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Molecular insights on Ca^(2+)/Na+separation via graphene-based nanopores:The role of electrostatic interactions to ionic dehydration

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Chinese Journal of Chemical Engineering 2022年第1期35卷 220-229页

作者： yumeng Zhang Yingying Zhang Xueling Pan Yao Qin Jiawei Deng Shanshan Wang Qingwei Gao Yudan zhu zhuhong Yang Xiaohua Lu College of Chemical Engineering State Key Laboratory of Materials-oriented Chemical EngineeringNanjing Tech UniversityNanjing 211816China College of Chemical Engineering Nanjing Forestry UniversityNanjing 210037China School of Chemical Engineering State Key Laboratory of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

Ca^(2+)/Na+separation is a common problem in industrial applications,biological and medical ***,Ca^(2+)and Na+have similar ionic radii and hydration radii,thus Ca^(2+)/Na+separation is *** by biological channels,group modification is one of the effective methods to improve the separation *** this work,molecular dynamics simulations were performed to investigate the effects of different functional groups(COO,NH3+)on the separation performance of Ca^(2+)and Na+through graphene nanopores under an electric *** pristine graphene nanopore was used for *** showed that three types of nanopores preferred Ca^(2+)to Na+,and Ca^(2+)/Na+selectivity followed the order of GE-COO(4.06)>GE(1.85)>GE-NH3+(1.63).Detailed analysis of ionic hydration microstructure shows that different nanopores result in different hydration factors for the second hydration layer of Ca^(2+)and the first layer of Na+.Such different hydration factors corresponding to the dehydration ability can effectively evaluate the separation *** addition,the breaking of hydrogen bonds between water molecules due to electrostatic effects can directly affect the dehydration ***,the electrostatic effect generated by group modification will affect the ionic hydration microstructure,thus reflecting the differences in dehydration *** in turn affects the permeable and separation performance of *** results of this work provide perceptive guidelines for the application of graphene-based membranes in ion separation.

关键词： Separation Microstructure Molecular simulation Modified graphene nanopores Metal-ions Nanoconfinement

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An ethylene-induced NAC transcription factor acts as a multiple abiotic stress responsor in conifer

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Horticulture Research 2023年第8期10卷 158-169页

作者： Fangxu Han Peiyi Wang Xi Chen Huanhuan Zhao Qianya zhu Yitong Song yumeng Nie Yue Li Meina Guo Shihui Niu National Engineering Research Center of Tree Breeding and Ecological Restoration College of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083China

The proper response to various abiotic stresses is essential for plants’survival to overcome their sessile nature,especially for perennial trees with very long-life ***,in conifers,the molecular mechanisms that coordinate multiple abiotic stress responses remain ***,the transcriptome response to various abiotic stresses like salt,cold,drought,heat shock and osmotic were systematically detected in Pinus tabuliformis(***)*** found that four transcription factors were commonly induced by all tested stress treatments,while PtNAC3 and PtZFP30 were highly up-regulated and ***,the exogenous hormone treatment assays and the content of the endogenous hormone indicates that the upregulation of PtNAC3 and PtZFP30 are mediated by ***-course assay showed that the treatment by ethylene immediate precursor,1-aminocyclopropane-1-carboxylic acid(ACC),activated the expression of PtNAC3 and PtZFP30 within 8 *** further confirm that the PtNAC3 can directly bind to the PtZFP30 promoter region and form a *** of PtNAC3 enhanced unified abiotic stress tolerance without growth penalty in transgenic Arabidopsis and promoted reproductive success under abiotic stress by shortening the lifespan,suggesting it has great potential as a biological tool applied to plant breeding for abiotic stress *** study provides novel insights into the hub nodes of the abiotic stresses response network as well as the environmental adaptation mechanism in conifers,and provides a potential biofortification tool to enhance plant unified abiotic stress tolerance.

关键词： stress endogenous unified

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循证社会干预指南与标准系列研究之三:基于循证理念推动标准科学实施

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医学新知 2024年第4期34卷 438-447页

作者：朱雨萌盖琼艳陈昊曾宪涛史楠楠高翔宇拜争刚 Campbell中国联盟南京理工大学循证社会科学与健康研究中心南京210094 南京理工大学公共事务学院南京210094 南京大学医学院附属鼓楼医院泌尿外科南京210008 南京中医药大学针灸推拿学院&养生康复学院南京210023 武汉大学中南医院循证与转化医学中心武汉430071 中国中医科学院中医临床基础医学研究所北京100700 新疆维吾尔自治区第四人民医院医务处乌鲁木齐830017 不详

我国当前已经制定了大量的标准,但标准的总体使用率不高,加强标准落地应用是一个亟待解决的问题。基于循证理念实施标准逐渐被广泛接受,本文在实施科学理论的指导下,具体介绍了我国标准实施的现状,对英国国家卫生与临床优化研究所(NICE... 详细信息

我国当前已经制定了大量的标准,但标准的总体使用率不高,加强标准落地应用是一个亟待解决的问题。基于循证理念实施标准逐渐被广泛接受,本文在实施科学理论的指导下,具体介绍了我国标准实施的现状,对英国国家卫生与临床优化研究所(NICE)、国际标准化组织(ISO)、加州循证儿童福利信息交换所(CEBC)等国际经验进行分析,并讨论了基于循证理念推动标准科学实施的具体步骤和方法。基于循证理念推动标准科学实施分为“探索-准备-实施-维持”四个阶段,并细化为不同步骤和方法。要进一步推动标准科学应用,还需成立标准执行委员会,采取自愿实施与政府强制并存的方式,并建立标准实施评价指标体系。

关键词：循证理念标准实施实施科学

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Scalable Rhodaelectro-Catalyzed Expedient Access to Seven-Membered Azepino[3,2,1-hi]indoles via [5+2] C-H/N-H Annulation

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CCS Chemistry 2022年第6期4卷 1858-1870页

作者： yumeng Yuan Jinlan zhu Zhongyuan Yang Shao-Fei Ni Qiufeng Huang Lutz Ackermann Fujian Key Laboratory of Polymer Science Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical EngineeringCollege of Chemistry and Materials ScienceFujian Normal UniversityFuzhouFujian 350007 Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou UniversityShantouGuangdong 515063 Institut Für Organische Und Biomolekulare Chemie Wohler Research Institute for Sustainable ChemsitryGeorg-August-Universitat Gottingen37077 Gottingen

We report the establishment of a rhodaelectrocatalyzed[5+2]N-H/C-H oxidative annulation of alkynes by 7-arylindoles,enabling the synthesis of seven-membered azepino[3,2,1-hi]indoles using electricity as the sole *** reaction could be scaled up to gram-scale by *** key rhodium(Ⅲ)intermediates were isolated and fully *** analysis,X-ray photoelectron spectroscopy studies,and density functional theory calculations are suggestive of a rhodium(Ⅲ-Ⅳ-Ⅱ-Ⅲ)manifold.

关键词： C-H activation electrocatalysis rhodium annulation indole

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In-depth understanding of ionic liquid assisted perovskite film formation mechanism for two-step perovskite photovoltaics

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Journal of Energy Chemistry 2022年第10期31卷 599-606,I0015页

作者： Fei Wang Patrick Wai-Keung Fong Zhiwei Ren Hai-Lun Xia Kang Zhou Kai Wang Jiajie zhu Xiaoxi Huang Xiao-Yuan Liu Hao Wang yumeng Shi Haoran Lin Quanyao zhu Gang Li Hanlin Hu Hoffman Institute of Advanced Materials Shenzhen PolytechnicShenzhen 518055GuangdongChina Department of Electronic and Information Engineering Research Institute for Smart Energy(RISE)The Hong Kong Polytechnic UniversityHong Kong 999077China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 43007HubeiChina International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060GuangdongChina The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057GuangdongChina Institute of Flexible Electronics Northwestern Polytechnical UniversityXi’an 710072ShannxiChina School of Physics Science and Engineering Tongji UniversityShanghai 200092China

Ionic liquids(ILs)have been widely applied in the one-step fabrication of perovskite with noticeable enhancement in the device ***,in-depth mechanism of ionic-liquid-assisted perovskite film formation is not well understood for also important two-step perovskite fabrication method,with better control of crystallization *** this work,we introduced ionic liquid methylammonium formate(MAFa)into organic salt to produce perovskite film via a two-step *** investigations on the influence of MAFa on the perovskite thin film formation mechanism were *** liquid is shown to assist lowering the perovskite formation enthalpy upon the density functional theory(DFT)calculation,leading to an accelerated crystallization process evidenced by in-situ UV-Vis absorption measurement.A gradient up-down distribution of ionic liquid has been confirmed by timeof-flight ***,besides the surface passivation,we found the HCOO-can diffuse into the perovskite crystals to fill up the halide vacancies,resulting in significant reduction of trap *** perovskite films with significantly larger grains and less defect density were prepared with the help of MAFa IL,and the corresponding device efficiency over 23%was obtained by two-step process with remarkably improved *** research work provides an efficient strategy to tune the morphology and opto-electronic properties of perovskite materials via ionic-liquid-assisted two-step fabrication method,which is beneficial for upscaling and application of perovskite photovoltaics.

关键词： Halide vacancies Perovskite solar cells Two-step method Ionic liquid

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Determination of conifer age biomarker DAL1 interactome using Y2H-seq

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Forestry Research 2021年第1期1卷 106-117页

作者： Xi Chen Qianya zhu yumeng Nie Fangxu Han Yue Li Harry XWu Shihui Niu Beijing Advanced Innovation Center for Tree Breeding by Molecular Design National Engineering Laboratory for Tree BreedingCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083PR China Umea Plant Science Centre Department of Forest Genetics and Plant PhysiologySwedish University of Agricultural SciencesLinnaeus vag 6SE-90183UmeaSweden

Age is a sophisticated physiological signal that ensures the sequence of different developmental stages in *** regulation of ageing pathways appears to differ between gymnosperms and *** previously identified DAL1 as a conserved conifer age biomarker that plays a crucial role in the transition from vegetative to reproductive life-history phases in ***,elucidating the specific interaction events related to DAL1 is key to understanding how age drives conifer ***-scale yeast two-hybrid(Y2H)analysis followed by next-generation high-throughput sequencing(Y2H-seq)allowed us to identify 135 PtDAL1 interacting proteins in Pinus *** study found that PtDAL1 interacting proteins showed an ageing-related module,with sophisticated interacting networks composed of transcription factors(TFs),transcriptional regulators(TRs),and *** interacting proteins are produced in response to a variety of phytohormones and environmental signals,and are likely involved in wood formation,needle development,oleoresin terpenoids biosynthesis,and reproductive *** this study,we propose a novel regulation model of conifer ageing pathways whereby PtDAL1 coordinates different environmental stimuli and interacts with corresponding proteins to regulate appropriate development.

关键词： development likely DAL1

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Ionic liquid engineering enabled in-plane orientated 1D perovskite nanorods for efficient mixed-dimensional perovskite photovoltaics

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InfoMat 2023年第8期5卷 81-93页

作者： Fei Wang Dawei Duan Kang Zhou YZBXue Xiao Liang Xianfang Zhou Chuangye Ge Chao Zhou Jin Xiang Jiajie zhu Quanyao zhu Haoran Lin yumeng Shi Yonghua Chen Gang Li Hanlin Hu Hoffmann Institute of Advanced Materials Shenzhen PolytechnicShenzhenthe People's Republic of China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhanthe People's Republic of China Oxford Instruments Technology(Shanghai)Co.Ltd. Shanghaithe People's Republic of China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhenthe People's Republic of China School of Physics Science and Engineering Tongji UniversityShanghaithe People's Republic of China Key Laboratory of Flexible Electronics(KLoFE)&Institute of Advanced Materials(IAM) School of Flexible Electronics(Future Technologies)Nanjing Tech University(NanjingTech)Nanjingthe People's Republic of China Department of Electronic and Information Engineering Research Institute for Smart Energy(RISE)The Hong Kong Polytechnic UniversityKowloonHong Kongthe People's Republic of China

Mixed-dimensional engineering of perovskite material has been demonstrated as a facile and promising strategy to improve both photovoltaic performance and long-term stability of perovskite solar cells(PSCs).In this study,we report an in-plane preferred orientation of 1D perovskite induced by an ionic liquid(IL)of 1-(3-cyanopropyl)-3-methylimidazolium chloride(CPMIMCl)for the first time via sequential deposition approach,leading to a mixed dimensional perovskite thin *** generated one-dimensional(1D)CPMIMPbI3 with in-plane orientation resides at the grain boundaries of three-dimensional(3D)perovskite can be appreciably observed from the morphology level,leading to creation of high-quality films with large grain size with more efficient defect ***,the dispersion of IL in the bulk phase of perovskite material allows for the formation of 1D perovskite for multiple level passivation to inhibit non-radiative recombination and optimize carrier *** IL engineering strategy not only yields a mixed-dimensional perovskite heterostructure with in-plane orientation 1D perovskite nano-rods but also significantly improves the opto-electronic property with suppressed trap *** a result,the CPMIMCl-treated PSCs show an enhanced photovoltaic performance with a champion power conversion efficiency(PCE)up to 24.13%.More importantly,benefiting from the hydrophobicity of formed 1D perovskite and defects suppression,the corresponding PSC demonstrates an excellent longterm stability and maintain 97.1%of its pristine PCE at 25C under 50%RH condition over 1000 *** research provides an innovative perspective for employing the low dimensional engineering to optimize the performance and stability of photovoltaic devices.

关键词： 1D/3D perovskite ionic liquid perovskite solar cells stability

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西瓜深绿色果皮底色基因初步定位及候选基因预测

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高师理科学刊 2024年第6期44卷 62-67,80页

作者：安伯函张艳玲郭宇袁成志朱宇萌刘秀杰刘继秀高越高美玲齐齐哈尔大学生命科学与农林学院黑龙江齐齐哈尔161006 齐齐哈尔大学黑龙江省抗性基因工程与寒地生物多样性保护重点实验室黑龙江齐齐哈尔161006 齐齐哈尔市农业技术推广中心黑龙江齐齐哈尔161006

果皮颜色是西瓜重要的外观性状,国内外学者研究发现,在不同遗传背景下,其调控基因不同.以深绿和浅绿果皮底色小果型西瓜品系K2,L1为母本和父本构建F_(2)遗传群体,对所构建遗传群体开展了果皮底色的基因初步定位.在实验室前期将高密度遗... 详细信息

果皮颜色是西瓜重要的外观性状,国内外学者研究发现,在不同遗传背景下,其调控基因不同.以深绿和浅绿果皮底色小果型西瓜品系K2,L1为母本和父本构建F_(2)遗传群体,对所构建遗传群体开展了果皮底色的基因初步定位.在实验室前期将高密度遗传图谱定位果皮底色基因FRC在八号染色体2.01 Mb的基础上,将FRC基因定位到了83.5 kb区段内(27 911 305~27 994 761bp).根据西瓜基因组“97103V2”的注释信息,发现在目标区段内包含15个已注释的基因,初步推测Cla97C08G161570为西瓜果皮底色候选基因,编码2-植基-1,4-萘醌甲基转移酶,该酶参与叶绿醌的生物合成,研究结果为西瓜果皮底色育种和精细定位果皮底色基因打下了基础.

关键词：西瓜果皮底色基因定位候选基因

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Soil microbial communities as potential regulators of N2O sources in highly acidic soils

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Soil Ecology Letters 2023年第4期5卷 81-87页

作者： Junhui Yin Huaihai Chen Pengpeng Duan Kun zhu Naihui Li Yan Ma yumeng Xu Jingheng Guo Rui Liu Qing Chen Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China State Key Laboratory of Biocontrol School of EcologySun Yat-sen UniversityGuangzhou 510006China Key Laboratory of Agro–Ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China College of Land Science and Technology China Agricultural UniversityBeijing 100193China Department of Horticulture Northeast Agricultural UniversityHarbin 150030China

●Soil pH was a key driver of N2O emission and sources in acidic soils.●N2O emission was significantly positively associated with the ratio of ITS to 16S.●N2O was significantly correlated with bacterial and fungal community composition.●Fungi contributed to N2O in highly acidic tea plantations and vegetable *** soil is a main source of global nitrous oxide(N2O)***,the mechanism behind the high N2O emissions from acidic soils remains a knowledge *** objective of this microcosm incubation study was to pin-point the microbial mechanisms involved in N2O production processes in acidic *** that purpose,the isotopic signatures and microbial community structure and composition of four soil samples were *** results showed that highly acid soils(pH=3.51)emitted 89 times more N2O than alkaline soils(pH=7.95)under the same nitrogen(N)*** denitrification caused high N2O emissions in acidic *** to 16S abundance ratio was positively correlated with cumulative N2O emissions from the tested *** highly acid soils(pH<4.5)showed greater fungal nirK gene abundance and lower abundance of AOA-amoA,AOB-amoA,nirK,nosZ I and nosZ II *** unclassified Aspergillaceae fungi(63.65%)dominated the highly acidic soils and was the most strongly correlated genus with N2O *** findings highlight that soil microbial community structures,denitrifying fungi in particular,shaped by low pH(pH<4.5)lead to high N2O emissions from acidic soils.

关键词： nitrous oxide ITS 16S ratio fungal denitrification soil pH vegetable field tea plantation

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Dual-ratiometric magnetic resonance tunable nanoprobe with acidic-microenvironment-responsive property to enhance the visualization of early tumor pathological changes

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Nano Research 2023年第7期16卷 10034-10046页

作者： Rong Cao Ning Tang Yi zhu An Chen yumeng Li Renbin Ge Yuan Li Zhongyi Huang Jiajing Guo Jiali Deng Hongwei Lu Ziwei Lu Helen Forgham Thomas PDavis Ruirui Qiao Zhongling Wang Department of Radiology Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China School of food science Nanjing Xiaozhuang UniversityNanjing 211171China School of Health Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Neurology School of MedicineNew York UniversityNew York 10016USA Department of Biomedical Engineering College of EngineeringShantou UniversityShantou 515063China Department of Radiology The First Affiliated Hospital of Soochow UniversitySuzhou 215006China Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbane QLD 4072Australia

The development of microenvironment-responsive nanoprobes has shown great promise for use in magnetic resonance imaging(MRI),with the advantage of significantly improved specificity and good ***,the clinical application of responsive probes is hampered by a lack of biological sensitivity for early molecular diagnostics and visualizing microenvionment of metabolism reprogramming in tumor ***,we report on a dual-ratiometric magnetic resonance tunable(DMRT)nanoprobe designed by crosslinking different ratios of transferrin chelating gadolinium and superparamagnetic nanoparticles,complexed to a pH responsive biocompatible *** dually activatable nanoprobe enables pH-dependent tumor microenvironment visualization,providing exceptional quantitative pathophysiological information in vitro and in *** used in combination with dual-contrast enhancement triple subtraction imaging technique(DETSI),this smart nanoprobe guarantees the diagnosis of early-stage *** envisage that this novel integrated nanoplatform will provide a new paradigm for the clinical translation of robust DMRT nanoprobes for early disease detection and staging,as well as microenvironment visualization and disease progression monitoring.

关键词： ratiometric nanoprobe dually activatable microenvironment visualization early diagnosis pathological changes

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