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The unexpected“butterfly effect”of Pt-coordinated cyanine self-assembly for enhanced tumor photothermal therapy

science china Materials 2024年第9期67卷 3003-3011页

作者： Erting feng Fangyuan Lv Shanliang Tang Jianjun du Shibo Lv Yingnan Wu Dapeng Liu Panwang Zhou fengling Song Xiaojun Peng State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart Materials Oriented Chemical EngineeringDalian University of TechnologyDalian116024China institute of Frontier chemistry School of Chemistry and Chemical EngineeringShandong UniversityQingdao266237China institute Shenzhen Research institute of Shandong university Shenzhen518057China

J-aggregates of cyanine have shown great merits in tumor photothermal therapy(PTT)due to their distinct redshift absorption as well as superior photothermal conversion efficiency(PCE).However,due to the complexity of intermolecular interactions,especially the impact of steric hindrance on aggregation,exploring effective strategies to regulate the aggregation modes of organic materials remains ***,steric hindrance-regulated J-aggregation of near-infrared(NIR)cyanine was reported based on Pt-coordinated cyanine self-assembly with unexpected“butterfly effect”.Two Pt-coordinated cyanine dimers CyR-Pt(R=Me and Et)were synthesized and spontaneously self-assembled into aggregates in aqueous ***-Pt aggregates were loose and amorphous *** replacing ethyl with methyl to reduce steric hindrance,a tiny change resulted in the generation of tightly stacked cyanine J-aggregates(thickness less than 3 nm)observed in CyMe-Pt ***,this unexpected“butterfly effect”enabled CyMe-Pt J-aggregates to effectively inhibit reactive oxygen species and greatly improve its ***,CyMe-Pt J-aggregates with NIR-II absorption exhibited outstanding photothermal stability and higher PCE(η=37%)than CyEt-Pt disordered aggregates(η=20%).Evident tumor suppression performance of CyMe-Pt J-aggregates was validated under 980 nm laser irradiation,demonstrating its great potential in tumor PTT.

关键词： near-infrared cyanine metal coordination steric hindrance J-aggregation photothermal therapy

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dual-additives enable stable electrode-electrolyte interfaces for long life Li-SPAN batteries

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Chinese Chemical Letters 2024年第5期35卷 459-465页

作者： Zhenqiang Guo Huicong Yang Qian Wei Shengjun Xu Guangjian Hu Shuo Bai feng Li School of Materials science and engineering University of Science and Technology of ChinaShenyang 110016China Shenyang National Laboratory for Materials science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Department of Biochemistry and molecular Biology College of Life ScienceChina Medical UniversityShenyang 110122China Dalian National Laboratory for Clean Energy Dalian 116023China Shenyang King Power technology Co. Ltd.Shenyang 110016China

sulfurized polyacrylonitrile(SPAN)is proposed as a promising cathode material for lithium sulfur ***,the continuous side reactions at the electrolyte-electrode interfaces as well as the slow redox kinetics of SPAN cathode deteriorate the electrochemical *** this study,an electrolyte with dual-additives comprising 2-fluoropyridine(2-FP)and lithium difluorobis(oxalato)phosphate(LiDFBOP)was used to improve the performance of Li||SPAN cells.2-FP has a lower lowest occupied molecular orbital energy than that of the solvents in the electrolyte,leading to its prior reduction.A LiF-rich film can be formed on the electrode,effectively improving the stability of the electrolyte-electrode interfaces and prolonging the ***,LiDFBOP could form an electrolyte-electrode interface film containing a large amount of Li_(x)PO_(y)F_(z) species,compensating for the kinetic deterioration caused by the lower ionic conductive of LiF formed at the electrolyte-electrode ***,an electrode-interface film with good chemical stability and high Li^(+) transport was established by LiF and Li_(x)PO_(y)F_(z)-rich *** Li||SPAN cell with the electrolyte containing dual-additives demonstrates an excellent capacity retention of 97.5%after 200 cycles at 1.0 C,25℃,comparing to 56.2%capacity retention without ***,the rate capacities of cells with dual-additives can reach 1128.1 mAh/g at 5 C,comparing to only 813.5 mAh/g using electrolyte without *** results shown that the dual-additives in electrolyte provide a promising strategy for practical application of lithium sulfur batteries with SPAN cathodes.

关键词： sulfurized polyacrylonitrile Lithium metal Interface film 2-Fluoropyridine Difluorobis(oxalato)phosphate

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Changes in Sediment Sources in the Southern Muddy Area of Weihai,china,Since the Late Pleistocene:A Record from Rare Earth Elements

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Journal of Ocean university of china 2024年第5期23卷 1221-1232页

作者： ZHANG Zhichao LIU Jinqing YIN Ping CAO Ke feng Xiaokun WANG Shengyu College of Earth science and engineering Shandong University of Science and TechnologyQingdao 266590China State Key Laboratory of Marine Geology School of Ocean and Earth ScienceTongji UniversityShanghai 200092China qingdao institute of Marine Geology China Geological SurveyQingdao 266237China

The small muddy areas developed in the southern Shandong Peninsula have attracted increasing attention from researchers because of complex changes in sediment sources driven by sea-level fluctuations and land-sea interactions since the late *** study investigates the evolution of sediment sources and their responses to environmental changes since the late Pleistocene,using core WHZK01 collected from the nearshore muddy area in southern Weihai for rare earth element(REE)*** doing so,this work highlights the changing patterns of material sources and the primary control *** results reveal that the sedimentary deposits in core WHZK01 exhibit distinct terrestrial *** function analysis(F_(D))and source discrimination dia-grams both suggest that the primary sources of these deposits are the Yellow River and adjacent small and medium-sized rivers,although the sources vary among different sedimentary ***,the du3 layer(17.82-25.10 m)displays typical riverine sedimentation,dominated by terrestrial detrital input,primarily from the local rivers,namely the Huanglei and Muzhu *** material in the du2 layer(14.91-17.82 m)is mainly influenced by a mixture of the Qinglong and Yellow *** du1 layer(0-14.91 m)is influenced by sea-level changes during the Holocene,with the Yellow River being the primary source,although there is also some input from local *** changes in sea level during the Holocene and the input of Yellow River material carried by the coastal currents of the Yellow Sea are identified as the main controlling factors for the changes in material sources in the study area since the late Pleistocene,with small and mediumsized rivers also exerting some influence on the material *** above mentioned findings not only contribute to a better understanding of the source-sink systems of the Yellow River and adjacent small and mediumsized rivers but also deepen our understanding of the la

关键词： rare earth element source identification environmental evolution muddy area southern Weihai

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Roadmap for rechargeable batteries:present and beyond

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science china chemistry 2024年第1期67卷 13-42页

作者： Sen Xin Xu Zhang Lin Wang Haijun Yu Xin Chang Yu-Ming Zhao Qinghai Meng Pan Xu Chen-Zi Zhao Jiahang Chen Huichao Lu Xirui Kong Jiulin Wang Kai Chen Gang Huang Xinbo Zhang Yu su Yao Xiao Shu-Lei Chou Shilin Zhang Zaiping Guo Aobing du Guanglei Cui Gaojing Yang Qing Zhao Liubing Dong Dong Zhou Feiyu Kang Hu Hong Chunyi Zhi Zhizhang Yuan Xianfeng Li Yifei Mo Yizhou Zhu Dongfang Yu Xincheng Lei Jianxiong Zhao Jiayi Wang Dong su Yu-Guo Guo Qiang Zhang Jun Chen Li-Jun Wan CAS Key Laboratory of molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China university of Chinese Academy of sciences.Beijing 100049 China institute of Advanced Battery Materials and Devices Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Key Laboratory of Advanced Functional Materials Ministry of EducationBeijing University of TechnologyBeijing 100124China Beijing Key Laboratory of Green Chemical Reaction engineering and technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of chemistry and Utilization of Carbon-Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830046China Department of Chemical engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChangchun 130022China institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China School of Chemical engineering and Advanced Materials The University of AdelaideAdelaide 5000Australia qingdao Industrial Energy Storage Research institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Frontiers science Center for New Organic Matter Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China College of chemistry and Materials science Jinan UniversityGuangzhou 511443China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Department of Materials science and engineering City University of Hong KongHong Kong 999077China Division of Energy Storage Dalian National Laboratory for Clean Energy(DNL)Dalian Institute of Chem

Rechargeable batteries currently hold the largest share of the electrochemical energy storage market,and they play a major role in the sustainable energy transition and industrial decarbonization to respond to global climate *** to the increased popularity of consumer electronics and electric vehicles,lithium-ion batteries have quickly become the most successful rechargeable batteries in the past three decades,yet growing demands in diversified application scenarios call for new types of rechargeable *** efforts are made to developing the next-generation post-Li-ion rechargeable batteries,which include,but are not limited to solid-state batteries,lithium–sulfur batteries,sodium-/potassium-ion batteries,organic batteries,magnesium-/zinc-ion batteries,aqueous batteries and flow *** the great achievements,challenges persist in precise understandings about the electrochemical reaction and charge transfer process,and optimal design of key materials and interfaces in a *** roadmap tends to provide an overview about the current research progress,key challenges and future prospects of various types of rechargeable *** computational methods for materials development,and characterization techniques will also be discussed as they play an important role in battery research.

关键词： energy storage rechargeable batteries battery materials electrochemistry

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Nanoscopic tribological characteristics of a cryogenically cycled Zr-based metallic glass

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science china(Physics,Mechanics & Astronomy) 2024年第6期67卷 113-126页

作者： Qian Jia Qiaosheng Xia Qing Zhou Yucheng Wang Yue Ren Yu Meng Haifeng Wang feng Zhou State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsNorthwestern Polytechnical UniversityXi’an 710072China Shaanxi Key Laboratory of surface engineering and Remanufacturing Xi’an UniversityXi’an 710065China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Optimized macroscopic tribological behavior can be anticipated in metallic glasses(MGs)by cryogenic cycling treatment(CCT),which is attributed to enhanced ***,the intrinsic friction mechanisms of MGs induced by cryogenic rejuvenation are still poorly *** the present study,nanoscopic wear tests were conducted on the Zr-based MGs surface with different CCT cycles using atomic force microscopy(AFM).After CCT treatment with 100 cycles,the MG displays the highest adhesion and ploughing frictions,but significantly improved anti-wear *** tests and molecular dynamics simulations disclose that the increased adhesion is attributed to the dominance of liquid-like regions in the CCT-treated MGs,and the impact of reduced hardness and weak elastic recovery results in the deteriorated ploughing *** enhanced plasticity effectively dissipates the strain from the AFM tip through multiple shear bands and weakens the adhesion during deformation,giving rise to excellent wear *** study elucidates the promoting effect of CCT on the outstanding antiwear performance of MGs,and is helpful for the development of novel alloys.

关键词： metallic glasses cryogenic cycling treatment nanoscope wear friction mechanism

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FP-Zernike:An Open-source Structural Database Construction Toolkit for Fast Structure Retrieval

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Genomics, Proteomics & Bioinformatics 2024年第1期22卷 111-119页

作者： Junhai Qi Chenjie feng Yulin Shi Jianyi Yang Fa Zhang Guojun Li Renmin Han Research Center for Mathematics and Interdisciplinary sciences Shandong UniversityQingdao 266237China BioMap Research Menlo ParkCA 94025USA College of Medical Information and engineering Ningxia Medical UniversityYinchuan 750004China institute of engineering Medicine Beijing Institute of TechnologyBeijing 100081China

The release of AlphaFold2 has sparked a rapid expansion in protein model *** protein structure retrieval is crucial for the analysis of structure models,while measuring the similarity between structures is the key challenge in structural *** existing structure alignment algorithms can address this challenge,they are often ***,the state-of-the-art approach involves converting protein structures into three-dimensional(3D)Zernike descriptors and assessing similarity using Euclidean ***,the methods for computing 3D Zernike descriptors mainly rely on structural surfaces and are predominantly web-based,thus limiting their application in studying custom *** overcome this limitation,we developed FP-Zernike,a user-friendly toolkit for computing different types of Zernike descriptors based on feature *** simply need to enter a single line of command to calculate the Zernike descriptors of all structures in customized ***-Zernike outperforms the leading method in terms of retrieval accuracy and binary classification accuracy across diverse benchmark *** addition,we showed the application of FP-Zernike in the construction of the descriptor database and the protocol used for the Protein Data Bank(PDB)dataset to facilitate the local deployment of this tool for interested *** demonstration contained 590,685 structures,and at this scale,our system required only 4-9 s to complete a *** experiments confirmed that it achieved the state-of-the-art accuracy ***-Zernike is an open-source toolkit,with the source code and related data accessible at https://***/biocode/tools/BT007365/releases/0.1,as well as through a webserver at http://***/.

关键词： Zernike descriptor Structure alignment PDB dataset Open-source Retrieval system

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Gender-Specific Association of the Glucocorticoid Receptor Gene with Extreme Bone Mineral Density

Gender-Specific Association of the Glucocorticoid Receptor G...

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第三届国际骨质疏松及骨矿盐疾病学术会议

作者： Yu-Mei Peng~1 Shu-feng Lei~2 Yan Guo~1 Jin-Tang Wang~3 Hong-Wen Deng~(1,2) 1.The Key Laboratory of Biomedical Information engineering of Ministry of Education and institute of molecular Genetics,School of Life science and technology,Xi’an Jiaotong university,Xi’an 710049,P R china 2.Laboratory of molecular and Statistical Genetics,College of Life sciences,Hunan Normal university,Changsha,Hunan 410081,P R china 3.Dept of Orthopaedics,the first affiliated Hospital,School of medicine,Xi’an Jiao Tong university,Xi’an,710061,P R china

＜正＞To investigate the role of glucocorticoid receptor （GR） gene for bone mineral density （BMD） regulation in Chinese,we performed a gender-specific association *** results

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Understanding the role of manganese oxides in retaining harmful metals: Insights into oxidation and adsorption mechanisms at microstructure level

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Eco-Environment & Health 2024年第1期3卷 89-106页

作者： feng Li Hui Yin Tianqiang Zhu Wen Zhuang School of Environmental science and engineering Shandong UniversityQingdaoShandong 266237China institute of Marine science and technology Shandong UniversityQingdao 266237China Key Laboratory of Arable Land Conservation(Middle and Lower Reaches of Yangtse River) Ministry of Agriculture and Rural AffairsCollege of Resources and EnvironmentHuazhong Agricultural UniversityWuhan 430070China State Environmental Protection Key Laboratory of Soil Health and Green Remediation Ministry of Ecology and EnvironmentHuazhong Agricultural UniversityWuhan 430070China National Laboratory for Marine science and technology Qingdao 266237China institute of Eco-environmental Forensics Shandong UniversityQingdao 266237China

The increasing intensity of human activities has led to a critical environmental challenge:widespread metal ***(Mn)oxides have emerged as potentially natural scavengers that perform crucial functions in the biogeochemical cycling of metal *** reviews have focused on the synthesis,characterization,and adsorption kinetics of Mn oxides,along with the transformation pathways of specific layered Mn *** review conducts a meticulous investigation of the molecular-level adsorption and oxidation mechanisms of Mn oxides on hazardous metals,including adsorption patterns,coordination,adsorption sites,and redox *** also provide a comprehensive discussion of both internal factors(surface area,crystallinity,octahedral vacancy content in Mn oxides,and reactant concentration)and external factors(pH,presence of doped or preadsorbed metal ions)affecting the adsorption/oxidation of metals by Mn ***,we identify existing gaps in understanding these mechanisms and suggest avenues for future *** goal is to enhance knowledge of Mn oxides'regulatory roles in metal element translocation and transformation at the microstructure level,offering a framework for developing effective metal adsorbents and pollution control strategies.

关键词： Manganese oxides Harmful metals Adsorption Redox Environment

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Construction of Type I Aggregation-Induced Emission Photosensitizers for Photodynamic Therapy via Photoinduced Electron Transfer Mechanism

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有机化学 2024年第8期44卷 2530-2537页

作者： Jia Hanyu Yu Yuewen feng Guangxue Tang Ben Zhong Guangdong Provincial Key Laboratory of Luminescence from molecular Aggregates State Key Laboratory of Luminescent Materials and DevicesSchool of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640 Shenzhen institute of Aggregate science and technology School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong 518172

Photodynamic therapy(PDT)as a non-invasive anticancer modality has received increasing attention due to its advantages of noninvasiveness,high temporospatial selectivity,simple and controllable operation,*** mainly relies on the generation of toxic reactive oxygen species(ROS)by photosensitizers(PSs)under the light irradiation to cause cancer cell apoptosis and ***,solid tumors usually exhibit an inherent hypoxic microenvironment,which greatly limits the PDT efficacy of these high oxygen-dependent conventional type II ***,it is of great importance to design and develop efficient type I PSs that are less oxygen-dependent for the treatment of hypoxic ***,a new strategy for the preparation of efficient type I PSs by introducing the photoinduced electron transfer(PET)mechanism is ***-NO_(2) is obtained by introducing 4-nitrobenzyl to(Z)-2-(5-(4-(diethylamino)-2-hydroxybenzylidene)-4-oxo-3-phenylthiazolidin-2-ylidene)malononitrile(DR-OH)with aggregation-induced emission(AIE)*** AIE feature ensures their high ROS generation efficiency in aggregate,and the PET process leads to fluorescence quenching of DR-NO_(2) to promote triplet state formation,which also promotes intramolecular charge separation and electron transfer that is conducive for type I ROS particularly superoxide radicals *** addition,DR-NO_(2) nanoparticles are prepared by nanoprecipitation to possess nanoscaled sizes,high cancer cell uptake,and excellent type I ROS generation ability,which results in an excellent performance in PDT ablation of MCF-7 cancer *** PET strategy for the development of type I PSs possesses great potential for PDT applications against hypoxic tumors.

关键词： photodynamic therapy aggregation-induced emission photoinduced electron transfer type I photosensitizer hypoxic tumor microenvironment

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Concerted Steric and Electronic Strategy in Thermostable Salicylaldiminato Nickel Catalysts for Ethylene(Co)polymerization

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Chinese Journal of Polymer science 2024年第8期42卷 1085-1092页

作者： Hong-Yu Ji Hong-Liang Mu Chun-feng Tang Yu-Xing Zhang Yue Chi Zhong-Bao Jian Key Laboratory of Advanced Structural Materials Ministry of EducationSchool of Materials Science and EngineeringChangchun University of TechnologyChangchun 130012China State Key Laboratory of Polymer Physics and chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

Olefin polymerization is one of the most im portant chemical reactions in *** work presents a strategy that emphasizes the synergistic meta/poro-steric hindrance of N-aryl groups and electronic effects in newly synthesized neutral salicylaldiminato nickel *** nickel(Ⅱ)catalysts exhibit exceptional thermostability,ranging from 30℃to 130℃,demonstrating enhanced catalytic activities and broadly regulated polyethylene molecular weights(3-341 kg·mol^(-1))and controlled polymer branch density(2-102 brs/1000C).The preferred catalyst Ni3 with concerted steric and electronic effects enables the production of solid-state semi-crystalline polyethylene materials at temperatures below 90℃.Notably,Ni3 exhibits an impressive tolerance of 110℃and can withstand even the challenging polymerization temperature of 130℃,leading to the production of polyethylene wax and ***,functionalized polyethylene is produced.

关键词： Polyolefin Salicylaldiminato ligand Nickel catalyst Oil Wax

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