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Nanoscale phase management of the 2D/3D heterostructure toward efficient perovskite solar cells

Science Bulletin 2024年第18期69卷 2853-2861页

作者： Hao Gu Annan Zhu Junmin Xia Wang Li Jiahao Zheng Tao Yang Shengwen Li Nan Zhang Shiliang Mei Yongqing Cai Shi Chen Chao Liang Guichuan Xing Joint key laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoMacao 999078China State key laboratory of Organic Electronics and Information Displays&Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts&Telecommunications(NUPT)Nanjing 210023China moe key laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsNational Innovation Platform(Center)for Industry-Education Integration of Energy Storage TechnologyXi’an Jiaotong UniversityXi’an 710049China Ministry of Industry and Information Technology key lab of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic SystemsHarbin Institute of TechnologyShenzhen 518055China Institute for Electric Light Sources School of Information Science and TechnologyFudan UniversityShanghai 200433China

The stabilization of the formamidinium lead iodide(FAPbI_(3))structure is pivotal for the development of efficient photovoltaic *** two-dimensional(2D)layers to passivate the threedimensional(3D)perovskite is essential for maintaining the a-phase of FAPbI_(3) and enhancing the power conversion efficiency(PCE)of perovskite solar cells(PSCs).However,the role of bulky ligands in the phase management of 2D perovskites,crucial for the stabilization of FAPbI_(3),has not yet been *** this study,we synthesized nanoscale 2D perovskite capping crusts with=1 and 2 Ruddlesden-Popper(RP)perovskite layers,respectively,which form a type-Ⅱ 2D/3D *** heterostructure stabilizes the a-phase of FAPbI_(3),and facilitates ultrafast carrier extraction from the 3D perovskite network to transport contact *** introduced tri-fluorinated ligands to mitigate defects caused by the halide vacancies and uncoordinated Pb^(2+)ions,thereby reducing nonradiative carrier recombination and extending carrier *** films produced were incorporated into PSCs that not only achieved a PCE of 25.39%but also maintained 95%of their initial efficiency after 2000 h of continuous light exposure without *** findings underscore the effectiveness of a phase-pure 2D/3D heterostructure-terminated film in inhibiting phase transitions passivating the iodide anion vacancy defects,facilitating the charge carrier extraction,and boosting the performance of optoelectronic devices.

关键词： Phase-pure 2D perovskite 2D/3D heterostructure Type-II energy alignment Carrier dynamic FAPbI_(3)

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Pindel-TD:A Tandem Duplication Detector Based on A Pattern Growth Approach

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Genomics, Proteomics & Bioinformatics 2024年第1期22卷 99-104页

作者： Xiaofei Yang Gaoyang Zheng Peng Jia Songbo Wang Kai Ye School of Computer Science and Technology Faculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China Center for Mathematical Medical the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061China Genome Institute the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061China moe key lab for Intelligent Networks&Networks Security Faculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China School of Automation Science and Engineering Faculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China School of Life Science and Technology Xi’an Jiaotong UniversityXi’an 710049China Faculty of Science Leiden UniversityLeiden 2311 EZNetherland

Tandem duplication(TD)is a major type of structural variations(SVs)that plays an important role in novel gene formation and human ***,TDs are often missed or incorrectly classified as insertions by most modern SV detection methods due to the lack of specialized operation on TD-related mutational ***,we developed a TD detection module for the Pindel tool,referred to as Pindel-TD,based on a TD-specific pattern growth ***-TD is capable of detecting TDs with a wide size range at single nucleotide *** simulated and real read data from HG002,we demonstrated that Pindel-TD outperforms other leading methods in terms of precision,recall,F1-score,and ***,by applying Pindel-TD to data generated from the K562 cancer cell line,we identified a TD located at the seventh exon of SAGE1,providing an explanation for its high ***-TD is available for non-commercial use at https://***/xjtu-omics/pindel.

关键词： Tandem duplication Pattern growth Short-read sequencing Structural variation SAGE1

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Anti-atherosclerotic effects and molecular targets of ginkgolide B from Ginkgo biloba

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Acta Pharmaceutica Sinica B 2024年第1期14卷 1-19页

作者： Weile Ye Jiaojiao Wang Peter JLittle Jiami Zou Zhihua Zheng Jing Lu Yanjun Yin Hao Liu Dongmei Zhang Peiqing Liu Suowen Xu Wencai Ye Zhiping Liu International Cooperative laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education(moe)of China Jinan UniversityGuangzhou 510632China Guangdong Province key laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research College of PharmacyJinan UniversityGuangzhou 510632China State key laboratory of Bioactive Molecules and Druggability Assessment Jinan UniversityGuangzhou 510632China Pharmacy Australia Centre of Excellence School of PharmacyUniversity of QueenslandWoolloongabba QLD 4102Australia Sunshine Coast Health Institute and School of Health and Behavioural Sciences University of the Sunshine CoastBirtinya QLD 4575Australia National-Local Joint Engineering lab of Druggability and New Drugs Evaluation Guangdong Provincial Key Laboratory of New Drug Design and EvaluationSun Yat-sen UniversityGuangzhou 510006China School of Pharmacy Bengbu Medical CollegeBengbu 233030China Institute of Endocrine and Metabolic Diseases the First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230026China

Bioactive compounds derived from herbal medicinal plants modulate various therapeutic targets and signaling pathways associated with cardiovascular diseases(CVDs),the world’s primary cause of *** biloba,a well-known traditional Chinese medicine with notable cardiovascular actions,has been used as a cardio-and cerebrovascular therapeutic drug and nutraceutical in Asian countries for *** studies have shown that ginkgolide B,a bioactive component in Ginkgo biloba,can ameliorate atherosclerosis in cultured vascular cells and disease *** clinical relevance,several clinical trials are ongoing or being completed to examine the efficacy and safety of ginkgolide B-related drug preparations in the prevention of cerebrovascular diseases,such as ischemia ***,we present a comprehensive review of the pharmacological activities,pharmacokinetic characteristics,and mechanisms of action of ginkgolide B in atherosclerosis prevention and *** highlight new molecular targets of ginkgolide B,including nicotinamide adenine dinucleotide phosphate oxidases(NADPH oxidase),lectin-like oxidized LDL receptor-1(LOX-1),sirtuin 1(SIRT1),platelet-activating factor(PAF),proprotein convertase subtilisin/kexin type 9(PCSK9)and ***,we provide an overview and discussion of the therapeutic potential of ginkgolide B and highlight the future perspective of developing ginkgolide B as an effective therapeutic agent for treating atherosclerosis.

关键词： Cardiovascular disease Atherosclerosis Ginkgo biloba Ginkgolide B Endothelial dysfunction LOX-1 PCSK9 PAF-R antagonist

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Reciprocal translation between SAR and optical remote sensing images with cascaded-residual adversarial networks

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Science China(Information Sciences) 2021年第2期64卷 154-168页

作者： Shilei FU Feng XU Ya-Qiu JIN key lab for Information Science of Electromagnetic Waves (moe) Fudan University

Despite the advantages of all-weather and all-day high-resolution imaging, synthetic aperture radar(SAR) images are much less viewed and used by general people because human vision is not adapted to microwave scattering phenomenon. However, expert interpreters can be trained by comparing side-byside SAR and optical images to learn the mapping rules from SAR to optical. This paper attempts to develop machine intelligence that is trainable with large-volume co-registered SAR and optical images to translate SAR images to optical version for assisted SAR image interpretation. Reciprocal SAR-optical image translation is a challenging task because it is a raw data translation between two physically very different sensing modalities. Inspired by recent progresses in image translation studies in computer vision,this paper tackles the problem of SAR-optical reciprocal translation with an adversarial network scheme where cascaded residual connections and hybrid L1-GAN loss are employed. It is trained and tested on both spaceborne Gaofen-3(GF-3) and airborne Uninhabited Airborne Vehicle Synthetic Aperture Radar(UAVSAR) images. Results are presented for datasets of different resolutions and polarizations and compared with other state-of-the-art methods. The Frechet inception distance(FID) is used to quantitatively evaluate the translation performance. The possibility of unsupervised learning with unpaired/unregistered SAR and optical images is also explored. Results show that the proposed translation network works well under many scenarios and it could potentially be used for assisted SAR interpretation.

关键词： synthetic aperture radar generative adversarial network (GAN) image translation cascaded residual connection Frechet inception distance

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FUSAR-Ship:building a high-resolution SAR-AIS matchup dataset of Gaofen-3 for ship detection and recognition

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Science China(Information Sciences) 2020年第4期63卷 40-58页

作者： Xiyue HOU Wei AO Qian SONG Jian LAI Haipeng WANG Feng XU key lab for Information Science of Electromagnetic Waves (moe) Fudan University

Gaofen-3(GF-3) is China’s first civil C-band fully polarimetric spaceborne synthetic aperture radar(SAR) primarily missioned for ocean remote sensing and marine monitoring. This paper proposes an automatic sea segmentation, ship detection, and SAR-AIS matchup procedure and an extensible marine target taxonomy of 15 primary ship categories, 98 sub-categories, and many non-ship targets. The FUSARShip high-resolution GF-3SAR dataset is constructed by running the procedure on a total of 126 GF-3 scenes covering a large variety of sea, land, coast, river and island scenarios. It includes more than 5000 ship chips with AIS messages as well as samples of strong scatterer, bridge, coastal land, islands, sea and land clutter. FUSAR-Ship is intended as an open benchmark dataset for ship and marine target detection and recognition. A preliminary 8-type ship classification experiment based on convolutional neural networks demonstrated that an average of 79% test accuracy can be achieved.

关键词： FUSAR-Ship Gaofen-3 SAR-AIS matchup automatic target recognition multi-scale CFAR deep learning

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Bacterial microcompartment-mimicking Pickering emulsion droplets for detoxification of chemical threats under sweet conditions

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Science China Chemistry 2024年第9期67卷 3039-3049页

作者： Xiao Xu Wenqi Xie Ting Wu Chen Chen Xiaoning Chen Yuheng Yang Hao Lian Hao Chen Xiaofeng Cheng Zhitong Chen Guojun Chen Chaoqun Liu Lanlan Chen Yu He Zhaowei Chen Bernard P.Binks Huanghao Yang New Cornerstone Science laboratory MOE Key Laboratory for Analytical Science of Food Safety and BiologyCollege of ChemistryFuzhou UniversityFuzhou 350002China Institute of Biomedical and Health Engineering Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Department of Biomedical Engineering and the Rosalind&Morris Goodman Cancer Research Institute McGill UniversityMontreal QC H3A 1A3Canada School of Pharmacy Henan UniversityKaifeng 475004China Department of Chemistry University of HullHull HU67RXUK

Chemical warfare agents represent a severe threat to mankind and their efficient decontamination is a global ***,traditional disposal strategies have limitations,including high energy consumption,use of aggressive reagents and generation of toxic ***,inspired by the compartmentalized architecture and detoxification mechanism of bacterial microcompartments,we constructed oil-in-water Pickering emulsion droplets stabilized by hydrogen-bonded organic framework immobilized cascade enzymes for decontaminating mustard gas simulant(2-chloroethyl ethyl sulfide,CEES)under sweet *** exemplified droplet systems were developed with two-enzyme(glucose oxidase/chloroperoxidase)and threeenzyme(invertase/glucose oxidase/chloroperoxidase)cascades,both achieving over 6-fold enhancement in decontamination efficiency compared with free enzymes and>99% selectivity towards non-toxic *** found that the favored mass transfer of sugars and CEES from their respective phases to approach the cascade enzymes located at the droplet surface and the facilitated substrate channeling between proximally immobilized enzymes were key factors in augmenting the decontamination *** importantly,the robustness of immobilized enzymes enabled easy reproduction of both the droplet formation and detoxification performance over 10 cycles,following long-term storage and in far-field locations.

关键词： Pickering emulsion biomimetics chemical warfare agent bacterial microcompartment biocatalysis

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Extraordinary Resonant Scattering in Imperfect Acoustic Cloak

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Chinese Physics Letters 2009年第1期26卷 153-156页

作者：程营刘晓峻 key lab of Modern Acoustics of moe Nanjing University Nanjing 210093

We present a systematic study on the extraordinary resonant scattering in imperfect acoustic cloak by means of acoustic scattering theory. Analysis results demonstrate that the resonances are inevitable due to the perturbation to the ideal clo^k, and specific resonance modes are excited by specific order waves. The strength of resonance is determined by the magnitude of perturbation and each order wave＇s sensitivity to the perturbation. Further studies reveal the unique scattering characters of different resonance modes.

关键词： field emission molybdenum dioxide enhancement factor

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Towards low emissions and high thermal efficiency of gasoline compression ignition engine under high loads by modulating the fuel reactivity and injection strategy

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Science China(Technological Sciences) 2020年第1期63卷 96-104页

作者： JIANG ChenXu LI ZiLong QIAN Yong LU XingCai key lab for Power Machinery and Engineering of moe Shanghai Jiao Tong University

Gasoline compression ignition(GCI) is a practicable way to obtain low emissions and high thermal efficiency of gasoline-like fuels in internal combustion engines. In this paper, the research octane number(RON) and injection strategy were coordinated to optimize the GCI engine performance and emissions under high loads. The direct injection and port injection were used to achieve two injection strategies: direct injection(DI) and port injection plus direct injection(PIDI), and the primary reference fuels(PRF) with the RON of 60, 70, 80 and 90 were used. The results show that using lower RON fuels under high loads, DI mode can achieve higher efficiency, while PIDI mode can achieve lower combustion noise at an expense of slightly lower fuel economy. When the DI mode is converted to PIDI mode with a pre-injection ratio of 30%, using PRF70 under 12 bar and the exhaust gas recirculation(EGR) rate of 40%, the gross indicated thermal efficiency and the maximum pressure rise rate are reduced by 1% and by 2 bar/°CA, respectively, while the particle emissions also decrease significantly, thus achieving low emissions and high efficiency. However, under the same load and EGR rate, DI mode produces less regulated and unregulated emissions than PIDI mode. In addition, the effect of fuel RON was obvious, the lower RON fuels exhibit obvious three-stage heat release in PIDI mode, however, PRF90 with higher RON only exhibits two-stage heat release, and the peak value of the firststage heat release rate is also lower than those of other fuels.

关键词： gasoline compression ignition regulated and unregulated emissions injection strategy particle emissions fuel reactivity

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Enzyme-metal nanocomposites for antibacterial applications

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Particuology 2022年第5期20卷 134-139页

作者： Jiarong Xiong Xinyi cai Jun Ge key lab for industrial biocatalysis Ministry of EducationDepartment of Chemical EngineeringTsinghua UniversityBeijing 100084China Institute of Biopharmaceutical and Health Engineering Tsinghua Shenzhen International Graduate SchoolShenzhen 518055China

Metal nanoparticles have been used as antibacterial agents widely,and the combined use of enzymes and metal nanoparticles promotes antibacterial activity,achieving a synergistic ***,enzymes decrease the amounts of metals and increase biocompatibility,thereby reducing toxicity of ***,the efficiency of enzymes is hindered when coupled with metals,which causes deactivation in the function of *** can a balance be struck between metals and enzymes?Although the antibacterial mechanism of metal nanoparticles is relatively clear,how enzyme-metal nanocomposites work against bacteria is not ***,we describe several examples on the synthesis of enzyme-metal nanocomposites via co-immobilization or in situ reduction and summarize how enzyme-metal nanocomposites combat microorganisms.

关键词： Enzyme-metal nanocomposites Applications Preparations Antibacterial mechanisms

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Diffusion process in enzyme-metal hybrid catalysts

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Frontiers of Chemical Science and Engineering 2022年第6期16卷 921-929页

作者： Shitong Cui Jun Ge key lab for industrial biocatalysis Ministry of EducationDepartment of Chemical EngineeringTsinghua UniversityBeijing 100084China Institute of Biopharmaceutical and Health Engineering Tsinghua Shenzhen International Graduate SchoolShenzhen 518055China

Enzyme-metal hybrid catalysts bridge the gap between enzymatic and heterogeneous catalysis,which is significant for expanding biocatalysis to a broader *** studies have demonstrated that the enzyme-metal hybrid catalysts exhibited considerably higher catalytic efficiency in cascade reactions,compared with that of the combination of separated enzyme and metal ***,the precise mechanism of this phenomenon remains ***,we investigated the diffusion process in enzyme-metal hybrid catalysts using Pd/lipase-Pluronic conjugates and the combination of immobilized lipase(Novozyme 435)and Pd/C as *** reference to experimental data in previous studies,the Weisz-Prater parameter and efficiency factor of internal diffusion were calculated to evaluate the internal diffusion limitations in these ***,a kinetic model was developed and fitted to describe the proximity effect in hybrid *** indicated that the enhanced catalytic efficiency of hybrid catalysts may arise from the decreased internal diffusion limitation,size effect of Pd clusters and proximity of the enzyme and metal active sites,which provides a theoretical foundation for the rational design of enzyme-metal hybrid catalysts.

关键词： enzyme-metal hybrid catalyst internal diffusion proximity effect kinetic model

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