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A 3D hierarchical electrocatalyst:Core–shell Cu@Cu(OH)_(2)nanorods/MOF octahedra supported on N-doped carbon for oxygen evolution reaction

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Nano Research 2023年第5期16卷 8012-8017页

作者： Xinran Li Yipei Li changli Wang Huaiguo xue Huan Pang Qiang Xu School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials(SKLPM) SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory(SKAEM-JIL)Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of GuangdongDepartment of ChemistryDepartment of Materials Science and Engineering and SUSTech Academy for Advanced Interdisciplinary StudiesSouthern University of Science and Technology(SUSTech)Shenzhen 518055China

Cu-based materials are seldom reported as oxygen evolution reaction(OER)electrocatalysts due to their inherent electron orbital configuration,which makes them difficult to adsorb oxygen-intermediates during OER.Reasonably engineering the hierarchical architectures and the electronic structures can improve the performance of Cu-based OER catalysts,such as constructing multilevel morphology,inducing the porous materials,improving the Cu valence,building heterostructures,doping heteroatoms,etc.In this work,copper-1,3,5-benzenetricarboxylate(HKUST-1)octahedra in-situ grow on the Cu nanorod(NR)-supported N-doped carbon microplates,meanwhile an active layer of Cu(OH)_(2)forms on the surface of the original conductive Cu NRs.The octahedral HKUST-1,serving as a spacer between the microplates,greatly improves the porosity and increases the available active sites,facilitating the mass transport and electron transfer,thus resulting in greatly enhanced OER performance.

关键词： core–shell nanorod Cu@Cu(OH)_(2) metal–organic framework oxygen evolution reaction

Sintering characteristics, phase transitions, and microwave dielectric properties of low-firing [(Na_(0.5)Bi_(0.5))_(x)Bi_(1-x)](W_(x)V_(1-x))O_(4) solid solutionceramics

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Journal of Advanced Ceramics 2023年第6期12卷 1178-1188页

作者： Xian xue Xiaomeng Li changli Fu Yan Zhang Jing Guo Hong Wang State Key Laboratory for Mechanical Behavior of Materials Faculty of Electronic and Information EngineeringXi'an Jiaotong UniversityXi'an 710049China State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and EngineeringXi'an Jiaotong UniversityXi'an 710049China Department of Materials Science and Engineering&Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices Southern University of Science and TechnologyShenzhen 518055China Department of Physiology and Pathophysiology Shaanxi Engineering and Research Center of VaccineKey Laboratory of Environment and Genes Related to Diseases of Education Ministry of ChinaSchool of Basic Medical SciencesXi'an Jiaotong UniversityXi'an 710061China

A series of high-k[(Na_(0.5)Bi_(0.5))_(x)Bi_(1-x)](W_(x)V_(1-x))O_(4)(abbreviated as NBWV(x value))solid solution ceramics with a scheelite-like structure are synthesized by a modified solid-state reaction method at the temperature range of 680-760 C.A monoclinic(0≤x<0.09)to tetragonal scheelite(0.09≤x≤1.0)structural phase transition is confirmed by X-ray difraction(XRD),Raman,and infrared(IR)analyses.The effect of structural deformation and order-disorder caused by Na^(+)/Bi^(3+)/W^(6+) complex substitution on microwave dielectric properties is investigated in deail.The compositional series possess a wide range of variable relative permittivity(er=24.8-80)and temperature coefficient of resonant frequency(TCF value,-271.9-188.9 ppm/℃).The maximum permittivity of 80 and a high Qxf value of~10,000 GHz are obtained near the phase boundary at x=0.09.Furthermore,the temperature-stable dielectric ceramics sintered at 680 C with excellent microwave dielectric properties of ε_(r)=80.7,Qxf=9400 GHz(at 4.1 GHz),and TCF value=-3.8 ppm/℃ are designed by mixing the components of x=0.07 and 0.08.In summary,similar sinterability and structural compatibility of scheelite-like solid solution systems make it potential for low-temperature co-fired ceramic(LTCC)applications.

关键词： structural phase transition order-disorder phenomena microwave ceramics dielectric behavior low sintering temperatures

基于HPLC指纹图谱及模式识别的生脉饮热稳定性评价

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南京师大学报（自然科学版） 2024年第1期47卷 14-20页

作者：王炜祺宋怡霖薛雯蔚张长丽张边江陈昌云南京晓庄学院环境科学学院江苏南京211171 江苏卫生健康职业学院药学院江苏南京211800

构建生脉饮的高效液相指纹图谱,综合运用化学模式识别技术,对其进行热稳定性评价.通过色谱图的比对分析,筛选出最优的实验条件.采用WondaSil C18(4.6 mm×150 mm, 5μm)作为色谱柱;以0.2%甲酸-乙腈为流动相,梯度洗脱,检测波长为260 nm,... 详细信息

构建生脉饮的高效液相指纹图谱,综合运用化学模式识别技术,对其进行热稳定性评价.通过色谱图的比对分析,筛选出最优的实验条件.采用WondaSil C18(4.6 mm×150 mm, 5μm)作为色谱柱;以0.2%甲酸-乙腈为流动相,梯度洗脱,检测波长为260 nm,流速为1.0 mL/min,柱温为30℃.采用SPSS、SIMCA等数据分析软件进行模式识别.构建18份供试品溶液的指纹图谱,确定了8个共有峰,并指认出4个主要成分,分别是5-羟甲基糠醛、党参炔苷、原儿茶酸和五味子醇甲.指纹图谱的相似度达到0.828及以上.此方法简便,稳定,重复性良好,能有效识别生脉饮中的化学成分,为生脉饮质量控制及热稳定性提供参考.随温度升高,峰面积减小,五味子醇甲的热稳定性降低,且不同厂家的生脉饮中五味子醇甲的热稳定性有所差异,其他成分热稳定性良好.

关键词：生脉饮高效液相色谱指纹图谱热稳定性评价

Accelerating the comprehensive and systematic evaluation of clinical evidence for Chinese medicine using a whole-evidence approach

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Global Health Journal 2019年第2期3卷 33-36页

作者： charlie changli xue Yubo Lyu The China-Australia International Research Centre for Chinese Medicine School of Health and Biomedical SciencesRMIT UniversityP.O.Box 71BundooraVictoria 3083Australia Guangdong Provincial Hospital of Chinese Medicine 111 Dade RoadGuangzhou 510000China

Modern Chinese medicine is rooted in classical literature and the legacies provided by ancient doctors and their patients.It is also grounded in the practices of expert clinicians and increasingly informed by clinical and experimental research.Considering Chinese medicine's stage of international development,a whole-evidence approach is an appropriate method for compiling and synthesizing different types and levels of evidence for specific types of interventions.This approach can be used for the wide range of clinical conditions that Chinese medicine commonly treats.

关键词： Chinese medicine Whole-evidence approach Evidence-based medicine

青蒿查尔酮合成酶(AaCHS)基因家族鉴定及光调控分析

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山西农业大学学报（自然科学版） 2024年第1期44卷 1-13页

作者：薛天源何钰晴夏忙陈美珠戴希刚何思晓朱洵曾长立江汉大学湖北省汉江流域特色生物资源保护开发与利用工程技术研究中心湖北武汉430056

[目的]为了解青蒿(Artemisia annua L.)查尔酮合成酶(chalcone synthase,CHS)基因家族的分子进化特性及其在不同组织部位的表达情况。[方法]从Pfam数据库下载CHS蛋白HMM模型,并使用HUMMER 3.0、Blastp和CD-search鉴定出青蒿基因组中的CH... 详细信息

[目的]为了解青蒿(Artemisia annua L.)查尔酮合成酶(chalcone synthase,CHS)基因家族的分子进化特性及其在不同组织部位的表达情况。[方法]从Pfam数据库下载CHS蛋白HMM模型,并使用HUMMER 3.0、Blastp和CD-search鉴定出青蒿基因组中的CHS基因家族成员。采用TBtools、EXPASy、CELLO v.2.5、MEGA 7.0、MEME、SOPMA、SWISSMODEL和PlantCARE等软件对其氨基酸与碱基序列进行生物信息学分析,通过8个不同组织部位的转录组数据对AaCHS基因家族成员进行表达分析。[结果]青蒿基因组中共有16个AaCHS基因家族成员,蛋白结构分析显示AaCHS蛋白质结构并不稳定,将其分为4个组,基因结构分析显示所有AaCHS基因蛋白均具有外显子,数量为2~4,内含子数量为0~2,其中8个AaCHS基因不具有内含子。启动子顺式作用元件分析表明该基因家族成员启动子上含有大量光响应、植物激素响应元件;CD-search验证结果发现每个AaCHS蛋白均有Chal-sti-synt_N结构域。[结论]AaCHS家族成员表达分析结果表明,16个AaCHS基因在不同组织和光处理下表达不同。GO富集结果得到GO二级分类的生物过程和分子功能,生物过程共富集了80条序列;细胞组分共富集了19条序列,其中二级分类过程细胞质中富集了11条序列,数量最多,与亚细胞定位预测结果一致;推测AaCHS基因在细胞质中调控黄酮类化合物的累积。通过青蒿光调控差异表达分析,推测AaCHS7、AaCHS10在青蒿受到红光光处理中起正向调控作用。

关键词：青蒿 CHS基因家族光调控基因表达差异基因表达

286份甘蓝型油菜种质苗期耐盐碱性综合评价

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植物遗传资源学报 2024年第3期25卷 356-372页

作者：薛天源鲁金春子何思晓余忆陈敬东文静沈金雄傅廷栋曾长立万何平江汉大学生命科学学院/湖北省汉江流域特色生物资源保护开发与利用工程技术研究中心武汉430056 华中农业大学植物科学技术学院/国家油菜工程技术研究中心武汉430070

对286份甘蓝型油菜品系进行苗期耐盐碱性鉴定,通过水培试验,测定盐碱胁迫处理下叶片数、绿叶数、绿叶比、株高、根长、根重等指标,通过盐碱胁迫综合评价值(D值)、极端材料筛选分析、相关性、主成分、隶属函数、频数分析和逐步回归分析法... 详细信息

对286份甘蓝型油菜品系进行苗期耐盐碱性鉴定,通过水培试验,测定盐碱胁迫处理下叶片数、绿叶数、绿叶比、株高、根长、根重等指标,通过盐碱胁迫综合评价值(D值)、极端材料筛选分析、相关性、主成分、隶属函数、频数分析和逐步回归分析法,对不同基因型的油菜种质建立苗期耐盐碱性综合评价模型并筛选出适宜的评价鉴定指标。盐碱胁迫下,叶片数与株高呈负相关,两者的相关系数未达到显著性,其他性状之间均呈正相关并达到了显著或极显著水平。利用主成分分析法将7个耐盐碱指标综合为4个主成分,可代表油菜耐盐碱性88.349%的原始数据信息量。依据4个主成分的相对重要性(权重)进行加权,得到不同基因型的耐盐碱性综合评价值(D值)。结合隶属函数分析和极端材料筛选分析,筛选出4份耐碱盐的甘蓝型油菜种质和4份盐碱敏感种质。逐步回归分析结果表明,在油菜苗期测定其绿叶数、绿叶比、地上重、根长和根重,通过回归方程估算其D值,可以初步判断甘蓝型油菜种质资源耐盐碱性。

关键词：甘蓝型油菜苗期盐碱胁迫种质资源筛选综合评价

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基于循证医学原则的中医干预类临床证据分级系统的构建

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中国中西医结合杂志 2023年第8期43卷 911-915页

作者：刘少南郭新峰吴大嵘 Anthony Lin Zhang charlie changli xue 温泽淮广州中医药大学第二附属医院/广东省中医院广州510120 省部共建中医湿证国家重点实验室(广州中医药大学第二附属医院) 广州510120 School of Health and Biomedical Sciences(RMIT University Melbourne3083)Australia 广州中医药大学科技创新中心广州510405

基于证据推荐等级的评估、制订与评价(GRADE)系统构建符合中医药临床实践特点的中医干预类临床证据分级系统。通过文献调研和核心小组讨论,中医干预类临床证据包括中医古籍、名医经验及现代临床研究证据,采用德尔菲法专家调查,确定该证... 详细信息

基于证据推荐等级的评估、制订与评价(GRADE)系统构建符合中医药临床实践特点的中医干预类临床证据分级系统。通过文献调研和核心小组讨论,中医干预类临床证据包括中医古籍、名医经验及现代临床研究证据,采用德尔菲法专家调查,确定该证据分级系统的范围、评价条目及具体的分级水平。其中,中医古籍干预类证据评价因素包括古籍医案的来源、诊疗内容完整性及古籍的传承性三方面;名医经验证据的评价因素包括名医资质、内容完整性、经验传承性三方面;评价条目采用权重赋分,将古籍及名医经验的证据均分为高、中、低3个等级。中医干预类临床证据分级水平与现代临床研究的GRADE分级一致,分为高、中、低、极低4个水平,旨在为中医临床实践和未来的研究提供参考。构建的中医干预类临床证据分级系统既遵从循证医学原则,又体现中医药临床证据特点,期望能更加全面、客观地评估支撑中医药临床实践的多来源证据。

关键词：中医学干预类临床证据古籍名医经验证据推荐等级的评估、制订与评价系统

盐胁迫对藜蒿扦插枝萌蘖生长及其生理生化特性的影响

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江汉大学学报（自然科学版） 2024年第3期52卷 25-31页

作者：薛天源张千千王宇航何思晓董元火戴希刚曾长立江汉大学生命科学学院湖北省汉江流域特色生物资源保护开发与利用工程技术研究中心湖北武汉430056

以武汉市汉南湘口基地采集的野生种藜蒿和栽培种藜蒿为试验材料,设置NaCl溶液为0、20、40 mmol/L 3个浓度梯度,以无盐胁迫处理的Hoagland营养液作为对照,筛选出藜蒿扦插枝半致死浓度,研究盐胁迫对藜蒿扦插枝萌蘖生长指标和生理指标的影... 详细信息

以武汉市汉南湘口基地采集的野生种藜蒿和栽培种藜蒿为试验材料,设置NaCl溶液为0、20、40 mmol/L 3个浓度梯度,以无盐胁迫处理的Hoagland营养液作为对照,筛选出藜蒿扦插枝半致死浓度,研究盐胁迫对藜蒿扦插枝萌蘖生长指标和生理指标的影响。结果表明:与对照相比,盐胁迫显著降低栽培种和野生种藜蒿扦插枝的存活率,野生种藜蒿扦插枝的盐胁迫半致死浓度为53.40 mmol/L,栽培种藜蒿扦插枝的盐胁迫半致死浓度为50.99 mmol/L。在盐胁迫处理下,野生种藜蒿扦插枝的株高、根长和侧根数受抑制不显著,并呈现出先升后降的趋势,栽培种扦插枝株高、叶片数、根长和侧根数被显著抑制;野生种藜蒿扦插枝在盐胁迫影响下,CAT、POD、APX、SOD活性均显著提高,MDA与脯氨酸含量呈现先降后升的趋势;而栽培种藜蒿扦插枝随着盐浓度的上升,CAT、POD、APX、SOD的活性显著增强,MDA和脯氨酸含量也显著提高;野生种藜蒿扦插枝抗氧化酶(CAT、POD、SOD)活性均低于栽培种。由此可以推测栽培种藜蒿扦插枝应对盐胁迫伤害更大,野生种藜蒿扦插枝耐盐性更强。

关键词：藜蒿盐胁迫扦插枝生理指标 NaCl溶液

Synthesis of 3D ordered macroporous indium tin oxide using polymer colloidal crystal template

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Science China(Technological Sciences) 2006年第5期49卷 537-546页

作者： ZHANG xue'ao MAN Yahui WANG Jianfang LIU changli WU Wenjian College of Aerospace and Materials Engineering National University of Defense Technology Changsha 410073 China College of Aerospace and Materials Engineering National University of Defense Technology Changsha 410073 China College of Aerospace and Materials Engineering National University of Defense Technology Changsha 410073 China College of Aerospace and Materials Engineering National University of Defense Technology Changsha 410073 China College of Aerospace and Materials Engineering National University of Defense Technology Changsha 410073 China

Three-dimensional (3D) ordered macroporous indium tin oxide (ITO) is pre- pared using a polymer colloidal crystal template that is formed by self-assembly of the monodisperse poly(methyl methacrylate) (PMMA) microspheres. The morphologies and BET surface area of the macroporous material is examined by scanning electron micro- scope, transmission electron microscopy and N2 adsorption/desorption. Results indicate that the macroporous material has highly ordered arrays of the uniform pores replicated from the PMMA colloidal crystal template when the polymer colloidal crystal template is removed by calcinations at 500℃. The pore diameter (about 450 nm) of macroporous ITO slightly shrank to the PMMA microspheres. The BET surface area and pore volume of the macroporous material are 389 m2·g-1 and 0.36 cm3·g-1, respectively. Moreover, the macroporous ITO, containing 5 mol% Sn and after annealing under vacuum, shows the minimum resistivity of ρ = 8.2×10-3 Ω· cm. The conductive mechanism of macroporous ITO is discussed, and it is believed that the oxygen vacancies are the major factor for excellent electrical properties.

关键词： template synthesis, polymer colloidal crystal, indium tin oxide, three-dimensional order, macroporous material.