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Activation of peroxymonosulfate by sustainable biomass-based carbon nanotubes for controlling the spread of plant viruses in water environments

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Journal of Environmental Sciences 2025年第3期149卷 99-112页

作者： Jian Tang Yujie wang JunMa Yujie Chen ming Chen College of Resources and Environment Yangtze UniversityWuhan 430100China Key Laboratory of Reservoir Aquatic Environment Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing 400714China Chongqing School University of Chinese Academy of SciencesChongqing 400714China School of Geography and Tourism Chongqing Normal UniversityChongqing 400714China

With the increasing demand for water in hydroponic systems and agricultural irrigation,viral diseases have seriously affected the yield and quality of *** removing plant viruses in water environments,virus transmission can be prevented and agricultural production and ecosystems can be *** so far,there have been few reports on the removal of plant viruses in water ***,in this study,easily recyclable biomass-based carbon nanotubes catalysts were synthesized with varying metal activities to activate peroxymonosulfate(PMS).Among them,the magnetic 0.125Fe@NCNTs-1/PMS system showed the best overall removal performance against pepper mild mottle virus,with a 5.9 log_(10)removal within 1 ***,the key reactive species in the 0.125Fe@NCNTs-1/PMS system is^(1)O_(2),which can maintain good removal effect in real water matrices(river water and tap water).Through RNA fragment analyses and label free analysis,it was found that this system could effectively cleave virus particles,destroy viral proteins and expose their *** capsid protein of pepper mild mottle virus was effectively decomposed where serine may be the main attacking sites by^(1)O_(2).Long viral RNA fragments(3349 and 1642 nt)were cut into smaller fragments(∼160 nt)and caused their *** summary,this study contributes to controlling the spread of plant viruses in real water environment,which will potentially help protect agricultural production and food safety,and improve the health and sustainability of ecosystems.

关键词： Pepper mild mottle virus Removal Plant virus spread Biomass-based carbon nanotubes Water environments

Turbulent Agglomeration of Microparticles in a Cylinder Wake Flow Using LES-DEM:Focusing on the Effect of the Reynolds Number

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Journal of Thermal Science 2025年第1期34卷 34-49页

作者： wang Shuang MU Lin LI Xue XIE Jun DONG ming School of Energy and Power Engineering Dalian University of TechnologyDalian 116024China School of Optical Information and Energy Engineering Wuhan Institute of TechnologyWuhan 430205China School of Energy and Environment Shenyang Aerospace UniversityShenyang 110136China

Turbulent agglomeration is viewed as a promising technology for enhancing fine particle removal *** better understand particle transport,agglomeration behaviors,and fluid-particle interactions,we numerically explored these phenomena under cylindrical vortex wake influence using a coupled large eddy simulation and discrete element method(LES-DEM)*** validity of the LES approach was verified by comparison with available direct numerical simulation(DNS)*** adopted the Johnson-Kendall-Roberts(JKR)contact model for particle-particle *** particle dispersion and agglomeration characteristics of particles with different diameters(d_(p)=2-20μm)in the laminar and transition of shear layer(TrSL)flow regimes were *** particles were concentrated at the vortex centers,while larger particles accumulated around the *** agglomeration efficiency exhibited an M-shaped profile spanwise(y-direction).With increasing Reynolds number,the agglomeration efficiency and turbulence intensity *** particle agglomeration efficiency peaks at a certain Reynolds ***,at higher Reynolds numbers,reducing the residence time of particles in the flow field decreases the agglomeration efficiency.

关键词： microparticle particle agglomeration discrete element method large eddy simulation

Optimization of transverse unidirectional scattering by morphology modification of irregular V-shaped silicon nanoantennas

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Optoelectronics Letters 2025年第3期21卷 129-135页

作者： ZENG ming ZHAO Feng wang Xianghui School of Electrical and Information Engineering Tianjin University Institute of Modern Optics Tianjin Key Laboratory of Micro-scale Optical Information Science and TechnologyNankai University

A scheme based on irregular V-shaped silicon nanoantennas is proposed to optimize transverse unidirectional scattering under plane wave irradiation. Traditional methods of designing regular shapes offer fewer parameters and higher search efficiency. However, due to the limitations of regular shapes, it is challenging to meet high-precision design requirements. Irregular shape design allows for a broader range of adjustments, but the complexity of shape parameters leads to lower search efficiency and a higher likelihood of converging to local optima.

关键词： A

Structuring MoO3-polyoxometalate hybrid superstructures to boost electrocatalytic hydrogen evolution reaction

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Chinese Chemical Letters 2025年第2期36卷 239-243页

作者： Bowen Li Ting wang ming Xu Yuqi wang Zhaoxing Li Mei Liu Wenjing Zhang ming Feng Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University

Improving the surface atoms utilization efficiency of catalysts is extremely important for large-scale H2production by electrochemical water splitting,but it remains a great ***,we reported two kinds of Mo O3-polyoxometalate hybrid nanobelt superstructures (MoO3-POM HNSs,POM=PW12O40and Si W12O40) using a simple hydrothermal *** superstructure with highly uniform nanoparticles as building blocks can expose more surface atoms and emanate increased specific surface *** incorporated POMs generated abundant oxygen vacancies,improved the electronic mobility,and modulated the surface electronic structure of MoO3,allowing to optimize the H*adsorption/desorption and dehydrogenation kinetics of ***,the as-prepared MoO3-PW12O40HNSs electrodes not only displayed the low overpotentials of 108 mV at 10 mA/cm2current density in 0.5 mol/L H2SO4electrolyte but also displayed excellent long-term *** hydrogen evolution reaction （HER） performance of MoO3-POM superstructures is significantly better than that of corresponding bulk materials MoO3@PW12O40and Mo O3@Si W12O40,and the overpotentials are about 8.3 and 4.9 times lower than that of single Mo *** work opens an avenue for designing highly surface-exposed catalysts for electrocatalytic H2production and other electrochemical applications.

关键词： Electrocatalysis Hydrogen production Metal oxide Polyoxometalate Superstructure

Tunable Thermo-Responsive Shape Memory Materials Enabled by Poly(ε-caprolactone)-Poly(2-vinyl)ethylene Glycol Copolymers via Facile Thiol-Ene Photo-Crosslink

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Chinese Journal of Polymer Science 2025年第2期43卷 278-288页

作者： ming-Hang wang Fan Yang Yong-Jian Zhang Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Moleculesand School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai200240China Sichuan Research Institute Shanghai Jiao Tong UniversityChengdu610042China

Control crosslink network and chain connectivity are essential to develop shape memory polymers(SMPs)with high shape memory capabilities,adjustable response temperature,and satisfying mechanistical *** this study,novel poly(ε-caprolactone)(PCL)-poly(2-vinyl)ethylene glycol(PVEG)copolymers bearing multi-pendant vinyl groups is synthesized by branched-selective allylic etherification polymerization of vinylethylene carbonate(VEC)with linear and tetra-arm PCLs under a synergistic catalysis of palladium complex and boron *** thiol-ene photo-click reaction of PCL-PVEG copolymers with multifunctional thiols can rapidly access a serious crosslinked SMPs with high shape memory *** thermal properties,mechanical properties and response temperature of the obtained SMPs are tunable by the variation of PCL prepolymers,vinyl contents and functionality of ***,high elastic modulus in the rubbery plateau region can be maintained effectively owing to high-density topological networks of the PCL *** addition,the utility of the present SMPs is further demonstrated by the post-functionalization via thiol-ene photo-click chemistry.

关键词： Shape memory polymers Polycaprolactone Thiol-ene photo-crosslink Controlled crosslinking density Tunable response temperature

Radical dehydroxymethylative fluorination of aliphatic primary alcohols and diverse functionalization ofα-fluoroimides via BF_(3)·OEt_(2)-catalyzed C-F bond activation

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Chinese Chemical Letters 2025年第1期36卷 239-243页

作者： Peng wang Jianjun wang Ni Song Xin Zhou ming Li Molecular Synthesis Center Key Laboratory of Marine MedicineChinese Ministry of EducationSchool of Medicine and PharmacyOcean University of ChinaQingdao 266003China Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and TechnologyQingdao 266237China

Ag_(2)CO_(3)-promoted dehydroxymethylative fluorination of aliphatic alcohols has been achieved with Selectfluor as both oxidant and fluorine *** reaction involvesβ-fragmentation of primary alkoxy radicals,followed by the fluorination of the resulting C-centered radical *** transformation proceeds under mild reaction conditions and exhibits a broad substrate scope,thus opening up a new entrance to the synthesis of fluorinated constructs includingα-fluoroimides and 1-fluoroalkyl benzoates as well as secondary and tertiary alkyl fluorides like versatile 2-fluoro-2-alkyl 1,3-propandiol *** divergent functionalization of the obtainedα-fluoroimides enables an efficient access to amine derivatives through C-F bond activation under the action of BF_(3)·OEt_(2).

关键词： Dehydroxymethylative fluorination Alkoxy radicals β-Fragmentation Silver catalysis C-F Bond activation

Optimizing cooling approach of spiral coil for an electromagnetic steel teeming system of ladle in continuous casting production

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Journal of Iron and Steel Research International 2025年第1期32卷 85-94页

作者： ming He Qing-wei wang Li-jia Zhao wang-zhong Mu Xing-an Liu Qiang wang College of Horticulture Shenyang Agricultural UniversityShenyang110866LiaoningChina Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education) Northeastern UniversityShenyang110819LiaoningChina Key Laboratory of Protected Horticulture(Ministry of Education) Shenyang Agricultural UniversityShenyang110866LiaoningChina Department of Materials Science and Engineering KTH Royal Institute of TechnologyStockholm10044Sweden

To address the current issues with the conventional slide gate system utilized in the steel teeming process,a unique electromagnetic induction controlled automated steel teeming(EICAST)technology has been *** means of spiral coil in this technology is directly related to its service ***,heat transfer processes of air cooling and spray cooling were compared and ***,the impacts of water temperature,water flow rate and air flow rate were examined in order to maximize the spray cooling *** maintain coil temperature at a low value consistently throughout the entire thermal cycle process of the ladle,a combined cooling mode was finally *** simulation was applied to examine the coil temperature variation with different cooling systems and *** coil operation,spray cooling is said to be more *** controlling the water flow rate and air flow rate,the spray cooling effect is ***,water temperature has little or no impact when using spray *** cooling during the secondary refining process and spray cooling prior to coil operation are combined to further lower coil *** the direction of the spray cooling is from bottom to top,the coil temperature is lowered below 165℃.A practical induction coil cooling plan was provided for the EICAST technology’s production process.

关键词： Electromagnetic induction controlled automated steel teeming technology Spiral coil Spray cooling Heat transfer Continuous casting

Effects of Iron and Phosphorus on Microcystis Physiological Reactions

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Biomedical and Environmental Sciences 2006年第5期19卷 399-404页

作者： ming-ming OU YAN wang BAO-XUE ZHOU WEI-MIN CAI Department of Environmental Science and Engineering Shanghai Jiaotong University Shanghai 200240 China

Objective To observe the effects of iron and phosphorus on Microcystis physiological reactions. Methods The experimental conditions were chosen as the light dark cycles of 16 h 8 h, 12 h 12 h, and 8 h 16 h. The cell change of morphology and life history, cell number, cell color, and cell area of Microcystis were analyzed quantitatively. According to the resource competition and Monod equation, Microcystis kinetics of phosphorus and iron were also examined. Results The longer light time caused more special cell division, slower growth rate, and easier change of bigger cell area. The color of alga was changed from green to brown. Ks and μmax of phosphorus absorption were 0.0352 μmol·L^-1and 0.493 d^-1, respectively. Those of iron absorption were 0.00323 μmol.L^-1and 0.483 d^-1. Conclusion Microcystis bloom is more dominant than other algae.

关键词： Microcystis Morphology Light Dark Dynamics Iron Phosphorus

Side population cells isolated from KATO Ⅲ human gastric cancer cell line have cancer stem cell-like characteristics

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World Journal of Gastroenterology 2012年第33期18卷 4610-4617页

作者： Jun-Jun She Peng-Ge Zhang Xuan wang Xiang-ming Che Zi-ming wang Department of General Surgery First Affiliated Hospital of Medical College Xi'an Jiaotong University Xi'an 710061 Shaanxi Province China

AIM: To investigate whether the side population (SP) cells possess cancer stem cell-like characteristics in vitro and the role of SP cells in tumorigenic process in gastric cancer. METHODS: We analyzed the presence of SP cells indifferent human gastric carcinoma cell lines, and then isolated and identified the SP cells from the KATO Ⅲ human gastric cancer cell line by flow cytometry. The clonogenic ability and self-renewal were evaluated by clone and sphere formation assays. The related genes were determined by reverse transcription polymerase chain reaction. To compare tumorigenic ability, SP and non-side population (NSP) cells from the KATO Ⅲ human gastric cancer cell line were subcutaneously injected into nude mice. RESULTS: SP cells from the total population accounted for 0.57% in KATO Ⅲ, 1.04% in Hs-746T, and 0.02% in AGS (CRL-1739). SP cells could grow clonally and have self-renewal capability in conditioned media. The expression of ABCG2, MDRI, Bmi-1 and Oct-4 was different between SP and NSP cells. However, there was no apparent difference between SP and NSP cells when they were injected into nude mice. CONCLUSION: SP cells have some cancer stem celllike characteristics in vitro and can be used for studying the tumorigenic process in gastric cancer.

关键词： Side population Cancer stem cells Selfrenewal Gastric cancer KATO Ⅲ