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Surface-functionalized hole-selective monolayer for high efficiency single-junction wide-bandgap and monolithic tandem perovskite solar cells

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Journal of Energy Chemistry 2024年第1期88卷 317-326,I0008页

作者： Devthade Vidyasagar Yeonghun yun Jae Yu Cho Hyemin Lee Kyung Won Kim Yong Tae Kim Sung Woong Yang Jina Jung Won chang Choi Seonu Kim Rajendra Kumar Gunasekaran Seok Beom Kang Kwang Heo Dong Hoe Kim Jaeyeong Heo Sangwook Lee School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials Science and Engineering and Optoelectronics Convergence Research CenterChonnam National UniversityGwangju 61186Republic of Korea Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea

Carbazole moiety-based 2PACz([2-(9H-carbazol-9-yl)ethyl]phosphonic acid)self-assembled monolayers(SAMs)are excellent hole-selective contact(HSC)materials with abilities to excel the charge-transferdynamics of perovskite solar cells(PSCs).Herein,we report a facile but powerful method to functionalize the surface of 2PACz-SAM,by which reproducible,highly stable,high-efficiency wide-bandgap PSCs can be obtained.The 2PACz surface treatment with various donor number solvents improves assembly of 2PACz-SAM and leave residual surface-bound solvent molecules on 2PACz-SAM,which increases perovskite grain size,retards halide segregation,and accelerates hole extraction.The surface functionalization achieves a high power conversion efficiency(PCE)of 17.62%for a single-junction wide-bandgap(~1.77 e V)PSC.We also demonstrate a monolithic all-perovskite tandem solar cell using surfaceengineered HSC,showing high PCE of 24.66%with large open-circuit voltage of 2.008 V and high fillfactor of 81.45%.Our results suggest this simple approach can further improve the tandem device,when coupled with a high-performance narrow-bandgap sub-cell.

关键词： Perovskite solar cells 2PACz Monolithic tandem solar cells Wide bandgap

住院患儿耐碳青霉烯类鲍曼不动杆菌的耐药及生物膜特征分析

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中国当代儿科杂志 2024年第4期26卷 358-364页

作者：李云云刘厚昌王海平杜廷义蒋立昆明市儿童医院/昆明医科大学附属儿童医院检验科云南昆明650100 德宏州人民医院/昆明医科大学附属德宏医院检验科云南芒市678400

目的分析住院患儿临床分离的耐碳青霉烯类鲍曼不动杆菌(carbapenem-resistant Acinetobacter baumannii,CRAB)的分布、耐药及生物膜特征,为住院患儿CRAB感染的防治提供参考。方法通过重复回文序列聚合酶链反应将2019年1月—2022年12月... 详细信息

目的分析住院患儿临床分离的耐碳青霉烯类鲍曼不动杆菌(carbapenem-resistant Acinetobacter baumannii,CRAB)的分布、耐药及生物膜特征,为住院患儿CRAB感染的防治提供参考。方法通过重复回文序列聚合酶链反应将2019年1月—2022年12月分离的48株CRAB分为流行株及散发株,比较这两类菌株耐药及生物膜表型及基因携带情况。结果22株流行株及26株散发株均表现为产D类碳青霉烯酶或产结合下调膜孔蛋白的广谱β-内酰胺酶,且均携带VIM、OXA-23、OXA-51基因。散发株生物膜形成能力强于流行株(P<0.05)。流行株及散发株中均检出生物膜相关Bap、bfs、OmpA、CsuE、intI1基因,其中intI1基因在流行株中的检出率高于散发株(P<0.05)。结论CRAB菌株在医院存在定植,散发株有较强的生物膜形成能力,具备在医院环境中形成新的克隆传播的可能。因此,有必要持续监测CRAB的流行趋势,预警流行株的分布,以降低住院患儿感染CRAB的风险。

关键词：鲍曼不动杆菌碳青霉烯酶生物膜儿童

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民族传统舞蹈的交流实践与边疆文化建设

北京舞蹈学院学报 2024年第1期 93-99页

作者：林继富常译允中央民族大学北京100081 北京舞蹈学院北京100081

跨境民族有自己的传统舞蹈,呈现出自然生态、生计方式、生活智慧融汇而成的生活传统。传统舞蹈集中表现一个民族内部彼此交往交流实践,蕴含彼此交融的身体记忆,是理解民族民众生活世界、精神世界的重要内容。传统舞蹈文化生命力和社会... 详细信息

跨境民族有自己的传统舞蹈,呈现出自然生态、生计方式、生活智慧融汇而成的生活传统。传统舞蹈集中表现一个民族内部彼此交往交流实践,蕴含彼此交融的身体记忆,是理解民族民众生活世界、精神世界的重要内容。传统舞蹈文化生命力和社会感召力,是维系一个民族和谐关系的动力资源,成为建设和谐边疆,维护边疆社会团结稳定的文化堡垒。

关键词：传统舞蹈非遗交流交往交融和谐边疆

Glucose-mediated mitochondrial reprogramming by cholesterol export at TM4SF5-enriched mitochondria-lysosome contact sites

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Cancer Communications 2024年第1期44卷 47-75页

作者： Ji Eon Kim So-Young Park Chulhwan Kwak Yoonji Lee Dae-Geun Song Jae Woo Jung Haesong Lee Eun-Ae Shin Yangie Pinanga Kyung-hee Pyo Eun Hae Lee Wonsik Kim Soyeon Kim chang-Duck Jun Jeanho yun Sun Choi Hyun-Woo Rhee Kwang-Hyeon Liu Jung Weon Lee Department of Pharmacy College of PharmacySeoul National UniversitySeoulRepublic of Korea Research Institute of Pharmaceutical Sciences College of PharmacySeoul National UniversitySeoulRepublic of Korea BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit College of Pharmacy and Research Institute of Pharmaceutical SciencesKyungpook National UniversityDaeguRepublic of Korea Department of Chemistry Seoul National UniversitySeoulRepublic of Korea College of Pharmacy Chung-Ang UniversitySeoulRepublic of Korea Natural Product Informatics Research Center Korea Institute of Science and Technology(KIST)Gangneung-siGangwon-doRepublic of Korea School of Life Sciences Gwangju Institute of Science and Technology(GIST)GwangjuRepublic of Korea Department of Biochemistry College of MedicineDong-A UniversityBusanRepublic of Korea Global AI Drug Discovery Center College of Pharmacy and Graduate School of Pharmaceutical SciencesEwha Womans UniversitySeoulRepublic of Korea Interdisciplinary Program in Genetic Engineering Seoul National UniversitySeoulRepublic of Korea

Background:Transmembrane 4 L six family member 5(TM4SF5)translocates subcellularly and functions metabolically,although it is unclear how intracellu-lar TM4SF5 translocation is linked to metabolic contexts.It is thus of interests to understand how the traffic dynamics of TM4SF5 to subcellular endosomal membranes are correlated to regulatory roles of metabolisms.Methods:Here,we explored the metabolic significance of TM4SF5 localization at mitochondria-lysosome contact sites(MLCSs),using in vitro cells and in vivo animal systems,via approaches by immunofluorescence,proximity labelling based proteomics analysis,organelle reconstitution etc.Results:Upon extracellular glucose repletion following depletion,TM4SF5 became enriched at MLCSs via an interaction between mitochondrial FK506-binding protein 8(FKBP8)and lysosomal TM4SF5.Proximity labeling showed molecular clustering of phospho-dynamic-related protein I(DRP1)and certain mitophagy receptors at TM4SF5-enriched MLCSs,leading to mitochondrial fis-sion and autophagy.TM4SF5 bound NPC intracellular cholesterol transporter 1(NPC1)and free cholesterol,and mediated export of lysosomal cholesterol to mitochondria,leading to impaired oxidative phosphorylation but intact tri-carboxylic acid(TCA)cycle andβ-oxidation.In mouse models,hepatocyte Tm4sf5 promoted mitophagy and cholesterol transport to mitochondria,both with positive relations to liver malignancy.Conclusions:Our findings suggested that TM4SF5-enriched MLCSs regu-late glucose catabolism by facilitating cholesterol export for mitochondrial reprogramming,presumably while hepatocellular carcinogenesis,recapitulating aspects for hepatocellular carcinoma metabolism with mitochondrial repro-gramming to support biomolecule synthesis in addition to glycolytic energetics.

关键词： cholesterol fluorescent imaging glucose catabolism hepatocellular carcinogenesis mem-brane contact sites mitochondria function mitophagy oxidative phosphorylation protein-protein interaction tetraspanin

Engineered human pluripotent stem cell-derived natural killer cells with PD-L1 responsive immunological memory for enhanced immunotherapeutic efficacy

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Bioactive Materials 2023年第9期27卷 168-180页

作者： yun chang Gyuhyung Jin Weichuan Luo Qian Luo Juhyung Jung Sydney N.Hummel Sandra Torregrosa-Allen Bennett D.Elzey Philip S.Low Xiaojun Lance Lian Xiaoping Bao Davidson School of Chemical Engineering Purdue UniversityWest LafayetteIN47907USA Purdue University Institute for Cancer Research West LafayetteIN47907USA Department of Comparative Pathobiology Purdue UniversityWest LafayetteIN 47907USA Department of Chemistry Purdue UniversityWest LafayetteIN47907USA Department of Biomedical Engineering The Huck Institutes of the Life SciencesDepartment of BiologyThe Pennsylvania State UniversityUniversity ParkPA16802USA

Adoptive chimeric antigen receptor(CAR)-engineered natural killer(NK)cells have shown promise in treating various cancers.However,limited immunological memory and access to sufficient numbers of allogenic donor cells have hindered their broader preclinical and clinical applications.Here,we first assess eight different CAR constructs that use an anti-PD-L1 nanobody and/or universal anti-fluorescein(FITC)single-chain variable fragment(scFv)to enhance antigen-specific proliferation and anti-tumor cytotoxicity of NK-92 cells against heterogenous solid tumors.We next genetically engineer human pluripotent stem cells(hPSCs)with optimized CARs and differentiate them into functional dual CAR-NK cells.The tumor microenvironment responsive anti-PD-L1 CAR effectively promoted hPSC-NK cell proliferation and cytotoxicity through antigen-dependent activation of phosphorylated STAT3(pSTAT3)and pSTAT5 signaling pathways via an intracellular truncated IL-2 receptorβ-chain(ΔIL-2Rβ)and STAT3-binding tyrosine-X-X-glutamine(YXXQ)motif.Anti-tumor activities of PD-L1-induced memory-like hPSC-NK cells were further boosted by administering a FITC-folate bi-specific adapter that bridges between a programmable anti-FITC CAR and folate receptor alpha-expressing breast tumor cells.Collectively,our hPSC CAR-NK engineering platform is modular and could constitute a realistic strategy to manufacture off-the-shelf CAR-NK cells with immunological memory-like phenotype for targeted immunotherapy.

关键词： Natural killer cells Human pluripotent stem cells Immunological memory Immunotherapy Chimeric antigen receptor

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中国传统文化对高校教师立德树人的规约

黑龙江高教研究 2024年第5期42卷 1-5页

作者：李长吉安云美云南师范大学云南昆明650500

立德树人作为高校教师的根本任务,有其深厚的中国传统文化基础。在高校教师身份与立德树人内在一致性上,中国传统文化在四个方面给出了回答:立德树人是高校教师职业的天然属性,立德树人是高校教师工作场域内的内在规定,立德树人是高校... 详细信息

立德树人作为高校教师的根本任务,有其深厚的中国传统文化基础。在高校教师身份与立德树人内在一致性上,中国传统文化在四个方面给出了回答:立德树人是高校教师职业的天然属性,立德树人是高校教师工作场域内的内在规定,立德树人是高校教师评价的根本标准,立德树人是高校教师称号的核心内涵。在高校教师如何看待立德树人的价值上,中国传统文化进行了四个方面的指引。

关键词：立德树人高校教师中国传统文化

过氧化氢定期消毒结合持续消毒对口腔综合治疗台水路污染控制的有效性观察

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四川大学学报（医学版） 2024年第1期55卷 217-223页

作者：常婧党芸王春丽李秀娥北京大学口腔医学院·口腔医院第五门诊部国家口腔医学中心国家口腔疾病临床医学研究中心口腔生物材料和数字诊疗装备国家工程研究中心北京100081 北京大学口腔医学院·口腔医院护理部国家口腔医学中心国家口腔疾病临床医学研究中心口腔生物材料和数字诊疗装备国家工程研究中心北京100081

目的观察过氧化氢定期消毒结合持续消毒对国内口腔综合治疗台水路污染控制的有效性,为选择水路消毒措施提供参考依据。方法采用便利抽样法选择某口腔专科医院4台口腔综合治疗台。采用每4周1次的定期消毒结合持续消毒的方式对口腔综合治... 详细信息

目的观察过氧化氢定期消毒结合持续消毒对国内口腔综合治疗台水路污染控制的有效性,为选择水路消毒措施提供参考依据。方法采用便利抽样法选择某口腔专科医院4台口腔综合治疗台。采用每4周1次的定期消毒结合持续消毒的方式对口腔综合治疗台水路进行消毒(口腔综合治疗台停用超3 d则额外增加1次定期消毒)。定期消毒指利用口腔综合治疗台自带的水路消毒装置使过氧化氢复合消毒剂原液(质量体积比为1.4%的过氧化氢)在水路中充盈,浸泡消毒24 h后排空。持续消毒指以质量体积比0.014%过氧化氢溶液作为诊疗用水,并在开诊前用其冲洗水路2 min,每次诊疗结束后用其冲洗水路30 s。研究持续25周,定期消毒7次,其余诊疗时间进行持续消毒。第1次消毒当日未使用消毒液时(基线)和消毒期间采集高速牙科手机和三用枪出水口水样,细菌培养后计算菌落总数和合格率,水样菌落总数≤100 CFU/mL即为合格水样;第1次消毒当日未使用消毒液时(基线)、消毒25周后分别采集1台口腔综合治疗台的高速牙科手机供水管路各1 cm,扫描电镜下观察生物膜形态。结果共采集水样352份,基线水样8份,菌落总数中位数为3140 CFU/mL,消毒后第1日诊疗用水菌落总数中位数为7.5 CFU/mL,消毒前后诊疗用水菌落总数差异有统计学意义(P=0.012);消毒后水样344份,三用枪和高速牙科手机水样菌落总数中位数为11 CFU/mL和11 CFU/mL,菌落总数差异无统计学意义;合格率分别为83.7%(144/172)和82.0%(141/172),合格率差异无统计学意义;消毒第1至9周期间,除第3周外,其余8周诊疗用水合格率均大于80%。在第14周至17周、第18至21周的2个定期消毒周期内,仅前2周合格率保持在80%以上,从第3周开始下降。扫描电镜下观察生物膜形态,基线的生物膜结构致密,有大量细菌混合;消毒25周后,生物膜结构疏松,未见大量细菌留存的连贯性特征。结论过氧化氢定期消毒结合持续消毒的方式,可有效控制口腔综合治疗台水路污染,但需结合实际情况,进一步探讨定期消毒周期及持续消毒时过氧化氢浓度。

关键词：口腔综合治疗台水路过氧化氢消毒

Atom-referenced and stabilized soliton microcomb

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 2-8页

作者： Rui Niu Shuai Wan Tian-Peng Hua Wei-Qiang Wang Zheng-Yu Wang Jin Li Zhu-Bo Wang Ming Li Zhen Shen Yu Robert Sun Shui-Ming Hu Brent ELittle Sai Tak Chu Wei Zhao Guang-Can Guo chang-Ling Zou yun-Feng Xiao Wen-Fu Zhang Chun-Hua Dong State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China University of Chinese Academy of Sciences Beijing 100049China Department of Chemical Physics University of Science and Technology of ChinaHefei 230026China Department of Physics and Materials Science City University of Hong KongHong Kong 999077China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

For the applications of the frequency comb in microresonators,it is essential to obtain a fully frequency-stabilized microcomb laser source.In this study,we present a system for generating a fully atom-referenced stabilized soliton microcomb.The pump light around 1560.48 nm is locked to an ultra-low-expansion(ULE)cavity.This pump light is then frequency-doubled and referenced to the atomic transition of87Rb.The repetition rate of the soliton microcomb is injection-locked to an atomic-clockstabilized radio frequency(RF)source,leading to mHz stabilization at 1 s.As a result,all comb lines have been frequencystabilized based on the atomic reference and the ULE cavity,achieving a very high precision of approximately 18 Hz at 1 s,corresponding to the frequency stability of 9.5×10^(-14).Our approach provides a fully stabilized microcomb experiment scheme with no requirement of f-2f technique,which could be easily implemented and generalized to various photonic platforms,thus paving the way towards the ultraprecise optical sources for high precision spectroscopy.

关键词： microcavity frequency comb dissipative Kerr solitons fully stabilized microcomb

持续推动经济回升向好需要科学处理几方面重要关系

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山西师大学报（社会科学版） 2024年第2期51卷 16-22页

作者：姜长云国家发展和改革委员会产业经济与技术经济研究所北京100038

2023年我国经济在总体上呈现回升向好态势。“经济回升向好”是2023年12月召开的中央经济工作会议的重要关键词。但要持续推动我国经济回升向好,需要科学处理实现经济质的有效提升和量的合理增长、坚持高质量发展和实现高水平安全之间... 详细信息

2023年我国经济在总体上呈现回升向好态势。“经济回升向好”是2023年12月召开的中央经济工作会议的重要关键词。但要持续推动我国经济回升向好,需要科学处理实现经济质的有效提升和量的合理增长、坚持高质量发展和实现高水平安全之间、扩大内需和深化供给侧结构性改革之间的关系,并就今后如何科学处理三方面的关系进行了探讨。必须把坚持高质量发展作为新时代的硬道理,努力营造高质量发展和高水平安全相互成就的发展格局,把扩大内需同深化供给侧结构性改革结合起来。

关键词：中央经济工作会议经济回升向好高质量发展高水平安全扩大内需供给侧结构性改革