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PdPbBi nanoalloys anchored reduced graphene-wrapped metal-organic framework-derived catalyst for enhancing ethylene glycol electrooxidation

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Rare Metals 2023年第2期42卷 503-514页

作者： Zhi-Rui wu Yu-Ting Zhong xiao-Guang Liu ling Li College of Chemistry and Chemical Engineering Hubei UniversityWuhan430062China

For future clean energy demand,it is essential to develop highly efficient and durable materials for use in renewable energy conversion ***,we report an electrocatalyst loaded with Pd-Pb-Bi nanoalloys on reduced graphene(rGO)-wrapped In_(2)O_(3)(PdPbBi@rGO/In_(2)O_(3))prepared by a hydrothermal ***@rGO/In_(2)O_(3)exhibits higher forward current density(229.12 mA·cm^(-2)),larger electrochemical active surface area(ECSA)(85.87 m^(2)·g^(-1)Pd),smaller impedance(12.68Ω)and lower E_(onset)(-0.56 V)than commercial Pd/***,the current density and ECS A are 8.46 and3.38 times higher than those of commercial Pd/C(27.07 mA·cm^(-2),25.41 m^(2)·g^(-1)Pd),***,the oxidation mechanism of ethylene glycol and the removal of carbon monoxide[CO]_(ads)from the surface of Pd are also discussed in *** columnar support structure wrapped by rGO provides a huge active surface area for ***,the electronic effect of Pd-PbBi nanoalloys can accelerate the removal of CO intermediate species,obtain more Pd active sites and improve the electrocatalytic *** first synthesis of this highly electrocatalyst offers promising value for commercial application in direct fuel cells.

关键词： Electrocatalyst Pd-Pb-Bi nanoalloys Ethylene glycol oxidation In-MOF derivatives Reduced graphene oxide

Double [5]carbohelicene: facile synthesis, chiroptical properties,isomerization study, and lasing application

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Science China Chemistry 2025年第1期 233-240页

作者： Peipei Liu Yantong Li Meng-Xiang wu Hao Kang xiao-Li Zhao Lin Xu Linlin Liu xiaodong Li Junfeng Fang Zhiwei Fang Ya Cheng Hai-Bo Yang Huakang Yu Xueliang Shi State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University School of Physics and Optoelectronics South China University of Technology Institute of Polymer Optoelectronic Materials & Devices State Key Laboratory of Luminescent Materials & Devices South China University of Technology School of Physics and Electronic Science Engineering Research Center of Nanophotonics & Advanced Instrument Ministry of EducationEast China Normal University State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University

Double carbohelicenes have attracted considerable attention due to their aesthetic structures, distinct π-conjugation extension, inherent chirality, and intriguing optical and electronic properties. Herein, the concise de novo synthesis of a new double[5]carbohelicene 1 together with its chiroptical properties, isomerization process and lasing application is presented. 1 was synthesized by a simple protocol involving the formation of a 6,6′-bipentacene as the key intermediate. It is worth noting that1 existed as two diastereomers 1-PP/MM and 1-PM, which were successfully isolated and unambiguously confirmed by Xray crystallography. The optical resolution of the racemic 1-PP/MM was successfully achieved by chiral-phase highperformance liquid chromatography（HPLC）, and 1-PP and 1-MM were characterized by circular dichroism. Interestingly, it was found that 1-PP/MM could be completely isomerized to 1-PM upon heating, and the detailed thermodynamics and kinetics of the isomerization process were systematically investigated. 1-PM exhibited deep-red luminescence with emission maximum at 723 nm and fluorescence quantum yield as high as 32.95%. Consequently, we can showcase the lasing application of 1-PM by doping with epoxy resin to assemble a bottle microlaser spontaneously, which the lasing wavelength is 796.6 nm at a threshold of 0.8 m J cm-2. We believe that our studies, including the facile synthesis methodology, detailed isomerization studies, and lasing application, will shed some light on the design and synthesis of novel carbohelical systems with more functions.

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小鼠各脏器及血中甲基苯丙胺的分布

刑事技术 2003年第3期28卷 28-30页

作者：石晓玲吴敬杰贵州省警官职业学院刑事技术系贵阳市550012

目的通过给小鼠腹腔注射甲基苯丙胺(MAMP),建立小鼠急性染毒模型。方法运用GC/NPD技术,系统地进行了染毒小鼠模型各脏器及血中甲基苯丙胺(MAMP)的定性定量测定。采用1-萘胺作为内标,样品处理时采取加盐酸成盐后,又碱化,用有机溶剂萃取... 详细信息

目的通过给小鼠腹腔注射甲基苯丙胺(MAMP),建立小鼠急性染毒模型。方法运用GC/NPD技术,系统地进行了染毒小鼠模型各脏器及血中甲基苯丙胺(MAMP)的定性定量测定。采用1-萘胺作为内标,样品处理时采取加盐酸成盐后,又碱化,用有机溶剂萃取浓缩挥发。结果回收率高于80%。血、各脏器中最低检出限为2～5ng/ml。结论脑、肾、脾组织可以用于法庭科学分析。

关键词： GC/NPD技术甲基苯丙胺血脏器小鼠动物实验精神兴奋药品检测中毒死亡案

韶关市碘适量地区孕妇甲状腺功能及自身抗体的研究

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医学动物防制 2016年第10期32卷 1067-1070页

作者：夏侯为民王晓燕吴凌霄谷小俭杨通谭明凤乐昌市疾病预防控制中心广东512200 浙江中医药大学基础医学院流行病学与卫生统计学教研室广东省疾病预防控制中心

目的评价韶关市适碘地区不同孕期孕妇甲状腺功能和自身抗体水平,并分析其变化规律,为孕妇科学补碘提供理论依据。方法查找韶关乐昌市2015年碘盐监测资料。在较大医疗机构妇产科门诊采用横断面方法随机抽取331名常住健康孕妇,其中孕早期... 详细信息

目的评价韶关市适碘地区不同孕期孕妇甲状腺功能和自身抗体水平,并分析其变化规律,为孕妇科学补碘提供理论依据。方法查找韶关乐昌市2015年碘盐监测资料。在较大医疗机构妇产科门诊采用横断面方法随机抽取331名常住健康孕妇,其中孕早期（0-13周）、孕中期（14-27周）、孕晚期（28-40周）分别为68、126、137名。采集孕妇尿样测定尿碘,采集静脉血测定甲状腺素（TSH）、血清游离甲状腺素（FT4）、游离三碘甲状腺原氨酸（FT3）、甲状腺球蛋白抗体（TGAb）、甲状腺过氧化物酶抗体（TPOAb）。结果孕早、中、晚期孕妇尿碘中位数分别为185.6μg/L、174.2μg/L、152.7μg/L,全部达到WHO推荐标准,随妊娠的进展尿碘水平逐渐下降（χ2=5.991,P=0.05）;孕早、中、晚期孕妇FT3水平差异无统计学意义（P〉0.05）;孕早、中、晚期FT4水平差异有统计学意义（P〈0.05）;孕早、中、晚期TSH水平差异无统计学意义（P〉0.05）。TSH水平随着妊娠的进展呈上升趋势,差异有统计学意义（P〈0.001）;FT3水平随妊娠的进展呈下降的趋势,差异有统计学意义（P〈0.005）;FT4水平随妊娠的进展呈下降的趋势,差异有统计学意义（P〈0.001）,各孕期呈＂U＂型曲线;各孕期TGAb阳性率差异无统计学意义（P〉0.05）;各孕期TPOAb阳性率差异无统计学意义（P〉0.05）;甲状腺功能正常率为88.52%;甲状腺TSH、FT3、FT4异常人数和TPOAb、TGAb阳性人数在各尿碘水平差异无统计学意义（P〉0.05）;农村与城镇孕妇尿碘中位数差异无统计学意义（P〉0.05）。结论随妊娠进展孕妇碘营养不足增加,高FT4血症主要分布在孕晚期,建议定期检测甲状腺功能和自身抗体水平,相关机构开展甲状腺功能和自身抗体水平监测。

关键词：甲状腺功能碘适量地区妊娠碘营养

35Cr25Ni12奥氏体耐热钢中碳化物的电子显微分析

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分析测试学报 2003年第1期22卷 45-48页

作者：刘江文罗承萍肖晓玲吴东晓陈和兴华南理工大学机械工程学院广东广州510641 华南理工大学分析测试中心广东广州510641 广州有色金属研究院广东广州510650

应用扫描电镜 (SEM)和透射电镜 (TEM)研究了长期使用前后的35Cr25Ni12奥氏体耐热钢中的碳化物演变行为 ;该钢固溶时效后的组织由初晶奥氏体及M23C6 共晶碳化物组成 ,奥氏体基体中析出了二次M23C6,二次碳化物总是与基体保持立方 -立方取... 详细信息

应用扫描电镜 (SEM)和透射电镜 (TEM)研究了长期使用前后的35Cr25Ni12奥氏体耐热钢中的碳化物演变行为 ;该钢固溶时效后的组织由初晶奥氏体及M23C6 共晶碳化物组成 ,奥氏体基体中析出了二次M23C6,二次碳化物总是与基体保持立方 -立方取向关系 ;长期使用(3.5年)后 ,奥氏体中析出的二次碳化物量明显增加 ,部分M23C6 已转变为M6C ,M6C与奥氏体基体以及二次碳化物M23C6

关键词： 35Cr25Ni12奥氏体耐热钢碳化物电镜分析奥氏体

经颈内静脉肝内门体分流术治疗肝硬化门脉高压症56例

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世界华人消化杂志 2006年第14期14卷 1420-1424页

作者：秦建平蒋明德曾维政邓旦徐辉吴晓玲汪庆华顾明成都军区总医院消化内科四川省成都市610083 成都军区总医院超声科四川省成都市610083 成都军区总医院放射科四川省成都市610083

目的:探讨经颈内静脉肝内门体分流术 (transjugular intrahepatic portosystemic shunt, TIPS)治疗肝硬化门脉高压症的临床疗效及并发症．方法:肝硬化并发门脉高压症患者56例,行 TIPS术,支架置入前后测量门静脉主干压力, 测定门静脉、... 详细信息

目的:探讨经颈内静脉肝内门体分流术 (transjugular intrahepatic portosystemic shunt, TIPS)治疗肝硬化门脉高压症的临床疗效及并发症．方法:肝硬化并发门脉高压症患者56例,行 TIPS术,支架置入前后测量门静脉主干压力, 测定门静脉、脾静脉内径,测定门静脉、分流道血流速度;检测外周血象．结果:TIPS术成功率100％,门脉主干压 (cmH2O)24．5±4．2(P<0．01 vs 术前的45．8± 3．6),门静脉内径及脾静脉内径(cm)分别为 1．28±0．095和0．96±0．064(P<0．01 vs术前的 1．62±0．074和1．28±0．032),门脉主干血流速度(cm／s)48．0±17．6(P<0．01 vs术前的13．2± 3．5),分流道血流速度(cm／s)164．0±58．8．脾功能亢进患者30例,WBC(×109／L),PLT(× 109/L),HGB(×g／L)分别为3．92±0．76,80．74± 16．82,118．20±10．24(P<0．01 vs术前的2．65± 0．58,42．56±12．34,86．52±12．68)．食道胃底静脉曲张,腹水等临床症状明显好转．常见并发症有肝性脑病,支架狭窄及闭塞．结论:TIPS是一种治疗肝硬化门脉高压症的有效方法,他能有效地降低门脉压,控制食道、胃底静脉曲张破裂出血．

关键词：经颈内静脉肝内门体分流术治疗肝硬化门脉高压症

Entanglement in simple spin networks with a boundary

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Chinese Physics C 2019年第1期43卷 56-64页

作者： Yi ling Meng-He wu Yikang xiao Institute of High Energy Physics Chinese Academy of Sciences School of Physics University of Chinese Academy of Sciences

We investigate the bipartite entanglement for the boundary states in a simple type of spin networks with dangling edges, in which the two complementary parts are linked by two or more edges. Firstly, the spin entanglement is considered in the absence of the intertwiner entanglement. By virtue of numerical simulations, we find that the entanglement entropy usually depends on the group elements. More importantly, when the intertwiner entanglement is taken into account, we find that it is in general impossible to separate the total entanglement entropy into the contribution from spins on edges and the contribution from intertwiners at vertices. These situations are in contrast to the case when the two vertices are linked by a single edge.

关键词： entanglement spin network loop quantum gravity

Brain-derived neurotrophic factor plays with TRiC:focus on synaptic dysfunction in Huntington’s disease

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Neural Regeneration Research 2025年第10期20卷 2919-2920页

作者： Yingli Gu Kijung Sung Chengbiao wu Department of Neurosciences University of California San DiegoLa JollaCAUSA

Brain-derived neurotrophic factor(BDNF)exerts pleiotropic effects on brain processes including psychiatric disorders,aging,neurodegeneration,and metabolic homeostasis.A simple PubMed search using the key word“BDNF,”to date,yields over 33,000 *** fundamental biology to potential therapeutic applications,BDNF has clearly garnered extensive and significant attention in the field of neurobiology research.

关键词： Huntington homeostasis therapeutic

The effect of cataract surgery on sleep quality:a systematic review and Meta-analysis

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International Journal of Ophthalmology(English edition) 2017年第11期10卷 1734-1741页

作者： ling Zheng xiao-Hang wu Hao-Tian Lin State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510060Guangdong ProvinceChina Jieyang People’s Hospital Jieyang Affiliated HospitalSun Yat-sen UniversityJieyang 522000Guangdong ProvinceChina

AIM： To evaluate the effect of cataract surgery on sleep quality and to compare the difference between ultravioletblocking clear intraocular lens（UVB-IOL） and blue-filtering intraocular lens（BF-IOL） ***： Electronic search was performed of PubM ed, MEDLINE, Embase and the Cochrane Library up to January 2016. Studies were eligible when they evaluated the sleep quality before and after cataract surgery by Pittsburgh sleep quality index（PSQI）. A random/fixed-effects Metaanalysis was used for the pooled estimate. Heterogeneity was assessed with the I2 test. RESULTS： Six studies were selected from 5623 references. Cataract surgery significantly reduced the PSQI scores at postoperative 0-3 mo [mean difference（MD） =-0.62, 95%CI：-1.14 to-0.11, P=0.02, I2=66%] and 3-12 mo（MD=-0.32, 95%CI：-0.62 to-0.02, P=0.04, I2=0）, respectively. Considering different intraocular lens（IOL） implantations, relative postoperative PSQI reduction was found for both UVB-IOL and BF-IOL, but a significant reduction was detected only for UVB-IOL. No significant difference was found with the effect of BF-IOL vs UVB-IOL on sleep quality. CONCLUSION： This study found that cataract surgery significantly improved the PSQI score-derived subjective sleep quality irrespective of the IOL type implanted. These findings highlight a substantial benefit of cataract surgery on systemic health with photoreceptive restoration in addition to visual acuity improvements.

关键词： cataract surgery intraocular lens implantation sleep quality