检索结果-南通市图书馆

Substrate orientation effect in covalent organic frameworks/2D materials heterostructure by high-resolution atomic force microscopy

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第7期16卷 10047-10052页

作者： lu wang Cheng lu Huijuan Yan Dong wang CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Science(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Heterostructures based on covalent organic frameworks(COFs)and other two-dimensional(2D)materials attract considerable attention due to their extraordinary properties and tremendous application *** effects play a crucial role in the integration of ultrathin COF films onto 2D materials through direct *** this study,highly ordered monolayer COFs were successfully constructed on the surfaces of highly oriented pyrolytic graphite(HOPG),hexagonal boron nitride(hBN),and molybdenum disulfide(MoS_(2)).High-resolution atomic force microscopy(HR-AFM)imaging clearly reveals the substrate orientation effect in COFs/2D materials *** networks formed via Schiff-base reaction and boronic acid condensation reaction can epitaxially grow in specific orientations relative to the underlying substrate *** work provides direct evidence for substrate effects in the on-surface synthesis of COFs and paves the way for further investigation into the intrinsic electronic properties of monolayer COFs and the development of multifunctional hybrid devices.

关键词： substrate orientation effect covalent organic frameworks(COFs) on-surface synthesis high-resolution atomic force microscopy(HR-AFM)

Identification of cancer gene fusions based on advanced analysis of the human genome or transcriptome

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 Medicine 2013年第3期7卷 280-289页

作者： lu wang Department of Pathology Memorial Sloan-Kettering Cancer CenterNew YorkNY 10065USA

Many gene fusions have been recognized as important diagnostic and/or prognostic markers in human *** recent years,novel gene fusions have been identified in cases without prior knowledge of the genetic *** by a powerful computational data analysis method,new genome-wide screening approaches were used to detect cryptic genomic *** review focused on advanced genome-wide screening approaches in fusion gene identification,such as microarray-based approaches,next-generation sequencing,and NanoString nCounter gene expression *** fundamental rationale and strategy for fusion gene identification using each biotech platform are also discussed.

关键词： gene fusion cancer microarray next-generation sequencing NanoString nCounter system

Two-dimensional Covalent Organic Frameworks: Tessellation by Synthetic Art

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2022年第2期38卷 265-274页

作者： wang lu wang Dong Key Laboratory of Molecular Nanostructure and Nanotechnology Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China University of the Chinese Academy of Sciences Beijing 100049P.R.China

Covalent organic frameworks(COFs)featuring designable nanoporous structures exhibit many fascinating properties and have attracted great attention in recent years for their intriguing application potential in sensing,catalysis,gas storage and separation,optoelectronics,*** design of twodimensional(2D)COFs through judiciously selecting chemical building blocks is critical to acquiring predetermined skeleton and pore *** this perspective,we review the reticular synthesis of 2D COFs with different topologies,highlighting the important role of various characterization techniques in crystal structure determination.2D COFs with simple tessellations have been widely investigated,while the synthesis of complex tessellated COFs is still a great *** recent examples of 2D COFs with novel topological structures are also surveyed.

关键词： Reticular design Covalent organic framework Topology Characterization technique

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

低氧暴露后大鼠外周血及骨髓红系的变化

中国组织工程研究 2025年第25期29卷 5390-5395页

作者：熊华李金杰王璐马婕青海大学附属医院(临床医学院) 青海省西宁市810001

背景:低氧暴露下大鼠外周血红细胞变化与骨髓有核红细胞增殖变化相关。低氧诱导因子、促红细胞生成素等相关调控因素参与其中。目的:探讨大鼠低氧暴露后外周血红细胞及骨髓有核红细胞的变化特点及相关因素。方法:模拟海拔5000 m的低压... 详细信息

背景:低氧暴露下大鼠外周血红细胞变化与骨髓有核红细胞增殖变化相关。低氧诱导因子、促红细胞生成素等相关调控因素参与其中。目的:探讨大鼠低氧暴露后外周血红细胞及骨髓有核红细胞的变化特点及相关因素。方法:模拟海拔5000 m的低压低氧环境建立实验大鼠模型,对照组大鼠饲养在海拔2260 m的实验室内,对比低氧暴露前后大鼠血常规、骨髓有核红细胞比例及低氧诱导因子、促红细胞生成素等相关指标。结果与结论:①实验组大鼠外周血红细胞计数、血红蛋白、红细胞压积等指标较对照组升高(P<0.05);②实验组大鼠骨髓CD71^(+)有核红细胞比例较对照组升高(P<0.05);③实验组大鼠骨髓CD71^(+)有核红细胞中低氧诱导因子2α表达水平较对照组升高(P<0.05);④实验组大鼠骨髓上清液促红细胞生成素水平较对照组升高(P<0.05)。结果表明,低氧暴露后大鼠外周血红细胞及骨髓有核红细胞比例增高,可能与骨髓有核红细胞中低氧诱导因子2α及骨髓上清液中促红细胞生成素水平增高有关。

关键词：低氧大鼠外周血红细胞骨髓有核红细胞

Growth of continental crust in intra-oceanic and continental-margin arc systems: Analogs for Archean systems

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2022年第9期65卷 1615-1645页

作者： Timothy KUSKY lu wang State Key Lab for Geological Processes and Mineral Resources Center for Global TectonicsSchool of Earth SciencesChina University of GeosciencesWuhan 430074China Badong National Observatory and Research Station for Geohazards China University of GeosciencesWuhan 430074China

Earth’s continental crust has grown and been recycled throughout geologic history along convergent plate *** main locus of continental crustal growth is in intra-oceanic and continental-margin arc systems in Archean time. In arc systems, oceanic lithosphere is subducted to the deeper mantle, and together with its overlying sedimentary sequence is in some cases off-scraped to form accretionary prisms. Fluids are released from the subducting slab to chemically react with the mantle wedge, forming mafic-ultramafic metasomatites, whose partial melting generates mafic melts that rise up to form arcs. In intraoceanic arcs, they produce dominantly basaltic lavas, with a mid-crust that includes variably-developed vertically-walled intermediate plutons and higher-level dikes and sills. In continental-margin arcs, different petrogenetic processes cause assimilation and fractionation of basaltic magmas, partial melting/reworking of juvenile basaltic rocks, and mixing of mantle-and crust-derived melts, so they produce andesitic calc-alkaline melts but still have a mid-crust dominated by vertically-walled felsic plutons, which form 3-D dome-and-basin structures, akin to those in some Archean terranes such as parts of the Pilbara and Zimbabwe cratons. Notably, the continental crust of Archean times is dominated by tonalite-trondhjemite-granodiorite(TTG)plutons, similar to that of the mid-crust of these arc systems, suggesting that early continental crust may have formed largely by the amalgamation of multiple arc systems. The patterns of magmatism, in terms of petrogenesis, rock types, duration of magmatic and accretionary events, and the spatial scales of deformation and magmatism have remained essentially the same throughout geological history, demonstrating that plate tectonic processes characterized by subduction and arc magmatism have been in operation at least as long as recorded by the preserved geologic record, since the Eoarchean. However, the early Earth was dom

关键词： Oceanic arc Continental arc Accretionary orogen Archean Crustal growth

Emerging functions of tRNA modifications in mRNA translation and diseases

在线全文

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2023年第4期50卷 223-232页

作者： lu wang Shuibin Lin Department of Medical Laboratory School of Laboratory Medicine and BiotechnologySouthern Medical UniversityGuangzhouGuangdong 510515China Center for Translational Medicine Precision Medicine InstituteThe First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong 510080China State Key Laboratory of Oncology in South China Sun Yat-sen University Cancer CenterGuangzhouGuangdong 510080China

tRNAs are essential modulators that recognize mRNA codons and bridge amino acids for mRNA *** tRNAs are heavily modified,which are essential for forming a complex secondary structure that facilitates codon recognition and mRNA *** recent years,studies have identified the regulatory roles of tRNA modifications in mRNA translation *** of tRNA modifications is closely related to the progression of developmental diseases and *** this review,we summarize the tRNA biogenesis process and then discuss the effects and mechanisms of tRNA modifications on tRNA processing and mRNA ***,we provide a comprehensive overview of the physiological and pathological functions of tRNA modifications,focusing on diseases including cancers.

关键词： tRNAmodification tRNA processing Translation Cancer Developmental diseases

Deterioration Characteristics of Cement-Fly Ash Paste under Strong Ultraviolet Radiation and Low Temperature Conditions

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2018年第5期33卷 1092-1098页

作者： LIU Shuhua wang lu wang Lei State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan 430072China Nanchang Key Laboratory of Material and Structure Detection Jiangxi University of TechnologyNanchang 330098China Guangxi Key Laboratory of New Energy and Building Energy Saving Guilin University of TechnologyGuilin 541004China

The pastes containing different dosages of fly ash were taken into ultraviolet radiation and low temperature freeze condition simultaneously（URL）for 30 days and only ultraviolet radiation condition（UR）for 30 days after standard curing,so as to investigate the influences of the conditions on the deterioration characteristics of the *** test methods,such as XRD,TG-DTA and SEM,were used to study the UR effect on the deterioration process of hardened *** results show that the deterioration tests,such as URL and UR,inhibit the common development of paste strength,especially after the standard curing age of *** the increase of fly ash dosage,from 0 to 50%,the reference value decreases,especially at early *** at the later age,i e,180 and 360 days,the paste strength cured for 30 days under URL and UR conditions all increase to different extent and the strength is slightly affected very low,especially for the paste containing25%fly *** XRD results,URL and UR dispositions do not influence the hydration product kinds but the amount,especially Ca（OH）2 and *** experiments can decrease the diffraction peak of Ca（OH）2 sharply,and increase that of CaCO3 rapidly,especially under only ultraviolet *** TG-DTA and SEM results,with the increase of curing age,the content of Ca（OH）2 decreases and that of CaCO3 *** Ca（OH）2 content of paste under continuous UR curing for 30 days is less than that under URL curing for 30days,which indicates that UR has more negative effects on the pastes than URL.

关键词： paste fly ash deterioration characteristics ultraviolet radiation low temperature

A New Strategy to Design Highly Sustainable Sulfide Photocatalyst for Hydrogen Production

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2017年第2期35卷 148-152页

作者： lu wang Wenzhong wang State Key Laboratory of High Performance Ceramics and SuperJ3ne Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China

A new strategy has been developed to design sulfides photocatalysts with superior stability without any noble metal deposition. The as-designed AgsSnS6 showed capability of steadily evolving hydrogen for at least 400 ... 详细信息

关键词： photocatalysis AgsSnS6 H2 production highly sustainable turnover number

PREPARATION AND CHARACTERIZATION OF INCluSION COMPLEXES OF TWO-ARM LINEAR AND FOUR-ARM STAR-SHAPED POLY(ε-CAPROLACTONE)S WITHα-CYCLODEXTRIN

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 Journal of Polymer Science 2006年第3期24卷 245-252页

作者： lu wang Jing-liang wang 董常明 Department of Polymer Science ＆ Engineering School of Chemistry and Chemical Technology Shanghai Jiao Tong University Shanghai 200240 China

Both four-ann star-shaped poly（ε-caprolactone）（4sPCL） and two-ann linear PCL （2LPCL） were synthesized and their inclusion complexation with α-cyclodextrin （α-CD） were studied. The inclusion complexes （ICs） formed between the PCL polymers and α-CD were characterized by ^1H-NMR, DSC, TGA, WAXD, and FT-1R, respectively. Both branch ann number and molecular weight of the PCL polymers have apparent effect on the stoichiometry （CL：CD, mol：mol） of these ICs. All these analytical results indicate that the branch arms of the PCL polymers are incorporated into the hydrophobic α-CD cavities and their original crystalline properties are completely suppressed. Moreover, the inclusion complexation between two-ann linear or four-ann star-shaped PCL polymers and α-CD not only enhances the thermal stability of the guest PCL polymers but also improves that of α-CD.

关键词： Inclusion complexes Linear poly(ε-caprolactone) Star-shaped poly(ε-caprolactone) Thermal stability.