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Self-assembled sialyllactosyl probes with aggregation-enhanced properties for ratiometric detection and blocking of influenza viruses

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Science Bulletin 2019年第24期64卷 1902-1909页

作者： Wei-Tao Dou Zhao-Yang Qin Jun Li Dong-Ming Zhou xiao-peng he Key Laboratory for Advanced Materials Feringa Nobel Prize Scientist Joint Research CenterSchool of Chernistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Vaccine Research Center Key Laboratory of Molecular Virology&ImmunologyInstitut Pasteur of ShanghaiChinese Acadermy of SciencesShanghai 200031China

Infection and dissemination of influenza viruses(IVs) causes serious health concerns ***, effective tools for the accurate detection and blocking of IVs remain elusive. here, we develop a new sialyllactosyl probe with self-assembled core-shell structure for the ratiometric detection and blocking of IVs. N,N'-diaryl-dihydrodibenzo[a,c]phenazines were used to form the core structure by hydrophobic assembly in an aqueous solution with an aggregation-enhanced blue fluorescence ***, dicyanomethylene-4 H-pyran-based sialyllactosides were used for self-assembly with the core structure, producing the sialyllactosyl probe that emits a red fluorescence due to Forster resonance energy transfer. The probe developed has been proven to be available for(1) the fluorescence ratiometric detection of IVs through selective interaction with the sialyllactosyl-binding proteins on the virus surface,and(2) effectively blocking the invasion of human-infecting IVs towards host cells as accentuated by the sialyllactosides on the surface of the probes.

关键词： Vibration-induced emission Influenza viruses Ratiometric Fluorescence Glycoprobe

去乙酰毛花苷联合胺碘酮治疗急性心力衰竭合并快速型心律失常患者的疗效分析

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中国合理用药探索 2024年第2期21卷 76-81页

作者：党磊韩景怡彭小荷张芳芳南阳市中心医院心血管内科南阳473000 郑州大学郑州450000

目的:探讨去乙酰毛花苷联合胺碘酮治疗急性心力衰竭(AHF)合并快速型心律失常的有效性和安全性,以及对患者心功能、血管内皮功能的影响。方法:选取2020年1月~2023年1月期间某院收治的150例AHF合并快速型心律失常患者作为研究对象,采用随... 详细信息

目的:探讨去乙酰毛花苷联合胺碘酮治疗急性心力衰竭(AHF)合并快速型心律失常的有效性和安全性,以及对患者心功能、血管内皮功能的影响。方法:选取2020年1月~2023年1月期间某院收治的150例AHF合并快速型心律失常患者作为研究对象,采用随机数字表法分为去乙酰毛花苷组和联合组,每组75例。所有患者入院后根据病情给予吸氧、强心、利尿、心电监护等基础治疗,去乙酰毛花苷组患者静脉推注去乙酰毛花苷注射液,联合组患者在去乙酰毛花苷组治疗基础上加用盐酸胺碘酮注射液,两组均治疗48h。比较两组临床疗效、心功能指标[左室射血分数(LVEF)、左室舒张末期内径(LVEDD)、左室后壁厚度(LVPWT)]、血管内皮功能指标[内皮素-1(ET-1)、肱动脉血流介导的血管舒张功能(FMD)、血管性假血友病因子(vWF)]及不良反应发生情况。结果:治疗后,联合组治疗总有效率(96.00%)高于去乙酰毛花苷组(86.67%,P0.05)。结论:去乙酰毛花苷联合胺碘酮治疗AHF合并快速型心律失常临床疗效确切,可有效促进患者心功能恢复,改善血管内皮功能障碍,且未增加不良反应发生风险。

关键词：去乙酰毛花苷胺碘酮急性心力衰竭快速型心律失常心功能血管内皮功能

Identification and Genetic Analysis of Fertility Restoration Ability in Dongxiang Wild Rice (Oryza rufipogon)

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Rice science 2008年第1期15卷 21-28页

作者： CheN xiao-rong YANG Kong-song FU Jun-ru ZHU Chang-lan peng xiao-song he xiao-peng he Hao-hua College of Agronomy Jiangxi Agricultural University~Key Laboratory of Crop Physiology Ecology Genetic and Breeding JiangxiProvince Nanchang 330045 China

Two populations of Dongxiang wild rice （Oryza rufipogon）, Shuitaoshu and Dongtangshang, were crossed with five male sterile rice lines with different cytoplasmic backgrounds （B06S, Zhenshan 97A, Xieqingzao A, Zhong 9A, and Yuetai A）, and the seed setting rate of the F1 was used to judge the fertility restoration ability in the Dongxiang wild rice. With P1, F1, P2, and F2 populations as materials, the Akaike＇s Information Criterion （AIC） was used to identify the major genes affecting quantitative traits, and when the major genes existed, the genetic effects of the major gene and the polygene and their genetic variance were estimated through segregation analysis. The seed setting rates of the F1 generation varied from 45.98% to 76.57%, suggesting that the Dongxiang wild rice had the fertility restoration ability. One major gene plus polygene mixed inheritance model was the most fitted genetic model for this trait in all the F2 populations. The heritability values of the major genes varied from 56.63% to 88.29% and those of the polygenes from 2.74% to 30.97%, and the total heritability values were from 63.17% to 94.01%. The major gene inheritance of the combination Zhong 9A/Dongtangshang was controlled by the additive effect without dominant effect, and the other nine combinatfons were by the completely dominant inheritance.

关键词： Dongxiang wild rice fertility restoration identification genetic effect Oryza rufipogon

Differences in and factors controlling organic matter enrichment in the Ziliujing Formation shale in the Sichuan Basin

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Petroleum Science 2024年第1期21卷 77-86页

作者： peng Li Zhong-Bao Liu he Bi Tao Jiang Rui-Kang Bian peng-Wei Wang xiao-Yu Shang State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Efficient Development Beijing102206China Key Laboratory of Shale Oil/Gas Exploration and Production Technology SINOPECBeijing102206China Petroleum Exploration and Production Research Institute SINOPECBeijing102206China Research Institute of Petroleum Exploration and Development PetroChinaBeijing100083China Chinese Academy of Geological Sciences Beijing100037China No.4 Oil Production Plant in Daqing Oilfield Co Ltd. Daqing163511HeilongjiangChina

Lacustrine shale oil and gas are important fields for unconventional exploration and development in China,and organic-rich shale deposition lays down the critical foundation for hydrocarbon *** are two sets of shale,the Dongyuemiao and Da’anzhai Members,in the Ziliujing Formation in the Sichuan *** identify the differential enrichment characteristics of organic matter and clarify its controlling factors,geochemical analyses of organic and inorganic geochemical analyses were *** results showed that the total organic carbon content of the Dongyuemiao shale(1.36%)is slightly higher than that of the Da’anzhai shale(0.95%).The enrichment of organic matter in the two shales resulted from the comprehensive controls of paleoproductivity,paleoenvironment,and terrigenous input,but different factors have different *** addition,driven by climate,the change in the sulfate concentration in the bottom water further led to the different intensities of bacterial sulfate reduction in early *** made a great difference regarding organic matter accumulation in the two *** general,climate may have played a dominant role in organic matter enrichment in the two sets of shale.

关键词： Lacustrine shale Ziliujing Formation Sichuan Basin Enrichment mechanism of organic matter

Dual enzyme activated fluorescein based fluorescent probe

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Frontiers of Chemical Science and Engineering 2020年第1期14卷 117-121页

作者： Maria L.Odyniec Jordan E.Gardiner Adam C.Sedgwick xiao-peng he Steven D.Bull Tony D.James Department of Chemistry University of BathBathBA27AYUK Department of Chemistry University of Texas at AustinAustinTX 78712-1224USA Key Laboratory for Advanced Materials&Feringa Nobel Prize Scientist Joint Research Center East China University of Science and TechnologyShanghai 200237China

A simple dual analyte fluorescein-based probe(PF3-Glc)was synthesised containingβ-glucosidase(β-glc)and hydrogen peroxide(H2O2)trigger *** presence ofβ-glc,resulted in fragmentation of the parent molecule releasing glucose and the slightly fluorescent mono-boronate fluorescein(PF3).Subsequently,in the presence of glucose oxidase(GOx),the released glucose was catalytically converted to D-glucono-δ-lactone,which produced H2O2 as a *** GOx-produced H2O2,resulted in classic H2O2-mediated boronate oxidation and the release of the highly emissive fluorophore,*** unique cascade reaction lead to an 80-fold increase in fluorescence intensity.

关键词： chemosensors dual-activation GOx fluorescence β-glucosidase molecular logic

Working condition recognition of sucker rod pumping system based on 4-segment time-frequency signature matrix and deep learning

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Petroleum Science 2024年第1期21卷 641-653页

作者： Yun-peng he Hai-Bo Cheng peng Zeng Chuan-Zhi Zang Qing-Wei Dong Guang-Xi Wan xiao-Ting Dong State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016LiaoningChina Key Laboratory of Networked Control Systems Chinese Academy of SciencesShenyang 110016LiaoningChina Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang 110169LiaoningChina University of Chinese Academy of Sciences Beijing100049China School of Artifcial Intelligence Shenyang University of TechnologyShenyang 110870LiaoningChina

High-precision and real-time diagnosis of sucker rod pumping system(SRPS)is important for quickly mastering oil well *** learning-based method for classifying the dynamometer card(DC)of oil wells is an efficient diagnosis ***,the input of the DC as a two-dimensional image into the deep learning framework suffers from low feature utilization and high computational ***,different SRPSs in an oil field have various system parameters,and the same SRPS generates different DCs at different ***,there is heterogeneity in field data,which can dramatically impair the diagnostic *** solve the above problems,a working condition recognition method based on 4-segment time-frequency signature matrix(4S-TFSM)and deep learning is presented in this ***,the 4-segment time-frequency signature(4S-TFS)method that can reduce the computing power requirements is proposed for feature extraction of DC ***,the 4S-TFSM is constructed by relative normalization and matrix calculation to synthesize the features of multiple data and solve the problem of data ***,a convolutional neural network(CNN),one of the deep learning frameworks,is used to determine the functioning conditions based on the *** on field data verify that the proposed diagnostic method based on 4S-TFSM and CNN(4S-TFSM-CNN)can significantly improve the accuracy of working condition recognition with lower computational *** the best of our knowledge,this is the first work to discuss the effect of data heterogeneity on the working condition recognition performance of SRPS.

关键词： Sucker-rod pumping system Dynamometer card Working condition recognition Deep learning Time-frequency signature Time-frequency signature matrix

Fluorescent probes and functional materials for biomedical applications

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Frontiers of Chemical Science and Engineering 2022年第10期16卷 1425-1437页

作者： Xi-Le Hu Hui-Qi Gan Fan-De Meng Hai-Hao Han De-Tai Shi Shu Zhang Lei Zou xiao-peng he Tony D.James Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Department of Chemistry University of BathBath BA27AYUK Liver Cancer Institute Zhongshan Hospitaland Key Laboratory of Carcinogenesis and Cancer Invasion(Ministry of Education)Fudan UniversityShanghai 200032China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China School of Materials Science and Engineering Jingdezhen Ceramic InstituteJingdezhen 333403China

Due to their simplicity in preparation,sensitivity and selectivity,fluorescent probes have become the analytical tool of choice in a wide range of research and industrial fields,facilitating the rapid detection of chemical substances of interest as well as the study of important physiological and pathological processes at the cellular *** addition,many long-wavelength fluorescent probes developed have also proven applicable for in vivo biomedical applications including fluorescenceguided disease diagnosis and theranostics(e.g.,fluorogenic prodrugs).Impressive progresses have been made in the development of sensing agents and materials for the detection of ions,organic small molecules,and biomacromolecules including enzymes,DNAs/RNAs,lipids,and carbohydrates that play crucial roles in biological and disease-relevant ***,we highlight examples of fluorescent probes and functional materials for biological applications selected from the special issues“Fluorescent Probes”and“Molecular Sensors and Logic Gates”recently published in this journal,offering insights into the future development of powerful fluorescence-based chemical tools for basic biological studies and clinical translation.

关键词： fluorescent probes imaging cell biomedicine biomolecules

Neomicrocoleus ***.(Microcoleaceae,Oscillatoriales),a novel cyanobacterial genus from benthic mats in a water channel

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Journal of Oceanology and Limnology 2024年第1期42卷 263-276页

作者： Ruozhen GENG Zhongshi he Kaihui GAO peng xiao he ZHANG Si CheN Hua LI Gongliang YU Renhui LI College of Life and Environmental Sciences Wenzhou UniversityWenzhou 325035China Key Laboratory of Algal Biology Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China University of Chinese Academy of Sciences Beijing 100049China Hubei Institution of Land Surveying and Mapping Wuhan 430072China

A new filamentous cyanobacterial strain(CHAB 4127)was successfully isolated from the algal mat during the field investigation of the open channel from Luanhe River to Tianjin,*** polyphasic approach combining morphological,ultrastructural,ecological,and molecular features was used to characterize this studied *** strain is morphologically similar to the Microcoleus-like cyanobacterial taxa under light microscopy,and the radial arrangement of thylakoids is also consistent with that of Microcoleus-like *** phylogenetic position of CHAB 4127 based on 16S rRNA gene sequences,is shown to be clearly clustered into an independent clade with the newly established genus *** maximum similarity of 16S r RNA gene of the studied strain with other existing related cyanobacterial taxa is 93.97%,and the ITS secondary structures is also obviously different from other members of *** on all the above evidence,we proposed the establishment of this novel cyanobacterial genus as Neomicrocoleus,with its type species,Neomicrocoleus tianjinensis.

关键词： Neomicrocoleus tianjinensis morphology 16S rRNA taxonomy polyphasic approach

A seismic elastic moduli module for the measurements of low-frequency wave dispersion and attenuation of fluid-saturated rocks under different pressures

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Petroleum Science 2024年第1期21卷 162-181页

作者： Yan-xiao he Shang-Xu Wang Gen-Yang Tang Chao Sun Hong-Bing Li San-Yi Yuan Xian Wei Li-Deng Gan xiao-Feng Dai Qiang Ge peng-peng Wei Hui-Qing Zhang National Key Laboratory of Petroleum Resources and Engineering CNPC Key Lab of Geophysical ExplorationCollege of GeophysicsChina University of Petroleum(Beijing)Beijing102249China School of Resources and Geosciences China University of Mining and TechnologyXuzhou221116JiangsuChina Research Institute of Petroleum Exploration and Development CNPCBeijing100083China Beijing Vocational College of Labour and Social Security Beijing100029China PetroChina Dagang Oilfield Exploration and Development Research Institute CNPCTianjin300280China

Knowledge about the seismic elastic modulus dispersion,and associated attenuation,in fluid-saturated rocks is essential for better interpretation of seismic observations taken as part of hydrocarbon identification and time-lapse seismic surveillance of both conventional and unconventional reservoir and overburden performances.A Seismic Elastic Moduli Module has been developed,based on the forced-oscillations method,to experimentally investigate the frequency dependence of Young's modulus and Poisson's ratio,as well as the inferred attenuation,of cylindrical samples under different confining pressure *** with three standard samples showed that the measured elastic moduli were consistent with the published data,indicating that the new apparatus can operate reliably over a wide frequency range of f∈[1-2000,10^(6)]*** Young's modulus and Poisson's ratio of the shale and the tight sandstone samples were measured under axial stress oscillations to assess the frequency-and pressure-dependent *** dry condition,both samples appear to be nearly frequency independent,with weak pressure dependence for the shale and significant pressure dependence for the *** particular,it was found that the tight sandstone with complex pore microstructure exhibited apparent dispersion and attenuation under brine or glycerin saturation conditions,the levels of which were strongly influenced by the increased effective *** addition,the measured Young's moduli results were compared with the theoretical predictions from a scaled poroelastic model with a reasonably good agreement,revealing that the combined fluid flow mechanisms at both mesoscopic and microscopic scales possibly responsible for the measured dispersion.

关键词： Low-frequency measurements Dispersion and attenuation Rock physics Fluid flow