检索结果-南通市图书馆

Bioaccessibility and health risk assessment of hydrophobic organic pollutants in soils from four typical industrial contaminated sites in china

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第1期147卷 282-293页

作者： Shi-Ping Ou Xiao-Liang Liao Zi-Tao Huang Yan-Cong Hu Zongwei Cai Zhi-Feng Chen Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and HealthSchool of Environmental Science and EngineeringGuangdong University of TechnologyGuangzhou 510006China State Key Laboratory of Environmental and Biological Analysis Department of ChemistryHong Kong Baptist UniversityHong Kong 999077China

There have been reports of potential health risks for people from hydrophobic organic pollutants,such as polycyclic aromatic hydrocarbons(PAHs),polychlorinated hydrocarbons(PCHs),and organophosphate flame retardants(OPFRs).When a contaminated site is used for residential housing or public utility and recreation areas,the soil-bound organic pollutantsmight pose a threat to human *** this study,we investigated the contamination profiles and potential risks to human health of 15 PAHs,6 PCHs,and 12 OPFRs in soils from four contaminated sites in *** used an in vitro method to determine the oral bioaccessibility of soil *** PAHswere found at concentrations ranging from26.4 ng/g to 987 ng/***(0.27-14.3 ng/g)and OPFRs(6.30-310 ng/g)were detected,but at low levels compared to earlier *** levels of PAHs,PCHs,and OPFRs released from contaminated soils into simulated gastrointestinal fluids ranged from 1.74%to 91.0%,2.51%to 39.6%,and 1.37%to 96.9%,*** on both spiked and unspiked samples,we found that the oral bioaccessibility of pollutantswas correlated with their logKow andmolecularweight,and the total organic carbon content and pH of *** in 13 out of 38 contaminated soil samples posed potential high risks to *** considering oral bioaccessibility,nine soils still posed potential risks,while the risks in the remaining soils became *** contribution of this paper is that it corrects the health risk of soil-bound organic pollutants by detecting bioaccessibility in actual soils from different contaminated sites.

关键词： Contaminated soil Hydrophobic organic pollutant Polycyclic aromatic hydrocarbon Oral bioaccessibility Risk assessment

Bifunctional bridging capping layer enables 24.5%efficiency of perovskite solar cells with polymer-based hole transport materials

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science china Chemistry 2025年第1期68卷 350-359页

作者： Can Zhu Yiyang Wang Lei Meng Beibei Qiu Jing Li Shucheng Qin Ke Hu Xin Jiang Wenbin Lai Minchao Liu Zhe Liu Chenxing Lu Jinyuan Zhang Yongfang Li Beijing national Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Science University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information EngineeringZhejiang Normal UniversityJinhua 321004China Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Laboratory of Advanced Optoelectronic Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

Developing a bridge capping layer between perovskite and hole transport layer materials(HTMs)in the n-i-p perovskite solar cells(pero-SCs)is an effective approach to modify the morphology of HTMs and passivate the perovskite ***,we select the quinoxaline-based bifunctional passivation agent,quinoxalin-6-yl-methylamine hydrochloride(Qx MACl),as the bridging layer,and a D-A copolymer PBQ12 containing the same quinoxaline unit as an HTM for the n-i-p *** to theπ-πstacking among the common quinoxaline units in the bridge layer and HTM,Qx MACl induces theπ-πstacking of the PBQ12 film and improves the film morphology of HTMs with better ***,Qx MACl can effectively passivate the perovskite surface,and PBQ12 possesses appropriate energy levels and high hole *** pero-SCs based on FAPbI_(3)with PBQ12/Qx MACl treatment showed a higher power conversion efficiency(PCE)of 24.05%and outstanding stability,maintaining 95.4%and 92.1%of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at 85℃,*** further enhance the PCE of the PBQ12/Qx MACl-based devices,we developed a non-metal ion dopant for the PBQ12 *** trace doping of PBQ12 HTM by the non-metal ion dopant,the PCE of the PBQ12/Qx MACl-based devices reached 25.24%(the calibrated PCE of 24.55%by the national Institute of Metrology,china).

关键词： D-A copolymer hole transport materials bifunctional bridge capping layer passivation perovskite solar cells

Tribo-piezoelectric hybrid nanogenerator based on temporary solution template process

在线全文

学校读者我要写书评

暂无评论

Science china(Technological Sciences) 2025年第2期68卷 97-105页

作者： Jinxian ZHANG Peng PAN Zhengchun YANG Jie HE Peifeng ZENG College of Integrated Circuit Science and Engineering Tianjin University of TechnologyTianjin 300382China

In this study,a friction piezoelectric hybrid nanogenerator(HNG)with a sponge-like structure was developed.A novel temporary solution template process was proposed to create smaller,uniformly distributed pores within the sponge structure,allowing for the complete volatilization of the porous agent without causing structural *** output voltage of the porous HNG structure was nearly twice that of its solid structure,demonstrating superior electrical output performance.A peak-to-peak open circuit voltage of 168 V,a short circuit current density of 36.41μA cm^(-2),and a maximum power density of 32 W m^(-2) were obtained at a load resistance of 200 MΩ by periodically compressing an HNG with a dimension of 0.8 cm×0.8 *** generated electricity was sufficient to directly illuminate 180 tandem white LEDs and power small electronic *** addition,this study shows that the HNG could detect electrical signals from different parts of the human body during movement,suggesting significant potential for applications in energy harvesting and motion sensing.

关键词： PDMS hybrid nanogenerator triboelectric piezoelectric flexible composites

同方期刊数据库

On the Multi-q Characteristics of Magnetic Ground States of Honeycomb Cobalt Oxides

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2025年第2期42卷 98-108页

作者： Yuchen Gu Xianghong Jin Yuan Li International Center for Quantum Materials School of PhysicsPeking UniversityBeijing 100871China Beijing national Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

The Kitaev honeycomb model has received significant attention due to its exactly solvable quantum spin liquid ground states and fractionalized *** cobalt oxides have been considered as a promising platform for realizing this ***,in contrast to the conventional wisdom regarding the single-q zigzag magnetic order inferred from previous studies of the candidate materials Na_(2)IrO_(3) and α-RuCl_(3),recent experiments on two representative honeycomb cobalt oxides,hexagonal Na_(2)Co_(2)TeO_(6) and monoclinic Na_(3)Co_(2)SbO_(6),have uncovered evidence for more complex multi-q zigzag order *** review surveys the experimental strategies used to distinguish between single-and multi-q orders,along with the crystallographic symmetries of cobalt oxides,in comparison with previously studied *** general formation mechanism of multi-q order is also briefly *** goal is to provide a solid ground for examining the relevance of multi-q order in honeycomb cobalt oxides and discuss its implications for the microscopic model of these intriguing quantum magnets.

关键词： cobalt oxides quantum

Unravel the Spinodal Decomposition Kinetics in(FeCoCrNi)85(AlCu)15 Alloy through Small-Angle Neutron Scattering

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2025年第1期38卷 86-92页

作者： Shun-Fu Xie Han-Qiu Jiang Zhen-Hua Xie Wei-Wen Zhang Yu-Bin Ke School of Mechanical and Automotive Engineering South China University of TechnologyGuangzhou510641China Spallation Neutron Source Science Center Dongguan523803China Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China

High entropy alloys(HEAs)constituted of single solid solution phase,but remains chemical inhomogeneity in nature due to its multi-principal ***,existence of nanoscale spinodal decomposition(SD)phase in matrix was found to have significant impact on the properties of ***,the morphology evolution and the kinetics of SD is not clear,which hinders in-depth understanding of the structure-property *** this study,we examine the spinodal structures in(FeCoCrNi)85(AlCu)15 HEAs at different states using in-situ small-angle neutron scattering(SANS),in conjunction with transmission electron microscopy *** result demonstrates that SD occurred when aging the HEA samples at temperatures ranging from 500 to 800℃,which leads to the phase constitution of NiAlCu-rich and FeCoCr-rich spinodal phases,L1_(2)ordered phases,and FCC *** characteristic wavelength of SD(λ_(SD))grows from 5.31 to 51.26 nm when aging temperature rises from 500 to 800℃,which explains the enhancement of the alloy’s *** SD kinetics was unraveled by fitting the time-dependentλ_(SD)through in-situ SANS measurement at 700℃.During isothermal treatment at 700℃,theλ_(SD)increases from 10.42 to 17.43 nm with prolonged time,and SD is in the late stage from the exponential trend of theλ_(SD)over ***,comparing with aging temperature,the aging time has a relatively minor impact on the coarsening of SD.

关键词： High entropy alloys Spinodal decomposition Small-angle neutron scattering Kinetics

Regulation of mitochondrial network architecture and function in mesenchymal stem cells by micropatterned surfaces

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Regenerative Biomaterials 2025年第1期4卷 47-57页

作者： Zixuan Dong Weiju Han Panyu Jiang Lijing Hao Xiaoling Fu The Second Affiliated Hospital School of Biomedical Sciences and EngineeringSouth China University of TechnologyGuangzhou 511442China national Engineering research Center for Tissue Restoration and Reconstruction and Innovation Center for Tissue Restoration and Reconstruction Guangzhou 510006China Laboratory of Biomedical Engineering of Guangdong Province South China University of TechnologyGuangzhou 510006China School of Materials Science and Engineering South China University of TechnologyGuangzhou 510006China

Mitochondrial network architecture,which is closely related to mitochondrial function,is mechanically sensitive and regulated by multiple ***,the effects of microtopographic cues on mitochondria remain poorly ***,polycaprolactone(PCL)surfaces were used as models to investigate how micropatterns regulate mitochondrial network architecture and function in rat adipose-derived stem cells(rASCs).It was found that large pit(LP)-induced rASCs to form larger and more complex mitochondrial ***,the expression of key genes related to mitochondrial dynamics revealed that mitochondrial fusion(MFN1 and MFN2)and midzone fission(DRP1 and MFF)were increased in rASCs on *** contrast,the middle pit(MP)-enhanced mitochondrial biogenesis,as evidenced by the larger mitochondrial area and higher expression of *** LP and MP promoted ATP production in *** is likely that LP increased ATP levels through modulating mitochondrial network architecture while MP stimulated mitochondria biogenesis to do *** study clarified the regulation of micropatterned surfaces on mitochondria,highlighting the potential of LP and MP as a simple platform to stimulate mitochondria and the subsequent cellular function of MSCs.

关键词： micropatterned surface mesenchymal stem cells mitochondrial network architecture mitochondrial function regulation of mitochondria

Impact of aerosol-radiation interaction and heterogeneous chemistry on the winter decreasing PM_(2.5)and increasing O_(3)in Eastern china 2014–2020

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第5期151卷 469-483页

作者： Yasong Li Tijian Wang Qin’geng Wang Mengmeng Li Yawei Qu Hao Wu Min Xie School of the Environment Nanjing UniversityNanjing 210023China School of Atmospheric Sciences Nanjing UniversityNanjing 210023China College of Intelligent Science and Control Engineering Jinling Institute of TechnologyNanjing 211169China Key Laboratory of Transportation Meteorology of china Meteorological Administration Nanjing Joint Institute for Atmospheric SciencesNanjing 210041China School of Environment Nanjing Normal UniversityNanjing 210023China

In the context of the prevalent winter air quality issues in china marked by declining PM_(2.5)and rising O_(3),this study employed amodified WRF-Chem model to examine the aerosol radiation interaction(ARI),heterogeneous chemistry(AHC),and their combined impact(ALL)on the variations in O_(3)and PM_(2.5)during the 2014–2020 in eastern *** analysis confirmed that ARI curtailed O_(3)while elevating PM_(2.5).AHC reduced O_(3)through heterogeneous absorption of NOx and hydroxideswhile notably fostering fine-grained sulfate,resulting in a PM_(2.5)*** reductions mitigated the inhibitory impact of ARI on meteorological fields and photolysis *** reduction individually without aerosol feedback led to a 5.43 ppb O_(3)increase and a 22.89μg/m^(3)PM_(2.5)*** and AHC amplified the emission-reduction-induced(ERI)O_(3)rise by 1.83 and 0.31 ppb,*** response of ARI to emission diminution brought about a modest PM_(2.5)increase of 0.31μg/m^(3).Conversely,AHC,acting as the primary contributor,caused a noteworthy PM_(2.5)decrease of 4.60μg/m^(3).As efforts concentrate on reducing PM_(2.5),the promotion of ARI on PM_(2.5)counterbalanced the efficacy of emission reduction and the AHC-induced strengthening of PM_(2.5)*** ALL magnified the ERI O_(3)increase by 38.9%and PM_(2.5)decrease by 18.7%.Sensitivity experiments with different degrees of emission reduction demonstrated a consistent linear relationship between the ALL-induced enhancement of O_(3)increase and PM_(2.5)decrease to the ERI PM_(2.5)*** investigation revealed the complex connection between emissions and aerosol feedback in influencing air quality.

关键词： Aerosol-radiation interaction Heterogeneous chemistry O_(3)increase PM_(2.5)decrease Emission reduction

Establishing a new testing protocol of the electrochemical stability window for electric double-layer capacitors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science china Chemistry 2025年第1期68卷 217-225页

作者： Ruilin Hou Xiaoxi Zhao Tingting Liang Qingyun Dou Shan Xu Xingbin Yan School of Materials Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China Laboratory of Clean Energy Chemistry and Materials Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Industrial Analysis and Testing Guangdong Academy of ScienceGuangzhou 510651China College of Engineering and Applied Sciences Nanjing UniversityNanjing 210093China

The electrochemical stability window(ESW)is crucial for determining the energy density of electric double-layer capacitors(EDLCs).However,current ESW testing protocols of EDLCs are strongly affected by artificial factors,thereby leading to unreliable *** solve this problem,we first identify the key shortcomings of the traditional protocols by analyzing their test ***,taking an aqueous carbon-based EDLC as an example,we design a side reaction descriptor to represent the response difference in the charging capacitance to side reactions between the cyclic voltammetry and galvanostatic chargedischarge *** the aid of this descriptor,we propose a new ESW testing protocol,which is not only able to completely avoid the adverse influence of subjective factors but also fully consider the operating condition *** protocol can be extended from the single electrode to the full *** work proposes a more rigorous definition of ESW and provides a reliable protocol for evaluating the ESW of EDLCs.

关键词： electric double-layer capacitors electrochemical stability window testing protocol side reaction descriptor operating limitation

Frog tongue-inspired wettable microfibers for particles capture

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2025年第3期70卷 383-389页

作者： Jiahui Guo Lingyu Sun Han Zhang Yuanjin Zhao Department of Rheumatology and Immunology Nanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Shenzhen research Institute Southeast UniversityShenzhen 518071China Chemistry and Biomedicine Innovation Center ChemBioMed Interdisciplinary Research CenterNanjing UniversityNanjing 210023China

Fibers have been of great significance in our daily lives,especially in the industrial production of *** in this area has been focused on developing microfibers with superior functions to enhance the filtration performances of the ***,inspired by the frog’s predation mechanism using its tongues to swiftly grab flying insects,we propose novel porous wettable microfibers from microfluidics to efficiently capture particles in the air for *** pre-dispersing LP emulsions into polyurethane(PU),porous microfibers dispersed with oil droplets could be continuously spun from a co-flow microfluidic device based on the quick phase inversion of *** design an optimal system with frog-tongue-like interfacial adhesion properties,the wettability performances of the porous microfibers are investigated under full,partial,and no oil coverage *** implemented in a mask,the 3D patterned networks based on the frog-tongue-inspired microfibers have been proven with remarkable particle capture performances while maintaining good air *** on these features,we believe that frog-tongue-inspired microfibers and their derived masks are of practical significance in multiple applications.

关键词： Bioinspired Microfluidics Microfiber Wettability Mask