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Chinese Journal of Catalysis 2022年第7期43卷 1937-1944页

作者： Xiu Qian Yanjiao Wei mengjie sun Ye Han Xiaoli Zhang Jian Tian Minhua Shao School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266590ShandongChina Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Energy Institute and Chinese National Engineering Research Center for Control&Treatment of Heavy Metal PollutionThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina

In this study,TiO_(2) nanosheets(NSs)grown in situ on extremely conductive Ti_(3)C_(2)T_(x) MXene to form TiO_(2)/Ti_(3)C_(2)T_(x) MXene composites with abundant active sites are proposed to effectively achieve elec‐trocatalytic NH_(3) *** transfer can be promoted by Ti_(3)C_(2)T_(x) MXene with high conduc‐***,the TiO_(2) NSs in‐situ formation can not only avoid Ti_(3)C_(2)T_(x) MXene microstacking but also enhance the surface specific area of Ti_(3)C_(2)T_(x) *** TiO_(2)/Ti_(3)C_(2)T_(x) MXene catalyst reach‐es a high Faradaic efϐiciency(FE)of 44.68%at−0.75 V *** and a large NH3 yield of 44.17µg h^(-1) mg^(-1)***−0.95 V,with strong electrochemical durability.15N isotopic labeling experiments imply that the N in the produced NH3 originated from the N2 of the *** calculations were conducted to determine the possible NRR reaction pathways for TiO_(2)/Ti_(3)C_(2)T_(x) MXene *** catalysts combined with other materials have been rationally designed for efficient ammonia production under ambient conditions。

关键词： Electrocatalyst N2 reduction reaction TiO_(2)nanosheet Ti_(3)C_(2)T_(x)MXene In‐situ growth

The Unique Material Properties of Organic-inorganic Halide Perovskites and Their Effects on the Performance of Photovoltaic Devices

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The Unique Material Properties of Organic-inorganic Halide P...

第五届新型太阳能电池学术研讨会

作者： Chunjun Liang Zhiqun He Huimin Zhang mengjie sun Fulin sun Chao Ji Key Laboratory of Luminescence and Optical Information Ministry of EducationSchool of Science Beijing Jiaotong University

The development of organic–inorganic halide perovskite solar cells(PSCs) is very fast recently. It is proved that a large amount of mobile ions exist in organic–inorganic halide perovskites. The accumulated ions at the interface change the band bending of the semiconductor, leading to polarity-switchable photovoltaic devices [1]. The interface charge significantly influences the function and performance of perovskite devices, and affects band bending and thus the photocurrent of the solar cells. Consequently the dynamic process of the interface charge governs the current–voltage hysteresis [2]. We demonstrate EL of perovskite light-emitting devices with two high workfunction electrodes under both forward and reverse biases. It confirms that a large amount of ions accumulate at perovskite/electrode interfaces[3].Organic-inorganic trihalide perovskites exhibit remarkable high-absorption and low-loss properties for solar energy conversion. Calculation from density functional theory indicates charge densities of electrons and holes in the materials are spatially separated, which justify the low recombination rate of the pure iodide perovskite. Chlorine substitution further reduces the overlap of charge densities between the VBM and CBM states, explaining the relatively lower carrier recombination rate of the iodine-chlorine mixed perovskite [4].

关键词： organic–inorganic halide perovskite solar cells ions interface change

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肥大细胞白血病6例并文献复习

中华内科杂志 2024年第10期63卷 996-1000页

作者：朱凤于媛陈春燕段文冰江倩闫睿孙谕韩艳秋张静王欢张秋蓉陈苏宁颜婉惠蔡梦洁张智博尹佳王谦苏州大学附属第一医院江苏省血液研究所国家血液系统疾病临床医学研究中心苏州山东大学齐鲁医院血液科济南北京大学人民医院北京大学血液病研究所北京哈尔滨市第一医院血液病肿瘤研究所哈尔滨苏州大学附属第二医院血液科苏州内蒙古医科大学附属医院血液内科呼和浩特昆山市第一人民医院血液科苏州张家港市第一人民医院血液科苏州

回顾性分析2021年10月至2023年2月苏州大学附属第一医院(中国肥大细胞增多症协作网络)收治或会诊的6例肥大细胞白血病(MCL)患者的临床及实验室检查资料。6例患者中, 男女比为1∶1, 中位年龄54岁(范围29～73岁)。6例均为急性MCL。临床表... 详细信息

回顾性分析2021年10月至2023年2月苏州大学附属第一医院(中国肥大细胞增多症协作网络)收治或会诊的6例肥大细胞白血病(MCL)患者的临床及实验室检查资料。6例患者中, 男女比为1∶1, 中位年龄54岁(范围29～73岁)。6例均为急性MCL。临床表现:低白蛋白血症4例, 乏力3例, 发热、腹部不适、溶骨性病变各2例, 头晕、皮肤潮红、体重减轻各1例。6例均伴脾肿大, 3例伴淋巴结肿大。实验室检查:6例均强表达CD117, 5例表达CD30及CD25, 4例表达CD2。染色体核型分析提示4例为正常核型, 2例为异常核型。6例中4例检测到基因突变。中位血清类胰蛋白酶水平24.9 μg/L(范围20.1～171.9 μg/L)。治疗:2例予包含维奈克拉和阿扎胞苷的方案诱导化疗(其中1例联合阿伐替尼获得部分缓解, 1例联合达沙替尼未缓解), 1例予克拉屈滨诱导化疗后未缓解, 1例予伊马替尼治疗后未缓解, 1例予干扰素联合糖皮质激素治疗后失访, 1例放弃治疗。随访时间1.1～21.7个月, 3例死亡, 2例存活。MCL患者临床表现多样, 总体预后差, 亟需提高临床对此类罕见病例的认知和诊疗水平。

关键词：白血病, 肥大细胞预后系统性肥大细胞增多症靶向治疗

Maize metacaspase inhibits the hypersensitive response induced by autoactive NLR protein Rp1-D21

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Maize metacaspase inhibits the hypersensitive response induc...

中国植物病理学会第十一届全国会员代表大会暨2018年学术年会

作者：栾庆玲 Liu mengjie sun yang Wang Mei Liu Xiaoying Zhu Yuxiu Mao Weichao 王官锋 The Key Laboratory of Plant Cell Engineering and Germplasm Innovation Ministry of EducationCollege of Life ScienceShandong University

Programmed cell death(PCD) plays important roles in plant innate *** disease resistance(R) genes encode nucleotide binding leucine-rich-repeat(NLR) proteins that trigger a rapid localized PCD termed the hypersensitive response(HR) upon pathogen *** maize NLR protein Rpl-D21 derives from an intragenic recombination between two NLRs,Rpl-D and Rpl-dp2,and confers an autoactive HR in the absence of pathogen ***(MC),the distant homolog of caspase in the caspase-like domain(CD) cysteine protease superfamily,is widely distributed in different species and plays important roles in *** maize,MC can be divided into two types,type Ⅰ and type Ⅱ.Phylogenetic analysis showed that eight genes encode type Ⅰ(ZmMC 1-8) and three genes encode type Ⅱ(ZmMC9-11).Both types of MC contain two conserved caspase-like catalytic domains,P20(20 kDa) and P10(10 kDa).Two types of MC differ in their N-terminal pro-domains and the length of the linker between P20 and *** our RNA-seq data,we found that several ZmMC genes are differentially expressed in Rp1-D21 mutant compared to wild *** transiently co-expressed ZmMC and Rpl-D21 in *** and found that type Ⅰ ZmMC1 and ZmMC2 suppress Rp1-D21-mediated HR,while type Ⅱ ZmMC9 has no obvious *** suppression function of ZmMC1 and ZmMC2 is independent of the putative catalytic residues and the N-terminal *** results suggest that two types of MC have different function in regulating NLR-mediated *** molecular mechanism will be further explored.

关键词： NLR Rp1-D21 Metacaspase Hypersensitive response

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晚发现艾滋病病毒感染临床管理专家共识

中国艾滋病性病 2024年第7期30卷 670-682页

作者：吕玮蔡卫平陈耀凯韩孟杰何云李惠琴李凌华卢瑞朝马萍孙丽君孙永涛王辉王汝刚汪宁魏洪霞张彤赵红心赵清霞周莹荃张福杰李太生中国医学科学院北京协和医学院北京协和医院北京100730 广州市第八人民医院广州510440 重庆市公共卫生医疗救治中心重庆400030 中国疾病预防控制中心北京102206 深圳市第三人民医院(南方科技大学第二附属医院) 广东深圳518112 云南省传染病医院昆明650301 广西柳州龙潭医院广西柳州545026 天津市第二人民医院天津300192 首都医科大学附属北京佑安医院北京100069 空军军医大学唐都医院西安710032 大连市公共卫生临床中心辽宁大连116037 南京市第二医院南京210037 首都医科大学附属北京地坛医院北京100015 河南省传染病医院郑州450015 兰州市肺科医院兰州730071

随着联合抗反转录病毒治疗(combination antiretroviral therapy,cART)的进步,全球艾滋病病毒(HIV)新发感染及相关死亡人数已显著下降,但“晚发现”(late presentation,即就诊时伴低CD4细胞计数或艾滋病定义性事件)HIV感染者比例高仍是... 详细信息

随着联合抗反转录病毒治疗(combination antiretroviral therapy,cART)的进步,全球艾滋病病毒(HIV)新发感染及相关死亡人数已显著下降,但“晚发现”(late presentation,即就诊时伴低CD4细胞计数或艾滋病定义性事件)HIV感染者比例高仍是艾滋病防治的重要挑战之一。晚发现HIV感染者临床风险高、管理复杂,且具有较高的传播风险,对达成“三个95%”及终结艾滋病流行目标造成较大挑战。然而,目前国内外均缺乏专门针对这一人群的临床管理规范。因此,中国人体健康科技促进会免疫缺陷监测与转化专业委员会组织领域内专家,根据近年来国内外最新研究证据和临床实践经验,探讨晚发现HIV感染者的定义、临床特征和风险,以及抗病毒治疗策略等临床管理问题,并制定具体推荐意见,旨在为临床工作者提供参考。

关键词：晚发现艾滋病病毒抗病毒治疗快速启动临床管理

Electrolyte and interphase engineering through solvation structure regulation for stable lithium metal batteries

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Chinese Chemical Letters 2023年第12期34卷 401-408页

作者： Hai Su Haikuo Zhang Zifeng Chen mengjie Li Jiwei Zhao Haiyan Xun Jie sun Yunhua Xu School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education)and Tianjin Key Laboratory of Composite and Functional MaterialsTianjin UniversityTianjin 300072China State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

Lithium metal batteries(LMBs)are considered to be one of the most promising high-energy-density battery ***,their practical application in carbonate electrolytes is hampered by lithium dendrite growth,resulting in short cycle ***,an electrolyte regulation strategy is developed to improve the cyclability of LMBs in carbonate electrolytes by introducing LiNO3 using trimethyl phosphate with a slightly higher donor number compared to NO_(3)^(-)as a *** not only allows the formaion of Li^(+)-coordinated NO3 but also achieves the regulation of electrolyte solvation structures,leading to the formation of robust and ion-conductive solid-electrolyte interphase films with inorganic-rich inner and organic-rich outer layers on the Li metal *** a result,high Coulombic efficiency of 99.1%and stable plating/stripping cycling of Li metal anode in LilCu cells were ***,excellent performance was also demonstrated in Li||LiNi_(0.83)Co_(0.11)Mn_(0.06)O_(2)(NCM83)full cells and Cul/NCM83 anodefree cells using high mass-loading *** work provides a simple interphase engineering strategy through regulating the electrolyte solvation structures for high-energy-density LMBs.

关键词： Lithium metal batteries Lithium nitrate Trimethyl phosphate Solvation structures Solid-electrolyte interphases

Effects of surface morphology on the ionic capacitance and performance of perovskite solar cells

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Effects of surface morphology on the ionic capacitance and p...

第五届新型太阳能电池学术研讨会

作者： Chunjun Liang Zhiqun He Hong Liu Qi Song mengjie sun Fulin sun Chao Ji Key Laboratory of Luminescence and Optical Information Ministry of EducationSchool of Science Beijing Jiaotong University

The accumulated ionic interface charge(IIC)affects the performance of perovskite solar cells *** this study,we establish a model to describe the formation of *** ions in perovskite accumulate at the interface and form...

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机器学习算法在同态加密数据集上的应用

清华大学学报（自然科学版） 2020年第6期60卷 456-463页

作者：贾春福王雅飞陈阳孙梦洁葛凤仪南开大学网络空间安全学院天津300350 天津市网络与数据安全技术重点实验室天津300350

大数据时代要求数据在云端进行存储和计算,这导致敏感数据隐私泄露的问题。该文提出了一种在同态加密数据集上应用机器学习分类算法的方案:首先对明文进行预处理,保证其满足对数据进行同态加密的要求;然后在加密数据集上通过协议实现比... 详细信息

大数据时代要求数据在云端进行存储和计算,这导致敏感数据隐私泄露的问题。该文提出了一种在同态加密数据集上应用机器学习分类算法的方案:首先对明文进行预处理,保证其满足对数据进行同态加密的要求;然后在加密数据集上通过协议实现比较、排序等操作;最后获取分类结果。客户端将加密数据上传,可以保证服务器端不会获取任何敏感信息;选取同态加密算法,能够保证服务器端仍可对密文执行相关操作。实验结果表明:该方案适用于Bayes、超平面和决策树分类器,其经过修正具有良好的适用性能,准确率高。

关键词：隐私保护同态加密分类器算法加密数据运算

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不同种类聚丙烯加速老化性能对比

合成树脂及塑料 2023年第3期40卷 40-43页

作者：孙梦捷刘峻上海市质量监督检验技术研究院上海201114

采用差示扫描量热仪及热重分析仪对无规共聚聚丙烯(PPR)、均聚聚丙烯(PPH)和嵌段共聚聚丙烯(PPB)进行原位热氧加速老化特性研究,分析了老化温度对PPR,PPB,PPH熔点和热稳定性能的影响,并采用傅里叶变换红外光谱仪探究了老化温度与分子结... 详细信息

采用差示扫描量热仪及热重分析仪对无规共聚聚丙烯(PPR)、均聚聚丙烯(PPH)和嵌段共聚聚丙烯(PPB)进行原位热氧加速老化特性研究,分析了老化温度对PPR,PPB,PPH熔点和热稳定性能的影响,并采用傅里叶变换红外光谱仪探究了老化温度与分子结构的关系。结果表明:随着热氧老化温度的上升,试样的老化作用逐渐加剧,总体氧化稳定性变差。在典型供应热水70℃条件下,PPR的使用寿命远大于PPB和PPH,说明PPB和PPH不适用于作为热水管材的材料。

关键词：聚丙烯差示扫描量热法加速老化寿命评估

Small extracellular vesicles derived from hypoxic preconditioned dental pulp stem cells ameliorate inflammatory osteolysis by modulating macrophage polarization and osteoclastogenesis

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Bioactive Materials 2023年第4期22卷 326-342页

作者： Jun Tian Weiyang Chen Yuhua Xiong Qianer Li Siyi Kong mengjie Li Chunfeng Pang Yu Qiu Zhezhen Xu Qimei Gong Xi Wei Hospital of Stomatology Guanghua School of StomatologySun Yat-Sen UniversityGuangzhouGuangdong510055PR China Guangdong Provincial Key Laboratory of Stomatology GuangzhouGuangdong510055PR China

Extensive macrophage inflammatory responses and osteoclast formation are predominant during inflammatory or infective *** stem cell(MSC)-derived small extracellular vesicles(MSC-sEV)have been shown to exert therapeutic effects on bone ***,cultured MSCs are typically exposed to normoxia(21%O2)in vitro,which differs largely from the oxygen concentration in vivo under hypoxic *** is largely unknown whether sEV derived from dental pulp stem cells(DPSCs)cultured under hypoxic conditions(Hypo-sEV)exert better therapeutic effects on lipopolysaccharide(LPS)-induced inflammatory osteolysis than those cultured under normoxic conditions(Nor-sEV)by simultaneously inhibiting the macrophage inflammatory response and *** this study,we show that hypoxia significantly induces the release of sEV from ***,Hypo-sEV exhibit significantly improved efficacy in promoting M2 macrophage polarization and suppressing osteoclast formation to alleviate LPS-induced inflammatory calvarial bone loss compared with ***,hypoxia preconditioning markedly alters the miRNA profiles of ***-210-3p is enriched in Hypo-sEV,and can simultaneously induce M2 macrophage generation and inhibit osteoclastogenesis by targeting NF-κB1 p105,which attenuates *** study suggests a promising potential for hypoxia-induced DPSC-sEV to treat inflammatory or infective osteolysis and identifies a novel role of miR-210-3p in concurrently hindering osteoclastogenesis and macrophage inflammatory response by inhibiting NF-kB1 expression.

关键词： Dental pulp stem cells Small extracellular vesicles Macrophage Osteoclast Inflammatory osteolysis