZHANG1, Jinhua CHENG2. Yuhu SHI3, and yun CHENG41 Prof., 2.4 Lecturer college of Soil and Water Conservation, P O box 67, Beijing Forestry University, No. 35 Qinghua East Road, Beijing, 100083, {2., 3 Assoc. Prof., Forestry science Institute of Hubei Province, Wuhan, 430075, {2. Beijing Forestry Univ Coll Soil & Water Conservat Beijing 100083 Peoples R China Forestry Sci Inst Wuhan 430075 Hubei Peoples R China

To study the characteristics of the distribution of the preferential paths and the affecting factors in the Three Gorges area, four soil profiles were dug to observe the distribution of preferential paths in the Quxi watershed in the Yangtze River basin. The Morisita exponential test method was used to examine the distribution type of preferential paths. The physical properties and infiltration characteristics of the soil were also measured to evaluate their relationship to preferential paths. The results showed that in this area, preferential paths clustered and mainly distributed in the 80-100 cm soil layer, and along the interface between the weathered layer and semi-weathered layer. There were more non-capillary pores in the 83-110 cm layer than in the other layers. It can be derived that most non-capillary pores in this layer were preferential paths caused by geological processes and rotten plant roots. The percentage of coarse soil particles increased with the depth of the soil layer. In the deeper soil layer, the coarse soil particles helped the formation of preferential paths. The fastest steady infiltration rate was observed in the of 83-110cm layer, which is inferred to be due to the greater number of preferential paths.

关键词： Preferential paths Morisita exponential test physical properties of soil Infiltration characteristics of soil

基于静电纺丝技术对有色羊绒的剥色与降解再生

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上海纺织科技 2024年第1期52卷 9-14页

作者：王鑫白云麻文效内蒙古工业大学轻工与纺织学院内蒙古呼和浩特010080

为回收利用羊绒纤维,采用L-半胱氨酸协同二氧化硫脲体系对羊绒纤维进行剥色降解处理,提取其中的角蛋白与丝胶、聚乙烯醇(PVA)共混静电纺丝制备纤维膜以供纤维再生。探讨了角蛋白和PVA的质量比、纺丝液质量分数、角蛋白和丝胶的质量比以... 详细信息

为回收利用羊绒纤维,采用L-半胱氨酸协同二氧化硫脲体系对羊绒纤维进行剥色降解处理,提取其中的角蛋白与丝胶、聚乙烯醇(PVA)共混静电纺丝制备纤维膜以供纤维再生。探讨了角蛋白和PVA的质量比、纺丝液质量分数、角蛋白和丝胶的质量比以及静电纺丝设备电压、接收距离、注射速度对纺丝效果的影响。结果表明,最佳静电纺丝工艺如下:纺丝液质量分数为7%、角蛋白与PVA的质量比为30/70、角蛋白与丝胶的质量比为4∶1、设备电压为2. kV、接收距离为13 cm、流速为3 mL/h。制备的角蛋白/PVA纤维膜中纤维结构均匀,纤维膜表面光滑。随着角蛋白和丝胶质量比增大,角蛋白/丝胶/PVA纤维膜形貌变化不大,抗菌性能有所提高,对金黄色葡萄球菌和大肠埃希菌的抗菌率分别为55.32.和69.96%。

关键词：静电纺丝回收羊绒角蛋白剥色降解一浴法丝胶抗菌性

Magnetocaloric effect and phase transition critical behavior of La0.75Sr0.2.Mn0.9Co0.1O3 compound synthesized under the high pressure

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Tungsten 2024年第3期6卷 621-632页

作者： Jing Zhao Lei Gao Jian-Jun Zhao Wei Wei Hui-Qin yun Ru Xing Huai-Jin Ma Xiang Jin Luo-Meng Chao School of physical science and {2. Key Laboratory of Magnetism and Magnetic Materials for Higher Education in Inner Mongolia Autonomous Region Baotou Teachers' College National Key Laboratory of baiyunobo Rare Earth Resource Research and Comprehensive Utilization Baotou Research Institute of Rare Earths School of Physics and Electronic Information Inner Mongolia Normal University college of science Inner Mongolia University of Science and Technology

In this study,a novel method is proposed for producing perovskite rare-earth manganese oxide magnetic refrigeration materials that exhibit superior properties compared to similar *** maximum magnetic entropy change values for this sample are 1.44 and 3.75 J·kg-1·K-1for magnetic fields of 2.and 7 T,***,its relative cooling power has been calculated to be 101.96 and 404.78 J·kg-1,indicating good *** results were obtained using the sample synthesized under a pressure of 4 GPa,and the sample has undergone a second phase *** critical behavior of the sample fits well with the mean field *** different magnetic fields,there is a significant overlap between the values of the maximum magnetic entropy change and the temperature-averaged entropy change,indicating that the refrigeration performance of the sample after high pressure can approach its maximum capability.

关键词： High-pressure synthesis Magnetocaloric effect Relative cooling power Magnetic phase transition