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Designing ABC-6 family small pore zeolites by epitaxial growth approach

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Chinese Chemical Letters 2024年第3期35卷 508-512页

作者： Xiaohui cui Jia Lv Chao Ma Yujiao Wang Zhenghao Jia Daliang Zhang peng Guo Zhongmin Liu Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450001China National Engineering Research Center of Lower-Carbon Catalysis Technology Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Multi-scale Porous Materials Center Institute of Advanced Interdisciplinary Studies&School of Chemistry EngineeringChongqing UniversityChongqing 400044China University of Chinese Academy of Sciences Beijing 100049China Division of Energy Research Resources Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China

Aluminosilicate small pore zeolites belonging to ABC-6 family play crucially important roles in the high methanol conversion with the high selectivity of light olefins,gas separation and storage,and selective catalytic reduction of NO_(x).In this work,we report a general method,called the epitaxial growth approach,for designing ABC-6 family small pore *** is mainly realized through the epitaxial growth on the nonporous SOD-type zeolite in the presence of inorganic cations(Na^(+)and K^(+))combined with a variety of organic structure directing agents(OSDAs).In this case,a series of ABC-6 family small pore zeolites such as ERI-,SWY-,LEV-,AFX-,and PTT-type zeolites have been successfully synthesized within a few *** importantly,the advanced focused ion beam(FIB)and the low-dose high-resolution transmission electron microscopy(HRTEM)imaging technique have been utilized for unraveling the zeolite heterojunction at the atomic level during the epitaxial growth *** turns out(222)crystallographic planes of the SOD-type zeolite substrate provide unique pre-building units,which facilitate the growth of targeted ABC-6 family small pore zeolites along its ***,the morphologies of ERI-type zeolite can also be tuned through the epitaxial growth approach,achieving a longer lifetime in the methanol conversion.

关键词： Zeolite structure Zeolite synthesis Structural characterizations Low-dose imaging Focused ion beam

Nitro-oleic acid ameliorates erectile dysfunction in a streptozotocin-induced rat model of diabetes by inhibiting oxidative stress and apoptosis and activating the NO/cGMP pathway

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Asian Journal of Andrology 2024年第1期26卷 57-66页

作者： Chang-Bo Zhao Wei-Bo Chen wen-Zhen Wang Fang-Xin Gong cui-Qin Fan Ye Li Tian Lan wen-Jing Wang Ming-Zhen Yuan Department of Urology Shandong Provincial HospitalShandong UniversityJinan 250012China Department of Andrology Liaocheng People's HospitalShandong UniversityLiaocheng 252000China Department of Urology The Second Hospital of Shandong UniversityJinan 250012China Department of Physiology School of Basic Medical SciencesShandong UniversityJinan 250012China

The major vascular complications associated with diabetes make the management of diabetic mellitus erectile dysfunction(DMED)a challenging *** factors contributing to DMED include oxidative stress,nitric oxide(NO)/cyclic guanosine monophosphate(cGMP)pathway activation,and apoptosis,while nitro-oleic acid(NO,-OA)has been shown to be beneficial in treating these aspects of this ***,herein,investigated the effects and possible mechanisms of NO,-OA on erectile function as assessed in a streptozotocin-induced rat model of *** results revealed that the erectile function of DMED rats was significantly impaired compared with that of the control ***,in response to 4 weeks of NO,-OA treatment,there was an improvement in erectile *** expression of oxidative stress-related indicators was significantly increased and the NO/cGMP pathway was impaired in the DMED *** expression of proapoptotic factors was increased,while that of antiapoptotic factors was decreased in the DMED ***,the cell morphology in the cavernous tissue of the DMED group also changed ***,-OA treatment significantly reversed all these changes observed in the DMED *** conclusion,NO,-OA treatment partially improved erectile function in DMED rats through mechanisms that included inhibition of oxidative stress,activation of the NO/cGMP pathway,and a reduction in apoptosis.

关键词： apoptosis diabetic mellitus erectile dysfunction nitro-oleic acid NO/cGMP pathway oxidative stress

Lunar In Situ Large-Scale Construction:Quantitative Evaluation of Regolith Solidification Techniques

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Engineering 2024年第8期39卷 204-221页

作者： Charun Bao Daobo Zhang Qinyu Wang Yifei cui peng Feng MOE Key Laboratory of Civil Engineering Safety and Durability Department of Civil EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of Hydroscience and Engineering Tsinghua UniversityBeijing 100084China

Lunar habitat construction is crucial for successful lunar exploration *** to the limitations of transportation conditions,extensive global research has been conducted on lunar in situ material processing techniques in recent *** aim of this paper is to provide a comprehensive review,precise classification,and quantitative evaluation of these approaches,focusing specifically on four main approaches:reaction solidification(RS),sintering/melting(SM),bonding solidification(BS),and confinement formation(CF).Eight key indicators have been identified for the construction of low-cost and highperformance systems to assess the feasibility of these methods:in situ material ratio,curing temperature,curing time,implementation conditions,compressive strength,tensile strength,curing dimensions,and environmental *** scoring thresholds are determined by comparing the construction requirements with the actual *** the evaluated methods,regolith bagging has emerged as a promising option due to its high in situ material ratio,low time requirement,lack of hightemperature requirements,and minimal shortcomings,with only the compressive strength falling below the neutral *** compressive strength still maintains a value of 2–3 *** proposed construction scheme utilizing regolith bags offers numerous advantages,including rapid and large-scale construction,ensured tensile strength,and reduced reliance on equipment and *** this study,guidelines for evaluating regolith solidification techniques are provided,and directions for improvement are *** proposed lunar habitat design based on regolith bags is a practical reference for future research.

关键词： Lunar habitats Lunar in situ construction Regolith bag Solidification and formation In situ materials Evaluation method

Homoharringtonine promotes heart allograft acceptance by enhancing regulatory T cells induction in a mouse model

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Chinese Medical Journal 2024年第12期137卷 1453-1464页

作者： Xia Qiu Hedong Zhang Zhouqi Tang Yuxi Fan wenjia Yuan Chen Feng Chao Chen pengcheng cui Yan cui Zhongquan Qi Tengfang Li Yuexing Zhu Liming Xie Fenghua peng Tuo Deng Xin Jiang Longkai peng Helong Dai Medical College Guangxi UniversityNanningGuangxi 530004China Department of Kidney Transplantation Center of Organ TransplantationThe Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China National Clinical Research Center for Metabolic Diseases and Department of Metabolism and EndocrinologyThe Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China Department of Organ Transplantation The Fifth Clinical Medical College of Henan University of Chinese Medicine(Zhengzhou People’s Hospital)ZhengzhouHenan 450000China

Background:Homoharringtonine(HHT)is an effective anti-inflammatory,anti-viral,and anti-tumor protein synthesis inhibitor that has been applied ***,we explored the therapeutic effects of HHT in a mouse heart transplant ***:Healthy C57BL/6 mice were used to observe the toxicity of HHT in the liver,kidney,and hematology.A mouse heart transplantation model was constructed,and the potential mechanism of HHT prolonging allograft survival was evaluated using Kaplan-Meier analysis,immunostaining,and bulk RNA sequencing *** HHT-T cell crosstalk was modeled ex vivo to further verify the molecular mechanism of HHT-induced regulatory T cells(Tregs)***:HHT inhibited the activation and proliferation of T cells and promoted their apoptosis ex *** of 0.5 mg/kg HHT for 10 days significantly prolonged the mean graft survival time of the allografts from 7 days to 48 days(P<0.001)without non-immune *** allografts had long-term survival after continuous HHT treatment for 28 *** significantly reduced lymphocyte infiltration in the graft,and interferon-γ-secreting CD4^(+)and CD8^(+)T cells in the spleen(P<0.01).HHT significantly increased the number of peripheral Tregs(about 20%,P<0.001)and serum interleukin(IL)-10 *** downregulated the expression of T cell receptor(TCR)signaling pathway-related genes(CD4,H2-Eb1,TRAT1,and CD74)and upregulated the expression of IL-10 and transforming growth factor(TGF)-βpathway-related genes and Treg signature genes(CTLA4,Foxp3,CD74,and ICOS).HHT increased CD4^(+)Foxp3^(+)cells and Foxp3 expression ex vivo,and it enhanced the inhibitory function of inducible ***:HHT promotes Treg cell differentiation and enhances Treg suppressive function by attenuating the TCR signaling pathway and upregulating the expression of Treg signature genes and IL-10 levels,thereby promoting mouse heart allograft *** findings may have therapeutic implications for organ tr

关键词： Heart transplantation Homoharringtonine Immunosuppressive agents T-lymphocytes,Regulatory Graft acceptance

Infection and Genomic Characteristics of Campylobacter jejuni from a Patient Without Diarrhea — China, 2018

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China CDC weekly 2024年第33期6卷 846-851,I0001-I0005页

作者： Xiangdong Yang wen Wang Chajin cui Binbin Yu Qing Zhang Yanhua Wang Ecological Medicine Research Center National Key Laboratory of Intelligent Tracking and Forecasting for Infectious DiseasesNational Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijingChina Department of Zoonotic Disease Control and Prevention Yunnan Institute of Endemic Diseases Control&PreventionDali Bai Autonomous PrefectureYunnan ProvinceChina Medical Laboratory Department Yunnan Luxi County People’s HospitalHonghe Hani-Yi Autonomous PrefectureYunnan ProvinceChina

Summary What is already known about this topic?A 20-month-old boy was admitted to the hospital with a maximum temperature of 40°C and a single ***,blood culture detected Francisella tularensis(***)using the VITEK 2 Compact *** is added by this report?After incubation of the patient’s blood for 48 hours,the cultured strain was identified as Campylobacter jejuni,named L8,excluding *** the genome sequence of L8,we found a novel Type VI Secretion System(T6SS),of which the conserved C-terminal VgrG domain from positions 561 to 884 showed significant *** are the implications for public health practice?It should be underscored that relying solely on automatic bacterial identification instruments for accurate strain identification is ***,our study suggests that the potential effect of T6SS should be considered when studying the genetic features of a patient’s clinical phenotypes.

关键词： Campylobacter admitted culture

Experimental constraints on the formation of oxychlorine species by UV irradiation and mechanical pulverization on the lunar surface

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Acta Geochimica 2024年第4期43卷 625-637页

作者： Jiamei Li Yu-Yan Sara Zhao He cui Shuai-Yi Qu Yanhua peng Yuhong Yang Xiongyao Li Research Center for Planetary Science College of Earth and Planetary SciencesChengdu University of TechnologyChengdu 610059China Center for Excellence in Comparative Planetology Chinese Academy of SciencesHefei 230026China College of Life Sciences Wuchang University of TechnologyWuhan 430204China Technical Center of Qingdao Customs Qingdao 266114China Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Nanning College of Technology Guilin 541006China Center for Lunar and Planetary Sciences Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China

Perchlorate and chlorate are present in various extraterrestrial celestial bodies throughout the solar system,such as Mars,the moon,and *** date,the origin mechanisms of perchlorate and chlorate on the Martian surface have been well-established;however,relatively little attention has been cast to airless ***,we experimentally investigated the potential oxidation mechanisms of chloride to chlorate and perchlorate,such as ultraviolet irradiation under H_(2)O-and O_(2)-free conditions and mechanical pulverization *** minerals,olivine,pyroxene,ilmenite,magnetite,TiO_(2)and anhydrous ferric sulfate,and lunar regolith simulants(low Ti,CLRS-1;high-Ti,CLRS-2)and their metallic iron(Fe^( 0))bearing counterparts were *** found that pulverization of dry matrix material-halite mixtures,even in the presence of O_(2),does not necessarily lead to perchlorate and chlorate formation without involving *** photocatalytic and H_(2)O and O_(2)-free conditions,olivine and pyroxene can produce oxychlorine(ClO_(x)^(−))species,although the yields were orders of magnitude lower than those under Martian-relevant ***-Fe^(0)particles in the lunar regolith and the common photocatalyst TiO_(2)can facilitate the ClO_(x)^(−)formation,but their yields were lower than those with *** oxides ilmenite and magnetite did not efficiently contribute to ClO_(x)^(−)*** results highlight the critical role of H_(2)O in the oxidation chloride to chlorate and perchlorate,and provide essential insights into the environmental influence on the formation of oxychlorine species on different celestial bodies.

关键词： Perchlorate Chlorate Lunar regolith Metallic Fe Airless bodies

Lead-free perovskite Cs_(2)AgBiBr_(6)photodetector detecting NIR light driven by titanium nitride plasmonic hot holes

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Photonics Research 2024年第3期12卷 522-533页

作者： ZIJIAN LIU YUYING XI wenBO ZENG TING JI wenYAN WANG SITONG GUO LINLIN SHI RONG wen YANXIA cui GUOHUI LI College of Physics College of Electronic Information and Optical EngineeringKey Laboratory of Advanced Transducers and Intelligent Control System of Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030032China

Lead-free perovskite Cs_(2)AgBiBr_(6)manifests great potential in developing high-performance,environmentally friendly,solution-processable photodetectors(PDs).However,due to the relatively large energy bandgap,the spectrum responses of Cs_(2)AgBiBr_(6)PDs are limited to the ultraviolet and visible region with wavelengths shorter than 560 *** this work,a broadband Cs_(2)AgBiBr_(6)PD covering the ultraviolet,visible,and near infrared(NIR)range is demonstrated by incorporating titanium nitride(TiN)nanoparticles that are prepared with the assistance of self-assembled polystyrene sphere *** addition,an atomically thick Al2O3layer is introduced at the interface between the Cs_(2)AgBiBr_(6)film and TiN nanoparticles to alleviate the dark current deterioration caused by nanoparticle *** a result,beyond the spectrum range where Cs_(2)AgBiBr_(6)absorbs light,the external quantum efficiency(EQE)of the TiN nanoparticle incorporated Cs_(2)AgBiBr_(6)PD is enhanced significantly compared with that of the control,displaying enhancement factors as high as 2000 over a broadband NIR wavelength *** demonstrated enhancement in EQE arises from the photocurrent contribution of plasmonic hot holes injected from TiN nanoparticles into Cs_(2)AgBiBr_(6).This work promotes the development of broadband solution-processable perovskite PDs,providing a promising strategy for realizing photodetection in the NIR region.

关键词： perovskite titanium ultraviolet

Effect of V on high-temperature mechanical properties of Al-5Cu-1.5Ni alloy

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Journal of Iron and Steel Research International 2024年第7期31卷 1792-1810页

作者： Jun-ge cui Yong-bin Chen Xiang-zhou Fu Hai-long Yang Han-zhang Wang An-min Li Li-wen Pan School of Resources Environment and MaterialsGuangxi UniversityNanning 530004GuangxiChina State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Nanning 530004GuangxiChina Guangxi Higher Education Key Laboratory of Advanced Materials Nanning 530004GuangxiChina

The effects of V on microstructure,room temperature,and high-temperature(350℃)mechanical properties of Al-5Cu-1.5Ni alloy were *** results show that Al-5Cu-1.5Ni-xV alloys mainly compriseα-Al,Al_(2)Cu,Al_(3)(Ni,Cu)_(2),Al_(3)Ni,Al7Cu4Ni,and Al_(10)V *** addition of V can signally refineα-Al dendritic structure,which improves the mechanical properties of the as-cast alloys at room and high *** T6 heat treatment(540℃/12 h/WC+170℃/8 h/AC),α-Al,network skeleton structure Al_(3)(Ni,Cu)_(2),and Al_(10)V phases all show coarsening,while the fine nano-θ'-Al_(2)Cu precipitated from the matrix and dispersed *** introduction of V promotes the quantity of precipitatedθ'-Al_(2)Cu *** ultimate tensile strength of the heat-treated alloys at room and high temperatures is greatly improved compared to that of the as-cast *** highest high-temperature ultimate tensile strength of the alloys with V is 111.8 MPa,21.5%higher than that of the base *** analysis shows that the improvement of high-temperature mechanical properties after heat treatment is mainly due to the introduction of V,increasing the precipitated quantity of nano-θ'-Al_(2)Cu particles and improving its thermal *** dispersion strengthening effect ofθ'-Al_(2)Cu particles exceeds the weakening effect of other adverse microstructures on the mechanical properties.

关键词： Al-Cu-Ni-V alloy θ'-Al_(2)Cu phase Heat treatment Microstructure Mechanical property

Flexible nanoimprint lithography enables high-throughput manufacturing of bioinspired microstructures on warped substrates for efficient III-nitride optoelectronic devices

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Science Bulletin 2024年第13期69卷 2080-2088页

作者： Siyuan cui Ke Sun Zhefu Liao Qianxi Zhou Leonard Jin Conglong Jin Jiahui Hu Kuo-Sheng wen Sheng Liu Shengjun Zhou Center for Photonics and Semiconductors School of Power and Mechanical EngineeringWuhan UniversityWuhan 430072China The Institute of Technological Sciences Wuhan UniversityWuhan 430072China Department of Mechanical and Mechatronics Engineering University of WaterlooWaterloo ONN2L 3G1Canada Jiangxi SMTC Semiconductor Co. Ltd.Nanchang 330096China

III-nitride materials are of great importance in the development of modern optoelectronics,but they have been limited over years by low light utilization rate and high dislocation densities in heteroepitaxial films grown on foreign substrate with limited refractive index contrast and large lattice ***,we demonstrate a paradigm of high-throughput manufacturing bioinspired microstructures on warped substrates by flexible nanoimprint lithography for promoting the light extraction *** design a flexible nanoimprinting mold of copolymer and a two-step etching process that enable high-efficiency fabrication of nanoimprinted compound-eye-like Al2O3 microstructure(NCAM)and nanoimprinted compound-eye-like SiO_(2)microstructure(NCSM)template,achieving a 6.4-fold increase in throughput and 25%savings in economic costs over stepper projection *** to NCAM template,we find that the NCSM template can not only improve the light extraction capability,but also modulate the morphology of AlN nucleation layer and reduce the formation of misoriented GaN grains on the inclined sidewall of microstructures,which suppresses the dislocations generated during coalescence,resulting in 40%reduction in dislocation *** study provides a low-cost,high-quality,and high-throughput solution for manufacturing microstructures on warped surfaces of III-nitride optoelectronic devices.

关键词： Flexible nanoimprint lithography Bioinspired Micro-and nano-manufacturing III-nitride epitaxy Optoelectronic devices