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chinese Journal of chemistry 2024年第4期42卷 343-350页

作者： na Yao Juan Zhu Hongnan Jia Hengjiang cong Wei luo college of chemistry and molecular Sciences Wuhan UniversityWuhanHubei430072 China

Developing highly efficient and low-cost electrocatalysts towards oxygen evolution reaction(OER)is essential for practical application in water electrolyzers and rechargeable metal-air *** Fe-based oxyhydroxides are regarded as state-of-the-art non-noble OER electrocatalysts,the origin of performance enhancement derived from Fe doping remains a hot topic of considerable ***,we demonstrate that in situ generated Fe vacancies in the pristine coFeOOH catalyst through a pre-conversion process during alkaline OER result from dynamic Fe dissolution,identifying the origin of Fe-vacancy-induced enhanced OER *** functional theory(DFT)calculations and experimental results including X-ray absorption fine-structure spectroscopy,in situ UV-Vis spectroscopy,and in situ Raman spectroscopy reveal that the Fe vacancies could significantly promote the d-band center and valence states of adjacent co sites,alter the active site from Fe atom to co atom,accelerate the formation of high-valent active co^(4+)species,and reduce the energy barrier of the potential-determining step,thereby contribute to the significantly enhanced OER performance.

关键词： coFe oxyhydroxide Oxygen evolution reaction Fe vacancy Electrocatalysis Kinetics Reaction mechanisms

Bilayer borophene:an efficient catalyst for hydrogen evolution reaction

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Frontiers of chemical Science and Engineering 2024年第3期18卷 13-23页

作者： na Xing nan Gao Panbin Ye Xiaowei Yang Haifeng Wang Jijun Zhao college of Sciences/Xinjiang Production&construction corps Key laboratory of Advanced Energy Storage materials and Technologies Shihezi UniversityShihezi832000China Key laboratory of materials modification by laser Ion and Electron Beams(Ministry of Education)Dalian University of TechnologyDalian116024China School of materials Science and Engineering Taizhou UniversityTaizhou318000China

The electrocatalytic hydrogen evolution reaction is a crucial technique for green hydrogen ***,finding affordable,stable,and efficient catalyst materials to replace noble metal catalysts remains a significant *** experimental breakthroughs in the synthesis of two-dimensional bilayer borophene provide a theoretical framework for exploring their physical and chemical *** this study,we systematically considered nine types of bilayer borophenes as potential electrocatalysts for the hydrogen evolution *** first-principles calculations revealed that bilayer borophenes exhibit high stability and excellent conductivity,possessing a relatively large specific surface area with abundant active *** surface boron atoms and the bridge sites between two boron atoms can serve as active sites,displaying high activity for the hydrogen evolution ***,the Gibbs free energy change associated with adsorption for these bilayer borophenes can reach as low as−0.002 eV,and the Tafel reaction energy barriers are lower(0.70 eV)than those on ***,the hydrogen evolution reaction activity of these two-dimensional bilayer borophenes can be described by engineering their work ***,we considered the effect of pH on hydrogen evolution reaction activity,with significant activity observed in an acidic *** theoretical results reveal the excellent catalytic performance of two-dimensional bilayer borophenes and provide crucial guidance for the experimental exploration of multilayer boron for various energy applications.

关键词： bilayer borophene hydrogen evolution reaction work function pH effect

Unveiling the performance of a novel alkalizing bacterium Enterobacter ***-2 in immobilization of available cd

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Journal of Environmental Sciences 2024年第3期137卷 245-257页

作者： Yixin luo min liao Xiongxiong lu na Xu Xiaomei Xie Weiming Gao college of Environmental and Resource Science Zhejiang UniversityHangzhou 310058China Zhejiang Provincial Key laboratory of Agricultural Resources and Environment Hangzhou 310058China national Demonstration center for Experimental Environmental and Resources Education Zhejiang UniversityHangzhou 310058China

A novel alkalizing strain Enterobacter ***-2 that could resist 400 mg/l cd was isolated from cd-contaminated soil,which immobilized 96.05%cd^(2+)from *** distribution analysis demonstrated that more than half of the cd^(2+)was converted into extracellular precipitated cd through mobilization of the alkali-producing mechanism by the strain lYX-2,achieving the high immobilization efficiency of cd^(2+).Biosorption experiments revealed that strain lYX-2 had superior biosorption capacity of 48.28 mg/g for *** experiments with Brassica rapa *** performed with and without strain *** to control,15.92%bioavailable cd was converted to non-bioavailable cd and cd content in aboveground vegetables was decreased by 37.10%with addition of strain *** cd was mainly immobilized through extracellular precipitation,cell-surface biosorption and intracellular accumulation of strain lYX-2,which was investigated through cd distribution,Scanning Electron microscope and Energy-Dispersive X-ray Spectroscopy(SEm-EDS),Fourier Transform Infrared Spectroscopy(FT-IR),X-ray Photoelectron Spectroscopy(XPS)and Transmission Electron microscopy(TEm)*** addition,the application of strain lYX-2 significantly promoted the growth of vegetables about *** results indicated that highly cd-resistant alkalizing strain lYX-2,as a novel microbial passivator,had excellent ability and reuse value to achieve the remediation of cd-contaminated soil coupled with safe production of vegetables simultaneously.

关键词： cadmium Enterobacter sp.lYX-2 cd Immobilization microbial passivator

Interfacial growth of N,S-codoped mesoporous carbon onto biomass-derived carbon for superior potassium-ion storage

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nano Research 2024年第4期17卷 2619-2627页

作者： na Huang cheng Tang Hao Jiang Jie Sun Aijun Du Haijiao Zhang Institute of nanochemistry and nanobiology School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China School of chemistry and Physics and centre for materials Science Queensland University of TechnologyBrisbaneQLD 4001Australia Shanghai Engineering Research center of Hierarchical nanomaterials Frontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China

carbonaceous materials have been recognized as one of the most promising anode materials for potassium-ion batteries(PIBs)due to their abundant raw materials,controllable structure,superior conductivity,and good chemical ***,the large radius of K ions and the low potassium content of intercalation compounds result in the sluggish storage kinetics and low reversible capacity of carbon *** this work,we present a unique heteroatom-doped carbon composite(denoted as NS-mc/Sc)through a facile interfacial assembly route and simple heat-treatment process,where NS-mc is well grafted onto the biomass-derived spore carbon(Sc).This unique structural design endows it with abundant mesoporous channels,expanded layer spacing,and highly doped N and *** these merits,the NS-mc/Sc anode in PIBs exhibits a high reversible capacity of 350.4 mAh·g^(-1) at 100 mA·g^(-1) after 300 cycles,and an outstanding cycling ***,in-situ Raman spectra further verify the high reversibility of K ions insertion/***,theoretical simulations also reveal that the N,S dual-doping is an efficient approach for improving the potassium-ion storage performance of NS-mc/Sc.

关键词： mesoporous carbon(mc) biomass-derived carbon(Bc) N S co-doping interfacial assembly potassium-ion batteries(PIBs)

multimodal Fusion of Brain Imaging Data: methods and Applications

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machine Intelligence Research 2024年第1期21卷 136-152页

作者： na luo Weiyang Shi Zhengyi Yang ming Song Tianzi Jiang Brainnetome center and national laboratory of Pattern Recognition Institute of AutomationChinese Academy of SciencesBeijing 100190China School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100049China center for Excellence in Brain Science and Intelligence Technology Institute of AutomationChinese Academy of SciencesBeijing 100190China Research center for Augmented Intelligence Zhejiang LaboratoryHangzhou 311100China

Neuroimaging data typically include multiple modalities,such as structural or functional magnetic resonance imaging,dif-fusion tensor imaging,and positron emission tomography,which provide multiple views for observing and analyzing the *** lever-age the complementary representations of different modalities,multimodal fusion is consequently needed to dig out both inter-modality and intra-modality *** the exploited rich information,it is becoming popular to combine multiple modality data to ex-plore the structural and functional characteristics of the brain in both health and disease *** this paper,we first review a wide spectrum of advanced machine learning methodologies for fusing multimodal brain imaging data,broadly categorized into unsupervised and supervised learning *** by this,some representative applications are discussed,including how they help to under-stand the brain arealization,how they improve the prediction of behavioral phenotypes and brain aging,and how they accelerate the biomarker exploration of brain ***,we discuss some exciting emerging trends and important future ***,we intend to offer a comprehensive overview of brain imaging fusion methods and their successful applications,along with the chal-lenges imposed by multi-scale and big data,which arises an urgent demand on developing new models and platforms.

关键词： multimodal fusion supervised learning unsupervised learning brain atlas cognition brain disorders

Black hole shadows in Einstein-Bel-robinson gravity

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chinese Physics c 2024年第5期48卷 272-283页

作者： B.Hamil B.c.lütfüoğlu laboratoire de Physique mathématique et Subatomique Facultédes Sciences ExactesUniversitéConstantine 1ConstantineAlgeria Department of Physics University of Hradec KrálovéRokitanského 6250003 Hradec KrálovéCzechia

Gravity models given by higher-order scalar curvature corrections are believed to bear important consequences. Einstein-Bel-robinson (EBR) gravity with quartic curvature modification motivated Sajadi et al. to explore static spherically symmetric black hole solutions using perturbative methods. In this study, inspired by their work, we investigate AdS black hole shadows in EBR gravity and demonstrate how the gravity parameter alters the energy emission rate. Finally, we address the same problem in the presence of plasma, because the black holes are thought to be surrounded by a medium that changes the geodesic of photons.

关键词： black hole shadows Einstein-Bel-robinson gravity plasma

Effectiveness of magnetic resonance imaging and spiral computed tomography in the staging and treatment prognosis of colorectal cancer

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2135-2144页

作者： lu-na Bai lu-Xian Zhang Department of Radiology Zhongshan Hospital Xiamen UniversityXiamen 361004Fujian ProvinceChina

BAcKGroUND colorectal cancer(cRc)is a prevalent cancer type in clinical settings;its early signs can be difficult to detect,which often results in late-stage diagnoses in many *** early detection and diagnosis of cRc are crucial for improving treatment success and patient survival ***,imaging techniques have been hypothesized to be essential in managing cRc,with magnetic resonance imaging(mRI)and spiral computed tomography(ScT)playing a significant role in enhancing diagnostic and treatment *** To explore the effectiveness of mRI and ScT in the preoperative staging of cRc and the prognosis of laparoscopic *** Ninety-five individuals admitted to Zhongshan Hospital Xiamen University underwent mRI and ScT and were diagnosed with *** precision of mRI and ScT for the presurgical classification of cRc was assessed,and pathological staging was used as a *** operating characteristic curves were used to evaluate the diagnostic efficacy of blood volume,blood flow,time to peak,permeability surface,blood reflux constant,volume transfer constant,and extracellular extravascular space volume fraction on the prognosis of patients with *** Pathological biopsies confirmed the following cRc stages:23,23,32,and 17 at T1,T2,T3,and T4,*** were 39 cases at the N0 stage,22 at N1,34 at N2,44 at m0 stage,and 51 at *** pathological findings as the benchmark,the combined use of mRI and ScT for preoperative TNm staging in patients with cRc demonstrated superior sensitivity,specificity,and accuracy compared with either modality alone,with a statistically significant difference in accuracy(Pceiver operating characteristic curve analysis revealed the predictive values for laparoscopic treatment prognosis,as indicated by the areas under the curve for blood volume,blood flow,time to peak,and permeability surface,blood reflux constant,volume transfer constant,and extracellular extravascular space volu

关键词： magnetic resonance imaging Spiral computed tomography colorectal cancer Prognosis Receiver operating characteristic curve Retrospective study

Boosted sustained-release with iron-based mOF-derived mesoporouscarbon-spheres as a nitroimidazole drugs carrier

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Particuology 2024年第3期86卷 269-280页

作者： Danping Wu Jiaying Zou Junyi chen Yan li na ma Wei Dai college of chemistry and materials Science Zhejiang Normal UniversityJinhua321004China college of life Sciences Zhejiang Normal UniversityJinhua321004China college of Geography and Environmental Sciences Zhejiang Normal UniversityJinhua321004China

metal-organic framework(moF)with a buildable internal structure has aroused great interest focus as self-sacrificing precursors of porous carbon(Pc).However,as a drug carrier,the mOF-derived Pc developed thus far are generally composed of irregular powder shape due to their crystalline nature,which consequently causing the cerebral infarction,cerebral thrombosis,and other blood *** this article,we propose a novel approach to constructing amorphous carbon microspheres(Acms)by dis-torting the topological network through hydrothermal treatment precursors of mIl-101(Fe).Then,a distinctive mIl-101(Fe)-derived spherical porous carbons(mSPc)is achieved through high temperature calcination toward *** of the glucose initial concentration and hydrothermal treatment time on the sphericity of the as-prepared mesoporous msPc were investigated in *** the loading capacities and sustained-release performances of nitroimidazole drugs over msPc through simulation internal environment of human body at different pH values was systematically *** nitro-imidazole drugs loading rate and release time of msPc are 10% and 17 h under preferred ***,the mSPc exhibited very low toxicity on Hela cells and 293T cells at the concentrations tested(10-800μg ml^(-1)).This study,therefore,supports the potential of the mesoporous carbon spheres as a carrierfor nitroimidazole drug delivery.

关键词： Ornidazole metronidazole carbon spheres Sustained-release performance Biocompatibility

Isolated deep convections over the Tibetan Plateau in the rainy season during 2001–2020

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Atmospheric and Oceanic Science letters 2024年第5期17卷 16-21页

作者： Ying na chaofan li Riyu lu School of Atmospheric Science and Remote Sensing Wuxi UniversityWuxiChina Key laboratory of Ecosystem carbon Source and Sink China Meteorological Administration(ECSS-CMA)Wuxi UniversityWuxiChina center for monsoon System Research Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina State Key laboratory of Numerical modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina college of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina

The Tibetan Plateau(TP)is a prevalent region for convection systems due to its unique thermodynamic *** study investigated isolated deep convections(IDcs),which have a smaller spatial and temporal size than mesoscale convective systems(mcSs),over the TP in the rainy season(June-September)during 2001–*** authors used satellite precipitation and brightness temperature observations from the Global Precipitation measurement *** show that IDcs mainly concentrate over the southern *** IDc number per rainy season decreases from around 140 over the southern TP to around 10 over the northern TP,with an average *** initiation time of IDcs exhibits an obvious diurnal cycle,with the peak at 1400–1500 lST and the valley at 0900–1000 *** IDcs last less than five hours and more than half appear for only one *** generally have a cold cloud area of 7422.9 km^(2),containing a precipitation area of approximately 65%.The larger the IDc,the larger the fraction of intense precipitation it *** contribute approximately 20%–30%to total precipitation and approximately 30%–40%to extreme precipitation over the TP,with a larger percentage in July and August than in June and *** terms of spatial distribution,IDcs contribute more to both total precipitation and extreme precipitation over the TP compared to the surrounding plain *** over the TP account for a larger fraction than mcSs,indicating the important role of IDcs over the region.

关键词： Isolated deep convection Tibetan plateau climatological characteristics Precipitation contribution Extreme precipitation

mapping the intellectual structure and emerging trends for the application of nanomaterials in gastric cancer:A bibliometric study

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 2181-2199页

作者： Bo-na liu Xiao-li Gao Ying Piao Department of Oncology General Hospital of Northern Theater CommandShenyang 110015Liaoning ProvinceChina

BAcKGroUND Recent reviews have outlined the main nanomaterials used in relation to gastrointestinal tumors and described the basic properties of these ***,the research hotspots and trends in the application of nanomaterials in gastric cancer(Gc)remain *** To demonstrate the knowledge structure and evolutionary trends of research into the application of nanomaterials in *** Publications related to the application of nanomaterials in Gc were retrieved from the Web of Science core collection for this systematic review and bibliometric *** and citeSpace were used for bibliometric and visualization *** From 2000 to 2022,the application of nanomaterials in Gc developed *** keyword co-occurrence analysis showed that the related research topics were divided into three clusters:(1)The application of nanomaterials in Gc treatment;(2)The application and toxicity of nanomaterials in Gc diagnosis;and(3)The effects of nanomaterials on the biological behavior of Gc ***,silver nanoparticles,and green synthesis are the latest high-frequency keywords that represent promising future research *** The application of nanomaterials in Gc diagnosis and treatment and the mechanisms of their effects on Gc cells have been major themes in this field over the past 23 years.

关键词： nanomaterials Gastric cancer Bibliometrics Drug delivery VOSviewer citeSpace Systematic review