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Chinese Chemical Letters 2025年第2期36卷 360-365页

作者： Yi Zhou Wei Zhang Rong Fu Jiaxin dong Yuxuan Liu Zihang Song Han Han kang Cai College of Chemistry Nankai University Department of Chemistry Northwestern University Department of Chemistry The University of Hong Kong

Chiral coordination molecular cages/capsules with discrete nanoconfined chiral cavities demonstrate significant potential applications across various fields. In this study, we utilized Tr?ger's base as the building block to design and synthesize two pairs of enantiopure ligands. These ligands were then self-assembled with Pd(II) ions through chiral self-sorting coordination, resulting in the formation of two pairs of homochiral M2L4-type coordination molecular capsules. Notably, due to differences in the substitution positions on the Tr?ger's base, these two pairs of enantiomeric coordination molecular capsules exhibited distinct levels of cavity closures, cavity sizes, and host-guest recognition properties. This research offers valuable insights into the construction of novel chiral molecular capsules and the regulation of confined cavities.

关键词： Chirality Host-guest recognition Metal-organic capsule Self-sorting Tröger's base

A low redox potential and long life organic anode material for sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： Zhi Li Yang Wei kang Zhou Xin Huang Xing Zhou Jie Xu Taoyi Kong Junwei Lucas Bao Xiaoli dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New EnergyCollaborative Innovation Center of Chemistry for Energy Materials(iChEM)Fudan UniversityShanghai 200433China Department of Chemistry Boston CollegeChestnut HillMA 02467USA School of Materials Science and Engineering Anhui University of TechnologyMa’anshan 243002AnhuiChina

Sodium-ion batteries (SIBs) with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials(>1 V).Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material (tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na_(4)TDC) has been developed with low redox potential (<0.7 V) and excellent cyclic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na_(4)TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg cm^(-2).By pairing with a thick Na_(3)V_(2)(PO_(4))_(3)cathode (20.6 mg cm^(-2)),the as-fabricated full cell exhibited high operating voltage (2.8 V),excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na_(4)TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

Processing,microstructure,and mechanical properties of wire arc additively-manufactured AZ91 magnesium alloy using cold arc process

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Transactions of Nonferrous Metals Society of China 2025年第1期35卷 91-104页

作者： Bai-hao CAI Ji-kang FAN Jie LI dong-qing YANG Yong PENG Ke-hong WANG Key Laboratory of Controlled Arc Intelligent Additive Technology Ministry of Industry and Information TechnologyNanjing University of Science and TechnologyNanjing 210094China School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China

Thin walls of an AZ91 magnesium alloy with fine equiaxed grains were fabricated via cold arc-based wire arc additive manufacturing(CA-WAAM),and the droplet transfer behaviours,microstructures,and mechanical properties were *** results showed that the cold arc process reduced splashing at the moment of liquid bridge breakage and effectively shortened the droplet transfer *** microstructures of the deposited samples exhibited layered characteristics with alternating distributions of coarse and fine *** layer-by-layer deposition,the β-phase precipitated and grew preferentially along grain boundaries,while the fineη-Al_(8)Mn_(5)phase was dispersed in the α-Mg *** mechanical properties of the CA-WAAM deposited sample showed isotropic *** ultimate tensile strength and elongation in the building direction(BD)were 282.7 MPa and 14.2%,*** microhardness values of the deposited parts were relatively uniform,with an average value of HV 69.6.

关键词： AZ91 magnesium alloy droplet transfer microstructure mechanical properties cold arc process

Terahertz Frequency Domain Response for Insulation State Assessment of Vehicle Cable Terminal Under Electro-Thermal Aging

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CSEE Journal of Power and Energy Systems 2025年第1期11卷 458-467页

作者： Binglei Cao Shuaibing Li Yi Cui dong Yang Yongqiang kang Baopeng Lu Guangning Wu School of New Energy and Power Engineering Lanzhou Jiaotong UniversityLanzhouChina School of Engineering University of Southern QueenslandSpringfieldAustralia School of Automation and Electrical Engineering Lanzhou Jiaotong UniversityLanzhouChina School of Electrical Engineering Southwest Jiaotong UniversityChengduChina

To accurately diagnose the aging condition of the vehicle-mounted high-voltage cable terminals under the combined electro-thermal stress,this paper proposes a terahertz frequency spectrum technology-based ***,an electro-thermal aging platform is established in the laboratory to obtain the test samples of ethylene-propylene rubber(EPR)cable terminals with different aging ***,the degree of electro-thermal aging is characterized by frequency spectrum,absorption coefficient spectrum,absorption spectrum,refractive index and dielectric constant in the terahertz ***,the micro-morphology and micro-area structure of the test samples under different aging gradients are also observed by scanning electron microscopy,and both the material and chemical properties are *** findings demonstrate that terahertz frequency spectra offer significant benefits in non-destructively detecting and identifying the insulation condition of vehicle cable terminals during electro-thermal *** tests confirm the feasibility of utilizing the terahertz frequency spectrum to assess the insulation aging state of EPR cable terminals,making it potentially applicable for on-site purposes.

关键词： Cable terminal degradation electro-thermal aging nondestructive inspection terahertz(THz)technology.

Breaking Solvation Dominance Effect Enabled by Ion-Dipole Interaction Toward Long-Spanlife Silicon Oxide Anodes in Lithium-Ion Batteries

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Nano-Micro Letters 2025年第4期17卷 367-380页

作者： Shengwei dong Lingfeng Shi Shenglu Geng Yanbin Ning Cong kang Yan Zhang Ziwei Liu Jiaming Zhu Zhuomin Qiang Lin Zhou Geping Yin Dalong Li Tiansheng Mu Shuaifeng Lou State Key Laboratory of Space Power-Sources School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001People’s Republic of China School of Marine Science and Technology Harbin Institute of Technology at WeihaiWeihai 264200People’s Republic of China Chongqing Research Institute of HIT Chongqing 401135People’s Republic of China

Micrometer-sized silicon oxide(SiO)anodes encounter challenges in large-scale applications due to significant volume expansion during the alloy/de-alloy ***,an innovative deep eutectic electrolyte derived from succinonitrile is introduced to enhance the cycling stability of SiO *** functional theory calculations validate a robust ion-dipole interaction between lithium ions(Li^(+))and succinonitrile(SN).The cosolvent fluoroethylene carbonate(FEC)optimizes the Li^(+)solvation structure in the SN-based electrolyte with its weakly solvating *** dynamics simulations investigate the regulating mechanism of ion-dipole and cation-anion *** unique Li^(+)solvation structure,enriched with FEC and TFSI^(-),facilitates the formation of an inorganic-organic composite solid electrolyte interphase on SiO ***-CT further detects the inhibiting effect on the SiO volume *** a result,the SiO|LiCoO_(2) full cells exhibit excellent electrochemical performance in deep eutectic-based *** work presents an effective strategy for extending the cycle life of SiO anodes by designing a new SN-based deep eutectic electrolyte.

关键词： Lithium-ion batteries Micrometer-sized silicon oxide Ion-dipole interaction Long-term cycling

Investigation of the infection route of HIV-associated cytomegalovirus retinitis

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International Journal of Ophthalmology(English edition) 2025年第3期18卷 478-486页

作者： Jie Cai Zi-kang Xie dong-Yong Tang Hui-Yi Zuo Hao Liang Department of Ophthalmology the First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina

AIM:To investigate the etiology of ocular pathogens and to establish the various pathogens present in human immunodeficiency virus(HIV)patients with cytomegalovirus retinitis(CMVR).METHODS:A total of 17 HIV-infected patients with concomitant eye disorders were *** were divided into CMVR group(10 patients,18 eyes)and non-CMVR group(7 patients,9 eyes)based on clinical manifestations and the presence of cytomegalovirus(CMV)-DNA in ocular *** viral load of CMV was assessed using polymerase chain reaction in aqueous humor,vitreous fluid,and peripheral blood samples of patients in the CMVR ***,peripheral blood CD4+T cell counts were measured in both ***:In the CMVR group,the CMV-DNA load in the vitreous and aqueous humor samples was substantially higher than in the peripheral blood samples(P<0.01).CMVDNA load in the aqueous humor and vitreous samples of the two eyes in the CMVR group was determined to be statistically significant(10 patients,16 eyes,P=0.018,0.012).Peripheral blood CD4+T cell counts in the CMVR group were adversely linked with the CMV-DNA load in both the aqueous humor and peripheral blood(P=0.005,0.048).Compared with the non-CMVR group,the peripheral blood CD4+T cell count in the CMVR group decreased significantly(P=0.014).The peripheral blood CD4+T cell count exceeded 300 cells/μL in 85.71%of non-CMVR patients,whereas it was below 100 cells/μL in 90.00%of the CMVR *** intraocular specimens of the patients who underwent CMVR testing did not include any additional ***:In HIV-associated CMVR patients,there may exist alternative,yet unidentified,infection pathways for intraocular CMV in addition to the conventional *** substantial difference in CMV-DNA load between the eyes of most CMVR patients suggests that CMV may originate from different sources in each *** proportion of peripheral blood CD4+T cells in HIV patients is negatively correlated with the quantity of CMV viruses

关键词： cytomegalovirus retinitis acquired immunodeficiency syndrome human immunodeficiency virus

Deciphering fungal metabolon coupling tandem inverse-electrondemand Diels-Alder reaction and semipinacol rearrangement for the biosynthesis of spiro polycyclic alkaloids

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Science China Chemistry 2025年第1期68卷 288-296页

作者： Shuai Liu Wen-Qiang Xu Ying-Tong Di Man-Cheng Tang Ding-kang Chen Ming-Ming Cao Yao-Wen Chang Hong-Yu Tang Chun-Mao Yuan Jun-Bo Yang Zhi-Li Zuo Han Guo Zi-Fei Xu Ying Zeng Yun-dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemistry and Natural Medicines(Chinese Academy of Sciences) Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical OncogenomicsPeking University Shenzhen Graduate SchoolShenzhen 518055China Shenzhen Bay Laboratory Shenzhen 518055China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Microbial Metabolism School of Life Sciences&BiotechnologyShanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical UniversityGuiyang 550014China Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest ChinaKunming Institute of BotanyChinese Academy of SciencesKunming 650201China Yunnan Key Laboratory for Wild Plant Resources Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Research Unit of Chemical Biology of Natural Anti-Virus Products Chinese Academy of Medical SciencesBeijing 100730China

In the intricate process of natural product biosynthesis,a metabolon can enhance metabolic flux by associating sequential enzymes.A fungal metabolon,comprising of flavin-dependent monooxygenase Spe F and P450 monooxygenase Spe G,is identified in the biosynthesis of spiro polycyclic alkaloids(+)-notoamide B and its diastereomer(+)-versicolamide *** notoamide E as a substance,Spe F/Spe G metabolon can control the stereoselectivity of its 2,3-epoxidation,followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium ***,(+)-notoamide B and(+)-versicolamide B are produced via tandem nonenzymatic inverse-electron-demand Diels-Alder reaction and semipinacol *** provides the first example of metabolon in the biosynthesis of spiro-prenylated indole alkaloids.

关键词： metabolon Diels-Alder reaction semipinacol rearrangement biosynthesis notoamides spiro polycyclic alkaloids

Analysis of the anti-T2DM components in dichloromethane fraction of Schisandra sphenanthera and its mechanism

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Traditional Medicine Research 2025年第1期10卷 27-43页

作者： Shi-Bo Feng Hai-Hui Jiang Hui-Li kang Yi Jiang Hua-Wei Zhang Xiao-Mei Song Yu-Ze Li Wen-Li Huang dong-dong Zhang Chong Deng School of Pharmacy Shaanxi University of Chinese MedicineXianyang 712046China School of Pharmacy and Shaanxi Qinling Application Development and Engineering Center of Chinese Herbal Medicine Shaanxi University of Chinese MedicineXianyang 712046China Key Laboratory for Research and Development of“Qin Medicine”of Shaanxi Administration of Traditional Chinese Medicine Xianyang 712046China Shaanxi Key Laboratory of Research and Application of“Taibai Qi Yao” Xianyang 712046China

Background:The type 2 diabetes mellitus(T2DM)pharmacodynamic study of various parts of Schisandra sphenanthera was conducted in the previous stage,and it was found that dichloromethane extracted part(SDP)had a significant hypoglycemic ***,the components of SDP were analyzed,and the specific mechanism of its anti-T2DM was ***:We used a high-fat,high-sugar diet in combination with streptozotocin to induce a T2DM rat model,and the model rats were divided into two groups according to body weight and blood ***,oral glucose tolerance test,fasting blood glucose,low density lipoprotein cholesterol,superoxide dismutase,insulin,glycated hemoglobin,total cholesterol,nonesterified free fatty acids,alanine aminotransferase,high-density lipoprotein cholesterol,aspartate aminotransferase,malondialdehyde,and glutathione peroxidase were measured,organ indices were calculated,and pathological sections of pancreas and liver were *** 16S rRNA V3–V4 region of intestinal flora was sequenced to explore the effect of SDP on biochemical indicators and intestinal *** on the above indicators,the anti-T2DM mechanism of SDP in Schisandra sphenanthera was ***:After six weeks of administration,the biochemical indices of diabetic rats were diminished compared to the control *** SDP could significantly increase the gut microbialα-diversity index,resulting in significant changes in the flora of T2DM rats,with increased richness and diversity,reduced harmful flora,and significantly back-regulated the levels of acetic acid,propionic acid,and butyric ***:SDP can improve the symptoms associated with elevated blood glucose,dyslipidemia,elevated fasting insulin levels,and damaged glucose tolerance in *** against T2DM may be through the control of intestinal flora to normalize and exert anti-diabetic effect;its main active components may be lignans and terpenoids.

关键词： Schisandra sphenanthera T2DM intestinal flora HPLC

SiEPFs enhance water use efficiency and drought tolerance by regulating stomatal density in foxtail millet(Setaria italica)

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Journal of Integrative Agriculture 2025年第2期24卷 786-789页

作者： Jianhong Hao Xueting kang Lingqian Zhang Jiajing Zhang Huashuang Wu Zidong Li Dan Wang Min Su Shuqi dong Xiaorui Li Lulu Gao Guanghui Yang Xiaoqian Chu Xiangyang Yuan Jiagang Wang Hou Ji Laboratory in Shanxi Province/College of Agriculture Shanxi Agricultural University State Key Laboratory of Sustainable Dryland Agriculture (in preparation) Shanxi Agricultural University

Highlights The water use efficiency of the drought-resistant variety MT3 was found to be correlated with stomatal *** enhance water use efficiency and drought tolerance by regulating stomatal density in foxtail ***(D)causedbyglobalwarmingisseverely affecting crop growth and agricultural production (Gupta etal. 2020).Stomata provide an important window for photosynthesis and water transpiration, and stomatal densityiscloselyrelatedtothedroughtresponse(Herrmann and Torii 2021).Foxtail millet (Setaria italica)isan important drought tolerant crop that plays an important role in ensuring food and nutritional security(Muthamilarasan and Prasad 2017).Unlike in other crops, the drought-resistance mechanism of foxtail millet is not fully understood, with only SiDPY1, SiYTH1, and SiMYBS3 currently identified and characterized (Liu et al.2023; Luo et al. 2023; Zhao et al. 2023).Therefore, the drought resistance mechanism remains unclear.

关键词： tolerance drought density water efficiency enhance foxtail italica millet regulating

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众音杂沓:金初文学生态的历史还原

北方民族大学学报(哲学社会科学版) 2025年第1期 160-168页

作者：于东新康奥博内蒙古民族大学文学与新闻传播学院内蒙古通辽028000 河北大学文学院河北保定071000

金国初立,时局纷乱,为尽快实现少数女真人对绝大多数汉人、契丹人等的统治而“借才异代”,辽、宋文士一时间集聚金廷。其中,作为金初文学主力军的由宋入金文人群体不被女真统治者所信任,处境艰难。这一群体身份结构的多样性及当时社会... 详细信息

金国初立,时局纷乱,为尽快实现少数女真人对绝大多数汉人、契丹人等的统治而“借才异代”,辽、宋文士一时间集聚金廷。其中,作为金初文学主力军的由宋入金文人群体不被女真统治者所信任,处境艰难。这一群体身份结构的多样性及当时社会政治的复杂性,造就了他们异常复杂的情感与心态,体现在文学上就是金初文学没有主旋律,没有同一性,众音杂沓,呈现出多元文学生态景观。同时,这在客观上也构建了其时文坛的丰富多元和规模宏大的创作队伍。基于这些“异代”文人较为深厚的艺术修为,金代文学获得了较高起点,这也成为其“一代制作能自树立唐、宋之间”的重要原因。

关键词：金代文学古代多民族文学文学生态