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Comparative analysis of DNA-SIP and magnetic-nanoparticle mediated isolation (MMI) on unraveling dimethoate degraders

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Frontiers of Environmental science & Engineering 2024年第1期18卷 59-69页

作者： Luning Lian Yi Xing Dayi Zhang Longfei Jiang Mengke Song Bo Jiang School of Energy and Environmental Engineering University of Science&Technology BeijingBeijing 100083China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science&Technology BeijingBeijing 100083China National Environmental and Energy Science and Technology International Cooperation Base University of Science&Technology BeijingBeijing 100083China College of New Energy and Environment Jilin UniversityChangchun 130021China Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China College of Natural Resources and Environment South China Agricultural UniversityGuangzhou 510642China National Engineering Laboratory for Site Remediation Technologies Beijing 100015China

Microorganisms are crucial in the bioremediation of organophosphorus pesticides. However, most functional microorganisms (> 99%) are yet to be cultivated. This study applied two cultivation-independent approaches, DNA-SIP and magnetic-nanoparticle mediated isolation (MMI), to identify the functional microorganisms in degrading dimethoate in agricultural soils. MMI identified five dimethoate degraders: Pseudomonas, Bacillus, Ramlibacter, Arthrobacter, and Rhodococcus, whereas DNA-SIP identified three dimethoate degraders: Ramlibacter, Arthrobacter, and Rhodococcus. Also, MMI showed higher resolution than DNA-SIP in identifying functional microorganisms. Two organic phosphohydrolase (OPH) genes: ophC2 and ophB, were involved in dimethoate metabolism, as revealed by DNA-SIP and MMI. The degradation products of dimethoate include omethoate, O,O,S-trimethyl thiophosphorothioate, N-methyl-2-sulfanylacetamide, O,O-diethyl S-hydrogen phosphorodithioate, O,O,O-trimethyl thiophosphate, O,O,S-trimethyl thiophosphorodithioate, and O,O,O-trimethyl phosphoric. This study emphasizes the feasibility of using SIP and MMI to explore the functional dimethoate degraders, expanding our knowledge of microbial resources with cultivation-independent approaches.

关键词： Stable isotope probing(SIP) Magnetic-nanoparticle mediated isolation(MMI) Dimethoate Biodegradation Cultivation-independent approach

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Composition design of fullerene-based hybrid electron transport layer for efficient and stable wide-bandgap perovskite solar cells

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Journal of Energy Chemistry 2025年第3期102卷 172-178页

作者： Shuai Zeng Hui Wang Xiangyang Li Hailin Guo Linfeng Dong Chuanhang Guo Zhenghong Chen Jinpeng Zhou Yuandong Sun Wei Sun Liyan Yang Wei Li Dan Liu Tao Wang School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070HubeiChina School of Materials and Microelectronics Wuhan University of TechnologyWuhan 430070HubeiChina Key Laboratory of Textile Fiber and Products(Wuhan Textile University) Ministry of EducationWuhan 430200HubeiChina

Fullerene derivatives[6,6]-phenyl-C61-butyric acid methyl ester(PC_(61)BM)has been routinely used as the electron transport layer(ETL)in perovskite solar cells due to its suitable energy levels and good solution ***,its electron mobility and conductivity still need to be further enhanced for constructing high performance perovskite solar cells(PSCs).Herein,by doping the PC_(61)BM with a p-type polymer PM6 and n-type molecule ITIC,efficient wide-bandgap perovskite solar cells with improved efficiency and operational/storage stability are *** spectroscopy and electric measurements indicate PM6 and ITIC can both passivate defects at the perovskite/ETL interface,meanwhile ITIC can elevate the Fermi level of PC_(61)BM to enhance conductivity and PM6 can improve the photo-induced electron mobility of the ETL,facilitating charge extraction and reducing charge *** the results,Cs_(0.17)FA_(0.83)Pb(I_(0.83)Br_(0.17))_(3)wide-bandgap PSCs with PM6:PC_(61)BM:ITIC as the ETL demonstrates a superior efficiency of 22.95%,compared to 20.89%of the PC_(61)BM assisted device.

关键词： Perovskite solar cells Fullerene Electron transport layer Composition

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Sustainable Seawater Desalination and Energy Management:Mechanisms,Strategies,and the Way Forward

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Research 2024年第3期2023卷 595-611页

作者： Meng Wang Yen Wei Ruoxin Li Xin Wang Chengyu Wang Nanqi Ren Shih-Hsin Ho State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150001China Department of Chemistry Tsinghua UniversityBeijing 100084China Key Laboratory of Bio-based Material Science&Technology(Northeast Forestry University) Ministry of EducationHarbin 150040China.

Solar-driven desalination systems have been recognized as an effective technology to address the water ***,evaporators prepared based on advanced manufacturing technologies have emerged as a promising tool in enhancing ocean energy *** this review,we discussed the thermal conversion,energy flow,salt deposition mechanisms,and design strategies for solar-driven desalination systems,and explored how to improve the desalination performance and energy use efficiency of the systems through advanced manufacturing *** future perspectives,we determined the feasibility of coupling solar-driven solar desalination systems with multi-stage energy utilization systems and emerging artificial intelligence technologies,for which conclusions are given and new directions for future desalination system development are ***,exciting opportunities and challenges in the face of basic research and practical implementation are discussed,providing promising solutions and blueprints for green and novel desalination technologies while achieving sustainable development.

关键词： Sustainable Solar directions

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Refined Spatialization of 10-Day Precipitation in China Based on GPM IMERG Data and Terrain Decomposition Using the BEMD Algorithm

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Journal of Meteorological Research 2023年第5期37卷 690-709页

作者： Xiaochen ZHU Qiangyu LI Yan ZENG Guanjie JIAO Wenya GU Xinfa QIU Ailifeire WUMAER School of Applied Meteorology Nanjing University of Information Science&TechnologyNanjing 210044 Key Laboratory of Transportation Meteorology China Meteorological AdministrationNanjing 210041 Jiangsu Institute of Meteorological Sciences Nanjing 210041 Nanjing Joint Institute for Atmospheric Sciences Nanjing 210041 School of Environmental Science and Engineering Nanjing University of Information Science&TechnologyNanjing 210044 School of Mathematics and Statistics Nanjing University of Information Science&TechnologyNanjing 210044 School of Geographical Sciences Nanjing University of Information Science&TechnologyNanjing 210044

Continuous high spatial-resolution 10-day precipitation data are essential for crop growth services and phenological *** this study,we first use the bidimensional empirical mode decomposition(BEMD)algorithm to decompose the digital elevation model(DEM)data and obtain high-frequency(OR3),intermediate-frequency(OR5),and low-frequency(OR8)margin ***,we propose a refined precipitation spatialization model,which uses ground-based meteorological observation data,integrated multi-satellite retrievals for global precipitation measurement(GPM IMERG)satellite precipitation products,DEM data,terrain decomposition data,prevailing precipitation direction(PPD)data,and other multisource data,to construct China's high-resolution 10-day precipitation data from2001 to *** decomposition results show mountainous terrain from fine to coarse scales;and the influences of altitude,slope,and aspect on precipitation are better represented in the model after topography is ***,terrain decomposition data can be added to the model simulation to improve the quality of the simulation product;the simulation quality of the model in summer is better than that in spring and autumn,and is relatively poor in winter;and OR5 and OR8 can be improved in the simulation,with better OR5 and OR8 dynamically *** addition,preprocessing the data before precipitation spatialization is particularly *** example,adding 0.01to the 0 value of precipitation,multiplying the small value of precipitation less than 1 by 10,and performing the normal distributions transform(e.g.,Yeo–Johnson)on the data can improve the simulation quality.

关键词： bidimensional empirical mode decomposition(BEMD)algorithm 10-day precipitation terrain decomposition digital elevation model(DEM) integrated multi-satellite retrievals for global precipitation measurement(GPM IMERG)

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Robust,flame-retardant and colorful superamphiphobic aramid fabrics for extreme conditions

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science China(Technological sciences) 2021年第8期64卷 1765-1774页

作者： LIU Xiang CHEN JunLi SHAO QingQing CAO JiQiang DU ZhaoQun LIU HongLing YU WeiDong Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai201620China

High-performance superamphiphobic fabrics are very useful in special fields,such as firefighting,rescue,and polar *** complicated preparation process,easily damaged surface structure,and high cost drastically limit their commercial *** this work,we utilized a simple,low-cost superamphiphobic coating to prepare a superamphiphobic aramid fabric(SAF).The excellent repellency to acid/alkali solutions and low boiling point organic solvents has been demonstrated with the contact angle of>150°and>130°,***,the original color of the fabric can also be maintained,accompanied by superior flame retardancy,strength and comfort with thermal degradation of 361℃.More importantly,SAF displayed excellent durability via 50 standard machine washes,100-min of ultrasonic washing,10-min of UV irradiation,120-min of high-temperature heating,5000 cycles of abrasion,and destructive abrasion by sharp *** the results showed the superior performance of our SAF in protective fabrics under extreme environmental conditions.

关键词： superamphiphobic chemical protective aramid robust flame

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Breaking the concentration quenching limit of lanthanide emitter through multi-coupling of confined quasi-0D & 2D energy migration

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science China Chemistry 2025年第4期68卷 1372-1382页

作者： Yuanchao Lei Shanshan Zhou Jianxi Ke Licheng Yu Youchao Wei Yongsheng Liu Maochun Hong State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China School of Physical Science and Technology.Shanghai Tech University Shanghai 201210China

The widespread applications of lanthanide-doped materials have fuelled a growing demand for precise control over the luminescence characteristics of these ***,the limitation imposed by concentration quenching remains a major obstacle in achieving efficient luminescence from lanthanide-doped ***,a novel strategy utilizing Sc_(2)O_(3):Ln^(3+) microflowers to enable confined energy migration in both microscopic quasi-zero-dimensional(0D)and mesoscopic twodimensional(2D)multi-coupling systems is proposed to overcome the concentration quenching limit of lanthanide emitters and achieve a remarkable doping amount of 48.14%on a single particle without resorting to complex core/multishell *** studies reveal that the multi-confinement structure effectively restricts the range of energy migration and significantly reduces excitation energy migration to *** on these highly doped Sc_(2)O_(3) microflowers,full spectrum and power-dependent tunable multi-color lanthanide emission in a single particle is successfully ***,the 2D-encoded patterns derived from these microflowers hold great promise for anti-counterfeiting *** findings emphasize the multi-coupling of confined quasi-0D&2D energy migration within a well-designed structure,providing valuable insights into concentration quenching *** also opens up new opportunities for multi-level anti-counterfeiting systems and information security.

关键词： lanthanides concentration quenching multiple confinement Sc_(2)O_(3) color-tunable

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Analysis of Ethylene Glycol Degumming Process and Characterization of Hemp Fibers

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Journal of Donghua University(English Edition) 2023年第3期40卷 255-260页

作者：池虹秦智慧赵树元刘柳张瑞云程隆棣 College of Textiles Donghua UniversityShanghai 201620China Key Laboratory of Textile Science&Technology Ministry of EducationDonghua UniversityShanghai 201620China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China

To overcome the shortcomings of traditional degumming process,an efficient and environmentally friendly ethylene glycol(EG) degumming process was adopted to degum hemp *** surface morphology,chemical composition,chemical structures,and mechanical properties of the fiber samples were analyzed to explore the mechanism of the degumming *** was found that the EG degumming process could be divided into the main degumming stage(heating) and the supplementary degumming stage(insulation).The removal rates of hemicellulose and lignin in the main degumming stage were 70.56% and 60.17%,*** the supplementary degumming stage,9.95% hemicellulose and 25.39% lignin were *** is confirmed that EG can separate hemp fibers effectively with less damage,which holds great potential for the biomass fiber separation technology.

关键词： hemp fiber degumming process ethylene glycol(EG) hemicellulose lignin

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Thickness-dependent magnetic property of FeNi thin film grown on flexible graphene substrate

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Chinese Physics B 2025年第2期34卷 448-452页

作者： Suixin Zhan Shaokang Yuan Yuming Bai Fu Liu Bohan Zhang Weijia Han Tao Wang Shengxiang Wang Cai Zhou State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China School of Mathematical and Physical Sciences Wuhan Textile UniversityWuhan 430200China School of Integrated Circuits Huazhong University of Science and TechnologyWuhan 430074China Key Laboratory for Magnetism and Magnetic Materials Ministry of EducationLanzhou UniversityLanzhou 730000China

Electronics over flexible substrates offer advantages of flexibility, portability and low cost, and promising applications in the areas of energy, information, defense science and medical service. In recent years, tremendous progress has been witnessed in the development of flexible wearable devices that can be potentially massively deployed. Of particular interest are intelligent wearable devices, such as sensors and storage cells, which can be integrated by flexible magnetoelectronic devices based on magnetic thin films. To examine this further, the magnetic properties of FeNi thin films with different thicknesses grown on flexible graphene substrate are investigated at room temperature. The coercivity increases with increasing thicknesses of FeNi thin film, which can be attributed to the increase of grain size and decrease of surface roughness. Moreover, the thickness modulated magnetic property shows a magnetic anisotropy shift increase with varying thicknesses of FeNi thin film by using measurements based on ferromagnetic resonance, which further enhances the resonance frequency. In addition, the resonance peak is quite stable after bending it for ten cycles. The result is promising for the future design of flexible magnetoelectronic devices.

关键词： resonance frequency FeNi thin film flexible graphene substrate magnetic property

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Spatial distribution of laser energy and its influence on the stability of extreme narrow keyholes during ultra-high power laser welding

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science China(Technological sciences) 2022年第9期65卷 2079-2088页

作者： WANG YiLin JIANG Ping GENG ShaoNing SHU LeShi SHAO XinYu The State Key Laboratory of Digital Manufacturing Equipment and Technology School of Mechanical Science and EngineeringHuazhong University of Science&TechnologyWuhan 430074China

The instability of extremely narrow keyholes is the main challenge in high-power laser *** this work,the spatial energy distribution and its influence on the stability of extremely narrow keyholes during ultra-high power laser welding are studied.A multiphase flow model that considers the vapor plume impact and the multiple scattering of laser radiation is built to simulate the topology and downstream wave flow on the keyhole *** keyhole fluctuation is due to excessive energy accumulation,which arises from the abnormal wrinkle structures that form on the front keyhole *** the periodic cutting phenomena on the keyhole opening and the hump accumulation effect on the solid-liquid interface help smooth the keyhole *** welding processes are obtained,producing fine,closed,and evenly distributed wrinkle structures,and the keyhole stability is correspondingly *** simulation results agree well with the experiment.

关键词： ultra-high power laser welding extreme narrow keyhole spatial energy distribution keyhole stability

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The centrosymmetric to non-centrosymmetric transformation induced by alkaline-earth cations producing infrared nonlinear optical AeMn_(6)Ga_(6)S_(16)(Ae=Ca,Sr)

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science China Chemistry 2024年第9期67卷 2941-2948页

作者： Yang-Ping Zhang Shao-Min Pei Wen-Fa Chen Bin-Wen Liu Xiao-Ming Jiang Guo-Cong Guo State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China School of Physical Science and Technology Shanghai Tech UniversityShanghai 201210China

Non-centrosymmetric(NCS)structure is an indispensable prerequisite for second-order nonlinear optical(NLO)***,the mainstream approach for designing new NCS structures still relies on chemical substitution,necessitating an urgent infusion of fresh *** this work,two isomorphic sulfides AeMn_(6)Ga_(6)S_(16)(Ae=Ca,1;Sr,2)are afforded by modifying the skeleton of centrosymmetric(CS)Mn_(2)Ga_(2)S_(5) via introducing strong electropositive alkaline-earth ***,the incorporation of Ca^(2+)/Sr^(2+)cations allows the elementary[MnGaS_(9)]_(∞)chains to reconfigure into bumpy[MnS_(6)]-[GaS_(4)]layers in a new engagement manner,thus enabling the conversion from CS to NCS *** modifications cause not only strong second-harmonic generation(SHG)responses(~1.5×benchmark AgGaS_(2)@1,700 nm),but also significantly feasible bandgaps(2.60-2.64 e V)compared to the sulfide Mn_(2)Ga_(2)S_(5)(1.36 e V),which ultimately facilitate ultrahigh laser-induced damage thresholds(4.4-6.6×AgGaS_(2)@1,064 nm for compounds 1 and 2).The present study offers an ingenious approach for the transformation of CS to NCS structure.

关键词： second-harmonic generation non-centrosymmetrical structure NLO functional motif solid-state method

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