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Designing simple non-fused terthiophene-based electron acceptors for efficient organic solar cells

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Journal of Energy Chemistry 2024年第9期96卷 501-508页

作者： Jiayu li Kun li Zhe Mei Yu Chen Qian Xie Chenxu Yu Xuefeng liu Yanqi Wang Yishi Wu Qing liao Cunbin An Hongbing Fu Beijing Key Laboratory for Optical Materials and Photonic Devices Department of ChemistryCapital Normal UniversityBeijing 100048China Beijing Synchrotron Radiation Laboratory Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China

Low-cost photovoltaic materials are essential for realizing large-scale commercial applications of organic solar cells(OSCs).However,highly efficient OSCs based on low-cost photovoltaic materials are scarce due to a deficiency in understanding the structure-property ***,we investigated two low-cost terthiophene-based electron acceptors,namely,3TC8 and 3TEH,with 3,4-bis(octan-3-yloxy)thiophene,differing only in the alkylated *** acceptors exhibit low optical gaps(∼1.43 eV)and possess deep highest occupied molecular orbital(HOMO)levels(∼−5.8 eV).Notably,the single-crystal structure of 3TEH demonstrates highly planar conjugated backbone and strongπ-πstacking between intermolecular terminal groups,attributed to the presence of the bulky alkylated noncovalently conformational *** utilizing both acceptors to fabricate OSCs,the 3TC8-based device exhibited a power conversion efficiency(PCE)of 11.1%,while the 3TEH-based OSC demonstrated an excellent PCE of 14.4%.This PCE is the highest among OSCs based on terthiophene-containing electron *** results offer a new strategy for designing low-cost electron acceptors for highly efficient OSCs.

关键词： Organic solarcells Low cost Terthiophene Non-fused electron acceptor

71所医院基于网络实时上报的医院感染病例监测分析

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中国消毒学杂志 2017年第1期34卷 42-44页

作者：赵静雅陈勇韩雪琳陈芳艳田曙光胡小华李承毅韩黎解放军疾病预防控制所北京100071

目的分析医院感染联网监测期间71所医院上报的医院感染病例的感染部位、病原菌和相关危险因素分布情况。方法利用医院感染监测网络信息平台对实时上报的医院感染病例进行审核分析。结果 2014年3月1日-12月31日期间,71所医院报告13 413... 详细信息

目的分析医院感染联网监测期间71所医院上报的医院感染病例的感染部位、病原菌和相关危险因素分布情况。方法利用医院感染监测网络信息平台对实时上报的医院感染病例进行审核分析。结果 2014年3月1日-12月31日期间,71所医院报告13 413名患者发生医院感染15 824例次,其中居前五位的医院感染诊断为下呼吸道感染(42.40%)、上呼吸道感染(16.44%)、泌尿系统感染(16.01%)、血液系统感染(8.67%)和手术部位感染(6.34%)。报告检出医院感染病原体12 869株,居前五位的分别是铜绿假单胞菌(13.10%)、肺炎克雷伯菌(12.61%)、大肠埃希菌(12.54%)、鲍曼不动杆菌(11.49%)和金黄色葡萄球菌(7.69%)。留置导尿、动静脉插管、胃管鼻饲、手术和使用呼吸机是患者接受相关治疗因素的前五位。结论联网监测实时上报的医院感染病例的基本特征与我国其他医院感染监测网的监测数据基本吻合,能够反映参与医院的主要医院感染病例特征,说明利用信息技术手段以实时自动推送形式进行医院感染病例监测是准确可行的。

关键词：医院感染监测感染诊断病原体治疗因素

Comprehensive understanding of glioblastoma molecular phenotypes:classification,characteristics,and transition

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Cancer Biology & Medicine 2024年第5期21卷 363-381页

作者： Can Xu Pengyu Hou Xiang li Menglin Xiao Ziqi Zhang Ziru li Jianglong Xu Guoming liu Yanli Tan Chuan Fang School of Clinical Medicine Hebei UniversityDepartment of NeurosurgeryAffiliated Hospital of Hebei UniversityBaoding 07100China Hebei Key Laboratory of Precise Diagnosis and Treatment of Glioma Baoding 071000China School of Basic Medical Sciences Hebei UniversityBaoding 07100China Department of Pathology Affiliated Hospital of Hebei UniversityBaoding 07100China

Among central nervous system-associated malignancies,glioblastoma(GBM)is the most common and has the highest mortality *** high heterogeneity of GBM cell types and the complex tumor microenvironment frequently lead to tumor recurrence and sudden relapse in patients treated with *** precision medicine,research on GBM treatment is increasingly focusing on molecular subtyping to precisely characterize the cellular and molecular heterogeneity,as well as the refractory nature of GBM toward *** understanding of the different molecular expression patterns of GBM subtypes is *** have recently proposed tetra fractional or tripartite methods for detecting GBM molecular *** various molecular subtypes of GBM show significant differences in gene expression patterns and biological *** subtypes also exhibit high plasticity in their regulatory pathways,oncogene expression,tumor microenvironment alterations,and differential responses to standard ***,we summarize the current molecular typing scheme of GBM and the major molecular/genetic characteristics of each ***,we review the mesenchymal transition mechanisms of GBM under various regulators.

关键词： Glioblastoma molecular phenotype classification characteristic mesenchymal transition

ILF3 safeguards telomeres from aberrant homologous recombination as a telomeric R-loop reader

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Protein & Cell 2024年第7期15卷 493-511页

作者： Chuanle Wang Yan huang Yue Yang Ruofei li Yingying li Hongxin Qiu Jiali Wu Guang Shi Wenbin Ma Zhou Songyang MOE Key Laboratory of Gene Function and Regulation State Key Laboratory of Biocontrol and Guangzhou Key Laboratory of Healthy AgingSchool of LifesciencesSun Yat-sen UniversityGuangzhou 510275China Department of Oncology Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510275China Department of Nephrology The First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China

Telomeres are specialized structures at the ends of linear chromosomes that protect genome *** telomeric repeat-containing RNA(TERRA)that is transcribed from subtelomeric regions can invade into double-stranded DNA regions and form RNA:DNA hybrid-containing structure called *** tumor cells,R-loop formation is closely linked to gene expression and the alternative lengthening of telomeres(ALT)*** R-loops can cause stalled replication forks and telomere ***,how R-loops are recognized and regulated,particularly at telomeres,is not well *** discovered that ILF3 selectively associates with telomeric R-loops and safeguards telomeres from abnormal homologous *** out ILF3 results in excessive R-loops at telomeres and triggers telomeric DNA damage *** addition,ILF3 deficiency disrupts telomere homeostasis and causes abnormalities in the ALT *** the proximity-dependent biotin identification(BioID)technology,we mapped the ILF3 interactome and discovered that ILF3 could interact with several DNA/RNA helicases,including ***,ILF3 may aid in the resolution of telomeric R-loops through its interaction with *** findings suggest that ILF3 may function as a reader of telomeric R-loops,helping to prevent abnormal homologous recombination and maintain telomere homeostasis.

关键词： ILF3 RNA:DNA hybrids telomeric R-loops homologous recombination telomeric DNA damage responses

Analysis of the joint detection capability of the SMILE satellite and EISCAT-3D radar

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Earth and Planetary Physics 2024年第1期8卷 299-306页

作者： JiaoJiao Zhang TianRan Sun XiZheng Yu Dalin li Hang li JiaQi Guo Zonghua Ding Tao Chen Jian Wu Chi Wang State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China Key Laboratory of Solar Activity and Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 101408China Key Laboratory of Electronics and Information Technology for Space Systems Chinese Academy of SciencesBeijing 100190China China Research Institute of Radio-wave Propagation Qingdao 266075China

The Solar wind Magnetosphere Ionosphere link Explorer(SMILE)satellite is a small magnetosphere–ionosphere link explorer developed cooperatively between China and *** pioneers the use of X-ray imaging technology to perform large-scale imaging of the Earth’s magnetosheath and polar cusp *** uses a high-precision ultraviolet imager to image the overall configuration of the aurora and monitor changes in the source of solar wind in real time,using in situ detection instruments to improve human understanding of the relationship between solar activity and changes in the Earth’s magnetic *** SMILE satellite is scheduled to launch in *** European Incoherent Scatter Sciences Association(EISCAT)-3D radar is a new generation of European incoherent scatter radar constructed by EISCAT and is the most advanced ground-based ionospheric experimental device in the high-latitude polar *** has multibeam and multidirectional quasi-real-time three-dimensional(3D)imaging capabilities,continuous monitoring and operation capabilities,and multiple-baseline interferometry *** detection by the SMILE satellite and the EISCAT-3D radar is of great significance for revealing the coupling process of the solar wind–magnetosphere–***,we performed an analysis of the joint detection capability of the SMILE satellite and EISCAT-3D,analyzed the period during which the two can perform joint detection,and defined the key scientific problems that can be solved by joint *** addition,we developed Web-based software to search for and visualize the joint detection period of the SMILE satellite and EISCAT-3D radar,which lays the foundation for subsequent joint detection experiments and scientific research.

关键词： Solar wind Magnetosphere Ionosphere link Explorer(SMILE)satellite European Incoherent Scatter Sciences Association(EISCAT)-3D radar joint detection

Degradation and biocompatibility of one-step electrodeposited magnesium thioctic acid/magnesium hydroxide hybrid coatings on ZE21B alloys for cardiovascular stents

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Journal of Magnesium and Alloys 2024年第1期12卷 120-138页

作者： Zhao-Qi Zhang Bing-Zhi li Pei-Duo Tong Shao-Kang Guan li Wang Zheng-Hui Qiu Cun-Guo lin Rong-Chang Zeng School of Material Science and Engineering&Henan Key Laboratory of Advanced Magnesium Alloy&Key Laboratory of Materials Processing and Mold Technology(Ministry of Education) Zhengzhou University100 Science RoadZhengzhou 450001China State Key Laboratory for Marine Corrosion and Protection Luoyang Ship Material Research InstituteQingdao 266101China Corrosion Laboratory for light Metals College of Material Science and EngineeringShandong University of Science and TechnologyQingdao 266590China

Constructing a functional hybrid coating appears to be a promising strategy for addressing the poor corrosion resistance and insufficient endothelialization of Mg-based ***,the steps for preparing composite coatings are usually complicated and ***,a novel composite coating,composed of bioactive magnesium thioctic acid(MTA)layer formed by deposition and corrosion-resistant magnesium hydroxide(Mg(OH)_(2))layer grown in situ,is simply fabricated on ZE21B alloys via one-step *** electron microscopy(SEM)shows that the electrodeposited coating has a compact and uniform *** the high adhesion of the MTA/Mg(OH)_(2)hybrid coating is also confirmed by the micro-scratch *** test,scanning kelvin probe(SKP),and hydrogen evolution measurement indicate that the hybrid coating effectively reduces the degradation rate of Mg *** experiment and cell culture trial detect that the composite coating is of fine ***,the preparation mechanism of MTA/Mg(OH)_(2)hybrid coatings is discussed and *** coating shows a great potential application for cardiovascular stents.

关键词： Magnesium alloy Corrosion resistance Hybrid coating Endothelialization Biocompatibility

Residual alkali-evoked cross-linked polymer layer for anti-air-sensitivity liNi_(0.89)Co_(0.06)Mn_(0.05)O_(2)cathode

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Journal of Energy Chemistry 2024年第5期92卷 450-458页

作者： Chao Zhao Xuebao li Yun Zhao Jingjing He Yuanpeng Cao Wei Luo Ding Wang Jianguo Duan Xianshu Wang Baohua li National and Local Joint Engineering Research Center of lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093YunnanChina School of Materials Science and Engineering Central South UniversityChangsha 410083HunanChina Institute of Materials Research Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055Guangdong China City College Kunming University of Science and TechnologyKunming 650051YunnanChina

High-energy density lithium-ion batteries(liBs)with layered high-nickel oxide cathodes(liNi_(x)Co_(y)Mn_(1-x-y)O_(2),x≥0.8)show great promise in consumer electronics and vehicular ***,liNi_(x)Co_(y)Mn_(1-x-y)O_(2)faces challenges related to capacity decay caused by residual alkalis owing to high sensitivity to *** address this issue,we propose a hazardous substances upcycling method that fundamentally mitigates alkali content and concurrently induces the emergence of an anti-air-sensitive layer on the cathode *** the neutralization of polyacrylic acid(PAA)with residual alkalis and then coupling it with 3-aminopropyl triethoxysilane(KH550),a stable and ion-conductive cross-linked polymer layer is in situ integrated into the liNi_(0.89)Co_(0.06)Mn_(0.05)O_(2)(NCM)*** characterization and measurements demonstrate its *** NCM material exhibits impressive cycling performance,retaining 88.4%of its capacity after 200 cycles at 5 C and achieving an extraordinary specific capacity of 170.0 mA h g^(-1) at 10 ***,this layer on the NCM efficiently suppresses unfavorable phase transitions,severe electrolyte degradation,and CO_(2)gas evolution,while maintaining commendable resistance to air *** surface modification strategy shows widespread potential for creating air-stable liNi_(x)Co_(y)Mn_(1-x-y)O_(2)cathodes,thereby advancing high-performance liBs.

关键词： lithium-ion batteries Nickel-rich layered cathode Residual alkalis Cross-linked polyme rmodification Airsensitivity

TiO_(2)-Fe_(2)TiO_(5)heterostructure hollow spheres enable high-performance lithium-sulfur batteries via interfacial engineering

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Rare Metals 2024年第8期43卷 4006-4012页

作者： Kai-Tao liu Hong-Qiang Wang Zhuo Chen Shi-lin Zhang Ying-Ying Song Fang liu Qiao-ling li Jiao li School of Materials Science and Engineering Shandong University of TechnologyZibo 255049China College of Chemistry&Environmental Science Hebei UniversityBaoding 071002China School of Chemical Engineering Faculty of SciencesEngineering and TechnologyUniversity of AdelaideAdelaide 5005Australia School of Materials Science and Engineering Hebei University of TechnologyTianjin 300130China

The shuttle effect of lithium polysulfides between sulfur cathode and lithium anode is a notorious problem in the commercial application of lithium-sulfur ***,heterostructured TiO_(2)-Fe_(2)TiO_(5)hollow spheres were ... 详细信息

关键词： lithium sulfide (5)

Insights into the pre-game legacy of the Paris 2024 Summer Olympics

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The Innovation 2024年第5期5卷 7-8页

作者： Haibin Xu Yiyi Jiang Yan Fang Tian li Ning Wang Xujia huang Hailong li School of Leisure Sports and Tourism Beijing Sport UniversityBeijing 100084China Beijing Winter Olympics Culture and Ice&Snow Sports Development Research Base Beijing 100084China Alberta International School of Recreation Sportand Tourism of Beijing Sport UniversityHainan 572423China

In July 2024,the 33rd Summer Olympic Games will take place in *** the bidding phase for the Paris Olympics,extensive planning was undertaken to explore and utilize the Olympic legacy.1 This article examines the design and distinctive aspects of the Olympic legacy in Paris and summarizes the insights for utilizing legacies in future Games.

关键词： utilize utilizing Summer