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A cellulose-based lithium-ion battery separator with regulated ionic transport and high thermal stability for extreme environments

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Nano Research 2025年第1期18卷 315-322页

作者： Kun-Peng Yang Song Xie Zi-Meng han Hao-Cheng Liu Chong-han Yin Wen-Bin Sun Zhang-Chi Ling Huai-Bin Yang De-han Li Qing-Fang guan Shu-Hong Yu Department of Chemistry New Cornerstone Science LaboratoryInstitute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

Separators play a critical role in lithium-ion ***,the restrictions of thermal stability and inferior electrical performance in commercial polyolefin separators significantly limit their applications under harsh ***,we report a cellulose-assisted self-assembly strategy to construct a cellulose-based separator massively and *** an ultrahigh ionic conductivity in electrolytes of 3.7 mS·cm^(-1) and the ability to regulate ion transport,the obtained separator is a promising alternative for high-performance lithium-ion *** addition,integrated with high thermal stability,the cellulose-based separator endows batteries with high safety at high temperatures,greatly expanding the application scenarios of energy storage devices in extreme environments.

关键词： lithium-ion batteries bio-inspired materials battery separators cellulose nanofiber ultrahigh ionic conductivity high safety

ALOXE3基因突变致常染色体隐性先天性鱼鳞病一例

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中国麻风皮肤病杂志 2025年第1期41卷 9-14页

作者：韩春雨韩建文内蒙古医科大学附属医院内蒙古呼和浩特010000

目的:明确一例常染色体隐性鱼鳞病基因突变及0.5%神经酰胺乳膏治疗效果。方法:收集先证者的临床资料,提取先证者及其亲属外周血DNA,采用序列捕获技术对相关基因进行高通量测序,并对其变异位点进行一代验证。明确诊断后给予先证者外用0.5... 详细信息

目的:明确一例常染色体隐性鱼鳞病基因突变及0.5%神经酰胺乳膏治疗效果。方法:收集先证者的临床资料,提取先证者及其亲属外周血DNA,采用序列捕获技术对相关基因进行高通量测序,并对其变异位点进行一代验证。明确诊断后给予先证者外用0.5%神经酰胺乳膏治疗,并随访10个月。结果:先证者皮损组织病理符合鱼鳞病病理改变,全基因组外显子测序及Sanger测序验证发现先证者ALOXE3基因存在复合杂合突变(错义变异c.1208A>g:p.H403R和一个移码变异c.102dup:p.K35Qfs^(*)29)。先证者的母亲(错义变异c.1208A>g:p.H403R)和父亲(移码变异c.102dup:p.K35Qfs^(*)29)分别是单个突变的携带者。给予外用0.5%神经酰胺乳膏治疗10个月,全身皮肤干燥及褐色鳞屑得到明显改善。结论:ALOXE3基因的复合杂合突变可能是该常染色体隐性鱼鳞病患者的病因。0.5%神经酰胺乳膏治疗可取得良好效果。

关键词：常染色体隐性先天性鱼鳞病 ALOXE3基因复合杂合突变神经酰胺乳膏

Is the Double giant Dipole Resonance Process Responsible for Alpha Emission in Ternary Fission?

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Chinese Physics Letters 2001年第11期18卷 1454-1456页

作者： han Hong-Yin WAND Yi-Hua g.Mouze China Institute of Atomic Energy P.O.Box 275(46)Beijing 102413 Facultédes Sciences 06108 Nice Cedex 2France

The Monte Carlo program built on the double giant dipole resonance model proposed by Mouze et al. [Nuovo Cimento A 110(1997)1097] was employed to calculate the energy spectrum of alpha particles emitted in the spontaneous ternary fission of 252Cf. It has been found that in the case of the zero orbital angular momentum of alpha particles in the alpha decay of the fragments, the measured alpha spectrum can be reproduced approximately by the model without any adjustable parameter.

关键词： spectrum Ternary momentum

Recent progress in 2D materials for flexible supercapacitors

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Journal of Energy Chemistry 2018年第1期27卷 57-72页

作者： Yan han Yu ge Yunfeng Chao Caiyun Wang gordon g.Wallace Energy&Materials Engineering Centre College of Physics and Materials Science.Tianjin Normal UniversityTianjin 300387.China ARC Centre of Excellence for Electromaterials Science Intelligent Polymer Research InstituteUniversity of Wollongong.NSW 2500.Australia

High performance supercapacitors coupled with mechanical flexibility are needed to drive flexible and wearable electronics that have anesthetic appeal and multi-functionality. Two dimensional（2D） materials have attracted attention owing to their unique physicochemical and electrochemical properties, in addition to their ability to form hetero-structures with other nanomaterials further improving mechanical and electrochemical properties. After a brief introduction of supercapacitors and 2D materials, recent progress on flexible supercapacitors using 2D materials is reviewed. Here we provide insights into the structure–property relationships of flexible electrodes, in particular free-standing films. We also present our perspectives on the development of flexible supercapacitors.

关键词： 2D materials Flexible supercapacitors graphene Molybdenum disulfide MXenes

师范生职业使命感对学习投入的影响研究——基于有调节的中介效应分析

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东北师大学报（哲学社会科学版） 2025年第1期 71-80页

作者：梁红梅王梦寒东北师范大学教育学部吉林长春130024

本研究以自我决定理论与职业生涯建构理论为基础,以80536名师范生群体为研究对象,采用职业认同量表、职业目标量表、学习投入量表以及职业使命感量表,探讨师范生职业使命感与其学习投入之间的关系。结果表明:在控制性别、年级、学校类... 详细信息

本研究以自我决定理论与职业生涯建构理论为基础,以80536名师范生群体为研究对象,采用职业认同量表、职业目标量表、学习投入量表以及职业使命感量表,探讨师范生职业使命感与其学习投入之间的关系。结果表明:在控制性别、年级、学校类型以及身份的基础上,师范生职业使命感对学习投入具有显著正向影响;职业认同在职业使命感与学习投入之间起到部分中介作用;职业目标调节了职业使命感通过职业认同影响师范生学习投入的中介过程的前半段路径,并且在职业使命感与学习投入之间也起到调节作用。研究结果揭示了在师范生群体之中,职业目标、职业认同、职业使命感与学习投入四个变量之间的作用机理,为增强师范生对于教师身份的认同感,提升其职业使命感以及在校期间的学习投入奠定基础,也为高校培养师范生人才、创建高素质教师队伍提供参考依据。

关键词：师范生职业使命感学习投入职业认同职业目标

[Construction of a 17 β-estradiol sensor based on a magnetic graphene oxide/aptamer separating material]

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Se pu = Chinese journal of chromatography 2025年第1期43卷 87-95页

作者： Xin-Yu Jin Le-Yuan Chen Ya-Nna Liu Wen-Jing Xie han-Yong Peng State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China. University of Chinese Academy of Sciences Beijing 100049 China. School of Environment Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China.

17-Estradiol (E2) is a natural steroidal estrogen essential for a variety of physiological functions in organisms. However, external E2, which is renowned for its potent biological effects, is also considered to be an endocrine-disrupting compound (EDC) capable of disturbing the normal operation of the endocrine system, even at nanogram-per-liter (ng/L) concentrations. Studies have revealed that medical and livestock wastewater can be contaminated with E2, which poses potential risks to human health. Currently, the primary method for detecting E2 relies on liquid chromatography-mass spectrometry, which is limited with regard to on-site or large-scale sample testing due to instrumental constraints. Herein, we developed a magnetic graphene oxide (MgO)/aptamer separating material. The MgO was synthesized by creating a water-in-oil microemulsion at 90 ℃, an agarose hydrogel to load the FeO nanoparticles, and layered graphene oxide (gO). In contrast to conventional methods, such as chemical co-precipitation and solvothermal approaches, this method is more time-efficient and does not require high temperature or pressure. Moreover, the use of a physical encapsulation technique for enwrapping the FeO nanoparticles and layered gO eliminates the need for chemical modification. This approach reduces the use of harmful chemicals, ensures complete loading, and results in highly efficient encapsulation. The MgO was characterized using Fourier-transform infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM), as well as dynamic light scattering (DLS) and Zeta potential analyses, which revealed that the FeO nanoparticles had been successfully loaded onto the gO to produce MgO particles mainly around 5 μm in size. Additionally, this study demonstrated that the aqueous MgO dispersion is highly stable. This substance was used to develop a fluorescent biosensor that uses a "turn-on" mechanism to rapidly and highly sensitively detect E2. MgO is capable of adsorbing a fl

关键词： 17-estradiol (E2) fluorescence biosensor magnetic graphene oxide (MgO) magnetic solid phase separation

Advances in ethnopharmacology,phytochemistry and pharmacology of Erigerontis Herba and its Chinese medicine prescriptions

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Traditional Medicine Research 2025年第1期10卷 44-61页

作者： Yang Zhou Yuan-Yan Huang Ding-Yue Shang Ying Chen Meng Tian Cheng-Yu Jin Xin Lu Bing-Chun Yan han-Qing Pang Institute of Translational Medicine School of MedicineYangzhou UniversityYangzhou 225009China Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Yangzhou UniversityYangzhou 225009China School of Medicine Nanjing University of Chinese MedicineNanjing 210023China State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal UniversityGuiling 541004China.

Erigerontis Herba(EH),the dried whole plant of Erigeron breviscapus,is well-known for circulating blood,activating meridians to alleviate pain,expelling wind,and clearing away *** has been extensively utilized in southern China for the treatment of stroke hemiplegia,chest stuffiness and pains,rheumatic arthralgia,headache,and *** review focuses on the botany,ethnopharmacology,phytochemistry,pharmacology and toxicity of EH and its related prescriptions to offer new insights for prospective research of *** information about EH was retrieved from ancient records and books,PubMed,China National Knowledge Infrastructure,Chinese Pharmacopoeia,Web of Science,Doctoral and Master’s Theses,and various electronic *** is a member of Compositae family and is mainly grown in southern *** Chinese medicine records that EH has the effects of circulating blood and removing blood stasis,expelling wind,and removing cold,as well as relieving rigidity of muscle and relieving *** now,nearly 200 ingredients have been characterized from EH,including flavonoids,caffeoyls,aromatic acids,coumarins,pentacyclic terpenoids,volatile oil and other *** extracts,EH related prescriptions(Dengzhan Xixin injection,Dengzhan Shengmai capsules,etc.)or compounds(scutellarin,scutellarein,etc.)possessed obvious therapeutic effects of ischemic stroke,cerebral hemorrhage,myocardial infarction,Alzheimer’s disease,diabetes and its complications,gastric cancer,bone,and joint degenerative ***,the major active compound of EH,has been used as a quality *** no obvious toxicity of EH has been *** to its traditional applications,ethnopharmacology,phytochemistry,pharmacology,and toxicity,EH was applied as a valuable herb for clinical application in food and medicine *** several compounds have been shown to possess diverse biological activities,the underlying mechanisms of their actions remain *** fully exploi

关键词： Erigeron breviscapus traditional applications ethnopharmacology phytochemistry pharmacology

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干细胞的趋电性迁移及机制

中国组织工程研究 2025年第23期29卷 4984-4992页

作者：韩芳舒晴贾绍辉田峻武汉体育学院运动医学院湖北省武汉市430079 武汉大学中南医院骨科康复科湖北省武汉市430071

背景:随着对干细胞技术研究的深入,如何使其准确归巢成为临床应用中的一大难题。除药物和趋化因子等信号的诱导外,电场也被广泛应用于指导干细胞的定向迁移,并可增强其迁移速度和定向性。目的:旨在分析总结电场对干细胞迁移特性的影响,... 详细信息

背景:随着对干细胞技术研究的深入,如何使其准确归巢成为临床应用中的一大难题。除药物和趋化因子等信号的诱导外,电场也被广泛应用于指导干细胞的定向迁移,并可增强其迁移速度和定向性。目的:旨在分析总结电场对干细胞迁移特性的影响,同时综述可能的作用机制。方法:通过检索Pub Med和中国知网数据库,收集截至2024年3月的相关文献,英文检索词:“stem cells,direct current electric field,pulsed electric field,migration,electric field device,mechanism”;中文检索词:“干细胞,直流电场,脉冲电场,迁移,电场装置,机制”。排除不能获取全文和与主题无关的文献。结果与结论:根据筛选要求共纳入58篇文献,包括中文文献15篇及英文文献43篇。文献以脂肪间充质干细胞、骨髓间充质干细胞、神经干细胞、表皮干细胞、人胚胎干细胞和人诱导性多功能干细胞为研究对象,在迁移装置中研究电场的不同参数对上述干细胞迁移的影响及其机制。(1)电场作为一种简单、无创且稳定的干预方式在指导干细胞定向迁移的过程中起着积极作用;(2)不同类型的干细胞发生趋电性迁移的方向不同,同时大部分干细胞的迁移速度和定向性是随着电场强度增加而增加的;(3)不同的电场装置在观测干细胞迁移时的侧重点不同,可根据实验目的而择优选择相关装置;(4)不同干细胞趋电性迁移的机制不完全相同,多数干细胞迁移过程中有MAPK通路、ROCK活化以及PI3K功能的参与,同时还有其他蛋白质复合物与信号通路参与调控该过程;(5)除电场参数不同之外,细胞本身的衰老情况和培养环境也会对趋电性迁移的结果产生影响。总而言之,电场作为一种影响干细胞迁移特性的重要信号,与其他新兴材料结合在组织工程应用中展现出了一定的潜力,有望在指导干细胞归巢方面发挥更加重要的作用,促进骨组织再生和修复以及神经系统、自身免疫系统以及肿瘤等疾病的研究取得更大的突破。

关键词：干细胞电场趋电性迁移机制归巢效应物理因子电场装置细胞衰老培养环境

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并网逆变器惯性特性与提升策略研究

河南理工大学学报（自然科学版） 2025年第1期44卷 134-144页

作者：李继方韩爱山华北水利水电大学电气工程学院河南郑州450003

目的为解决当前大规模新能源发电并网后电力系统低惯量运行的问题,方法对并网逆变器惯性特性进行分析,并对提升并网逆变器惯性水平的方法进行研究。首先分析电力系统中惯性的本质,推导出并网逆变器惯性水平与自身器件参数的关系,利用... 详细信息

目的为解决当前大规模新能源发电并网后电力系统低惯量运行的问题,方法对并网逆变器惯性特性进行分析,并对提升并网逆变器惯性水平的方法进行研究。首先分析电力系统中惯性的本质,推导出并网逆变器惯性水平与自身器件参数的关系,利用根轨迹法绘出以直流侧电容为变量的直流电压控制环根轨迹,结合根轨迹和不同电网工况场景对逆变器惯性水平的需求优化直流侧电容取值;然后在并网逆变器直流侧电压控制环中引入频率反馈环节,提出一种改进的逆变器直流侧电压控制策略和逆变器调制策略,进而提升并网逆变器的瞬时惯量水平,使直流侧电容根据电网频率波动情况进行充放电,抑制电网频率瞬时变化率;最后,使用MATLAB/Simulink搭建仿真平台对所提惯性提升策略进行验证。结果结果表明,当直流侧电容取0.4 F,虚拟惯性时间常数为5 s时,与未使用本文所提控制策略相比,本文策略的系统频率跌落最大偏移量减小了0.11 Hz,平均跌落速率减小了0.035 Hz/s。结论所提策略能有效提升并网逆变器惯性水平,抑制电网频率瞬时变化。

关键词：电力系统逆变器频率稳定惯性电容电压电压控制