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以苝二酰亚胺为构筑块的超分子聚集体的研究进展

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化学通报 2008年第9期71卷 650-658页

作者：冯君茜李希友山东大学化学与化工学院

苝二酰亚胺(PDI)超分子聚集体以其独特的光物理和光化学性质而受到广泛的关注。本文首先简单介绍了苝二酰亚胺的性质及合成,然后分别介绍了在配位键、π-π堆积、氢键以及正负离子的静电引力作用下组装超分子聚集体的研究现状。最后对... 详细信息

苝二酰亚胺(PDI)超分子聚集体以其独特的光物理和光化学性质而受到广泛的关注。本文首先简单介绍了苝二酰亚胺的性质及合成,然后分别介绍了在配位键、π-π堆积、氢键以及正负离子的静电引力作用下组装超分子聚集体的研究现状。最后对苝二酰亚胺超分子聚集体的发展前景作了展望。

关键词：苝二酰亚胺超分子聚集体金属离子配位键 π-π堆积氢键静电相互作用

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相转移法合成哒嗪类糖苷

南京师大学报（自然科学版） 2008年第4期31卷 89-91页

作者：冯君茜孙昌俊山东警察学院刑事科学技术系山东济南250014 山东大学化学与化工学院山东济南250100

本文采用相转移法,使乙酰基-α-D-溴代糖1(A-C)与6-(4-甲氧基)苯基-3(2H)-哒嗪酮2以及6-(4-羟基苯基)-4,5-二氢-3(2H)-哒嗪酮5反应合成了3(A,C)及6(A,B)四个乙酰基糖苷化合物.其中3A经氨解脱去保护基又得到一个化合物4A′.其结构被IR、1... 详细信息

本文采用相转移法,使乙酰基-α-D-溴代糖1(A-C)与6-(4-甲氧基)苯基-3(2H)-哒嗪酮2以及6-(4-羟基苯基)-4,5-二氢-3(2H)-哒嗪酮5反应合成了3(A,C)及6(A,B)四个乙酰基糖苷化合物.其中3A经氨解脱去保护基又得到一个化合物4A′.其结构被IR、1HNMR和元素分析所证实.

关键词：哒嗪酮糖苷相转移催化法抗癌化合物

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极压微乳化切削液的研制与应用

润滑与密封 2005年第5期30卷 157-161页

作者：冯君茜胡德栋山东省警察学院科技系济南250101 山东大学材料科学与工程学院济南250061

按照微乳液调配理论,研制了一种由表面活性剂、润滑剂、防锈剂、稳定剂、低粘度矿物油、杀菌剂和水等组成的透明极压微乳化切削液,详细探讨了防锈剂、油性剂、极压剂、表面活性剂等添加剂的选择;讨论了这种微乳化切削液的性能、特点及... 详细信息

按照微乳液调配理论,研制了一种由表面活性剂、润滑剂、防锈剂、稳定剂、低粘度矿物油、杀菌剂和水等组成的透明极压微乳化切削液,详细探讨了防锈剂、油性剂、极压剂、表面活性剂等添加剂的选择;讨论了这种微乳化切削液的性能、特点及应用情况。应用结果表明:研制的极压微乳化切削液是透明稳定的,具有优良的防锈性、润滑性、冷却性和清洗性;产品不含对人体有害的氯化石蜡和亚硝酸钠等物质。

关键词：微乳液切削液润滑性防锈性

Understanding the local structure and thermophysical behavior of Mg-La liquid alloys via machine learning potential

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia Zhao Taixi feng Guimin Lu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potassium and Lithium Strategic Resources East China University of Science and TechnologyShanghai 200237China

The local structure and thermophysical behavior of Mg-La liquid alloys were in-depth understood using deep potential molecular dynamic(DPMD) simulation driven via machine learning to promote the development of Mg-La alloys. The robustness of the trained deep potential(DP) model was thoroughly evaluated through several aspects, including root-mean-square errors(RMSEs), energy and force data, and structural information comparison results;the results indicate the carefully trained DP model is reliable. The component and temperature dependence of the local structure in the Mg-La liquid alloy was analyzed. The effect of Mg content in the system on the first coordination shell of the atomic pairs is the same as that of temperature. The pre-peak demonstrated in the structure factor indicates the presence of a medium-range ordered structure in the Mg-La liquid alloy, which is particularly pronounced in the 80at% Mg system and disappears at elevated temperatures. The density, self-diffusion coefficient, and shear viscosity for the Mg-La liquid alloy were predicted via DPMD simulation, the evolution patterns with Mg content and temperature were subsequently discussed, and a database was established accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides new guidance for related studies.

关键词： magnesium-lanthanum liquid alloys local structure macroscopic properties thermodynamic behavior deep potential mo-lecular dynamic simulation

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水溶性脱模剂的制备

合成润滑材料 2005年第1期32卷 11-15页

作者：冯君茜胡德栋李百霞山东警察学院科技系济南250014 山东大学材料科学与工程学院济南250061

制备了一种含卵磷脂的水溶性脱模剂,该脱模剂具有良好的脱模性、防锈性和乳化稳定性,并且不含有毒有害物质,是一种环境友好的脱模剂。

关键词：水溶性脱模剂卵磷脂制备环境友好

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang feng Gao Yu-Gui Peng Peng Wu Zong-Lin Li Xue-feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

红皮白肉与红皮红肉火龙果植株茎部内生微生物群落结构特征

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中国农业科学 2024年第2期57卷 416-428页

作者：周信雁陈思宇魏宇飞朱瑜冯君茜丁点草陆贵锋杨尚东广西大学农学院/广西农产品安全重点实验室/植物科学国家级实验教学示范中心广西农业科学院园艺研究所

【目的】比较分析红皮白肉与红皮红肉火龙果植株茎部内生微生物群落结构特征，旨在探究红肉火龙果果肉颜色形成与植株内生微生物群落的关联性，挖掘与其颜色形成相关的功能微生物。【方法】以红皮白肉与红皮红肉火龙果植株茎部为试验材... 详细信息

【目的】比较分析红皮白肉与红皮红肉火龙果植株茎部内生微生物群落结构特征，旨在探究红肉火龙果果肉颜色形成与植株内生微生物群落的关联性，挖掘与其颜色形成相关的功能微生物。【方法】以红皮白肉与红皮红肉火龙果植株茎部为试验材料，基于高通量测序技术比较分析茎部内生微生物（细菌、真菌）多样性与丰富度，门、属分类水平的群落结构组成以及优势菌群相对丰度占比；基于LEfSe差异分析探究红皮白肉与红肉火龙果植株茎部中具有显著差异的内生微生物。【结果】红皮白肉与红皮红肉火龙果植株茎部内生微生物群落结构特征存在显著差异。红皮红肉火龙果植株茎部中特有的细菌、真菌OTU数量均高于相应的白肉火龙果；门分类水平表现为，子囊菌门（Ascomycota）真菌在红肉火龙果植株茎部中的相对丰度占比高于相应的白肉火龙果，其相对丰度占比是白肉火龙果的1.15倍；属分类水平表现为，链霉菌属（Streptomyces）细菌是红肉火龙果植株茎部中相对丰度占比最高的优势细菌属，青霉菌属（Penicillium）真菌是红肉火龙果植株茎部中相对丰度占比最高的优势真菌属，二者相对丰度占比分别是白肉火龙果的1.24倍和4.27倍；另一方面，红肉火龙果植株茎部中还富集了列契瓦尼尔氏菌属（Lechevalieria）、糖霉菌属（Glycomyces）、未分类肠杆菌属（unclassified＿f＿＿Enterobacteriaceae）、马杜拉放线菌属（Actinomadura）等优势细菌属以及unclassified＿f＿＿Serendipitaceae、unclassified＿c＿＿GS13、unclassified＿o＿＿Atractiellales、unclassified＿o＿＿Auriculariales、篮状菌属（Talaromyces）等优势真菌属。LEfSe差异分析结果显示，原小单孢菌属（Promicromonospora）细菌和木霉菌属（Xylomyces）真菌在红肉火龙果植株茎部中显著富集。【结论】内生微生物群落组成与红肉火龙果果肉中色素的产生、代谢积累密切相关；链霉菌属、未分类肠杆菌属、原小单孢菌属细菌及子囊菌门、青霉菌属、篮状菌属和木霉菌属真菌可能是红肉火龙果果肉色素合成与代谢积累相关的功能微生物。

关键词：火龙果果肉颜色内生微生物高通量测序

NIR photothermal enhancement to achieve high-efficiency nitrogen reduction to ammonia by polyoxometalates@Fe-polydopamine

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Nano Research 2025年第1期18卷 118-128页

作者： Xiaofei Chen Lixin Wu feng Bai Key Laboratory for Special Functional Materials of Ministry of Education National&Local Joint Engineering Research Center for High-Efficiency Display and Lighting TechnologySchool of Nanoscience and Materials EngineeringHenan UniversityKaifeng 475004China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China

The development of atmospheric pressure N_(2)reduction to NH_(3)is attracting much attention in green chemistry,yet it is still a challenge to obtain satisfactory activity under mild ***,an efficient near-infrared(NIR)photothermal catalysis reduction of N_(2)constitutes an occurrence is *** or without V-substitute polyoxometalates(POMs)loaded on the surface of Fechelated polydopamine(Fe-PDA)photothermal support through the electrostatic interactions,NIR photothermal catalysts POMs@Fe-PDA are *** induction of“FeV”cofactor facilitates electron transfer between V(V)/V(IV)&Fe(III)/Fe(II)and N_(2),thereby activating N_(2)*** synergy between the catalytic activity of V-POMs and the local NIR photothermal effect of Fe-PDA dramatically enhances N_(2)***,PMo_(10)V_(2)@Fe-PDA exhibits a significantly enhanced NH_(3)production rate of 181.1μmol·LN^(-1)with a turnover frequency of 1006.1 mmol·MN^(-1)·hN^(-1)under 808 nm NIR laser radiation,being the highest values reported at atmospheric *** expect that this work could provide an alternative approach for photothermal catalysis N_(2)reduction under mild conditions.

关键词： polyoxometalate near-infrared photothermal catalysis N_(2)reduction mild condition

Searching for new drugs to treat Alzheimer’s disease dementia through multiple pathways

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World Journal of Clinical Cases 2025年第1期13卷 22-28页

作者： Hua Bai Xiao-feng feng Department of Neurology The Third Affiliated Hospital of Guizhou Medical UniversityDuyun 558099Guizhou ProvinceChina Department of Neurology Wulong Branch of the People's Hospital Affiliated to Chongqing UniversityWulong 408500ChongqingChina Department of Neurology Guizhou Medical UniversityGuiyang 550004Guizhou ProvinceChina

Dementia is a group of diseases,including Alzheimer's disease(AD),vascular dementia,Lewy body dementia,frontotemporal dementia,Parkinson's disease dementia,metabolic dementia and toxic *** treatment of dementia mainly includes symptomatic treatment by controlling the primary disease and accompanying symptoms,nutritional support therapy for repairing nerve cells,psychological auxiliary treatment,and treatment that improves cognitive function through *** them,drug therapy to improve cognitive function is *** review focuses on introducing and commenting on some recent progress in exploring drugs to improve cognitive function,especially the new progress in drug treatment for *** mainly discuss the opportunities and challenges in finding and developing new therapeutic drugs from the aspects of acetylcholinesterase,N-methyl-D-aspartate glutamate receptor,amyloid protein,tau protein and chronic immune inflammation.

关键词： Alzheimer's disease Dementia Cholinesterase inhibitor Beta amyloid Tau protein