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SSRN 2024年

作者： Zhang, Xiaochun Xu, Peng Kong, Yunhan Liu, Yiming Zhang, Xiangping Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of Education East China University of Science and Technology Shanghai200237 China State Key Laboratory of Organic-Inorganic Composites College of Chemical Engineering Beijing University of Chemical Technology Beijing100029 China College of Chemical Engineering and Environment China University of Petroleum Beijing102249 China Shenyang University of Chemical Technology Liaoning 110142 China Bohai University China

Composite membranes incorporating ionic liquids (ILs) within MXene demonstrate promising potential for CO2 separation. However, studies on the separation of CO2/CH4 using MXene-confined ILs membranes are limited, especially in terms of understanding the mechanisms at the molecular level. In this work, the system of CO2/CH4 in MXene-confined ILs membranes was studied by molecular dynamic simulations. The number density results reveal that MXene stratifies the ILs between the layers, with higher concentrations of ILs near MXene and lower concentrations in the middle layer. Notably, MXene has a greater impact on cations distribution compared to anions. As the layer spacing of MXene expands from 1.5 to 3nm, the interaction between MXene and IL weakens, while that between the cations and anions strengthens. The confined ILs enhance gas adsorption capability but impede gas diffusion. CO2 is distributed closer to anions, while CH4 tends to be closer to cations, with the distance between CH4 and cations decreasing as the layer spacing increases. Additionally, with the increase of layer distance, the proportion of confined ILs gradually decreases, and the gas diffusion coefficient gradually increases. Furthermore, compared to [EMIM][BF4] and [EMIM][PF6], MXene-confined [EMIM][TF2N] is identified as the most effective for CO2/CH4 separation, owing to its superior CO2 dissolution and highest diffusion selectivity. © 2024, The Authors. All rights reserved.

关键词： Ionic liquids

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Iron-based materials functionalized with carbon and phosphorus recovered from sludge enhanced the formation of stable minerals to passivate lead and chromium in wastewater and soil

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Chemosphere 2024年 359卷 142340页

作者： Wang, Liyan Jia, Bojie Teng, Zedong Cao, Hao Miao, Yanli Guo, Huiyuan Li, Tinggang School of Chemical and Environmental Engineering China University of Mining and Technology Beijing100083 China CAS Key Laboratory of Green Process and Engineering Beijing Engineering Research Centre of Process Pollution Control National Engineering Research Center of Green Recycling for Strategic Metal Resources Innovation Academy for Green Manufacture Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Key Laboratory of Rare Earths Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341119 China State Key Laboratory of Biochemical Engineering Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China

The bioaccumulation and toxicity of heavy metals are serious threats to human activities and ecological health. The exploitation of environmentally friendly passivated materials is major importance for the remediation of heavy metal contaminated soil. This research developed a new type of environmental functional material with a core-shell structure, which is an iron-based material functionalized with phosphorus and carbon from sludge for heavy metal pollution remediation. The results indicated that the C/P@Fe exhibits excellent heavy metal removal ability, and the maximum removal rates of the two heavy metals in simulated wastewater could reach 100% under optimum reaction conditions. It also effectively converts the labile Cr/Pb into the stable fraction after 28 days of incubation, which increased the maximum residual fraction percentage of Cr and Pb by 32.43% and 160% in soil. Further analysis found that the carbon layer wrapped around the iron base could improve the electron transport efficiency of reducing iron, phosphorus and ferrum could react with heavy metal ions to form stable minerals, such as FeCr2O4, FeO·Cr2O3, Pb5(PO4)3OH, PbCO3, 2PbCO3·Pb(OH)2 and PbS, after reacting with C/P@Fe. The study demonstrated that the Iron-based materials functionalized with carbon and phosphorus from sludge provided a more efficient way to remove heavy metals. © 2024 Elsevier Ltd

关键词： Lead compounds

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Himalayas as a global hot spot of springtime stratospheric intrusions:Insight from isotopic signatures in sulfate aerosols

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Research in Cold and Arid Regions 2024年第1期16卷 5-13页

作者： Kun Wang ShiChang Kang Mang Lin PengFei Chen ChaoLiu Li XiuFeng Yin Shohei Hattori Teresa L.Jackson JunHua Yang YiXi Liu Naohiro Yoshida Mark HThiemens State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences(CAS)LanzhouGansu 730000China State Key Laboratory of Isotope Geochemistry Guangzhou Institute of GeochemistryCASGuangzhouGuangdong 510640China University of Chinese Academy of Sciences Beijing 100049China International Center for Isotope Effects Research(ICIER) School of Earth Sciences and EngineeringNanjing UniversityNanjingJiangsu 210023China Frontiers Science Center for Critical Earth Material Cycling State Key Laboratory for Mineral Deposits ResearchSchool of Earth Sciences and EngineeringNanjing UniversityNanjingJiangsu 210023China Department of Chemical Science and Engineering School of Materials and Chemical TechnologyTokyo Institute of Technology4259 Nagatsuta-choMidori-kuYokohamaKanagawa 226-8502Japan Department of Chemistry and Biochemistry University of California San DiegoLa JollaCA 92093-0021USA Earth-Life Science Institute Tokyo Institute of TechnologyMeguro-kuTokyo 152-8551Japan National Institute of Information and Communications Technology KoganeiTokyo 184-8795Japan

Downward transport of stratospheric air into the troposphere(identified as stratospheric intrusions)could potentially modify the radiation budget and chemical of the Earth's surface *** the highest and largest plateau on earth,the Tibetan Plateau including the Himalayas couples to global climate,and has attracted widespread attention due to rapid warming and cryospheric *** studies recognized strong stratospheric intrusions in the Himalayas but are poorly understood due to limited direct evidences and the complexity of the meteorological dynamics of the third ***^(35)S is a radioactive isotope predominately produced in the lower stratosphere and has been demonstrated as a sensitive chemical tracer to detect stratospherically sourced air mass in the planetary boundary ***,we report 6-month(April–September 2018)observation of^(35)S in atmospheric sulfate aerosols(^(35)SO_(4)^(2-))collected from a remote site in the Himalayas to reveal the stratospheric intrusion phenomenon as well as its potential impacts in this *** the sampling campaign,the^(35)SO_(4)^(2-)concentrations show an average of 1,070±980 atoms/m^(3).In springtime,the average is 1,620±730 atoms/m^(3),significantly higher than the global existing data measured so *** significant enrichments of^(35)SO_(4)^(2-)measured in this study verified the hypothesis that the Himalayas is a global hot spot of stratospheric intrusions,especially during the springtime as a consequence of its unique geology and atmospheric *** combined with the ancillary evidences,e.g.,oxygen-17 anomaly in sulfate and modeling results,we found that the stratospheric intrusions have a profound impact on the surface ozone concentrations over the study region,and potentially have the ability to constrain how the mechanisms of sulfate oxidation are affected by a change in plateau atmospheric properties and *** study provides new observational constraints on stra

关键词： Himalayas Stratospheric intrusions Cosmogenic^(35)SO_(4)^(2-) Ozone Atmospheric oxidation

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Plain metallic biomaterials:opportunities and challenges

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Regenerative Biomaterials 2023年第1期10卷 140-147页

作者： Jiazhen Zhang Bao Zhai Jintao Gao Zheng Li Yufeng Zheng Minglong Ma Yongjun Li Kui Zhang Yajuan Guo Xinli Shi Bin Liu Guobiao Gao Lei Sun Center for Medical Device Evaluation National Medical Product AdministrationBeijing 100081China Guangdong-Hong Kong-Macao Greater Bay Area Center for Medical Device Evaluation and Inspection of NMPAShenzhen 518045China School of Materials Science and Engineering Peking UniversityBeijing 100871China State Key Laboratory of Nonferrous Metals and Process GRINM Group Corporation Limited(General Research Institute for Nonferrous Metals)Beijing 100088China

The‘plainification of materials’has been conceptualized to promote the sustainable development of *** perspective,for the first time in the field of biomaterials,proposes and defines‘plain metallic biomaterials(PMBs)’with demonstrated research and application case studies of pure titanium with high strength and toughness,and biodegradable,fine-grained and high-purity ***,after discussing the features,benefits and opportunities of PMBs,the challenges are analyzed from both technical and regulatory *** perspectives on PMB-based medical devices are also provided for the benefit of future research,development and commercialization.

关键词： plainification metallic biomaterials regulatory science medical devices pure titanium high-purity magnesium

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engineering Saccharomyces cerevisiae for efficient production of recombinant proteins

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engineering Microbiology 2024年第1期4卷 81-89页

作者： Shuo Yang Liyun Song Jing Wang Jianzhi Zhao Hongting Tang Xiaoming Bao State Key Laboratory of Biobased Material and Green Papermaking School of BioengineeringQilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Shenzhen Key Laboratory for the Intelligent Microbial Manufacturing of Medicines Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Center for Synthetic Biochemistry Shenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Saccharomyces cerevisiae is an excellent microbial cell factory for producing valuable recombinant proteins because of its fast growth rate,robustness,biosafety,ease of operability via mature genomic modification technologies,and the presence of a conserved post-translational modification pathway among eukaryotic ***,meeting industrial and market requirements with the current low microbial production of recombinant proteins can be *** address this issue,numerous efforts have been made to enhance the ability of yeast cell factories to efficiently produce *** this review,we provide an overview of recent advances in *** engineering to improve recombinant protein *** review focuses on the strategies that enhance protein production by regulating transcription through promoter engineering,codon optimization,and expression system ***,we describe modifications to the secretory pathway,including engineered protein translocation,protein folding,glycosylation modification,and vesicle ***,we discuss global metabolic pathway optimization and other relevant strategies,such as the disruption of protein degradation,cell wall engineering,and random ***,we provide an outlook on the developmental trends in this field,offering insights into future directions for improving recombinant protein production in ***.

关键词： Saccharomyces cerevisiae Microbial cell factory Recombinant proteins Transcriptional regulation Secretory pathway Global metabolic pathway optimization

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基于嫦娥五号月球样品的月壤残余内摩擦角预测

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Science Bulletin 2023年第7期68卷 730-739页

作者：聂家岩崔一飞 Kostas Senetakis 郭丹王瑜王国栋冯鹏贺怀宇张徐航张小平李存惠郑虎胡伟牛富俊刘权兴李安原 State Key Laboratory of Hydroscience and Engineering Tsinghua UniversityBeijing 100084China School of Civil Engineering Wuhan UniversityWuhan 430072China Department of Architecture and Civil Engineering City University of Hong KongHong Kong 999077China State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084China Key Laboratory of Mountain Hazards and Surface Process Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China Department of Civil Engineering Tsinghua UniversityBeijing 100084China State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacao 999078China Science and Technology on Vacuum Technology and Physics Laboratory Lanzhou Institute of PhysicsLanzhou 730000China Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China South China Institute of Geotechnical Engineering South China University of TechnologyGuangzhou 510641China School of Mathematical Sciences Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province Shaoxing UniversityShaoxing 312000China

随着人类探月工程的快速发展,月球基地建设以及月表资源开发利用有望更快实现,合理预测月壤工程力学性质对于未来深层次探月工程意义重大,我国嫦娥五号返回月球样品为研究月壤工程力学特性提供了直接的实测材料。然而,月球样品极其珍贵... 详细信息

随着人类探月工程的快速发展,月球基地建设以及月表资源开发利用有望更快实现,合理预测月壤工程力学性质对于未来深层次探月工程意义重大,我国嫦娥五号返回月球样品为研究月壤工程力学特性提供了直接的实测材料。然而,月球样品极其珍贵,难以满足传统土工试验测试.为了应对这一科学挑战,本研究从无损分析月球样品颗粒属性入手,使用高精度X-射线μCT扫描、三维白光干涉、原子力显微镜等无损测试手段,分析了不同类型月壤颗粒的三维多尺度形态、弹性力学和摩擦属性等指标.在此基础上,基于颗粒材料宏微观物理力学理论和数值模型尝试预测了嫦娥五号采样处月壤残余内摩擦角。本研究为基于月球样品信息跨尺度分析月壤工程力学性质提供了可行思路。

关键词： Chang’e-5 lunar samples Geometry Mechanics Tribology Residual friction angle Cross-scale prediction

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Multicomponent supramolecular nanoaggregates with co-emissive electrochemiluminescence

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Matter 2025年第6期8卷

作者： Dai, Li Fang, Jinglong Jiang, Tong Li, Qi Ren, Xiang Li, Yuyang Wu, Dan Ma, Hongmin Lei, Jianping Ju, Huangxian Wei, Qin Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering University of Jinan Jinan250022 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing210023 China

The development of particulate electrochemiluminescence (ECL) emitter with high efficiency is challenging due to either the low electrochemical reaction efficiency for nanoparticles with larger sizes or the low quantum efficiency of molecular luminophores in aggregated forms. While the synthesis of aggregation-induced electrochemiluminescence (AI-ECL) luminophores with high quantum efficiency requires complicated procedures, a supramolecular strategy is proposed for constructing multicomponent nanoaggregates with co-emissive ECL. Aggregation-induced emission (AIE) active tetraphenylethylene (TPE) was used as a molecular matrix to disperse the aggregation-caused quenching (ACQ) luminophores with high quantum efficiency, boron dipyrromethene (BDP), and rhodamine B (RhB). Co-emissions of both molecular matrix and doped luminophores were achieved. The synergistic effects of the supramolecular interactions for enhancement of emission efficiency were confirmed by spectral measurement and molecular dynamic simulation. Small nanoaggregates with higher ECL efficiency were prepared on microfluidic chips and were used as nanolabels for sensitive ECL immunoassays. © 2025 Elsevier Inc.

关键词： Nanoclay

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Physical Mixing of K2co3/Al2o3 and Poly(Divinylbenzene) to Promote Cos Removal from Blast Furnace Gas with High Humidity at Low Temperature

SSRN

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SSRN 2024年

作者： Jia, Liwei Zheng, Yuhua Li, Yuran Zhu, Tingyu Cui, Yanbin State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China

Blast furnace gas (BFG) is a high emission and widely used secondary energy source. However, the presence of sulfide in BFG leads to environment pollution. Carbonyl sulfide (COS) is the main (70%) sulfide in BFG. Catalytic hydrolysis is an important method for COS removal, but the excessive water contained in BFG can significantly inhibit the performance of hydrolysis catalyst. In present work, K2CO3 was loaded on Al2O3 support using wet impregnation method to improve its hydrolysis efficiency. Moreover, a physical mixing method was employed to combine K2CO3/Al2O3 with hydrophobic poly(divinylbenzene) (PDVB) to improve the water resistance of K2CO3/Al2O3. It was found that a simple physical mixture of PDVB with K2CO3/Al2O3 could modulate the local environment of K2CO3/Al2O3, shifting the water-sorption equilibrium on the surface of the catalyst and releasing partial water-covered catalyst surface for hydrolysis. Under the reaction temperature of 90 ℃ and water vapor content of 34.4 g/m3, the hydrolysis efficiency of COS increased by ~22.5% via mixing K2CO3/Al2O3 with PDVB. This approach demonstrates the potential to enhance the hydrolysis efficiency of catalyst for COS removal from BFG with high humidity at low temperature, which is crucial for the practical application of desulfurization of BFG. © 2024, The Authors. All rights reserved.

关键词： Hydrolysis

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Phosphate-dependent regulation of vacuolar trafficking of OsSPX-MFSs is critical for maintaining intracellular phosphate homeostasis in rice

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Molecular Plant 2023年第8期16卷 1304-1320页

作者： Runze Guo Qi Zhang Kun Qian Yinghui Ying Wenying Liao Lening Gan Chuanzao Mao Yong Wang James Whelan Huixia Shou State Key Laboratory of Piant Physiology and Biochemistry Cllege of Life SciencesZhejiang UniversityHangzhouZhejang 310058P.R.China Hainan Institute Zhejiang UniversitySanya 572025China The Provincial International Science and Technology Cooperation Base on Engineering Biology International Campus of Zhejiang UniversityHainingZhejang 314400China Zhijiang lab Hangzhou 310012China

Vacuolar storage of inorganic phosphate(Pi)is essential for Pi homeostasis in *** SPX-MFS family proteins have been demonstrated to be vacuolar Pi transporters in many plant *** regulation of the predominant transporter among rice SPX-MFSs,OsSPX-MFS3,was only moderately suppressed by Pi ***,post-transcriptional mechanisms were hypothesized to regulate the activity of *** this study,we found that the tonoplast localization of OsSPX-MFSs is inhibited under Pi-depleted conditions,resulting in their retention in the pre-vacuolar compartments(PVCs).A yeast two-hybrid screen identified that two SNARE proteins,OsSYP21 and OsSYP22,interact with the MFS domain of *** genetic and cytological analyses indicate that OsSYP21 and OsSYP22 facilitate trafficking of OsSPX-MFS3 from PVCs to the *** a homozygous frameshift mutation in OsSYP22 appeared to be lethal,tonoplast localization of OsSPX-MFS3 was significantly inhibited in transgenic plants expressing a negative-dominant form of OsSYP22(OsSYP22-ND),resulting in reduced vacuolar Pi concentrations in OsSYP22-ND *** Pi-depleted conditions,the interaction between OsSYP22 and OsSPX-MFS3 was disrupted,and this process depended on the presence of the SPX *** the SPX domains of OsSPX-MFSs resulted in their tonoplast localization under both Pi-depleted and Pi-replete *** of the osspx-mfs1/2/3 triple mutants with the MFS domain or the SPX domain of OsSPX-MFS3 confirmed that the MFS and SPX domains are responsive to Pi transport activity and Pi-dependent regulation,*** data indicated that the SPX domains of OsSPX-MFSs sense cellular Pi(InsP)levels and,under Pi-depleted conditions,inhibit the interaction between OsSPX-MFSs and OsSYP21/22 and subsequent trafficking of OsSPX-MFSs from PVCs to the tonoplast.

关键词： fir homeostasis inhibited

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中国钢铁工业减污降碳协同控制技术发展与展望

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engineering 2023年第12期31卷 37-49页

作者： Tingyu Zhu Xiaolong Liu Xindong Wang Hong He CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringInnovation Academy for Green ManufactureChinese Academy of SciencesBeijing 100190China Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China HBIS Group Co. Ltd.Shijiazhuang 050023China

As the largest steel-producing country,China’s steel industry has experienced rapid development in terms of production level and *** to the high consumption of coal in the iron and steel industry,air pollutants and carbon dioxide(CO_(2))show similar emission properties in flue *** view of the collaborative reduction of pollution and carbon emissions,the emission standards for pollutants and carbon were first analyzed,suggesting that carbon emission standards for the iron and steel industry should be accelerated.A collaborative technology system for the reduction of pollution and carbon emissions from the iron and steel industry in China is demonstrated,consisting of(1)optimization of present ultra-low emission technology,(2)low-carbon innovation for present production processes,(3)steel production process reengineering,and(4)carbon capture,utilization,and storage(CCUS).Finally,the technical prospect for collaborative reduction of pollution and carbon emissions from the iron and steel industry in China is suggested to support high-quality green development in this industry.

关键词： Iron andsteelindustry Pollution Carbon emissions Collaborative reduction

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