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Facile intercalation of alkali ions in WO_(3)for modulated electronic and optical properties:Implications for artificial synapses and chromogenic application

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 149-160页

作者： Changmeng huan Zihan lu Sil.n tang Yongqing Cai Qingqing Ke School of Microelectronics Science and Technology Sun Yat-sen UniversityZhuhai 519082China Guangdong Provincial Key laboratory of Optoelectronic Information Processing Chips and Systems Sun Yat-sen UniversityZhuhai 519082China Institute of Applied Physics and Materials Engineering University of MacaoTaipaMacao 999078China

Tungsten oxides(WO_(3))are widely recognized as multifunctional systems owing to the existence of rich *** diverse phases exhibit distinct octahedra-tilting patterns,generating substantial tunnels that are ideally suited for ***,a quantitative comprehension regarding the impact of distinct phases on the kinetics of intercalated conducting ions remains ***,we employ first-principles calculations to explore the spatial and orientational correlations of ion transport inγ-and h-WO_(3),shedding light on the relationship between diffusion barriers and the size of the conducting *** findings reveal that different types and concentrations of alkali-metals induce distinct and continuous lattice distortions in WO_(3)***,γ-WO_(3)is more appropriate to accommodate li+ions,exhibiting a diffusion barrier and coefficient of 0.25 eV and 9.31×10^(-8)cm^(2)s^(-1),***,h-WO_(3)features unidirectional and sizeable tunnels that facilitate the transport of K+ions with an even lower barrier and a high coefficient of 0.11 e V and 2.12×10^(-5)cm^(2)s^(-1),***,the introduction of alkali-metal into WO_(3)tunnels tends to introduce n-type conductivity by contributing s-electrons to the unoccupied W 5d states,resulting in enhanced conductivity and tunable electronic *** alkali metals in WO_(3)tunnels are prone to charge transfer,forming small polaronic states and modulating the light absorption in the visible and nearinfrared *** tunable electronic and optical properties,combined with the high diffusion coefficient,underscore the potential of WO_(3)in applications such as artificial synapses and chromogenic devices.

关键词： WO_(3)polymorphs ion insertion kinetic activity tunable electronic and optical properties iontronics

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Decreased human leukocyte antigen-D-related expression on CD14^(+)monocytes in patients with out-of-hospital cardiac arrest provided target temperature management therapy:a prospective observational study

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Emergency and Critical Care Medicine 2024年第1期4卷 16-21页

作者： huan Shao Wei Yuan Ziren tang Zhijiang Qi le An Qiang Zhang Chunsheng li Department of Emergency Medicine Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina Beijing Key laboratory of Cardiopulmonary Cerebral Resuscitation Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina.

Background:Post–cardiac arrest syndrome involves systemic inflammation,which causes subsequent neurological *** investigated the influence of targeted temperature management(TTM)therapy in patients with out-of-hospital cardiac arrest(OHCA)after return of spontaneous circulation(ROSC)by observing the changes in circulating CD14^(+)monocytes and the expression of human leukocyte antigen D–related(HlA-DR)and programmed cell death ligand 1(PD-l1)in CD14^(+)***:Adult patients admitted to the emergency department of Beijing Chao-Yang Hospital after OHCA between January 2017 and March 2018 were included in this *** control subjects,10 patients with OHCA,and 37 patients with OHCA who received 72 hours of TTM therapy were *** blood samples of patients in the OHCA and TTM groups were collected on Days 1 and 3(D1 and D3)after ROSC and evaluated for HlA-DR and PD-l1 expression on CD14^(+)monocytes using flow ***:Compared with control subjects,the percentage of circulating CD14^(+)monocytes,HlA-DR+/CD14^(+)monocyte ratios,and mean fluorescence intensity were significantly decreased in patients with *** ROSC,HlA-DR expression in CD14^(+)monocytes in the TTM group was lower than that in patients with ***,there were no significant differences in the percentage of PD-l1+/CD14^(+)monocytes or the mean fluorescence intensity between patients with OHCA and healthy ***:After ROSC,circulating CD14^(+)monocytes and HlA-DR+/CD14^(+)monocyte ratios decreased significantly in patients with *** leukocyte antigen D–related expression in CD14^(+)monocytes was lower in patients treated with TTM.

关键词： Human leukocyte antigen D-related Monocytes Out-of-hospital cardiac arrest Target temperature management

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Facile intercalation of alkali ions in WOfor modulated electronic and optical properties: Implications for artificial synapses and chromogenic application

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Science China(Physics,Mechanics & Astronomy) 2024年

作者： Changmeng huan Zihan lu Sil.n tang Yongqing Cai Qingqing Ke Guangdong Provincial Key laboratory of Optoelectronic Information Processing Chips and Systems Sun Yat-sen University Institute of Applied Physics and Materials Engineering University of Macau School of Microelectronics Science and Technology Sun Yat-sen University

Tungsten oxides(WO3) are widely recognized as multifunctional systems owing to the existence of rich polymorphs. These diverse phases exhibit distinct octahedra-tilting patterns, generating substantial tunnels that are ideally suited for ***, a quantitative comprehension regarding the impact of distinct phases on the kinetics of intercalated conducting ions remains lacking. Herein, we employ first-principles calculations to explore the spatial and orientational correlations of ion transport in γ-and h-WO3, shedding light on the relationship between diffusion barriers and the size of the conducting ions. Our findings reveal that different types and concentrations of alkali-metals induce distinct and continuous lattice distortions in WO3polymorphs. Specifically, γ-WO3is more appropriate to accommodate li+ions, exhibiting a diffusion barrier and coefficient of0.25 e V and 9.31×10-8cm2s-1, respectively. Conversely, h-WO3features unidirectional and sizeable tunnels that facilitate the transport of K+ions with an even lower barrier and a high coefficient of 0.11 eV and 2.12×10-5cm2s-1, respectively. Furthermore, the introduction of alkali-metal into WO3tunnels tends to introduce n-type conductivity by contributing s-electrons to the unoccupied W 5d states, resulting in enhanced conductivity and tunable electronic structures. These alkali metals in WO3tunnels are prone to charge transfer, forming small polaronic states and modulating the light absorption in the visible and nearinfrared regions. These tunable electronic and optical properties, combined with the high diffusion coefficient, underscore the potential of WO3in applications such as artificial synapses and chromogenic devices.

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Development and validation of a nomogram for predicting in-hospital mortality of intensive care unit patients with liver cirrhosis

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World Journal of Hepatology 2024年第4期16卷 625-639页

作者： Xiao-Wei tang Wen-Sen Ren Shu huang Kang Zou huan Xu Xiao-Min Shi Wei Zhang lei Shi Mu-Han lü Department of Gastroenterology The Affiliated Hospital of Southwest Medical UniversityLuzhou 646099Sichuan ProvinceChina nuclear Medicine and Molecular Imaging Key laboratory The Affiliated Hospital of Southwest Medical UniversityLuzhou 646099Sichuan ProvinceChina Department of Gastroenterology Lianshui People’Hospital of Kangda College Affiliated to Nanjing Medical UniversityHuaian 223499Jiangsu ProvinceChina

BACKGROUnD liver cirrhosis patients admitted to intensive care unit(ICU)have a high mortality *** To establish and validate a nomogram for predicting in-hospital mortality of ICU patients with liver *** We extracted demographic,etiological,vital sign,laboratory test,comorbidity,complication,treatment,and severity score data of liver cirrhosis patients from the Medical Information Mart for Intensive Care IV(MIMIC-IV)and electronic ICU(eICU)collaborative research database(eICU-CRD).Predictor selection and model building were based on the MIMIC-IV *** variables selected through least absolute shrinkage and selection operator analysis were further screened through multivariate regression analysis to obtain final *** final predictors were included in the multivariate logistic regression model,which was used to construct a ***,we conducted external validation using the *** area under the receiver operating characteristic curve(AUC),decision curve,and calibration curve were used to assess the efficacy of the *** Risk factors,including the mean respiratory rate,mean systolic blood pressure,mean heart rate,white blood cells,international.normalized ratio,total bilirubin,age,invasive ventilation,vasopressor use,maximum stage of acute kidney injury,and sequential organ failure assessment score,were included in the multivariate logistic *** model achieved AUCs of 0.864 and 0.808 in the MIMIC-IV and eICU-CRD databases,*** calibration curve also confirmed the predictive ability of the model,while the decision curve confirmed its cl.nical *** The nomogram has high accuracy in predicting in-hospital *** the included predictors may help improve the prognosis of patients.

关键词： liver cirrhosis Intensive care unit nomogram Predicting model Mortality

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Multifunctional SnO_(2) QDs/MXene Heterostructures as laminar Interlayers for Improved Polysulfide Conversion and lithium Plating Behavior

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nano-Micro letters 2024年第11期16卷 156-169页

作者： Shungui Deng Weiwei Sun Jiawei tang Mohammad Jafarpour Frank nüesch Jakob Heier Chuanfang Zhang College of Materials Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China laboratory for Functional Polymers Swiss Federal Laboratories for Materials Science and Technology(EMPA)Überlandstrasse 1298600 DübendorfSwitzerland Institute of Materials Science and Engineering Ecole Polytechnique Fédérale de Lausanne(EPFL)Station 121015 LausanneSwitzerland Key laboratory of Quantum Materials and Devices of Ministry of Education School of PhysicsSoutheast UniversityNanjing 211189People’s Republic of China SEU‑FEI nano‑Pico Center Key Laboratory of MEMS of Ministry of EducationSoutheast UniversityNanjing 210096People’s Republic of China

Poor cycl.ng stability in lithium–sulfur(li–S)batteries necessitates advanced electrode/electrolyte design and innovative interlayer *** catalysis has emerged as a promising approach,leveraging the adsorption and catalytic performance on lithium polysulfides(liPSs)to inhibit liPSs shuttl.ng and improve redox *** this study,we report an ultrathin and laminar SnO_(2)@MXene heterostructure interlayer(SnO_(2)@MX),where SnO_(2) quantum dots(QDs)are uniformly distributed across the MXene *** combined structure of SnO_(2) QDs and MXene,al.ng with the creation of numerous active boundary sites with coordination electron environments,plays a critical role in manipulating the catalytic kinetics of sulfur *** li–S cell with the SnO_(2)@MX-modified separator not only demonstrates superior electrochemical performance compared to cells with a bare separator but also induces homogeneous li deposition during *** a result,an areal capacity of 7.6 mAh cm^(-2) under a sulfur loading of 7.5 mg cm^(-2) and a high stability over 500 cycles are *** work demonstrates a feasible strategy of utilizing a laminar separator interlayer for advanced li–S batteries awaiting commercialization and may shed light on the understanding of heterostructure catalysis with enhanced reaction kinetics.

关键词： lithium-sulfur battery Heterogeneous catalysis Heterostructure Redox kinetics lithium dendrites

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nuclear charge radius predictions by kernel ridge regression with odd-even effects

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nuclear Science and Techniques 2024年第2期35卷 94-102页

作者： lu tang Zhen-Hua Zhang Mathematics and Physics Department North China Electric Power UniversityBeijing 102206China Hebei Key laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China

The extended kernel ridge regression(EKRR)method with odd-even effects was adopted to improve the description of the nuclear charge radius using five commonly used nuclear *** are:(i)the isospin-dependent A^(1∕3) formula,(ii)relativistic continuum Hartree-Bogoliubov(RCHB)theory,(iii)Hartree-Fock-Bogoliubov(HFB)model HFB25,(iv)the Weizsacker-Skyrme(WS)model WS*,and(v)HFB25**** the last two models,the charge radii were calculated using a five-parameter formula with the nuclear shell corrections and deformations obtained from the WS and HFB25 models,*** each model,the resultant root-mean-square deviation for the 1014 nuclei with proton number Z≥8 can be significantly reduced to 0.009-0.013 fm after considering the modification with the EKRR *** best among them was the RCHB model,with a root-mean-square deviation of 0.0092 *** extrapolation abilities of the KRR and EKRR methods for the neutron-rich region were examined,and it was found that after considering the odd-even effects,the extrapolation power was improved compared with that of the original KRR *** strong odd-even staggering of nuclear charge radii of Ca and Cu isotopes and the abrupt kinks across the neutron n=126 and 82 shell closures were also calculated and could be reproduced quite well by calculations using the EKRR method.

关键词： nuclear charge radius Machine learning Kernel ridge regression method

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Thin-film flow technology in controll.ng the organization of materials and their properties Special Collection:Distinguished Australian Researchers

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Aggregate 2024年第1期5卷 115-129页

作者： Clarence Chuah Xuan luo Javad Tavakoli Youhong tang Col.n l.Raston Fl.nders Institute for nanoscale Science and Technology College of Science and EngineeringFlinders UniversityAdelaideSouth AustraliaAustralia Centre for Health Technologies School of Biomedical EngineeringFaculty of Engineering and Information TechnologyUniversity of Technology SydneySydneyNew South WalesAustralia

Centrifugal and shear forces are produced when solids or liquids *** systems and devices that use these forces,such as dynamic thin-film flow technology,are evolving continuously,improve material structure-property relationships at the nanoscale,representing a rapidly thriving and expanding field of research high with green chemistry metrics,consolidated at the inception of *** vortex fluidic device(VFD)provides many advantages over conventional batch processing,with fluidic waves causing high shear and producing large surface areas for micro-mixing as well as rapid mass and heat transfer,enabl.ng reactions beyond diffusion *** these abilities allows for a green and innovative approach to altering materials for various research and industry applications by controll.ng small-scale flows and regulating molecular and macromolecular chemical reactivity,self-organization phenomena,and the synthesis of novel *** review highlights the aptitude of the VFD as clean technology,with an increase in efficiency for a diversity of top-down,bottom-up,and novel material transformations which benefit from effective vortex-based processing to control material structure-property relationships.

关键词： material nanoscale structure-property relationship thin film flow technology vortex fluidic device

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The reformation of catalyst:From a trial-and-error synthesis to rational design

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nano Research 2024年第4期17卷 3261-3301页

作者： ligang Wang Jiabin Wu Shunwu Wang huan liu Yao Wang Dingsheng Wang Department of Chemistry Tsinghua UniversityBeijing 100084China

The appropriate catalysts can accelerate the reaction rate and effectively boost the efficient conversion of various molecules,which is of great importance in the study of chemistry,chemical industry,energy,materials and environmental ***,efficient,environmentally friendly,and easy to operate synthesis methods have been used to prepare various types of *** previous studies have reported the synthesis and characterization of the aforementioned catalysts,more still remain in trial and error methods,without in-depth consideration and improvement of traditional synthesis ***,we comprehensively summarize and compare the preparation methods of the trial-and-error synthesis strategy,structure–activity relationships and density functional theory(DFT)guided catalysts rational design for nanomaterials and atomically dispersed *** also discuss in detail the utilization of the nanomaterials and single atom catalysts for converting small molecules(H_(2)O,O_(2),CO_(2),n_(2),etc.)into value-added products driven by electrocatalysis,photocatalysis,and ***,the chall.nges and outlooks of mass preparation and production of efficient and green catalysts through conventional trial and error synthesis and DFT theory are featured in accordance with its current development.

关键词： trial-and-error synthesis structure–activity relationships density functional theory(DFT)guidance nanomaterials atomically dispersed catalysts

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Renewable biosynthesis of isoprene from wastewater through a synthetic biology approach:the role of individual organic compounds

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Frontiers of Environmental Science & Engineering 2024年第3期18卷 13-24页

作者： Min Yang Xianghui li Weixiang Chao Xiang Gao huan Wang lu lu State Key laboratory of Urban Water Resource and Environment School of Civil and Environmental EngineeringHarbin Institute of TechnologyShenzhen 518055China Center for Materials Synthetic Biology CAS Key Laboratory of Quantitative Engineering Biology of CASShenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academic of ScienceShenzhen 518000China Institute of Urban Ecology and Environmental Technology School of Materials and Environmental EngineeringShenzhen Polytechnic UniversityShenzhen 518055China

The biosynthesis of isoprene offers a more sustainable alternative to fossil fuel-based approaches,yet its success has been largely limited to pure organic compounds and the cost remains a *** study proposes a waste-to-wealth strategy for isoprene biosynthesis utilizing genetically engineered *** bacteria to convert organic waste from real food *** impact of organic compounds present in wastewater on *** growth and isoprene production was systematically *** results demonstrated that with filtration pretreatment of wastewater,isoprene yield,and production achieved 115 mg/g COD and 7.1 mg/(l·h),***,even without pretreatment,isoprene yield only decreased by~24%,indicating promising ***,maltose,glycerol,and lactate are effective substrates for isoprene biosynthesis,whereas starch,protein,and acetate do not support *** *** optimum C/n ratio for isoprene production was found to be 8:***,augmenting essential.nutrients in wastewater elevated the isoprene yield increased to 159 mg/g *** wastewater biosynthesis significantly reduced the cost(44%–53%decrease,p-valuend CO_(2)emission(46%–55%decrease,p-valuentation and fossil fuel–based *** study introduced a more sustainable and economically viable approach to isoprene synthesis,offering an avenue for resource recovery from wastewater.

关键词： Wastewater Resource recovery Genetic engineering Biosynthesis Isoprene

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High-precision model.ng of tide-induced 3-D magnetic field and analysis of geomagnetic satellite orbit requirements

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Science China Earth Sciences 2024年第1期67卷 165-178页

作者： Zhengyong REn Cong YAnG Hongbo YAO Xu tang Jingtian tang Keke ZHAnG Key laboratory of Metallogenic Prediction of nonferrous Metals and Geological Environment Monitoring Ministry of Education Central South UniversityChangsha 410083China Hunan Key laboratory of nonferrous Resources and Geological Hazards Exploration Changsha 410083China School of Geosciences and Info-Physics Central South UniversityChangsha 410083China State Key laboratory of l.nar and Pl.netary Sciences Macao University of Science and TechnologyMacao 999078China

Ground-based magnetic observatories and geomagnetic satellites can observe the induced magnetic field generated by the motion of seawater containing sodium and chlorine *** the three-dimensional(3-D)spatial distribution of tide-induced magnetic fields(TIMF)is crucial for inverting the electrical conductivity structure of the oceanic *** also serves as an essential basis for designing optimal geomagnetic observatories and satellite ***,existing methods for simulating TIMF suffer from limitations in inaccurately model.ng realistic coastl.nes,heterogeneous l.nd and sea surface properties,and complex deep Earth structures,thereby the interpretational level of TIMF data is *** overcome this issue,we developed a tetrahedral-based finite element method for simulating TIMF,which can efficiently approximate realistic coastl.nes,heterogeneous l.nd and sea surface properties,and complex deep Earth ***,we derived the boundary value problem for the seawater motion-induced electromagnetic field,which was solved using the vector finite element method based on tetrahedral ***,using the latest ocean depth and seafloor sediment layer models,we constructed a 3-D conductivity model of the Earth,which includes realistic coastl.nes,heterogeneous l.nd and sea conductivity *** then computed the TIMF using the M_(2)tidal source as an example and validated our method by comparing it with results obtained from spherical harmonic finite element and integral equation ***,utilizing the computed high-precision M_(2),n_(2),and O1 TIMF signals,we marked global observatories capable of observing strong M_(2),n_(2),and O1 TIMF signals and predicted alternative stations suitable for tide signal ***,we calculated TIMF at heights of 450 and 200 km for the Macao Science Satellite 1 and its subsequent *** results indicate that the amplitude of the tidal-induced magnetic field at

关键词： Ocean motional induction Electromagnetic induction Ocean tides Geomagnetic satellite Macao Science Satellite 1

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