检索结果-南通市图书馆

OsPHR2-mediated recruitment of Pseudomonadaceae enhances rice phosphorus uptake

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2024年第8期5卷 137-146页

作者： Jianping Liu Weifeng Xu Qian Zhang Wencheng Liao Liang Li Shu Chen Jinyong Yang Zhengrui Wang Feiyun Xu Center for Plant Water-use and Nutrition Regulation and College of JunCao Science and Ecology Joint International Research Laboratory of Water and Nutrient in CropFujian Agriculture and Forestry UniversityFuzhou 350002China

Plants can shape their root microbiome to promote growth and nutrient *** STARVATION RESPONSE 2(OsPHR2)is a central regulator of phosphate signaling in rice,but whether OsPHR2 can shape the root microbiome to promote phosphorus uptake is ***,we investigate the role of OsPHR2 in recruiting microbiota for phosphorus uptake using high-throughput sequencing and metabolite ***2-overexpressing(OsPHR2 OE)rice showed 69.8%greater shoot P uptake in natural soil compared with sterilized soil under high-phosphorus(HP)conditions,but there was only a 54.8%increase in the wildtype(WT).The abundance of the family Pseudomonadaceae was significantly enriched in OsPHR2 OE roots relative to those of WT *** with the WT,OsPHR2 OE rice had a relatively higher abundance of succinic acid and methylmalonic acid,which could stimulate the growth of Pseudomonas sp.(P6).After inoculation with P6,phosphorus uptake in WT and OsPHR2 OE rice was higher than that in uninoculated rice under low-phosphorus(LP)*** together,our results suggest that OsPHR2 can increase phosphorus use in rice through root exudate-mediated recruitment of *** finding reveals a cooperative contribution of the OsPHR2-modulated root microbiome,which is important for improving phosphorus use in agriculture.

关键词： OsPHR2 rice organic acid phosphorus Pseudomonadaceae

Intensity correlation properties of x-ray beams split with Laue diffraction

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第1期33卷 379-383页

作者：赵昌哲司尚禹张海鹏薛莲李中亮肖体乔 Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China

Beam splitting is one of the main approaches to achieving x-ray ghost imaging, and the intensity correlation between diffraction beam and transmission beam will directly affect the imaging quality. In this paper, we investigate the intensity correlation between the split x-ray beams by Laue diffraction of stress-free crystal. The analysis based on the dynamical theory of x-ray diffraction indicates that the spatial resolution of diffraction image and transmission image are reduced due to the position shift of the exit beam. In the experimental setup, a stress-free crystal with a thickness of hundredmicrometers-level is used for beam splitting. The crystal is in a non-dispersive configuration equipped with a double-crystal monochromator to ensure that the dimension of the diffraction beam and transmission beam are consistent. A correlation coefficient of 0.92 is achieved experimentally and the high signal-to-noise ratio of the x-ray ghost imaging is *** of this paper demonstrate that the developed beam splitter of Laue crystal has the potential in the efficient data acquisition of x-ray ghost imaging.

关键词： x-ray ghost imaging beam splitting with Laue diffraction intensity correlation dynamical theory of x-ray diffraction

Stimuli-responsive coordination polymers toward next-generation smart materials and devices

在线全文

学校读者我要写书评

暂无评论

eScience 2024年第3期4卷 1-31页

作者： Feifan Lang Jiandong Pang Xian-He Bu School of Materials Science and Engineering Smart Sensing Interdisciplinary Science CenterTKL of Metal and Molecule-Based Material ChemistryCollaborative Innovation Center of Chemical Science and EngineeringNankai UniversityTianjin 300350China State key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China State key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002China

Stimuli-responsive coordination polymers(CPs)are among one of the most prolific research areas in developing the next-generation functional *** capability of being accurately excited by particular external changes with pre-determined and observable/characterizable behaviors correspond,are the so called“stimuli”and“responsive”.Abundant types of CP compounds,especially metal-organic frameworks(MOFs),are of rocketing interest owing to their compositional diversity,structural tunability,and in essence their highly engineerable *** present review is aimed to sketch several common types of stimulation and the corresponding responses for CPs,accompanied with the broad logic and mechanisms *** further from the aspect of material revolution,some representative progresses together with the latest advances of CP-based materials in various fields are covered in attempt to display a broader picture towards the possible prospects of this topic.

关键词： Coordinationpolymers Metal-organicframeworks Stimuli-responsive Smart materials

Enhanced photocatalytic N_(2) fixation using KNbO3/Bi_(4)O_(5)Br_(2) type Ⅱ heterojunction

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2024年第6期18卷 85-97页

作者： Lin Yue Zhihao Zeng Xujie Ren Shude Yuan Chuanqi Xia Xin Hu Leihong Zhao Lvchao Zhuang Yiming He key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China Department of Materials Science and Engineering Zhejiang Normal UniversityJinhua 321004China

The fabrication of heterojunction catalysts is an effective strategy to enhance charge separation efficiency,thus boosting the performance of *** work presents the synthesis and investigation of a novel KNbO_(3)/Bi_(4)O_(5)Br_(2) heterostructure catalyst for photocatalytic N_(2)-to-NH_(3) conversion under light *** morphology analysis revealed KNbO_(3) microcubes embedded within Bi_(4)O_(5)Br_(2) nanosheets,the composite exhibited no significant improvement in specific surface area or optical property compared to Bi_(4)O_(5)Br_(2) due to the relatively wide band gap and low surface area of KNbO_(3).The main contribution lies in the enhanced separation efficiency of photogenerated electrons and ***,the band structure analysis suggests that KNbO_(3) and Bi_(4)O_(5)Br_(2) exhibit suitable band potentials to form a type II *** from the higher Fermi level of KNbO_(3) than Bi_(4)O_(5)Br_(2),the electron drift at the contact region thus occurs and leads to the formation of a built-in electric field with the direction from KNbO_(3) to Bi_(4)O_(5)Br_(2),accelerating electron migration and improving the operational efficiency of the ***,the KNbO_(3)/Bi_(4)O_(5)Br_(2) catalyst shows an increased photoactivity,achieving an NH_(3) generation rate 1.78 and 1.58 times those of KNbO_(3) and Bi_(4)O_(5)Br_(2),*** work may offer valuable insights for the design and synthesis of heterojunction composite photocatalysts.

关键词： KNbO_(3)/Bi_(4)O_(5)Br_(2) heterojunction photocatalytic N_(2)fixation charge separation

Green synthesis of luminescent La-MOF nanoparticle from waste poly(ethylene terephthalate) for high-performance in Fe(Ⅲ) detection

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第8期43卷 3833-3843页

作者： Zhi Gong Zhi-Kui Dai Zhi-Yue Dong Qiu-Xuan Liu Valentin A.Milichko Hua-Jian Liu Jie Liu Ran Niu Jiang Gong key Laboratory of Material Chemistry for Energy Conversion and Storage Hubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSemiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringMinistry of EducationHuazhong University of Science and TechnologyWuhan 430074China School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430073China Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical EngineeringHubei UniversityWuhan 430062China School of Physics and Engineering ITMO UniversitySt.Petersburg197101Russia School of Materials Science and Engineering Hubei UniversityWuhan430062China Guangdong Provincial key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing School of Mechanical and Automotive EngineeringKey Laboratory of Polymer Processing EngineeringMinistry of EducationSouth China University of TechnologyGuangzhou 510641China

Developing luminescent metal-organic frameworks(MOFs) capable of high-efficiency Fe^(3+)sensing has aroused great attraction in the fields of biology,chemistry,***,previous solvothermal methods are limited by organic solvent usage,time consuming,high pressure,and high-energy ***,we propose the waste-toMOF strategy towards the scale-up production of La-MOF nanoparticles through the ball milling of recycled poly(-ethylene terephthalate)(PET) bottles and La(NO_(3))_(3)·_(6)H_(2)*** goes on alkaline hydrolysis to form 1,4-benzenedicarboxylic acid sodium salt(Na_(2)BDC) and ethylene glycol by ball ***,BDC reacts with La^(3+)to form *** as-prepared La-MOF crystal nanoparticles possess a rod-like morphology with the size of few hundred ***,La-MOF nanoparticles display high selectivity and sensitivity for Fe^(3+)*** quenching constant and limit of detection are 5.29×10^(3)(mol·L^(-1))^(-1) and 0.147 μmol·L^(-1),respectively,thus surpassing many advanced Fe^(3+) *** to the result of density functional theory,the high Fe^(3+) detection performance of La-MOF is related to the complexing of Fe^(3+)with La-MOF,which leads to the gradual dissociation of the coordination bond between terephthalic acid and La^(3+).It is anticipated that the mechanochemistry milling-based wasteto-MOF strategy provides a new platform for the massive production of functional MOFs in a green manner.

关键词： Metal-organic framework Waste polyester Mechanochemistry milling Fluorescence sensor

High expression of GPR160 in prostate cancer is unrelated to CARTp-mediated signaling pathways

在线全文

学校读者我要写书评

暂无评论

Acta Pharmaceutica Sinica B 2024年第3期14卷 1467-1471页

作者： Chenyu Ye Qingtong Zhou Shi Lin Wensheng Yang Xiaoqing Cai Yiting Mai Yanyan Chen Dehua Yang Ming-Wei Wang Department of Pharmacology School of Basic Medical SciencesFudan UniversityShanghai 200032China research Center for Deepsea Bioresources Sanya 572025China Department of Pharmacy Children’s Hospital of Fudan UniversityNational Children’s Medical CenterShanghai 201102China State key Laboratory of Chemical Biology Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China The national Center for Drug Screening Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China University of Chinese Academy of Sciences Beijing 100049China Department of Chemistry School of Sciencethe University of TokyoTokyo 113-0033Japan School of Pharmacy Hainan Medical UniversityHaikou 571199China

To the Editor:G protein-coupled receptors(GPCRs)are the largest group of membrane proteins with over 800 members,characteristic of a seven transmembrane *** playing crucial roles in regulation of various physiological processes,GPCRs have been implicated in many diseases including diabetes,obesity,depression and *** initiate different intracellular responses,GPCRs mainly interact with three families of effector proteins upon agonist binding:the heterotrimeric G proteins,G protein-coupled receptor kinases(GRKs)and arrestins1.

关键词： GPR160 CARTp Prostate cancer Signaling pathway

Functionalization of covalent organic frameworks via multicomponent reactions

在线全文

学校读者我要写书评

暂无评论

Science china Chemistry 2024年

作者： Xue-Hui Liu Peng-Lai Wang Wei Wang San-Yuan Ding State key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering MOE Frontiers Science Center for Rare Isotopes Lanzhou University

Functionalized covalent organic frameworks (COFs) represent a fascinating class of porous materials that have attracted widespread interest due to their modifiable structures and impressive potential applications. However, the construction of functionalized COFs remains difficult as it requires simultaneous consideration of robust linkages, diversified structures, and tailorable functionalities. Recently, the introduction of multicomponent reactions (MCRs) into COF synthesis opens new avenues for creating highly stable and function-oriented COF materials, marking a significant advance in the development of COFs. This minireview summarizes the types of MCRs used in COF synthesis, highlights the functionalization strategies of COFs via MCRs, and provides insights on the key challenges and future frontiers in this field.

关键词：

Investigation into epitaxial growth optimization of a novel AlGaN/GaN HEMT structure for application in UV photodetectors

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science china Materials 2024年第9期67卷 2828-2837页

作者： Zhiyuan Liu Wanglong Wu Xiong Yang Menglong Zhang Lixiang Han Jianpeng Lei Quansheng Zheng Nengjie Huo Xiaozhou Wang Jingbo Li School of Semiconductor Science and Technology Guangdong Provincial Key Laboratory of Chip and Integration TechnologySouth China Normal UniversityFoshan528225China College of Optical Science and Engineering Zhejiang UniversityHangzhou310027China Zhejiang Xinke Semiconductor Co. Ltd.Hangzhou311400China Jiangxi Engineering Laboratory for Optoelectronics Testing Technology Nanchang Hangkong UniversityNanchang330063China Department of Applied Physics School of Physics and ElectronicsHunan UniversityChangsha410082China

In this work,a novel ultraviolet(UV)photodetector(PD)based on AlGaN/u-GaN/p-GaN/u-GaN heterojunction high electron mobility transistor(HEMT)has been *** HEMT epilayer is grown using the metal-organic chemical vapor deposition(MOCVD)technique,and the growth parameters,including the AlGaN growth temperature,preheating temperature of the p-GaN layer,and NH3/N2 flow rate,are optimized to improve the quality of the *** optimized epilayer exhibits a flat surface with a root mean square value of 0.146 nm and low dislocation *** p-GaN thickness in epitaxial wafers has a significant influence on electrical and UV *** a p-GaN of 1µm,the UV PD demonstrates a significant switching ratio and transconductance of 107 and 127.3 mS mm^(-1),*** as a UV PD,it also exhibits a high light on/off ratio(I_(light)/I_(dark))of 6.35×10^(5),a high responsivity(R)of 48.11 A W^(-1),and a detectivity(D*)of 6.85×10^(12)Jones under 365-nm UV illumination with light power density of 86.972 mW cm^(-2).The high-performance HEMT and UV detectors,which incorporate p-GaN etchless technology,have been refined through advancements in epitaxial growth and structural *** improvements solidify the groundwork for large-scale manufacturing of UV communication systems and laser diodes.

关键词： AlGaN/GaN-based HEMT epitaxial growth by MOCVD p-GaN/u-GaN junction UV photodetector

基于刮涂法制备锂掺杂柔性铜锌锡硫硒薄膜太阳电池

在线全文

学校读者我要写书评

暂无评论

Science china Materials 2024年第1期67卷 67-75页

作者：徐菡葛思洁王滔顾鄂宁林显忠 Guangzhou key Laboratory of Flexible Electronic Materials and Wearable Devices State Key Laboratory of Optoelectronic Materials and TechnologiesNanotechnology Research CenterSchool of Materials Science and EngineeringSun Yat-Sen UniversityGuangzhou 510275China key Laboratory of Polymeric Composite and Functional Materials of Ministry of Education Sun Yat-Sen UniversityGuangzhou 510275China

锂掺杂有利于提高铜锌锡硫硒薄膜太阳电池的性能.然而,传统旋涂含锂前驱体溶液的掺杂策略在前驱膜的逐层沉积过程中,由于锂的再溶解而导致大量的锂流失.在本工作中,我们通过刮涂法在柔性钼箔衬底上制备了铜锌锡硫硒薄膜,实现锂的有效掺... 详细信息

锂掺杂有利于提高铜锌锡硫硒薄膜太阳电池的性能.然而,传统旋涂含锂前驱体溶液的掺杂策略在前驱膜的逐层沉积过程中,由于锂的再溶解而导致大量的锂流失.在本工作中,我们通过刮涂法在柔性钼箔衬底上制备了铜锌锡硫硒薄膜,实现锂的有效掺杂,并进一步研究了锂掺杂对器件性能的影响.随着锂掺杂含量的增加,吸收层晶粒尺寸变大,这可能与硒化过程中锂-硒液相的形成有关.而且,锂可以进入铜锌锡硫硒晶格中,并在吸收层的表面积累,从而钝化缺陷,提升p-n结质量.因此,适量的锂掺杂可以提高器件的性能.此外,本工作探索了锂-钠共掺的影响.有趣的是,与Li-10%样品相比,钠元素的引入增强了吸收层拉曼光谱在328 cm^(-1)处硫的振动信号.10%锂钠共掺可将柔性Cu_(2)ZnSn(S,Se)_(4)薄膜太阳电池的效率进一步从6.62%提高到7.59%.本工作提供了一种基于刮涂法、简单有效的锂掺杂策略,并证明了锂-钠共掺存在相互作用机制.

关键词：薄膜太阳电池锂掺杂铜锌锡硫硒吸收层钠元素拉曼光谱器件性能刮涂法