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Regulation of excitation energy transfer in Sb-alloyed Cs_(4)MnBi_(2)Cl_(12) perovskites for efficient CO_(2) photoreduction to CO and water oxidation toward H_(2)O_(2)

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Journal of Energy Chemistry 2023年第7期82卷 18-24,I0001页

作者： Haiwen Wei Zhen Li Honglei Wang Yang Yang Pengfei Cheng Peigeng Han ruiling zhang Feng Liu Panwang Zhou Keli Han Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237ShandongChina State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of ScienceDalian 116023LiaoningChina

Lead(Pb)-free halide perovskites have recently attracted increasing attention as potential catalysts for CO_(2) photoreduction to CO due to their potential to capture solar energy and drive catalytic reaction.However,issues of the poor charge transfer still remain one of the main obstacles limiting their performance due to the overwhelming radiative and nonradiative charge-carrier recombination losses.Herein,Pb-free Sb-alloyed all-inorganic quadruple perovskite Cs_(4)Mn(Bi_(1-x)Sb_(x))_(2)Cl_(12)(0≤x≤1)is synthesized as efficient photocatalyst.By Sb alloying,the undesired relaxation of photogenerated electrons from conduction band to emission centers of[MnCl6]^(4-)is greatly suppressed,resulting in a weakened PL emission and enhanced charge transfer for photocatalyst.The ensuing Cs_(4)Mn(Bi_(1-x)Sb_(x))_(2)Cl_(12) photocatalyst accomplishes efficient conversion of CO_(2)into CO,accompanied by a surprising production of H_(2)O_(2),a high valueadded product associated with water oxidation.By optimizing Sb^(3+) concentration,a high CO evolution rate of 35.1μmol g^(-1)h^(-1)is achieved,superior to most other Pb and Pb-free halide perovskites.Our findings provide new insights into the mixed-cation alloying strategies for improved photocatalytic performance of Pb-free perovskites and shed light on the rational design of robust band structure toward efficient energy transfer.

关键词： Pb-free perovskites Energy band modulation Perovskite photocatalysis photocatalytic CO_(2)reduction Water oxidation to H_(2)O_(2)

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Phylogeny and species differentiation of Mollitrichosiphum spp. （Aphididae, Greenideinae） based on mitochondrial CO1 and Cyt b genes

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Current Zoology 2011年第6期57卷 806-815页

作者： ruiling zhang Xiaolei HUANG Liyun JIANG Gexia QIAO Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

Phylogenetic analyses based on mitochondrial genes were conducted to reconstruct species relationships within the aphid genusMollitrichosiphum(Aphididae, Greenideinae). MP and Bayesian analysis results using COI andCyt bdatasets, and combined MP, ML and Bayesian analysis of both were consistent with a morphologically supported monophyly. Subdivision of the genus into two subgenera was strongly supported. Samples of each included species form monophyletic clade, respectively; and the result implied the valid status of related species in this genus. These results suggest some surprising hypotheses regarding the phylogeography of the genus: the uplift of the Tibetan Plateau, reorganization of major river catchments and the isolation of Hainan Island were probably important factors contributing to the diversification of species in this genus.

关键词：细胞色素b基因系统发育分析线粒体基因物种分化蚜虫贝叶斯分析系统地理学物种多样化

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Histone acetylation of the htr3a gene in the prefrontal cortex of Wistar rats regulates ethanol-seeking behavior

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Neural Regeneration Research 2012年第13期7卷 1021-1028页

作者： Yahui Xu Xuebing Liu Xiaojie zhang Guanbai zhang ruiling zhang Tieqiao Liu Wei Hao Mental Health Institute Second Xiangya Hospital Central South University Changsha 410011 Hunan Province China Townsend Family Laboratories Graduate Program in Neuroscience University of British Columbia 2255 Wesbrook Mall Vancouver B. C V6T 1Z3 Canada Second Affiliated Hospital of Xinxiang Medical University Xinxiang 453003 Henan Province China

Previous reports showed that decreased histone deacetylase activity significantly potentiated the rewarding effects of psychostimulants, and that encoding of the 5-HT3 receptor by the htr3a gene was related to ethanol-seeking behavior. However, the effects of a histone deacetylase inhibitor on ethanol-seeking behavior and epigenetic regulation of htr3a mRNA expression after chronic ethanol exposure are not fully understood. Using quantitative reverse transcription-polymerase chain reaction and chromatin immunoprecipitation analysis, we investigated the effects of chronic ethanol exposure and its interaction with a histone deacetylase inhibitor on histone-acetylation-mediated changes in htr3a mRNA expression in the htr3a promoter region. The conditioned place preference procedure was used to evaluate ethanol-seeking behavior. Chronic exposure to ethanol effectively elicited place conditioning. In the prefrontal cortex, the acetylation of H3K9 and htr3a mRNA expression in the htr3a promoter region were significantly higher in the ethanol group than in the saline group. The histone deacetylase inhibitor sodium butyrate potentiated the effects of ethanol on htr3a mRNA expression and enhanced ethanol-induced conditioned place preferences. These results suggest that ethanol upregulates htr3a levels through mechanisms involving H3K9 acetylation, and that histone acetylation may be a therapeutic target for treating ethanol abuse.

关键词： Ethanol seeking chronic ethanol exposure htr3a histone deacetylase histone acetylation sodiumbutyrate neural regeneration

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A new treatment for cognitive disorders related to in utero exposure to alcohol

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Neural Regeneration Research 2013年第18期8卷 1702-1713页

作者： Shuang Li Yan zhang Feng Zhu Bin zhang Jianying Lin Chunyang Xu Wancai Yang Wei Hao ruiling zhang Second Affiliated Hospital Xinxiang Medical University Department of Physiology Xinxiang Medical University First Affiliated Hospital Xinxiang Medical University Department of Immunology Xinxiang Medical University Henan Key Laboratory of Biological Psychiatry Xinxiang Medical University School of Basic Medical Sciences Xinxiang Medical University

Maternal alcohol consumption during pregnancy has detrimental effects on fetal central nervous system development. Maternal alcohol consumption prior to and during pregnancy significantly affects cognitive functions in offspring, which may be related to changes in cyclin-dependent kinase 5 because it is associated with modulation of synaptic plasticity and impaired learning and memory, in this study, we examined adult offspring in a materna~ alcohol consumption model in rats. Y-maze test results showed that in utero exposure to alcohol impairs learning and memory capacities. Cyclin-dependent kinase 5 mRNA and protein expressions in the hippocampus of the offspring were significantly elevated, as assayed by quantitative real-time PCR and reverse transcription-PCR, immunofluorescence, and immuno-precipitation. Our experimental findings strongly suggest that altered cydin-dependent kinase 5 may mediate impaired learning and memory in adult rats that were exposed to alcohol by maternal consumption while in utero.

关键词： neural regeneration neurogenesis pregnancy ethanol hippocampus development offspring learning and memory cyclin-dependent kinase 5 grants-supported paper neuroregeneration

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Damage of hippocampal neurons in rats with chronic alcoholism

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Neural Regeneration Research 2014年第17期9卷 1610-1615页

作者： Ailin Du Hongbo Jiang Lei Xu Na An Hui Liu Yinsheng Li ruiling zhang Second Affiliated Hospital of Xinxiang Medical University Department of Physiology and Neurobiology Xinxiang Medical University Department of Neurology the Third Affiliated Hospital of Xinxiang Medical University Henan Provincial Key Laboratory of Bio-psychiatry

Chronic alcoholism can damage the cytoskeleton and aggravate neurological deficits. However, the effect of chronic alcoholism on hippocampal neurons remains unclear. In this study, a model of chronic alcoholism was established in rats that were fed with 6% alcohol for 42 days. Endogenous hydrogen sulfide content and cystathionine-beta-synthase activity in the hippocampus of rats with chronic alcoholism were significantly increased, while F-actin expression was decreased. Hippocampal neurons in rats with chronic alcoholism appeared to have a fuzzy nuclear mem- brane, mitochondrial edema, and ruptured mitochondrial crista. These findings suggest that chronic alcoholism can cause learning and memory decline in rats, which may be associated with the hydrogen sulfide/cystathionine-beta-synthase system, mitochondrial damage and reduced expression of F-actin.

关键词： nerve regeneration chronic alcoholism hydrogen sulfide cystathionine-beta-synthase learning memory F-actin mitochondria hippocampus NSFC grant neural regeneration

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Modeling and Optimization of Bandwidth Supply Performance for Cloud-Assisted Video Systems under Flash Crowd

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China Communications 2016年第9期13卷 151-162页

作者： Shijie Jia ruiling zhang Youzhong Ma Lujie Zhong Changqiao Xu Central Plains Economic Zone Wisdom Tourism Cooperative Innovation Center Luoyang Normal University Academy of Information Technology Luoyang Normal University School of Computer Science and Technology Wuhan University of Technology Information Engineering College Capital Normal University State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications

The large-scale and sudden video content access such as flash crowds results in huge bandwidth demand,which severely influence user quality of experience and quality of service of video systems.In this paper,we firstly discuss the main reason of generation of flash crowds for video streaming services and analyze key factor for balance recovery between supply and demand of upload bandwidth.We construct two models:bandwidth supply capacity model of video systems and bandwidth demand model of users,which measures usage amount of bandwidth of the cloud.Based on the built models,we further employ a community-based cooperative caching strategy of video resources to promote supply capacity of upload bandwidth of video systems.Extensive tests show how the proposed cooperative caching strategy achieves much better performance results in comparison with original solution.

关键词：带宽需求视频系统性能建模人群闪光优化供给服务质量

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Tuning Exciton Recombination Pathways in Inorganic Bismuth-Based Perovskite for Broadband Emission

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Energy Material Advances 2022年第1期2022卷 251-261页

作者： Ming Shi Bin Yang Siping Liu ruiling zhang Keli Han Can Li Rengui Li State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of ScienceDalian 116023China Institute of Molecular Sciences and Engineering Shandong UniversityQingdao 266237China

Single-component emitters with broadband emission are attractive but challenging for illumination and display applications.The two-dimensional organic-inorganic hybrid perovskites have exhibited outstanding broad emission property due to low electronic dimensionality and strong exciton-phonon coupling.However,few layered all-inorganic lead-free perovskites with broadband emission have been explored,and the explicit mechanism of exciton recombination in them also needs in-depth understanding.Herein,the inorganic bismuth-based perovskite Cs3Bi2Br9 achieves the stable broadband emission under ambient temperature and pressure by tuning the exciton recombination pathways via antimony(Sb)doping,and the photoluminescence quantum yield(PLQY)realizes an enhancement from 2.9%to 15.9%.The photoluminescence excitation(PLE)spectra indicate that the doped Sb introduces newly extrinsic self-trapped states.The incorporation of Sb promotes the transfer of free excitons(FEs)to extrinsic self-trapped excitons(STEs)observed from Sb content-dependent steady-state PL spectra and,meanwhile,reduces the nonradiative recombination of the generated extrinsic STEs,which are primarily responsible for the remarkably enhanced broad emission.Furthermore,femtosecond transient absorption results elucidate a clear exciton dynamics,in which the transition from FEs to STEs might arise through the gradient energy levels,and finally extrinsic STEs at various energy states contribute to the broadband emission.

关键词： perovskite inorganic illumination

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Bismuth doped lead-free two-dimensional tin based halide perovskite single crystals

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Journal of Energy Chemistry 2019年第9期28卷 1-6页

作者： ruiling zhang Xin Mao Pengfei Cheng Yang Yang Songqiu Yang Tuerdi Wumaier Weiqiao Deng Keli Han State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 Liaoning China University of the Chinese Academy of Sciences Beijing 100049 China Department of Physics Xinjiang Institute of EngineeringUrumqi 830091 Xinjiang China

Heterovalent-metal doping is an efficient tool to tune the optoelectronic properties of the famous halide perovskites.Previous studies have focused on the heterovalent-doping in three-dimensional(3D) halide perovskites.However, there is a lack of such doping in two-dimensional perovskites which possess unique optoelectronic properties and improved chemical stability as compared to 3D analogues.Here, we present successful doping of Bismuth into the lattice of lead-free, two-dimensional perovskite PEA2SnBr4 single crystals.Structural characterizations demonstrate that the doped crystals possess identical crystal structure and layered morphology with the pristine one.Intriguingly, we find the PL peak and spectral shape can be tailored by tuning the concentration of Bi dopants.Femtosecond transient absorption spectroscopy is performed to understand the underlying mechanism related to tunable PL behaviors, and a clear picture of the Bismuth-doping impact is provided.

关键词： Heterovalent-metal doping Photoluminescence Self-trapped excitons Femtosecond transient absorption spectra Global analysis fit

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基于倾向性评分匹配分析血管性血友病因子对重症患者发生静脉血栓栓塞症的预测价值

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中华危重病急救医学 2024年第1期36卷 73-77页

作者：岳锦熙万林骏王刚张瑞凌张小冉刘欧亚于晓帆黄青青任宗芳昆明医科大学第二附属医院重症医学科云南昆明650101

目的采用倾向性评分匹配(PSM)分析血管性血友病因子(vWF)对重症监护病房(ICU)患者发生静脉血栓栓塞症(VTE)的预测价值。方法纳入2020年12月至2022年6月昆明医科大学第二附属医院ICU收治的ICU住院时间≥72 h且每日行床旁血管超声筛查的... 详细信息

目的采用倾向性评分匹配(PSM)分析血管性血友病因子(vWF)对重症监护病房(ICU)患者发生静脉血栓栓塞症(VTE)的预测价值。方法纳入2020年12月至2022年6月昆明医科大学第二附属医院ICU收治的ICU住院时间≥72 h且每日行床旁血管超声筛查的患者。收集患者年龄、性别、原发病、慢性合并症等基线资料,以及入ICU前和入ICU 24 h、48 h的凝血指标,包括凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、凝血酶时间(TT)、国际标准化比值(INR)、纤维蛋白原(Fib)、纤维蛋白单体(FM)、vWF、D-二聚体、抗凝血酶Ⅲ(ATⅢ)等。根据是否发生VTE〔VTE诊断:患者每日行床旁血管(双上下肢、内脏静脉)超声筛查,怀疑有血栓者由超声科医生复查确诊或肺动脉造影确诊〕将患者分为VTE组和非VTE组。采用PSM分析方法,以VTE组为基准,对年龄、是否有恶性肿瘤、是否有感染、是否合并糖尿病及入ICU前凝血指标进行1∶1匹配,得到组间协变量均衡的样本。采用多因素Logistic回归分析筛选VTE发生的危险因素;绘制受试者工作特征曲线(ROC曲线),评价vWF对重症患者发生VTE的预测价值。结果共纳入120例患者,其中18例(15.0%)入ICU后72 h内确诊发生VTE,102例(85.0%)在ICU内未发现血栓。PSM前,VTE组与非VTE组患者年龄、性别、合并恶性肿瘤和感染比例及凝血指标差异均有统计学意义。PSM后,成功匹配14对,两组间不平衡的协变量均达到均衡。多因素Logistic回归分析显示,入ICU 48 h vWF是重症患者发生VTE的独立危险因素〔优势比(OR)=1.165,95%可信区间(95%CI)为1.000~1.025,P=0.004〕。ROC曲线分析显示,入ICU 48 h vWF预测重症患者发生VTE的ROC曲线下面积(AUC)为0.782,95%CI为0.618~0.945,P=0.007;当最佳截断值为312.12%时,敏感度为67.7%,特异度为93.0%。结论动态监测vWF有助于判断ICU患者发生VTE,入ICU 48 h vWF对VTE发生有一定预测价值。

关键词：静脉血栓栓塞症血管性血友病因子预测价值倾向性评分匹配

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王书臣治疗铜绿假单胞菌定植的支气管扩张症撷英

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中华中医药杂志 2024年第2期39卷 779-783页

作者：张雯周瑞玲何沂王冰丛晓东樊茂蓉张琼中国中医科学院研究生院北京100700 中国中医科学院西苑医院北京100091

文章总结王书臣教授治疗铜绿假单胞菌定植的支气管扩张症经验。认为铜绿假单胞菌定植的支气管扩张症病机属本虚标实,可从中医“三焦失调,伏毒久羁”角度认识该疾病发生发展过程,提出“祛邪序贯全程,补虚治取脾肾”的治疗原则,以培土生... 详细信息

文章总结王书臣教授治疗铜绿假单胞菌定植的支气管扩张症经验。认为铜绿假单胞菌定植的支气管扩张症病机属本虚标实,可从中医“三焦失调,伏毒久羁”角度认识该疾病发生发展过程,提出“祛邪序贯全程,补虚治取脾肾”的治疗原则,以培土生金、金水相生之法固本培元,善用“清”“透”二法祛邪透毒,并经通利三焦以助邪外出,兼以临证加减,助患者机体气机通畅、水液温化和阴阳平衡,减少铜绿假单胞菌定植的支气管扩张症患者每年急性加重次数,改善生活质量。

关键词：王书臣支气管扩张症铜绿假单胞菌三焦伏毒名医经验清透

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