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Synthesis ofδ-MnO_(2)via ozonation routine for low temperature formaldehyde removal

Journal of Environmental Sciences 2025年第1期147卷 642-651页

作者： Guijun Fan Yacong Guo Shaohua Chai Le Zhang Jian Guan Guojun Ma Ning han Yunfa Chen State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China College of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Science and Technology on Particle Materials Institute of Process EngineeringChinese Academy of SciencesBeijing 361021China Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Petrochemical Engineering&Environment Zhejiang Ocean UniversityZhoushan 316022China

Nowadays,it is still a challenge to prepared high efficiency and low cost formaldehyde(HCHO)removal catalysts in order to tackle the long-living indoor air ***,δ-MnO_(2)is successfully synthesized by a facile ozonation strategy,where Mn^(2+)is oxidized by ozone(O_(3))bubble in an alkaline *** presents one of the best catalytic properties with a low 100%conversion temperature of 85℃for 50 ppm of HCHO under a GHSV of 48,000 mL/(g·hr).As a comparison,more than 6 times far longer oxidation time is needed if O3 is replaced by O_(2).Characterizations show that ozonation process generates a different intermediate of tetragonalβ-HMnO_(2),which would favor the quick transformation into the final productδ-MnO_(2),as compared with the relatively more thermodynamically stable monoclinicγ-HMnO_(2)in the O_(2)***,HCHO is found to be decomposed into CO_(2)via formate,dioxymethylene and carbonate species as identified by room temperature insitu diffuse reflectance infrared fourier transform *** these results show great potency of this facile ozonation routine for the highly activeδ-MnO_(2)synthesis in order to remove the HCHO contamination.

关键词： δ-MnO_(2) Ozone oxidation HCHO oxidation In-situ DRIFTS

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非均质孔隙介质中循环驱替对两相渗流及毛细捕获的影响

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岩土力学 2025年第2期46卷 505-514页

作者：邓汉鑫武东生王晓光王东坡成都理工大学地质灾害防治与地质环境保护国家实验室四川成都610059 天府永兴实验室四川成都610213 成都理工大学能源学院四川成都610059

孔隙介质中的两相渗流和毛细捕获是深部咸水层中二氧化碳(CO_(2))封存的重要过程和关键机制。尽管已有研究对两相流驱替模式及其判据进行了深入探讨,但循环驱替过程中两相渗流特性和毛细捕获机制的研究仍相对不足。通过孔隙尺度的水-油... 详细信息

孔隙介质中的两相渗流和毛细捕获是深部咸水层中二氧化碳(CO_(2))封存的重要过程和关键机制。尽管已有研究对两相流驱替模式及其判据进行了深入探讨,但循环驱替过程中两相渗流特性和毛细捕获机制的研究仍相对不足。通过孔隙尺度的水-油两相循环驱替可视化试验研究,分析了孔隙非均质性和循环驱替次数对两相渗流特性及毛细捕获效率的影响。试验结果显示,循环驱替破坏了非润湿相的连续性,使其分解为难以重新活化的孤立“液滴”,经过4次循环驱替后,毛细捕获效率最高可达40%。随着孔隙介质非均质性的增加,通过绕流机制大量捕获非润湿相,非均质孔隙结构中毛细捕获效率相比均质介质提高了32.5%。试验结果还揭示了循环驱替过程中4种典型的毛细捕获液滴类型:附着型、桥接型、团状型和簇状型液滴,其中,附着型液滴的数量占比最高,但其捕获体积较小,而簇状型液滴对毛细捕获效率贡献最大。该研究结果加深了对循环注入过程中毛细捕获机制的理解,并为提高深部咸水层CO_(2)地质封存的效率提供了理论支持和实践依据。

关键词：非均质孔隙介质两相渗流循环驱替毛细捕获微流控试验

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Organic pollutant sensing for human health based on carbon dots

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Chinese Chemical Letters 2025年第1期36卷 147-157页

作者： Quan Zhang Shunjie Xing Jingqian han Li Feng Jianchun Li Zhaosheng Qian Jin Zhou Affiliated Hospital of Shandong Second Medical University(261031 School of Clinical Medicine)School of PharmacyShandong Second Medical UniversityWeifang 261053China Shandong Botai Measurement and Testing Co.Ltd. Weifang 261000China College of Chemistry and Materials Science Zhejiang Normal UniversityJinhua 321004China

Organic pollutants are harmful and toxic chemical substances that adversely threaten human health and the living environment all over the *** and more studies have been investigating the relationship between low level of human exposure of organic compounds and various internal *** the sake of assessing disease risk due to organic compounds contact in a particular location,it is imperative for relevant government departments to make a human health risk assessment in view of the organic pollutants'bioavailability and their dosage-response *** is inevitable to make use of an efficient method to detect organic pollutants,which is significant for public health and *** assays based on carbon dots thus would provide a very plausible candidate *** consulting a large number of literatures,we offer a comprehensive review of the sensing applications of carbon dots for organic pollutants.

关键词： Fluorescent probe Human health Organic pollutants Carbon dots Detection and sensing

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FK506 contributes to peripheral nerve regeneration by inhibiting neuroinflammatory responses and promoting neuron survival

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Neural Regeneration Research 2025年第7期20卷 2108-2115页

作者： Yuhui Kou Zongxue Jin Yusong Yuan Bo Ma Wenyong Xie Na han Department of Trauma and Orthopedics Peking University People’s HospitalBeijingChina National Center for Trauma Medicine Peking University People’s HospitalBeijingChina Key Laboratory of Trauma and Neural Regeneration(Peking University) Ministry of EducationBeijingChina Trauma Medicine Center Peking University People’s HospitalBeijingChina Department of Orthopedics China-Japan Friendship HospitalBeijingChina

FK506(Tacrolimus)is a systemic immunosuppressant approved by the *** and Drug ***506 has been shown to promote peripheral nerve regeneration,however,its precise mechanism of action and its pathways remain *** this study,we established a rat model of sciatic nerve injury and found that FK506 improved the morphology of the injured sciatic nerve,increased the numbers of motor and sensory neurons,reduced inflammatory responses,markedly improved the conduction function of the injured nerve,and promoted motor function *** findings suggest that FK506 promotes peripheral nerve structure recovery and functional regeneration by reducing the intensity of inflammation after neuronal injury and increasing the number of surviving neurons.

关键词： FK506 inflammation motor neurons nerve regeneration neuron peripheral nerve injury sensory neurons

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Organic fertilizer enhances soil aggregate stability by altering greenhouse soil content of iron oxide and organic carbon

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Journal of Integrative Agriculture 2025年第1期24卷 306-321页

作者： Lijun Ren han Yang Jin Li Nan Zhang Yanyu han Hongtao Zou Yulong Zhang College of Land and Environment Shenyang Agricultural University/National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources/Key Laboratory of Arable Land Conservation in Northeast ChinaMinistry of Agriculture and Rural AffairsShenyang 110866China

Both soil organic carbon (SOC) and iron (Fe) oxide content, among other factors, drive the formation and stability of soil ***, the mechanism of these drivers in greenhouse soil fertilized with organic fertilizer is not well *** a 3-year field experiment, we aimed to investigate the factors which drive the stability of soil aggregates in greenhouse *** explore the impact of organic fertilizer on soil aggregates, we established four treatments:no fertilization (CK);inorganic fertilizer (CF);organic fertilizer (OF);and combined application of inorganic and organic fertilizers(COF).The application of organic fertilizer significantly enhanced the stability of aggregates, that is it enhanced the mean weight diameter, geometric mean diameter and aggregate content (%) of>0.25 mm aggregate *** and COF treatments increased the concentration of SOC, especially the aliphatic-C, aromatic-C and polysaccharide-C components of SOC, particularly in>0.25 mm *** fertilizer application significantly increased the content of free Fe(Fed), reactive Fe (Feo), and non-crystalline Fe in both bulk soil and ***, non-crystalline Fe showed a positive correlation with SOC content in both bulk soil and *** non-crystalline Fe and SOC were significantly positively correlated with>2 mm mean weight ***, we believe that the increase of SOC, aromatic-C, and non-crystal ine Fe concentrations in soil after the application of organic fertilizer is the reason for improving soil aggregate stability.

关键词： organic fertilizer soil aggregates soil organic carbon iron oxides greenhouse soil

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Complexation Induced by Weak Interaction between DNA and PEO-b-P4VP below the CMC of the Polymer

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Chinese Journal of Polymer Science 2017年第1期35卷 46-53页

作者： han miao ya-fen wang hai-yan dong 陈道勇 The State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200433 China

The complexation between circular DNA and individual chains of PEO-b-P4VP with a relatively long PEO block and a short P4VP block is highly controllable when the interaction between DNA and the polymer is weak enough. When one circular DNA chain is taken into consideration, and the polymer concentration is far below its critical micelle concentration （CMC）, polymer chains are absorbed by DNA chain due to the interaction between the negatively charged DNA chain and the slightly positively charged P4VP block chains. After the adsorption/complexation, the DNA chain is converted into a nanoring （type 1）. In the nanoring, the DNA chain is sufficiently wrapped by the polymer and adopts a fully stretched conformation, so that the DNA compact ratio in the nanorings is close to 1. When the polymer concentration is close to but lower than the CMC, the free polymer chains in the solution are adsorbed not only by the DNA chain but also by the polymer chains that have already been adsorbed on the DNA chain. As a result, the circular DNA chain adsorbs more polymer chains, and thus the resultant nanoring （type 2） has a larger width. In the type 2 nanoring, the DNA chain is slightly compressed; the DNA compact ratio is only about 2-3. Therefore, complexation induced by the weak interaction between DNA and PEO-b-P4VP below the CMC can produce narrow-disperse and large nanorings with a perimeter of micrometers, which are difficult to prepare by existing methods.

关键词： Weak interaction DNA Individual polymer chains Block copolymer Critical micelle concentration

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ARF4 acting upstream of LBD16 promotes adventitious root formation in peach

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Horticultural Plant Journal 2025年第1期11卷 145-161页

作者： Jingjing Liu Lingling Gao Ruoxi Zhang Anqi Gao Zamith Kerubo Oginga Beibei Zheng Yuepeng han CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenThe Innovative Academy of Seed Design of Chinese Academy of SciencesWuhanHubei 430074China Hubei Hongshan Laboratory WuhanHubei 430070China University of Chinese Academy of Sciences Beijing 100049China

Although class A auxin response factors(ARFs)are known to regulate adventitious root(AR)development through the canonical SCFTIR1-Aux/IAA-ARF signaling pathway,the regulatory role of class B ARFs in AR development remains largely ***,this research focused on the role of class B ARF transcription factors in peach(Prunus persica‘Shengli')adventitious root ***,we report the role of a class B ARF gene Pp ARF4 in adventitious root formation in *** transcriptome and q RT-PCR analyses showed that the transcription of Pp ARF4 was significantly up-regulated in auxin-treated stem explants.Y2H assay showed that Pp ARF4 had no interaction with Pp IAAs(AUXIN/INDOLE ACETIC ACIDs).Pp ARF4 could bind the promoters of lateral root development gene Pp LBD16 and auxin transport gene Pp PIN1 to activate their *** overexpression of Pp ARF4 and Pp LBD16 in Arabidopsis promoted AR ***,Pp ARF4 could act as a negative regulator of flavone synthesis and thus prevent the explants from *** results not only provide novel insights into the functions of ARFs in regulating plant growth and development,but will also be useful for fulfilling asexual propagation by stem cuttings in peach.

关键词： Prunus persica Adventitious root Auxin Pp ARF4 Pp LBD16

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An electrically activable nanochip to intensify gas-ionic-immunotherapy

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Science Bulletin 2025年第3期70卷 390-406页

作者： Gang Wang Jingrui Li Shumin Sun Yuqi Yang Zhihui han Zifan Pei Liang Cheng Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China

Excess intracellular H_(2)S induces destructive mitochondrial toxicity,while overload of Zn^(2+)results in cell pyroptosis and potentiates the tumor immunogenicity for ***,the precise delivery of both therapeutics remains a great ***,an electrically activable ZnS nanochip for the controlled release of H_(2)S and Zn^(2+)was developed for enhanced gas-ionic-immunotherapy(GIIT).Under an electric field,a locality with particularly high concentrations of H_(2)S and Zn^(2+)was established by the voltage-controlled degradation of the ZnS nanoparticles(NPs).Consequently,the ZnS nanochip-mediated gas-ionic therapy(GIT)resulted in mitochondrial membrane potential depolarization,energy generation inhibition,and oxidative stress imbalance in tumor ***,the cyclic guanosine monophosphate-adenosine monophosphate synthase-stimulator of interferon genes(cGAS-STING)signaling pathway was activated due to the mitochondrial ***,the released Zn^(2+)resulted in the increase of the intracellular Zn levels and cell pyroptosis,which enhanced the immunogenicity via the release of damage-associated molecular patterns(DAMPs).In vitro and in vivo studies revealed that the ZnS nanochip-based GIT effectively eliminated the tumors under an electric field and mobilized the cytotoxic T lymphocytes for *** combination withαCTLA-4 further promoted the adaptive immune response and inhibited tumor metastasis and long-term tumor *** work presented an electrically activable ZnS nanochip for combined immunotherapy,which might inspire the development of electric stimulation therapy.

关键词： H_(2)S gas therapy lonic interference therapy Electrically controll eddelivery Cell pyroptosis CGAS-STING pathway

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Long non-coding RNAs as promising targets for controlling disease vector mosquitoes

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Insect Science 2025年第1期32卷 24-41页

作者： Yujiao han Qian Pu Ting Fan Tianqi Wei Yankun Xu Lu Zhao Shiping Liu State Key Laboratory of Resource Insects Southwest UniversityChongqing400716 China

Hematophagous female mosquitoes are important vectors of numerous devastating human diseases,posing a major public health *** prevention and control of mosquito-borne diseases rely considerably on progress in understanding the molecular mechanisms of various life activities,and accordingly,the molecules that regulate the various life activities of mosquitoes are potential targets for implementing future vector control *** long non-coding RNAs(lncRNAs)have been identified in mosquitoes and significant progress has been made in determining their ***,we present a comprehensive overview of the research advances on mosquito lncRNAs,including their molecular identification,function,and interaction with other non-coding RNAs,as well as their synergistic regulatory roles in mosquito life *** also highlight the potential roles of competitive endogenous RNAs in mosquito growth and development,as well as in insecticide resistance and virus–host *** into the biological functions and mechanisms of lncRNAs in mosquito life activities,viral replication,pathogenesis,and transmission will contribute to the development of novel drugs and safe vaccines.

关键词： competitive endogenous RNAs(ceRNAs) insecticide resistance long noncoding RNA(lncRNA) mosquito mosquito-borne diseases pathogen-host interaction

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Multi-Stage Voltage Control Optimization Strategy for Distribution Networks Considering Active-Reactive Co-Regulation of Electric Vehicles

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Energy Engineering 2025年第1期122卷 221-242页

作者： Shukang Lyu Fei Zeng Huachun han Huiyu Miao Yi Pan Xiaodong Yuan Electric Power Research Institute State Grid Jiangsu Electric Power Co.Ltd.Nanjing211103China

The high proportion of uncertain distributed power sources and the access to large-scale random electric vehicle(EV)charging resources further aggravate the voltage fluctuation of the distribution network,and the existing research has not deeply explored the EV active-reactive synergistic regulating characteristics,and failed to realize themulti-timescale synergistic control with other regulatingmeans,For this reason,this paper proposes amultilevel linkage coordinated optimization strategy to reduce the voltage deviation of the distribution ***,a capacitor bank reactive power compensation voltage control model and a distributed photovoltaic(PV)activereactive power regulationmodel are ***,an external characteristicmodel of EVactive-reactive power regulation is developed considering the four-quadrant operational characteristics of the *** optimization model of the distribution network is then constructed considering the time-series coupling constraints of multiple types of voltage regulators.A multi-timescale control strategy is proposed by considering the impact of voltage regulators on active-reactive EV energy consumption and PV energy ***,a four-stage voltage control optimization strategy is proposed for various types of voltage regulators with multiple time ***-objective optimization is solved with the improvedDrosophila algorithmto realize the power fluctuation control of the distribution network and themulti-stage voltage control *** results validate that the proposed voltage control optimization strategy achieves the coordinated control of decentralized voltage control resources in the distribution *** effectively reduces the voltage deviation of the distribution network while ensuring the energy demand of EV users and enhancing the stability and economic efficiency of the distribution network.

关键词： Electric vehicle(EV) distribution network multi-stage optimization active-reactive power regulation voltage control

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