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Tungsten oxide-anchored Ru clusters with electron-rich and anti-corrosive microenvironments for efficient and robust seawater splitting

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SusMat 2024年第1期4卷 106-115页

作者： Yiming Zhang Weiqiong Zheng Huijuan Wu Ran Zhu Yinghan Wang Mao Wang Tian Ma Chong cheng Zhiyuan zeng Shuang Li College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengduChina Department of Chemical and Biomolecular Engineering National University of SingaporeSingaporeSingapore Department of Materials Science and Engineering and State Key Laboratory of Marine PollutionCity University of Hong KongKowloonHong KongChina Shenzhen Research Institute City University of Hong KongShenzhenChina

Ruthenium(Ru)has been recognized as a prospective candidate to substitute platinum catalysts in water-splitting-based hydrogen ***,minimizing the Ru contents,optimizing the water dissociation energy of Ru sites,and enhancing the long-term stability are extremely required,but still face a great ***,we report on creating tungsten oxide-anchored Ru clusters(Ru-WO_(x))with electron-rich and anti-corrosive microenvironments for efficient and robust seawater *** from the abundant oxygen vacancy structure in tungsten oxide support,the Ru-WO_(x)exhibits strong Ru-O and Ru-W bonds at the *** study elucidates that the strong Ru-O bonds in Ru-WO_(x)may accelerate the water dissociation kinetics,and the Ru-W bonds will lead to the strong metal-support interaction and electrons transfer fromWto *** optimal Ru-WO_(x)catalysts exhibit a low overpotential of 29 and 218mVat the current density of 10 mA cm^(−2) in alkaline and seawater media,*** outstanding long-term stability discloses that the Ru-WO_(x)catalysts own efficient corrosion resistance in seawater *** believe that thiswork offers new insights into the essential roles of electron-rich and anti-corrosivemicroenvironments in Ru-based catalysts and provide a new pathway to design efficient and robust cathodes for seawater splitting.

关键词： hydrogen production microenvironment modulation noble metal catalysts seawater splitting tungsten oxide

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Novel subtype of obesity influencing the outcomes of sleeve gastrectomy:Familial aggregation of obesity

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World Journal of Gastroenterology 2024年第13期30卷 1887-1898页

作者： Ze-Yu Wang Yun-Fei Qu Tian-Ming Yu zeng-Lin Liu Yu-Gang cheng Ming-Wei Zhong San-Yuan Hu Department of General Surgery The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan HospitalJinan 250000Shandong ProvinceChina Department of Postgraduate Shandong First Medical University and Shandong Academy of Medical SciencesJinan 250000Shandong ProvinceChina Department of General Surgery Shandong Provincial Qianfoshan HospitalCheeloo College of Medicine Shandong UniversityJinan 250000Shandong ProvinceChina State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine Lunan Pharmaceutical Group Co.Ltd.Linyi 276005Shandong ProvinceChina

BACKGROUND Differences in the preoperative characteristics and weight loss outcomes after sleeve gastrectomy(SG)between patients with familial aggregation of obesity(FAO)and patients with sporadic obesity(SO)have not been *** To explore the impact of SG on weight loss and the alleviation of obesity-related comorbidities in individuals with *** A total of 193 patients with obesity who underwent SG were *** with FAO/SO were matched 1:1 by propensity score matching and were categorized into 4 groups based on the number of first-degree relatives with obesity(1 SO vs 1FAO,2SO vs 2FAO).The baseline characteristics,weight loss outcomes,prevalence of obesity-related comorbidities and incidence of major surgeryrelated complications were compared between *** We defined FAO as the presence of two or more first-degree relatives with *** with FAO did not initially show significant differences in baseline data,short-term postoperative weight loss,or obesity-related comorbidities when compared to patients with SO ***,distinctions between the two groups became evident at the two-year mark,with statistically significant differences in both percentage of total weight loss(P=0.006)and percentage of excess weight loss(P<0.001).The FAO group exhibited weaker remission of type 2 diabetes mellitus(T2DM)(P=0.031),hyperlipidemia(P=0.012),and non-alcoholic fatty liver disease(NAFLD)(P=0.003)as well as a lower incidence of acid reflux(P=0.038).CONCLUSION FAO patients is associated with decreased mid-to-long-term weight loss outcomes;the alleviation of T2DM,hyperlipidemia and NAFLD;and decreased incidence of acid reflux postoperatively.

关键词： Obesity Bariatric surgery Sleeve gastrectomy Family history Weight loss

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Coupling N-doping and confined Co_(3)O_(4) on carbon nanotubes by polydopamine coating strategy for pleiotropic water purification

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Rare Metals 2024年第7期43卷 3146-3160页

作者： Wen-Long Tu Gang Wang Yue Zhang Hong-Yang Zhu Rong-Rong Du Hong-Yao Zhao Sheng Tang zeng-Jing Guo Jun Yang Fu Yang cheng-Zhang Zhu School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of Chemistry and Chemical Engineering Liaocheng UniversityLiaocheng 252000China School of Material Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of Environmental Science and Engineering Nanjing Tech UniversityNanjing 211816China

The development of effective and sustainable solutions for pleiotropic water purification becomes urgent and *** Fenton-like catalysts for activation of peroxymonosulfate(PMS)to purify organic wastewater show great *** this work,by tuning metal loading with an in-situ polydopamine coating strategy,oxygen vacancy-enriched Co_(3)O_(4) loading on N-doped carbon nanotubes(CNTs)were constructed to enhance PMS activation efficiency for pollutants ***,the obtained modified CNTs afford a well-developed N-containing network structure,which is further endowed with abundant Co(Ⅱ)/Co(Ⅲ)redox cycles and significant metal-carbon *** particular,the surface N doping in CNTs might induce the oriented enrichment of pollutants around the catalyst,which reduces the migration distance and correspondingly improves the utilization of reactive oxidative *** electron transfer efficiency of the catalyst can be further improved by incorporating oxygen vacancy-enriched Co_(3)O_(4).The performance results show that the optimal NC/Co-1 could mineralize 20×10^(-6)of bisphenol A(BPA)by almost 98%in 8 min.A low reaction activation energy(26.05 kJ·mol^(-1))in BPA degradation was demonstrated by the NC/*** importantly,NC/Co-1 can inherit excellent degradation performance towards oxytetracycline,2,4-dichlorophenol,and tetracycline,showing wide practical *** addition,by virtue of the photothermal conversion property,NC/Co-1 achieves an additive function for interfacial solar water evaporation(1.84 kg·m^(-2)·h^(-1),112.51%),showing impressive potential for clean water recovery under complicated environmental pollution conditions.

关键词： Carbon nanotube Advanced oxidation process Co_(3)O_(4) Photothermal conversion Solar water evaporation

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Defects in phospholipase C zeta cause polyspermy and low fertilization after conventional IVF:not just ICSI failure

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Asian Journal of Andrology 2024年第2期26卷 175-182页

作者： Jian-Fang Che Hui-Xia Wu Si-Cong zeng Yue-Ren Wu Jing Dai De-Hua cheng Fei Gong Guang-Xiu Lu Ge Lin Can Dai School of Medicine Hunan Normal UniversityChangsha 410013China Reproductive and Genetic Hospital of CITIC-Xiangya Changsha 410008China Clinical Research Center for Reproduction and Genetics in Hunan Province Changsha 410078China National Engineering and Research Center of Human Stem Cell Changsha 410205China

Phospholipase C zeta(PLC)is a key sperm-borne oocyte-activating factor that triggers Ca^(2+)oscillations and the subsequent block to polyspermy following gamete *** in PLCZ1,the gene encoding PLCζ,cause male infertility and intracytoplasmic sperm injection(ICSI)fertilization failure;and PLCζ expression and localization patterns are significantly correlated with ICSI fertilization rate(FR).However,in conventional in vitro fertilization(cIVF),whether and how sperm PLCζ affects fertilization remain ***,we identified one previously reported and two novel PLCZ1 mutations associated with polyspermy in vitro that are characterized by excessive sperm-zona binding and a delay in pronuclei(PN)*** staining and oocyte activation testing revealed that virtually all spermatozoa from patients lacked functional PLCζ and were thus unable to evoke Ca^(2+) *** with an artificial oocyte activation treatment successfully rescued the polyspermic phenotype and resulted in a live ***,we analyzed PLCζ in an additional 58 males after cIVF treatment in the Reproductive and Genetic Hospital of CiTiC-Xiangya(Changsha,China)between February 2019 and January *** found that the proportion of spermatozoa that expressed PLCζ was positively correlated with both 2PN rate and total *** optimal cutoff value below which males were likely to experience low FR(total FR≤30%)after clVF was 56.7%for the proportion of spermatozoa expressing *** study expands the mutation and the phenotypic spectrum of PLCZ1 and further suggests that PLCζ constitutes a promising biomarker for identifying low FRs cases in cIVF due to sperm-related oocyte activation deficiency and that sperm PLCζ analysis may benefit the widermale population and not onlymen with IcsI failure.

关键词： conventional IVF gene variants PLCζ polyspermy

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Exfoliation Corrosion of As‑Extruded Mg–1Li–1Ca:the Influence of the Superficial Layer

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Acta Metallurgica Sinica(English Letters) 2024年第8期37卷 1339-1353页

作者： Ze‑Song Wei Zi‑You Ding Lei Cai Shao‑Xia Ma Dong‑Qing Zhao Lan‑Yue Cui cheng‑Bao Liu Yuan‑Sheng Yang Yuan‑Ding Huang Rong‑Chang zeng Corrosion Laboratory for Light Metals College of Materials Science and EngineeringShandong University of Science and TechnologyQingdao 266590China Engineering Research Center for Magnesium‑Based New Materials Center for Advancing Materials Performance from the Nanoscale(CAMP‑Nano)State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’an 710049China Shandong Provincial Key Laboratory of High Strength Lightweight Metallic Materials Advanced Materials InstituteQilu University of Technology(Shandong Academy of Sciences)Jinan 250014China Institute of Metals Research Chinese Academy of SciencesShenyang 110016China Institute of Metallic Biomaterials Helmholtz-Zentrum HereonMax‑Planck‑Str.121502 GeesthachtGermany

Exfoliation corrosion(EFC)has rarely been reported for wrought magnesium *** EFC of the as-extruded Mg–1Li–1Ca alloy was observed after the removal of outermost fine-grained *** microstructure and corrosion products were investigated using optical microscopy,scanning electron microscopy,electron backscattered diffraction,X-ray diffraction,and Fourier transform infrared *** corrosion behavior was analyzed using electrochemical polarization,electrochemical impedance spectroscopy,and scanning Kelvin probe *** results indicated that the surface of Mg–1Li–1Ca,with the superficial layer removed,was more susceptible to EFC.A linear correlation between grain boundary density and corrosion resistance was ***,the influence of factors such as grain size,intermetallic compounds,different alloy surfaces,and corrosion products on EFC were discussed,and the corresponding EFC mechanism was clarified.

关键词： Magnesium alloys Exfoliation corrosion Microstructure Intermetallic compound Metamorphic skin

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Constructing core@shell structured photothermal nanosphere with thin carbon layer confined Co-Mn bimetals for pollutant degradation and solar interfacial water evaporation

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Rare Metals 2024年第4期43卷 1686-1701页

作者： Hong-Yang Zhu Meng-Ting Liu Gang Wang Rong-Rong Du Hong-Yao Zhao Hao Lu Shi-Qi Yang Sheng Tang zeng-Jing Guo Jun Yang cheng-Zhang Zhu Fu Yang School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang212003China School of Chemistry and Chemical Engineering Liaocheng UniversityLiaocheng252000China School of Material Science and Engineering Jiangsu University of Science and TechnologyZhenjiang212003China School of Environmental Science and Engineering Nanjing Tech UniversityNanjing210009China

Photothermal material applied in environmental governance has attracted growing *** combining the Stober method and dopamine-triggered coating strategy,Co-Mn precursor was in situ incorporated into the poly dopamine(PDA)layer over the surface of silica ***,a unique photothermal nanosphere with SiO_(2)core and thin carbon layer and dual Co-Mn oxides shell was allowed to form by sequential heat treatment in the inert atmosphere(SiO_(2)@CoMn/C).The bimetallic fraction of Co/Mn in the carbon layer and post-treatment calcination temperature was comprehensively tuned to optimize the peroxymonosulfate(PMS)activation performance of the *** state of bimetallic species was studied including their physical distribution,chemical valence,and interplay by various ***,Co oxides appear as dominant monodispersed nanoparticles(~10 nm),while Mn with cluster-like morphology is observed to uniformly distribute over thin-layer carbon and adhered to the surface of SiO_(2)nanospheres(~250 nm).The calcined temperature could tune the oxidized state of Co species,leading to the optimization of the catalytic performance of introduced dual metal *** a result,this obtained optimal catalyst integrated the advantages of exposed bimetallic CoMn species and N-doped thin carbon to deliver excellent catalytic PMS activation performance and photothermal synergetic catalytic mineralization ability for diversiform *** reactions condition controls and anion interference studies were conducted to identify the adaptability of the optimal ***,the application of solar-driven interfacial water evaporation using optimal SiO_(2)@Co_3Mn_1/C-600 catalyst was explored,showing a high water evaporation rate of 1.48 kg·m^(-2)·h^(-1)and an efficiency of 95.2%,further revealing a comprehensive governance functionality of obtained material in the complex pollution condition.

关键词： Photothermal Peroxymonosulfate(PMS)activation Bimetallic synergy Water evaporation Advanced oxidation process

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Overview of epigenetic degraders based on PROTAC, molecular glue, and hydrophobic tagging technologies

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Acta Pharmaceutica Sinica B 2024年第2期14卷 533-578页

作者： Xiaopeng Peng Zhihao Hu Limei zeng Meizhu Zhang Congcong Xu Benyan Lu chengpeng Tao Weiming Chen Wen Hou Kui cheng Huichang Bi Wanyi Pan Jianjun Chen College of Pharmacy Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of EducationGannan Medical UniversityGanzhou 314000China College of Basic Medicine Gannan Medical UniversityGanzhou 314000China Guangdong Provincial Key Laboratory of New Drug Screening NMPA Key Laboratory for Research and Evaluation of Drug MetabolismSchool of Pharmaceutical SciencesSouthern Medical UniversityGuangzhou 510515China

Epigenetic pathways play a critical role in the initiation, progression, and metastasis of cancer. Over the past few decades, significant progress has been made in the development of targeted epigenetic modulators(e.g., inhibitors). However, epigenetic inhibitors have faced multiple challenges,including limited clinical efficacy, toxicities, lack of subtype selectivity, and drug resistance. As a result,the design of new epigenetic modulators(e.g., degraders) such as PROTACs, molecular glue, and hydrophobic tagging(Hy T) degraders has garnered significant attention from both academia and pharmaceutical industry, and numerous epigenetic degraders have been discovered in the past decade. In this review,we aim to provide an in-depth illustration of new degrading strategies(2017-2023) targeting epigenetic proteins for cancer therapy, focusing on the rational design, pharmacodynamics, pharmacokinetics, clinical status, and crystal structure information of these degraders. Importantly, we also provide deep insights into the potential challenges and corresponding remedies of this approach to drug design and development. Overall, we hope this review will offer a better mechanistic understanding and serve as a useful guide for the development of emerging epigenetic-targeting degraders.

关键词： Epigenetic Degrader PROTAC Molecularglue Hydrophobic tagging

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Potassium transporter OsHAK9 regulates seed germination under salt stress by preventing gibberellin degradation through mediating OsGA2ox7 in rice

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Journal of Integrative Plant Biology 2024年第4期66卷 731-748页

作者： Peng zeng Ting Xie Jiaxin Shen Taokai Liang Lu Yin Kexin Liu Ying He Mingming Chen Haijuan Tang Sunlu Chen Sergey Shabala Hongsheng Zhang Jinping cheng National Key Laboratory of Crop Genetics&Germplasm Enhancement and Utilization Jiangsu Collaborative Innovation Center for Modern Crop ProductionHainan Yazhou Bay Seed LabJiangsu Province Engineering Research Center of Seed Industry Science and TechnologyNanjing Agricultural UniversityNanjing 210095China International Research Center for Environmental Membrane Biology Foshan UniversityFoshan 528000China School of Biological Sciences University of Western AustraliaCrawley WA 6009Australia

Soil salinity has a major impact on rice seed germination,severely limiting rice ***,a rice germination defective mutant under salt stress(gdss)was identified by using chemical *** GDSS gene was detected via MutMap and shown to encode potassium transporter *** analysis of complementation and mutant lines demonstrated that OsHAK9 was an essential regulator responsible for seed germination under salt ***9 is highly expressed in germinating seed *** contents and non-invasive micro-test technology results showed that OsHAK9 restricted K^(+)efflux in salt-exposed germinating seeds for the balance of K^(+)/Na^(+).Disruption of OsHAK9 significantly reduced gibberellin 4(GA4)levels,and the germination defective phenotype of oshak9a was partly rescued by exogenous GA_(3)treatment under salt *** sequencing(RNA-seq)and real-time quantitative polymerase chain reaction analysis demonstrated that the disruption of OsHAK9 improved the GA-deactivated gene OsGA2ox7 expression in germinating seeds under salt stress,and the expression of OsGA2ox7 was significantly inhibited by salt *** mutants of OsGA2ox7 created using clustered,regularly interspaced,short palindromic repeat(CRISPR)/CRISPR-associated nuclease 9 approach displayed a dramatically increased seed germination ability under salt ***,our results highlight that OsHAK9 regulates seed germination performance under salt stress involving preventing GA degradation by mediating OsGA2ox7,which provides a novel clue about the relationship between GA and OsHAKs in rice.

关键词： GDSS gibberellins potassium transporter rice salt tolerance seed germination

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金属有机框架负载小干扰RNA克服乳腺癌的基质屏障

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中华肿瘤杂志 2024年第5期46卷 409-418页

作者：曾铖张剑复旦大学附属肿瘤医院肿瘤内科复旦大学上海医学院肿瘤学系上海200032

目的开发一种新型递送策略,利用金属有机框架(MOF)负载针对整合素αv(ITGAV)的小干扰RNA siITGAV,以克服基质屏障,进而增强乳腺癌内药物递送及免疫可及性。方法构建MOF@siITGAV颗粒,对其进行材料表征。通过细胞摄取实验观察乳腺癌4T1细... 详细信息

目的开发一种新型递送策略,利用金属有机框架(MOF)负载针对整合素αv(ITGAV)的小干扰RNA siITGAV,以克服基质屏障,进而增强乳腺癌内药物递送及免疫可及性。方法构建MOF@siITGAV颗粒,对其进行材料表征。通过细胞摄取实验观察乳腺癌4T1细胞对MOF@siITGAV的摄取情况,细胞计数试剂盒8法检测MOF@siITGAV的细胞毒性。设空白对照组、游离siITGAV组和MOF@siITGAV组,采用实时荧光定量聚合酶链反应检测各组4T1细胞中ITGAV mRNA的表达,采用Western blot检测ITGAV蛋白的表达,采用酶联免疫吸附试验检测TGF-β1的含量。采用3D球体穿透实验观察MOF@siITGAV穿透4T1细胞球的能力。建立三阴性乳腺癌小鼠模型,观察MOF@siITGAV对移植瘤生长及小鼠心、肝、脾、肺、肾等主要脏器的影响,采用免疫组化染色检测肿瘤组织中Ⅰ型胶原蛋白和CD8的表达。结果成功构建MOF@siITGAV颗粒,粒径为(198.0±3.3)nm,电位为-(20.2±0.4)mV。4T1细胞能有效摄取MOF@siITGAV,并触发siRNA的有效释放,MOF@siITGAV组细胞中ITGAV mRNA和蛋白表达水平、TGF-β1的表达水平均显著下调[相对于空白对照组,游离siITGAV组和MOF@siITGAV组4T1细胞中ITGAV mRNA相对表达水平分别为(109.9±19.0)%和(46.5±11.3)%;空白对照组、MOF@siNC组和MOF@siITGAV组TGF-β1浓度分别为(474.5±34.4)pg/ml、(437.2±16.5)pg/ml和(388.4±14.4)pg/ml]。MOF@siITGAV在4T1细胞球中的穿透能力更强,对4T1细胞无明显杀伤效应,0、10、20、40、80和160μg/ml MOF@siITGAV分别处理4T1细胞24 h,细胞活性分别为(99.7±3.5)%、(98.2±5.2)%、(97.3±6.6)%、(92.1±8.1)%和(92.4±4.1)%。MOF@siITGAV能有效抑制小鼠乳腺癌移植瘤的生长,给药15 d后,空白对照组、MOF@siNC组和MOF@siITGAV组小鼠的肿瘤体积分别为(691.1±193.0)mm^(3)、(652.7±306.5)mm^(3)和(135.3±41.9)mm^(3),MOF@siITGAV组小鼠的肿瘤体积小于空白对照组(P=0.025)。与空白对照组和MOF@siNC组相比,MOF@siITGAV组小鼠肿瘤组织中Ⅰ型胶原蛋白的含量明显减少,CD8阳性细胞明显增多,心、肝、脾、肺、肾等主要脏器未见明显异常。结论ITGAV可以破坏乳腺癌的ECM,改善药物瘤内递送,促进免疫细胞浸润。

关键词：乳腺肿瘤金属有机框架整合素αv 基因转染小干扰RNA 细胞外基质

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分布式领导是员工主动行为的驱动因素吗?——一个基于多重中介效应模型的检验

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外国经济与管理 2014年第9期36卷 38-51页

作者：朱瑜黄丽君曾程程暨南大学管理学院广东广州510632

作为一种新型的领导发展取向,分布式领导是员工主动行为和绩效的重要驱动因素,然而国内外有关分布式领导对员工主动行为影响效应和作用机制的研究并不多。本研究在对国内外相关理论研究和实证研究进行系统分析的基础上,构建了分布式领... 详细信息

作为一种新型的领导发展取向,分布式领导是员工主动行为和绩效的重要驱动因素,然而国内外有关分布式领导对员工主动行为影响效应和作用机制的研究并不多。本研究在对国内外相关理论研究和实证研究进行系统分析的基础上,构建了分布式领导影响员工主动行为的模型并加以验证。层次回归分析结果表明,心理授权在分布式领导与员工主动行为之间起着完全中介作用,组织自尊在分布式领导与员工主动行为之间起着显著的部分中介作用;结构方程模型整体检验结果表明,分布式领导对员工主动行为的影响存在三条路径:通过心理授权影响员工的主动行为;通过组织自尊影响员工的主动行为;通过心理授权影响组织自尊进而影响员工的主动行为。本研究的结果有助于揭示分布式领导影响员工主动行为的内在作用机制,并能够有效指导企业激发员工主动行为的管理实践。

关键词：分布式领导主动行为心理授权组织自尊

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