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CCS Chemistry 2021年第12期3卷 367-376页

作者： Yang Lu Ziyang Liu Yuewei Zhang Chen Zhang Jinbei Wei Zhengyang Bin Xuewen Wang Dongdong Zhang Lian Duan Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084 Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200 Center for Flexible Electronics Technology Tsinghua UniversityBeijing 100084 College of Chemistry Sichuan UniversityChengduSichuan 610064 Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of SciencesBeijing 100049

Ohmic cathode contact can be formed readily via coordination-activated n-doping(CAN),by co-evaporating air-stable metals(e.g.,silver)and organic ligands with coordination *** has been proposed that increasing the nucl... 详细信息

关键词： n-dopant phenanthroline coordination ohmic contact inactive metals

Unravelling Crystal Structures of Covalent Organi Frameworks by Electron Diffraction Tomography

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Chinese Journal of Chemistry 2020年第10期38卷 1153-1166页

作者： Tu Sun Wei Lei Yanhang Ma Yue-Biao Zhang School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China

Featuring the art of covalent chemistry on 2D and 3D with molecular precision,covalent organic frameworks(COFs)have attracted immense interests from inorganic,organic,polymer,materials and energy ***,due to the synthetic challenge of"crystallization problem",structural determination of COFs has been the bottle-neck in speeding up their discovery and design,as well as building up their structureproperty *** diffraction tomography(EDT)has been developed to determine crystal structures of COFs with only sub-micrometer sized single crystals,which enabled the ob initio determination of crystal structure,molecular connectivity,pore metrics,and host-guest interaction at the atomic *** this review,w e summarized the recent developments of EDT for addressing challenges in structure determinations of such e-beam sensitive,organic porous crystals,covering comprehensively automatic data collection,low dose,cryogenic protocols,structural solution method,powder X-ray diffraction refinement,and high-resolution transmission electron microscopy(HRTEM)imaging *** do believe the EDT will propel this field into the new era of COF chemistry with atomic precision,and we envision the wide application of artificial intelligence will promote the structural determination and particle analysis of COFs and related materials。

关键词： Electron valent refinement

Effect mechanism of nonane-1,1-bisphosphonic acid as an alternative collector in monazite flotation:Experimental and calculational studies

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Journal of Rare Earths 2022年第5期40卷 822-830,I0006页

作者： Zhao Cao Xu Wu Sultan Ahmed Khoso Wenbo Zhang Yuling Liu Mengjie Tian Jieliang Wang Institute of Mining Engineering Inner Mongolia University of Science and TechnologyBaotou 014010China School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources Central South UniversityChangsha 410083China Department of Mining Engineering Mehran University of Engineering&TechnologyJamshoro 76062Pakistan Powder Metallurgy Research Institute Central South UniversityChangsha 410083China Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources Wuhan 430081China

Monazite((Ce,La)PO_(4))is one of the major types of light rare earth minerals from which the light rare earth elements cerium(Ce)and lanthanum(La)are economically *** is extensively used to recover fine-grained *** oleate(NaOL)is considered as the collector with strong collecting ability for monazite ***,this study shows that its collecting ability is still *** this paper,a phosphonic acid,nonane-1,1-bisphosphonic acid(C9-BPA),was employed as the novel collector in place of *** experiments show that even when the C9-BPA dosage is less than one-fifth of the NaOL dosage,the monazite recove ry using C9-BPA as the collector is approximately 22 wt%higher than that using *** mechanism by which C9-BPA adsorbs on monazite was investigated using zeta potential,infrared(IR)spectroscopy and X-ray photoelectron spectroscopy(XPS)measurements as well as first-principles *** potential measurements show a more significant decrease in the zeta potentials of monazite after the addition of C9-BPA compared to those after the addition of *** C9-BPA-treated monazite,the characteristic peaks of C9-BPA are observed in the IR and C 1 s XPS spectrum,whereas for monazite treated by NaOL,no characteristic peak of NaOL was *** results show that C9-BPA has a stronger affinity towards the monazite surface than NaOL as confirmed by the higher adsorption energy of CP-BPA on the monazite surface(-204.22 kJ/mol)than NaOL(-48.48 kJ/mol).This study demonstrates an extensive application value and prospect of C9-BPA in monazite flotation and helps design novel collectors with strong collecting ability for monazite flotation.

关键词： Nonane-1,1-bisphosphonic acid(C9-BPA) Monazite Flotation First-principles calculation Rare earths

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Advances in fungal-assisted phytoremediation of heavy metals:A review

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Pedosphere 2021年第3期31卷 475-495页

作者： Muhammad KHALID Saeed UR-RAHMAN Danial HASSANI Kashif HAYAT Pei ZHOU Nan HUI Key Laboratory of Urban Agriculture School of Agriculture and BiologyShanghai Jiao Tong UniversityShanghai 200240China Joint International Research Laboratory of Metabolic&Developmental Sciences Key Laboratory of Urban Agriculture(South)of Ministry of AgriculturePlant Biotechnology Research CenterFudan-SJTU-Nottingham Plant Biotechnology R&D CenterSchool of Agriculture and BiologyShanghai Jiao Tong UniversityShanghai 200240China

Trace metals such as manganese(Mn),copper(Cu),zinc(Zn),and iron(Fe)are essential for many biological processes in plant life ***,in excess,they can be toxic and disrupt plant growth processes,which is economically undesirable for crop *** this reason,processes such as homeostasis and transport control of these trace metals are of constant interest to scientists studying heavily contaminated *** is a promising cleanup technology for soils polluted with heavy ***,this technique has some disadvantages,such as the slow growth rate of metal-accumulating plant species,low bioavailability of heavy metals,and long duration of ***-assisted phytoremediation is a promising strategy for hyperaccumulating,detoxifying,or remediating soil *** mycorrhizal fungi(AMF)are found in association with almost all plants,contributing to their healthy performance and providing resistance against environmental *** colonize plant roots and extend their hyphae to the rhizosphere region,assisting in mineral nutrient uptake and regulation of heavy metal *** fungi exist in every healthy plant tissue and provide enormous services to their host plants,including growth enhancement by nutrient acquisition,detoxification of heavy metals,secondary metabolite regulation,and enhancement of abiotic/biotic stress *** aim of the present work is to review the recent literature regarding the role of AMF and endophytic fungi in plant heavy metal tolerance in terms of its regulation in highly contaminated conditions.

关键词： arbuscular mycorrhizal fungi bioremediation endophytic fungi environmental stress metal tolerance microbe plant transporter soil contaminant

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Intent defined optical network with artificial intelligence-based automated operation and maintenance

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Science China(Information Sciences) 2020年第6期63卷 55-66页

作者： Hui YANG Kaixuan ZHAN Qiuyan YAO Xudong ZHAO Jie ZHANG young LEE State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications Huawei Technologies Co. Ltd

Traditionally, the operation and maintenance of optical networks rely on the experience of engineers to configure network parameters, involving command-line interface, middle-ware scripting, and troubleshooting. However, with the emerging of newly B5 G applications, the traditional configuration cannot meet the requirement of real-time automatic configuration. Operators need a new configuration way without manual intervention at an underlying optical transport network. To cope with this issue, we propose an intent defined optical network(IDON) architecture toward artificial intelligence-based optical network automated operation and maintenance against service objective, by introducing a self-adapted generation and optimization(SAGO) policy in a customized manner. The IDON platform has three key innovations including intent-orient configuration translation, self-adapted generation and optimization policy, and close-loop intent guarantee operation. Focusing specifically on communication requirements, the IDON uses natural language processing to construct semantic graphs to understand, interact, and create the required network configuration. Then, deep reinforcement learning(DRL) is utilized to find the composition policy that satisfies the requirement of intent through the dynamic integration of fine-grained policies. Finally, the deep neural evolutionary network(DNEN) is introduced to achieve the intent guarantee at the milliseconds level. The feasibility and efficiency are verified on enhanced SDN testbed. Finally, we discuss several related challenges and opportunities for unveiling a promising upcoming future of intent defined optical network.

关键词： optical network artificial intelligence network automation intent defined network

Broadband and sensitive two-dimensional halide perovskite photodetector for full-spectrum underwater optical communication

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Nano Research 2021年第4期14卷 1210-1217页

作者： Dejian Yu Fei Cao Yu Gu Zeyao Han Jiaxin Liu Bo Huang Xiaobao Xu Haibo Zeng Institute of Optoelectronics&Nanomaterials MIIT Key Laboratory of Advanced Display Materials and DevicesSchool of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China

Full-spectrum underwater optical communication(UOC)is of great significance for major strategic needs including resource development,scientific exploration,and homeland *** the core of the full-spectrum UOC system,photodetectors(PDs)are plagued by stringent requirements including a broadband response,intrinsic water resistance,and a high *** this work,two-dimensional(2D)halide perovskites(HPs)and corresponding PDs are constructed by stearamine(SA),representing the rarely explored long-chain aliphatic amine series,to own waterproofness,ultralow noise,and superior optoelectronic performance,which consequently enable a high suitability for *** dimensionality and composition modulations to extend the absorption onset down to 1.5 eV,a broadband response covering the entire transmission window of water(>1.55 eV)for full-spectrum UOC can be ***,featuring a high responsivity of 3.27 A·W^(-1),a peak external quantum efficiency(EQE)of 630%,fast rise/decay times of 0.35 ms/0.54 ms,a superior detectivity up to 1.35×10^(12)Jones and the capability to distinguish various waveforms and light intensities,the PDs present sensitive and persistent photoresponse *** a result,proof-of-concept wireless transmission of ASCII codes in water is demonstrated.

关键词： two-dimensional(2D)halide perovskite photodetector water stability broadband photoresponse underwater optical communication

Ionizable lipid-assisted efficient hepatic delivery of gene editing elements for oncotherapy

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Bioactive Materials 2022年第3期7卷 590-601页

作者： Chunhui Li Tongren Yang Yuhua Weng Mengjie Zhang Deyao Zhao Shuai Guo Bo Hu Wanxuan Shao Xiaoxia Wang Abid Hussain Xing-Jie Liang Yuanyu Huang School of Life Science Advanced Research Institute of Multidisciplinary ScienceInstitute of Engineering MedicineKey Laboratory of Molecular Medicine and BiotherapyBeijing Institute of TechnologyBeijing100081China Department of Radiation Oncology The First Affiliated Hospital of Zhengzhou UniversityErqiZhengzhou450000China Institute of Molecular Medicine College of Future TechnologyPeking UniversityBeijing100871China Chinese Academy of Sciences(CAS)Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijing100190China School of Materials and the Environment Beijing Institute of TechnologyZhuhai519085China

CRISPR/Cas9-based gene editing has emerged as a powerful biotechnological tool,that relies on Cas9 protein and single guided RNA(sgRNA)to edit target ***,the lack of safe and efficient delivery carrier is one of the crucial factors restricting its clinical ***,we report an ionizable lipid nanoparticle(iLP181,pKa=6.43)based on iLY1809 lipid enabling robust gene editing in vitro and in *** iLP181 effectively encapsulate psgPLK1,the best-performing plasmid expressing for both Cas9 protein and sgRNA targeting Polo-like kinase 1(PLK1).The iLP181/psgPLK1 nanoformulation showed uniformity in size,regular nanostructure and nearly neutral zeta potential at pH *** nanoformulation effectively triggered editing of PLK1 gene with more than 30%efficiency in HepG2-Luc ***181/psgPLK1 significantly accumulated in the tumor for more than 5 days after a single intravenous *** addition,it also achieved excellent tumor growth suppression compared to other nucleic acid modalities such as siRNA,without inducing adverse effects to the main organs including the liver and *** study not only provides a clinically-applicable lipid nanocarrier for delivering CRISPR/Cas system(even other bioactive molecules),but also constitutes a potential cancer treatment regimen base on DNA editing of oncogenes.

关键词： CRISPR/Cas Gene editing Lipid nanoparticle PLK1 Cancer therapy

Identification and characterization of a monoclonal antibody blocking the SARS-CoV-2 spike protein–ACE2 interaction

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Cellular & Molecular Immunology 2021年第6期18卷 1562-1564页

作者： MengYa Yuan YaoYing Wan Cui Liu Yue Li\ZhaoYuan Liu ChangDong Lin JianFeng Chen State Key Laboratory of Cell Biology Center for Excellence in Molecular Cell ScienceShanghai Institute of Biochemistry and Cell BiologyChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghaiChina School of Life Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhouChina

Because COVID-19 has spread as a global pandemic,the development of therapeutics for this disease,such as neutralizing antibodies that can efficiently block SARS-CoV-2 infection,is urgently *** the infection of host cells by SARS-CoV-2,the spike(S)glycoprotein of SARS-CoV-2 plays the most crucial roles in viral entry and cell *** S protein includes two components,the S1 and S2 *** S1 subunit is vital in determining tissue tropism and host ranges and consists of the N-terminal domain and C-terminal receptor-binding domain(RBD).1,2 Of note,the RBD of the S protein(S-RBD)supports the binding of the S protein to angiotensin-converting enzyme 2(ACE2)on host cells,contributing to cell entry by SARS-CoV-2.3 Therefore,the S-RBD is widely used for the development of neutralizing antibodies,small-molecule inhibitors and vaccines.

关键词： ACE2 monoclonal infection

Institutionalized and systematized gaming for multi-agent systems

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Frontiers of Information Technology & Electronic Engineering 2022年第7期23卷 991-994页

作者： Jun LU Fei-Yue WANG Qi DONG Qinglai WEI China Academy of Electronics and Information Technology Beijing 100049China School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100049China

Multi-agent system gaming(MASG)is widely applied in military intelligence,information networks,unmanned systems,intelligent transportation,and smart grids,exhibiting systematic and organizational *** requires the multi-agent system perceive and act in a complex dynamic environment and at the same time achieve a balance between individual interests and the maximization of group interests within the system.

关键词： agent networks individual

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Ceftazidime is a potential drug to inhibit SARS-CoV-2 infection in vitro by blocking spike protein-ACE2 interaction

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Signal Transduction and Targeted Therapy 2021年第6期6卷 1671-1674页

作者： ChangDong Lin Yue Li YueBin Zhang ZhaoYuan Liu Xia Mu Chenjian Gu Jing Liu Yutang Lr GuoHui Li JianFeng Chen State Key Laboratory of Cell Biology Center for Excellence in Molecular Cell ScienceShanghai Institute of Biochemistry and Cell BiologyChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghaiChina State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina Key Laboratory of Medical Molecular Virology(MOE/NHC/CAMS) Department of Medical Microbiology and ParasitologySchool of Basic Medical SciencesShanghai Medical CollegeFudan UniversityShanghaiChina BSL-3 laboratory of Fudan University School of Basic Medical SciencesShanghai Medical CollegeFudan UniversityShanghaiChina School of Life Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhouChina

Dear Editor,Coronavirus disease 2019(COVID-19)has spread globally as a severe pandemic,which is caused by a novel coronavirus named Severe Acute Respiratory Syndrome coronavirus 2(SARS-CoV-2).1 COVID-19 is a serious threat to healthcare systems,economies,and is devastating to some populations,such as the elderly and those with *** is likely to coexist with human beings for a long ***,there is still no effective cure for COVID-19,especially the critically ill patients.

关键词： ACE2 Acute likely