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Heterobimetallic lanthanide tetrahedral cages:Synthesis,design and application for potential multimodal imaging contrast agent

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Journal of Rare Earths 2024年第2期42卷 278-285,I0002页

作者： Yongxiu li Feng Guo Siwei Wei Duofu li Jun Zhang Kai Xu dongping li Department of Chemistry Nanchang UniversityNanchang330031China Key Laboratory of Functional Molecule Design and Interface Process Anhui Jianzhu UniversityHefei230601China Department of Otolaryngology Head and Neck SurgeryThe Second Affiliated Hospital of Nanchang UniversityNanchang330006China

The construction and functionalization of lanthanide-organic cages have been a research hotspot in coordination *** from the unique luminescent and magnetic properties of lanthanide ions,the potential applications of lanthanide-organic cages in biological imaging applications are promising,but only a few corresponding explorations have been *** rein,we introduced a series of lanthanide tetrahedral cages,(Eu_(n)Gd_(4-n)L_(4))(sol)_8(n=0,1,2,3 and 4,where L=(4,4',4"-tris(4,4,4-trifluoro-1,3-dioxobutyl)-triphenylamine,and sol=dimethyl sulfoxide and methanol),with potential applications in biological *** the good luminescent and magnetic properties of Eu^(3+) and Gd^(3+) ions,Eu_(4)L_(4) and Gd_(4)L_(4) complexes show a high luminescence quantum yield of 29% in DMSO and large longitudinal relaxivity(r_(1)) of 11.4(mmol/L)^(-1)/s at 0.5 T in water containing 1 vol% DMSO,*** heterobimetallic Eu-Gd complexes achieve a dual imaging mode by combining luminescent and magnetic centers in one *** the Gd:Eu ratio increases from 1:3 to 3:1,the r_(1) values increases from 5.33 to 8.64(mmoI/L)^(-1)/s,higher than that of commercial contrast agent Gd-DOTA(3.23(mmol/L)^(-1)/s).Owing to their low toxicity and good cell imaging ability toward ECA 109 cells,the selfassembled Eu-Gd heterobimetallic tetrahedral cages could be potential candidates for the multimodal imaging contrast agent.

关键词： Lanthanide organic cage Luminescence Cell imaging Contrast agents Rare earths

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Smart horticulture as an emerging interdisciplinary field combining novel solutions:Past development,current challenges,and future perspectives

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Horticultural Plant Journal 2024年第6期10卷 1257-1273页

作者： Moran Zhang Yutong Han dongping li Shengyong Xu Yuan Huang Key Laboratory of Agricultural Equipment for the Middle and Lower Reaches of the Yangtze River Ministry of AgricultureCollege of EngineeringHuazhong Agricultural UniversityWuhanHubei 430070China National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhanHubei 430070China Shenzhen Branch Guangdong Laboratory for Lingnan Modern Agriculture/Genome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenGuangdong 518000China Department of Biomedical Engineering Southern University of Science and TechnologyShenzhenGuangdong 518000China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityShenzhenGuangdong 518000China Tibet Lvzhiyuan Modern Agricultural Technology Co. Ltd.ShannanTibet 856000China

Horticultural products such as fruits,vegetables,and tea offer a range of important nutrients such as protein,carbohydrates,vitamins and ***,the present yield and quality do not meet the requirements of the rapid population growth associated with global climate change,the decline in horticultural practitioners,poor automation,and epidemic diseases such as *** this context,smart horticulture is expected to greatly improve the land output rates,resource-use efficiency,and productivity,all of which should facilitate the sustainable development of the horticulture *** technologies,such as artificial intelligence,big data,the Internet of Things,and cloud computing,play an important *** paper reviews past developments and current challenges,offering future perspectives for horticultural chain *** expect that the horticulture industry would benefit from integration with smart *** requires the use of novel solutions to build a new advanced system encompassing smart breeding,smart cultivation,smart transportation,and smart ***,a new development approach combining precise perception,smart operation,and smart control should be instituted in the horticulture *** 30 years,we expect that the industry will embrace mechanical,automatic,and informational production to transform into a smart industry.

关键词： Smart horticulture Horticultural crops Emerging technologies Artificial intelligence Big data The Internet of Things

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Occlusion of the middle cerebral artery Guidance by screen imaging using an EDA-H portable medium-soft electronic endoscope

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Neural Regeneration Research 2011年第23期6卷 1806-1809页

作者： Xingbao Zhu Junli Luo Song liu dongping li Min li Quanshui Fan Department of Neurosurgery Kunming General Hospital Chengdu Military Command of Chinese PLA Kunming 650032 Yunnan Province China Disease Prevention ＆ Control Centre Chengdu Military Command of Chinese PLA Kunming 650032 Yunnan Province China

The present study aimed to verify the practicability of performing screen-based surgical operations under the guidance of a real-time viewing and recording system （RTVRS） using a portable medium-soft electronic endoscope （pmsEE）. The middle cerebral artery in rats was occluded under screen-imaging guidance using a pmsEE RTVRS to reproduce an animal model of human cerebral infarction. The screen imaging of the pmsEE RTVRS was clear, life-like, stereoscopic and synchronous with the actual operation. Screen-imaging guidance led to an accurate, smooth, minimally invasive and comparatively easy surgical procedure. The surgical success rate, time of model establishment, neurological function scores, and infarct volume were similar to those using an operating microscope. These results indicate that the self-designed pmsEE RTVRS could be utilized for portable endoscopic screen-based surgical operations.

关键词： portable medium-soft endoscope screen-based surgical operation occlusion of middle cerebral artery cerebral infarction

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Coupling mechanism between mining-induced deformation and permeability of coal

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International Journal of Mining Science and Technology 2013年第6期23卷 783-787页

作者： Xue Dongjie Zhou Hongwei Wang Chaosheng li dongping School of Mechanics&Civil Engineering China University of Mining&Technology State Key Laboratory of Coal Resources and Safe Mining China University of Mining&Technology

The coupling mechanism between mining-induced mechanical behavior and gas permeability of coal is effectively obtained in *** study means significant understanding of the prevention of coal-gas *** testing samples of coal were drilled from the 14120 mining face at the depth of690 *** on the redistribution of stress during the excavation,the coupling test between mechanical state and seepage has been designed using the triaxial servo-controlled seepage equipment for thermofluid-solid coupling of coal containing *** is the result that there are two main factors influencing the mining-induced mechanical behavior of coal,such as the change ofσ_1-σ_3 andΔσ_1-Δσ_*** failure mode mainly depends on the value ofσ_1-σ_3,and the peak strength value mainly depends on the value ofΔσ_1-Δσ_*** difference of mechanical response between geostress and mining-induced stress has been obtained,which can be a theoretical support for safe mining such as reasonable gas drainage,prevention of coal-gas outburst and gas over-limit.

关键词： Mining-induced mechanical behavior Coal deformation Seepage Coupling test

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3D-structured carbon nanotube fibers as ultra-robust fabrics for adaptive electromagnetic shielding

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Nano Research 2024年第9期17卷 8521-8530页

作者： dongping li Ping Wang Yuanyuan li Zhenzhong Yong Kunjie Wu Yan Zhang Jin Wang Dongmei Hu Key Laboratory of Multifunctional and Smart Systems Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China College of Textile and Clothing Engineering of Soochow University Suzhou 215021China

Wireless communication technology is indispensable in our daily lives,but it also results in serious electromagnetic radiation ***,developing smart electromagnetic interference shielding materials with adjustable electromagnetic wave(EMW)responses holds significant promise for future electromagnetic shielding *** this study,we propose an electromagnetic shielding switch(ESS)characterized by tunable electromagnetic shielding performance achieved by fabricating a three-dimensional(3D)carbon nanotube-based spacer fabric(CNT-SF)and modifying CNT-SF with chemical vapor deposition(CCNT-SF).The CCNT-SF displays direction-dependent electrical conductivity by manipulating the warp and weft density,measuring 128 S/m transversely and 447 S/m *** characteristic allows the CCNT-SF to transmit or shield EMW by adjusting the angle of EMW incidence through fabric rotation,resulting in anisotropic electromagnetic shielding performance(33 dB transversely and 87 dB vertically).This feature enables switchable shielding with an on/off ratio of ***,the unique 3D structure confers excellent mechanical properties on the fabric,with compressive strength reaching 120 *** a flexible,lightweight,and mechanically robust ESS,the CCNT-SF holds promising prospects for mitigating the challenges of increasingly severe and intricate electromagnetic environments.

关键词： carbon nanotube spacer fabric electromagnetic shielding impact resistance joule heating electromagnetic shielding switch

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FERONIA Receptor Kinase Controls Seed Size in Arabidopsis thaliana

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Molecular Plant 2014年第5期7卷 920-922页

作者： Feng Yu Jian li Yuan Huang li liu dongping li liangbi Chen Sheng Luan College of life Sciences Hunan Normal University Changsha 410081 RR. China Hunan Province Key Laboratory of Plant Functional Genomics andDevelopmental Regulation Hunan University Changsha 410082 RR. China Department of Plant and Microbial Biology University of California Berkeley CA 94720 USA

Dear Editor, Plants have evolved elaborate mechanisms by which cell elongation regulation is coupled to the environmental signals. The plasma membrane receptor kinase FERONIA （FER） has emerged as an important regulatory node in controlling cell elongation and hormone crosstalk （Guo et al., 2009; Deslauriers and Larsen, 2010; Duan et al., 2010; Yu et al.,

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Correlation Evaluation of Ion Adsorption-Based Rare Earth Leaching Performance Based on Zeta Potential Drop Leaching

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Journal of Materials Science and Chemical Engineering 2023年第11期11卷 28-47页

作者： Xunhe li Zhengxiong Ding Sengbiao Zeng Yanzhu liu dongping li Yongxiu li School of Chemistry and Chemical Engineering Nanchang University Nanchang China

Rare earth elements are indispensable raw materials for advanced aero-engines, special optical materials, and high-performance electronic products. With the development of the social economy, the global demand for rare earth resources is increasing, and rare earths have become a key metal for the development of new industries and frontier technologies that are highly valued both at home and abroad. Ion-adsorbed rare earth ores are an important source of rare earths, so the efficient green leaching of ion-adsorbed rare earths is important. Researchers found that the selection of an efficient green leaching agent for ion-adsorbed rare earths is based on the zeta potential of tailing clay minerals in addition to leaching efficiency, and both zeta potential and leaching ion concentration are related to mineral acidity and alkalinity, and the pH of tailing water suspension is a direct indicator of environmental water quality requirements. Therefore, the efficiency of the leaching process is closely integrated with the environmental evaluation, and the characteristics and correlation of the changes in zeta potential, pH, conductivity and pollutant concentration of the pulp of clay mineral content during the leaching process of ore leaching and tailings aqueous electrolyte solution leaching are studied by evaluating the leaching system, and a set of correlation leaching efficiency and environmental impact evaluation method is established based on the results of the above analysis, which is of scientific development of ion adsorption rare earth resources. It has important theoretical significance and practical application value.

关键词： Ion Adsorption Rare Earth Ph Value Zeta Potential the Leaching Efficiency

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出租车上客区规模的Monte Carlo仿真计算方法

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计算机工程与应用 2011年第18期47卷 22-25页

作者：黎冬平上海市城市建设设计研究院上海200125

为确定出租车上客区的合理规模,分析其运行特征,同时存在乘客和出租车相互等待的情况,而不能采用停车场模型或排队论模型计算。采用Monte Carlo仿真方法,利用随机原理来拟合乘客与出租车的相互作用过程,给出了合理规模的确定流程。实例... 详细信息

为确定出租车上客区的合理规模,分析其运行特征,同时存在乘客和出租车相互等待的情况,而不能采用停车场模型或排队论模型计算。采用Monte Carlo仿真方法,利用随机原理来拟合乘客与出租车的相互作用过程,给出了合理规模的确定流程。实例应用证明该方法具有很好的适用性;同时分析结果表明:(1)当出租车上客区泊位规模达到一定程度时,再增加并不能减少乘客等待时间;(2)高峰时段适当限制乘客的排队长度能够在较小比例的乘客损失下,极大地降低乘客的等待时间。

关键词：交通工程上客区规模 Monte Carlo仿真

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Gut commensal metabolite rhamnose promotes macrophages phagocytosis by activating SLC12A4 and protects against sepsis in mice

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Acta Pharmaceutica Sinica B 2024年第7期14卷 3068-3085页

作者： dongping li Rongjuan Wei Xianglong Zhang Shenhai Gong Meijuan Wan Fangzhao Wang Jiaxin li Meiling Chen Ruofan liu Yantong Wan Yinghao Hong Zhenhua Zeng Peng Gu Zhang Wang Kutty Selva Nandakumar Yong Jiang Hongwei Zhou Peng Chen Department of Pathophysiology Guangdong Provincial Key Laboratory of ProteomicsSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhou 510000China Department of Critical Care Medicine Nanfang HospitalSouthern Medical UniversityGuangzhou 510000China Department of Gastroenterology Shenzhen HospitalSouthern Medical UniversityShenzhen 518000China Institute of Ecological Sciences School of Life SciencesSouth China Normal UniversityGuangzhou 510000China Department of Environmental and Biosciences School of BusinessInnovation and SustainabilityKristian IV’s vag 3Halmstad UniversityHalmstad 30004Sweden Microbiome Medicine Center Zhujiang HospitalSouthern Medical UniversityGuangzhou 510000China

Sepsis progression is significantly associated with the disruption of gut ***,the modulatory mechanisms of gut microbiota operating during sepsis are still ***,we investigated how gut commensals impact sepsis development in a pre-clinical *** ligation and puncture(CLP)surgery was used to establish polymicrobial sepsis in *** depleted of gut microbiota by an antibiotic cocktail(ABX)exhibited a significantly higher level of mortality than *** determined by metabolomics analysis,ABX treatment has depleted many metabolites,and subsequent supplementation with L-rhamnose(rhamnose,Rha),a bacterial carbohydrate metabolite,exerted profound immunomodulatory properties with a significant enhancement in macrophage phagocytosis,which in turn improved organ damage and ***,rhamnose binds directly to and activates the solute carrier family 12(potassium-chloride symporter),member 4(SLC12A4)in macrophages and promotes phagocytosis by activating the small G-proteins,Ras-related C3 botulinum toxin substrate1(Rac1)and cell division control protein 42 homolog(Cdc42).Interestingly,rhamnose has enhanced the phagocytosis capacity of macrophages from sepsis *** conclusion,by identifying SLC12A4 as the host interacting protein,we disclosed that the gut commensal metabolite rhamnose is a functional molecular that could promote the phagocytosis capacity of macrophages and protect the host against sepsis.

关键词： Gut microbiota Sepsis Rhamnose SLC12A4 GTP-Rac1 GTP-Cdc42 Macrophage Phagocytosis

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带容量限制的城市出租车服务站点选址模型

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东南大学学报（自然科学版） 2009年第2期39卷 394-398页

作者：黎冬平陈峻晏克非同济大学交通运输工程学院上海201804 东南大学交通学院南京210096

为了确定城市出租车服务站点的位置,将空驶出租车到达服务站点接受服务的过程看作是运营的一个中间过程,以到达、接受服务、离去3个过程时间和目的地交通小区的乘客需求量为主要影响因素,建立了出租车的服务站点选择函数,在此基础上以... 详细信息

为了确定城市出租车服务站点的位置,将空驶出租车到达服务站点接受服务的过程看作是运营的一个中间过程,以到达、接受服务、离去3个过程时间和目的地交通小区的乘客需求量为主要影响因素,建立了出租车的服务站点选择函数,在此基础上以出租车到达服务站点的总行驶时间最短为目标,建立了约束型的优化选址模型.研究考虑了由于用地与服务站点的运营收益条件下的最大与最小容量限制.算例优化计算结果表明:不考虑容量限制时增加服务站点将提高系统的效益;而在容量限制条件下,服务站点的增加反而可能导致出租车的行驶时间增加或服务站点的不经济性.该研究结果有助于确定出租车服务站点的合理个数与选址布局.

关键词：交通工程出租车服务站点容量限制选择模型

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