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Facile synthesis of the dodecahydridododecaborate (B12H122-) from borane Lewis base adducts

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Science China Chemistry 2025年

作者： Yi Jing Xin-Ran Liu Xing-Hua Wang hui Han Sha-Sha Liang Xi-Meng Chen Dong-hui wei Lai-Sheng Wang Xue-Nian Chen College of Chemistry Zhengzhou University School of Chemistry and Chemical Engineering Henan Key Laboratory of Boron Chemistry and Advanced MaterialsHenan Normal University Department of Chemistry Brown University

Polyhedral boranes are a class of well-known boron molecular clusters widely used in energy,chemistry,medicine,and materials science because of their unique physical and chemical *** efforts have been made in the past decades to find more effective synthetic methods for this important class of boron ***,existing synthetic methods suffer from low efficiency and low ***,we report a facile one-pot synthesis of[（CH3）3S]2B12H12with moderate yields at mild *** mechanisms for the multi-step chemoselective synthesis of B12H122-without other by-products are elucidated based on theoretical results and our previous *** Lewis base used in B–H bond condensation reaction,which acts as a hydrogen or to balance the newly generated polyhedral borane charges,is proposed and studied in *** current study has led to a more effective and selective synthetic method for B12H122-and has also implicated the syntheses of other new polyhedral boranes.

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Boosting Oxygen Evolution Reaction Performance on NiFe‑Based Catalysts Through d‑Orbital Hybridization

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Nano-Micro Letters 2025年第1期17卷 281-292页

作者： Xing Wang wei Pi Sheng Hu Haifeng Bao Na Yao wei Luo State Key Laboratory of New Textile Materials and Advanced Processing Technology Key Laboratory of New Textile Materials and Applications of Hubei ProvinceSchool of Materials Science and EngineeringWuhan Textile UniversityWuhan 430200People’s Republic of China College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072People’s Republic of China

Anion-exchange membrane water electrolyzers(AEMWEs)for green hydrogen production have received intensive attention due to their feasibility of using earth-abundant NiFe-based *** introducing a third metal into NiFe-based catalysts to construct asymmetrical M-NiFe units,the d-orbital and electronic structures can be adjusted,which is an important strategy to achieve sufficient oxygen evolution reaction(OER)performance in ***,the ternary NiFeM(M:La,Mo)catalysts featured with distinct M-NiFe units and varying d-orbitals are reported in this *** and theoretical calculation results reveal that the doping of La leads to optimized hybridization between d orbital in NiFeM and 2p in oxygen,resulting in enhanced adsorption strength of oxygen intermediates,and reduced rate-determining step energy barrier,which is responsible for the enhanced OER *** critically,the obtained NiFeLa catalyst only requires 1.58 V to reach 1 A cm^(−2) in an anion exchange membrane electrolyzer and demonstrates excellent long-term stability of up to 600 h.

关键词： NiFe-based catalysts d-orbital coupling Oxygen evolution reaction Anion exchange membrane electrolyzer

四川盆地典型小麦品种穗发芽抗性及与气候因子的关系

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西南农业学报 2017年第11期30卷 2574-2582页

作者：魏会廷李朝苏吴晓丽李俊汤永禄四川省农业科学院植物保护研究所四川成都610066 四川省农业科学院作物研究所/农业部西南地区小麦生物学与遗传育种重点实验室四川成都610066

【目的】本文研究了四川盆地典型小麦品种穗发芽抗性及与气候因子的关系。【方法】两年两环境(稻茬田与丘陵旱地)下,分别测定了10个品种的生理成熟期、成熟期的籽粒发芽指数(GI_P、GI_M)和成熟期降落值(FN),并研究以上参数与气候因子的... 详细信息

【目的】本文研究了四川盆地典型小麦品种穗发芽抗性及与气候因子的关系。【方法】两年两环境(稻茬田与丘陵旱地)下,分别测定了10个品种的生理成熟期、成熟期的籽粒发芽指数(GI_P、GI_M)和成熟期降落值(FN),并研究以上参数与气候因子的关系。【结果】GI_M较GI_P有大幅升高,3个穗发芽参数均存在显著的基因型、环境和互作效应。对于总变异的贡献GI_P为地点×品种>地点>品种;GI_M为品种>年份>年份×品种;而FN主要受基因型影响。参试品种环境均值,GI_P变幅22.3%~60.0%,稻茬田低于旱地。GI_M变幅61.4%~94.8%,环境间差异较小。穗发芽抗性高的品种GI_P和GI_M较低抗性品种变异更大。开花-生理成熟期(APM)是影响籽粒休眠的关键时期,此阶段的平均温度、最高温度与最低温度均显著提高GI_P与GI_M,而日温差降低GI_P,降雨日数促进GI_M,较低的温度和较大温差利于籽粒休眠的延续;APM的降雨量、日照时数对GI_P影响较小。和旱地相比,气候因子对稻茬田的GI_M的影响更为明显。【结论】基于环境、气候条件,选择适宜的品种可缓解穗发芽对小麦生产的不利影响。

关键词：四川盆地小麦穗发芽抗性温度降雨日照时数

分子标记所揭示的人工合成小麦与推广品种杂交后代中出现的新变异

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云南植物研究 2006年第5期28卷 529-533页

作者：李俊魏会廷彭正松卢宝荣杨武云四川省农科院作物研究所四川成都610066 西华师范大学生命科学院四川南充637002 复旦大学生物多样性研究中心上海200433

杂交和多倍化是小麦进化和遗传分化的重要途径,新变异的产生为人工选育小麦新品种提供了物质基础。本文选用了分布于小麦A、B、D基因组的92个SSR标记对硬粒小麦—节节麦人工合成小麦衍生材料川W5436(CW5436)及其双亲人工合成小麦Syn786(... 详细信息

杂交和多倍化是小麦进化和遗传分化的重要途径,新变异的产生为人工选育小麦新品种提供了物质基础。本文选用了分布于小麦A、B、D基因组的92个SSR标记对硬粒小麦—节节麦人工合成小麦衍生材料川W5436(CW5436)及其双亲人工合成小麦Syn786(♀)和绵阳26(My26(♂))进行了遗传分析,结果表明:人工合成小麦的各等位基因并不是按孟德尔遗传的规律传递到后代中;川W5436与双亲比较在1个SSR位点上发生了川W5436所特有的新变异,主要表现在新型DNA片段的增加,即W5436出现了双亲不具有的特殊条带。表明人工合成小麦与普通小麦杂交过程中通过人工选择的压力使双亲的遗传物质产生了偏态分离而且微卫星序列发生了改变。本文对杂交转育中SSR位点遗传分化在小麦进化中的作用等问题进行了讨论。

关键词：人工合成小麦多倍化选择压微卫星DNA 遗传分化变异

Rational design of lipid-activatable NIR-II probes for precisely imaging atherosclerotic plaque

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Science China Chemistry 2025年

作者： Xinyu Xu Yuan Ma hui Cao Li Xu Haoming Chen Sulai Liu wei Sun Guosheng Song Xiaobing Zhang State Key Laboratory for Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical EngineeringHunan University Department of Hepatobiliary Surgery/Central Laboratory Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University) Department of Cardiology the First Affiliated Hospital of Nanjing Medical University Key Laboratory of Targeted Intervention of Cardiovascular Disease Collaborative Innovation Center for Cardiovascular Disease Translational MedicineNanjing Medical University Shenzhen Research Institute of Hunan University

Atherosclerosis(AS) is a prevalent condition associated with cardiovascular and cerebrovascular diseases, featuring lipid-laden plaque; however, the insufficient resolution and low sensitivity of traditional medical imaging techniques limit their application in lipid imaging. Currently, the second near-infrared(NIR-II) fluorescence imaging offers promising sensitivity and convenience. However, existing probes have limitations in terms of signal-to-background ratio, penetration depth, and tissue scattering. Herein, we use a molecular regulatory strategy to design a lipid-activatable probe Rh-965 with high specificity and NIR-II emission for improved imaging potential in deep tissues. The potential of Rh-965 for imaging plaque lipids in mice with AS is demonstrated by localizing carotid artery plaques using NIR-II imaging. The development of more stable lipid-activated NIR-II probes can significantly enhance atherosclerosis diagnosis and facilitate in vivo imaging in deeper tissues.

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四川青衣江、岷江流域鹅观草遗传多样性的溶蛋白分析

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草业学报 2006年第4期15卷 12-20页

作者：杨烈张新全杨武云李俊魏会廷四川农业大学动物科技学院草学系四川雅安625014 四川省农科院作物所四川成都610066 西华师范大学生命科技学院四川南充637002

用酸性聚丙烯酰胺凝胶电泳(A-PAGE)技术对采自青衣江流域和岷江流域的97份鹅观草材料的种子醇溶蛋白进行了分析。在对四川青衣江、岷江流域鹅观草居群的醇溶蛋白分析中,鹅观草材料醇溶蛋白带谱存在显著差异,共出现27个条带,其中多态性条... 详细信息

用酸性聚丙烯酰胺凝胶电泳(A-PAGE)技术对采自青衣江流域和岷江流域的97份鹅观草材料的种子醇溶蛋白进行了分析。在对四川青衣江、岷江流域鹅观草居群的醇溶蛋白分析中,鹅观草材料醇溶蛋白带谱存在显著差异,共出现27个条带,其中多态性条带25条,占总条带数的92.59%;鹅观草的遗传相似性与其地理分布较为一致,表现在:1)青衣江、岷江流域鹅观草总遗传多样性指数为0.345 1,其中青衣江流域鹅观草遗传多样性指数为0.340 0,岷江流域鹅观草遗传多样性指数为0.310 0,表明青衣江流域鹅观草比岷江流域存在更为丰富的遗传变异,多样性指数更高;但流域间遗传分化系数仅为0.04,表明两江流域间遗传分化较小;各居群间遗传变异系数达0.326,表明总遗传多样性的32.6%来自居群间。2)在同一流域不同居群也存在遗传分化,其中青衣江流域各居群(除峨眉山居群分散聚在各居群外)能聚在一起;而岷江流域各居群在成都平原区段互相渗透,但能以上、中、下游区段聚开;青衣江流域各居群中以蒙山居群遗传多样性指数最高,达0.339 8,洪雅居群最低,仅0.094 7;岷江流域上游居群多样性指数最高,为0.301 7,而下游以乐山居群遗传多样性指数最低,为0.131 7。3)同一居群内鹅观草存在遗传变异,两江流域以蒙山居群变异最大,多样性指数最高。对居群遗传多样性的研究还表明,鹅观草垂直分布的遗传多样性高于水平分布;在成都平原居群由于生境片断化,导致岷江流域鹅观草生境片断化后小居群遗传分化增加,而整个成都平原“大居群”遗传多样性降低。

关键词：鹅观草居群遗传多样性醇溶蛋白

From text to image:challenges in integrating vision into ChatGPT for medical image interpretation

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Neural Regeneration Research 2025年第2期20卷 487-488页

作者： Shunsuke Koga wei Du Department of Pathology and Laboratory Medicine Hospital of the University of PennsylvaniaPhiladelphiaPAUSA

Large language models(LLMs),such as ChatGPT developed by OpenAI,represent a significant advancement in artificial intelligence(AI),designed to understand,generate,and interpret human language by analyzing extensive text *** potential integration into clinical settings offers a promising avenue that could transform clinical diagnosis and decision-making processes in the future(Thirunavukarasu et al.,2023).This article aims to provide an in-depth analysis of LLMs’current and potential impact on clinical *** ability to generate differential diagnosis lists underscores their potential as invaluable tools in medical practice and education(Hirosawa et al.,2023;Koga et al.,2023).

关键词： image diagnosis text

Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期 300-302页

作者： Ze-Min Lin Mai Xiang Wen-hui wei Shu-hui Fan Li Chen Jie Wang Xiao-Qian Yang Chun-Hao Yang Shi-Jun He Jian-Ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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Record-breaking bifunctional oxygen electrocatalyst accomplished by a data-driven approach for zinc-air batteries

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Journal of Energy Chemistry 2025年第1期100卷 144-145页

作者： Deviprasath Chinnadurai Zhi wei Seh Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR)

Rechargeable zinc-air batteries(ZABs) have recently drawn great attention in energy research due to their high theoretical capacity,low costs, and inherently safe nature [1–3]. However, the sluggish cathode reactions necessitate the development of bifunctional oxygen electrocatalysts with lower ΔE indicator values. The ΔE indicator is commonly employed to quantitatively evaluate the electrocatalytic activity of a bifunctional oxygen electrocatalyst,representing the overall overpotential from oxygen reduction reaction(ORR) to oxygen evolution reaction(OER).

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