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Semisynthesis of homogeneous spike RBD glycoforms from SARS-CoV-2 for profiling the correlations between glycan composition and function

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National Science Review 2024年第2期11卷 145-154页

作者： Farong Ye Cheng Li feng-Liang Liu xinliang Liu Peng Xu Rong-Hua Luo Wenping Song Yong-Tang Zheng Tianlei Ying Biao Yu Ping Wang Center for Chemical Glycobiology Frontiers Science Center for Transformative Molecules Zhangjiang Institute for Advanced Study School of Chemistry and Chemical Engineering Shanghai Jiao Tong University MOE/NHC/CAMS Key Laboratory of Medical Molecular Virology Shanghai Frontiers Science Center of Pathogenic Microorganisms and Infection Shanghai Institute of Infectious Disease and BiosecurityShanghai Engineering Research Center for Synthetic ImmunologySchool of Basic Medical Sciences Shanghai Medical College Fudan University Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province Center for Biosafety Mega-Science Kunming Institute of ZoologyChinese Academy of Sciences State Key Laboratory of Bioorganic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shenzhen Research Institute of Shanghai Jiao Tong University

Vaccines have been the primary remedy in the global fight against coronavirus disease 2019（COVID-19）.The receptor-binding domain（RBD） of the spike protein, a critical viral immunogen, is affected by the heterogeneity of its glycan structures and relatively low immunogenicity. Here, we describe a scalable synthetic platform that enables the precise synthesis of homogeneously glycosylated RBD, facilitating the elucidation of carbohydrate structure–function relationships. Five homogeneously glycosylated RBDs bearing biantennary glycans were prepared, three of which were conjugated to T-helper epitope(Tpep) from tetanus toxoid to improve their weak immune response. Relative to natural HEK293-derived RBD, synthetic RBDs with biantennary N-glycan elicited a higher level of neutralising antibodies against SARS-CoV-2 in mice. Furthermore, RBDs containing Tpepelicited significant immune responses in transgenic mice expressing human angiotensin-converting enzyme 2. Our collective data suggest that trimming the N-glycans and Tpepconjugation of RBD could potentially serve as an effective strategy for developing subunit vaccines providing efficient protection.

关键词： peptide ligation glycosylation glycoprotein

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The key challenges and future opportunities of electrochemical capacitors

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Journal of Energy Chemistry 2023年第1期76卷 459-461,I0012页

作者： Fangyan Liu xinliang feng Zhong-Shuai Wu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Center for Advancing Electronics Dresden(Cfaed)and Faculty of Chemistry and Food Chemistry Technische Universitat Dresden01062 DresdenGermany Department of Synthetic Materials and Functional Devices Max Planck Institute of Microstructure PhysicsD-06120 Halle(Saale)Germany

Electrochemical capacitors(ECs)with unique merits of fast charge/discharge rate and long cyclability are one of the representative electrochemical energy storage systems,possessing wide applications in power electroni... 详细信息

关键词： Electrochemical capacitors Electrical double layer capacitors Pseudocapacitors Li-ion capacitors Microscale electrochemical capacitors

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On-surface synthesis and edge states of NBN-doped zigzag graphene nanoribbons

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Nano Research 2023年第7期16卷 10436-10442页

作者： Xiao Chang Li Huang Yixuan Gao Yubin Fu Ji Ma Huan Yang Junzhi Liu Xiaoshuai Fu Xiao Lin xinliang feng Shixuan Du Hong-Jun Gao University of Chinese Academy of Sciences Beijing 100190China Beijing National Center for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Center for Advancing Electronics Dresden(CfAED)and Faculty of Chemistry and Food Chemistry Technische Universität DresdenDresden D-01069Germany Max Planck Institute of Microstructure Physics Weinberg 2Halle 06120Germany Department of Chemistry State Key Laboratory of Synthetic ChemistryThe University of Hong KongHong Kong 999077China Songshan Lake Materials Laboratory Dongguan 523808China

Zigzag graphene nanoribbons(ZGNRs)with spin-polarized edge states have potential applications in carbon-based spintronics.The electronic structure of ZGNRs can be effectively tuned by different widths or dopants,which requires delicately designed monomers.Here,we report the successful synthesis of ZGNR with a width of eight carbon zigzag lines and nitrogen-boronnitrogen(NBN)motifs decorated along the zigzag edges(NBN-8-ZGNR)on Au(111)surface,which starts from a specially designed U-shaped monomer with preinstalled NBN units at the zigzag edge.Chemical-bond-resolved non-contact atomic force microscopy(nc-AFM)imaging confirms the zigzag-terminated edges and the existence of NBN dopants.The electronic states distributed along the zigzag edges have been revealed after a silicon-layer intercalation at the interface of NBN-8-ZGNR and Au(111).Our work enriches the ZGNR family with a new dopant and larger width,which provides more candidates for future carbonbased nanoelectronic and spintronic applications.

关键词： zigzag graphene nanoribbons nitrogen-boron-nitrogen(NBN)dopant edge states scanning tunneling microscopy(STM) non-contact atomic force microscopy(nc-AFM) density functional theory(DFT)calculations

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Interfacial synthesis of crystalline quasi-two-dimensional polyaniline thin films for high-performance flexible on-chip micro-supercapacitors

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Chinese Chemical Letters 2022年第8期33卷 3921-3924页

作者： Tao Zhang Panpan Zhang Zhongquan Liao Faxing Wang Jinhui Wang Mingchao Wang Ehrenfried Zschech Xiaodong Zhuang Oliver G.Schmidt xinliang feng Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo 315201China Faculty of Chemistry and Food Chemistry Technische Universität DresdenDresden 01062Germany Center for Advancing Electronics Dresden(cfaed) Technische Universität DresdenDresden 01062Germany Fraunhofer Institute for Ceramic Technologies and Systems(IKTS) Dresden 01109Germany Material Systems for Nanoelectronics Chemnitz University of TechnologyChemnitz 09107Germany Institute for Integrative Nanosciences IFW DresdenDresden 01069Germany School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Special Functional Materials of Ministry of Education Henan UniversityKaifeng 475004China

Quasi-two-dimensional(q2 D)conducting polymer thin film synergizes the advantageous features of longrange molecular ordering and high intrinsic conductivity,which are promising for flexible thin film-based micro-supercapacitors(MSCs).Herein,we present the high-performance flexible MSCs based on highly ordered quasi-two-dimensional polyaniline(q2 D-PANI)thin film using surfactant monolayer assisted interfacial synthesis(SMAIS).Owing to high electrical conductivity,rich redox chemistry,and thin-film morphology,the q2 D-PANI MSCs show high volumetric specific capacitance(ca.360 F/cm^(3))and energy density(17.9 m Wh/cm^(3)),which outperform the state-of-art PANI thin-film based MSCs and promise for future flexible electronics.

关键词： 2D polymers Conducting polymers Interfacial synthesis Flexible electronics Microsupercapacitor

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Two-dimensional organic cathode materials for alkali-metal-ion batteries

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Journal of Energy Chemistry 2018年第1期27卷 86-98页

作者： Chao Zhang Chenbao Lu Fan Zhang feng Qiu Xiaodong Zhuang xinliang feng Shanghai Key Lab of Electrical Insulation and Thermal Ageing Shanghai Electrochemical Energy Devices Research CenterSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University School of Chemical and Environmental Engineering Shanghai Institute of Technology Department of Chemistry and Food Chemistry Center for Advancing Electronics Dresden(cfaed)Technische Universit?t Dresden

With the increasing demand for large-scale battery systems in electric vehicles（EVs） and smart renewable energy grids, organic materials including small molecules and polymers utilized as electrodes in rechargeable batteries have received increasing attraction. In recent years, two-dimensional（2D） organic materials possessing planar layered architecture exhibit optional chemical modification, high specific surface area as well as unique electrical/magnetic properties, which have been emerging as the promising functional materials for wide applications in optoelectronics, catalysis, sensing, etc. Integrating with high-density redox-active sites and hierarchical porous structure, significant achievements in 2D organic materials as cathode materials for alkali-metal-ion batteries have been witnessed. In this review, the recent progress in synthetic approaches, structure analyses, electrochemical characterizations of 2D organic materials as well as their application in alkali-metal-ion batteries containing lithium ion battery（LIB）, lithium sulfur battery（LSB）, lithium air battery（LAB） and sodium ion battery（SIB） are summarized systematically,and their current challenges including cycling stability and electron conductivity for cathode materials in battery fields are also discussed.

关键词： Organic material Two-dimensional Cathode Alkali-metal-ion battery

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Vinylene-Linked Two-Dimensional Covalent Organic Frameworks:Synthesis and Functions

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Accounts of Materials Research 2021年第4期2卷 252-265页

作者： Shunqi Xu Marcus Richter xinliang feng Technische Universität Dresden Center for Advancing Electronics Dresden(cfaed)and Faculty of Chemistry and Food ChemistryChair of Molecular Functional Materials01069 DresdenGermany

Two-dimensional covalent organic frameworks(2D COFs)with covalently bonded repeat units and crystalline,porous framework backbones have attracted immense attention since the first 2D COFs were reported by Yaghi’s group in 2005.The extended single-layer structures of 2D COFs are also generally considered to be the 2D polymers.The precise incorporation of molecular building blocks into ordered frameworks enables the synthesis of novel organic materials with designable and predictable properties for specific applications,such as in optoelectronics,energy storage,and conversion.In particular,the 2Dπ-conjugated COFs(2D-c-COFs)represent a unique class of 2D conjugated polymers that have 2D molecular-periodic structures with extended in-planeπ-conjugations.In the 2D-c-COFs,the conjugated skeletons andπ−πstacking interactions can provide the pathways for electron transport,while the porous channel can enable the loading of active sites for catalysis and sensing.Thus far,the synthesis of 2D-c-COFs has been mostly limited to Schiff base chemistry based on the condensation reaction between amine and aldehyde/ketone monomers because the construction of 2D COFs as thermodynamically controlled products generally requires a highly reversible reaction for error-correction processes.However,the high reversibility of imine linkages would conversely endow moderateπ-electron delocalization due to the polarized carbon−nitrogen bonds and poor stability against strong acids/bases.To achieve robust and highly conjugated 2D-c-COFs,a series of synthesis strategies have been developed,including a one-step reversible reaction with a bond-forming−bond braking−bond reforming function,a quasi-reversible reaction combing reversible and irreversible processes,and postmodifications converting labile bonds to a robust linkage.Among all of the reported 2D-c-COFs,vinylene-linked(also sp^(2)-carbon-linked)2D covalent organic frameworks(V-2D-COFs)with high in-planeπ-conjugation have attracted increasing interest after we reported the first V-2D-COFs v

关键词： conjugated bonds reversible

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Recent advances in graphene-based planar micro-supercapacitors for on-chip energy storage

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National Science Review 2014年第2期1卷 277-292页

作者： Zhong-Shuai Wu xinliang feng Hui-Ming Cheng Max Planck Institute for Polymer Research School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

The current development trend towards miniaturized portable electronic devices has signiicantly increased the demand for ultrathin, lexible and sustainable on-chip micro-supercapacitors that have enormous potential to complement, or even to replace, micro-bateries and electrolytic capacitors. In this regard,graphene-based micro-supercapacitors with a planar geometry are promising micro-electrochemical energy-storage devices that can take full advantage of planar coniguration and unique features of graphene.his review summarizes the latest advances in on-chip graphene-based planar interdigital micro-supercapacitors, from the history of their development, representative graphene-based materials(graphene sheets, graphene quantum dots and graphene hybrids) for their manufacture, typical microfabrication strategies(photolithography techniques, electrochemical methods, laser writing, etc.),electrolyte(aqueous, organic, ionic and gel), to device coniguration(symmetric and asymmetric). Finally,the perspectives and possible development directions of future graphene-based micro-supercapacitors are briely discussed.

关键词： graphene supercapacitors mirco-supercapacitors planar interdigital energy storage

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Electronic structure regulation of noble metal-free materials toward alkaline oxygen electrocatalysis

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eScience 2023年第4期3卷 20-38页

作者： Xia Wang Minghao Yu xinliang feng Max-Planck-Institute for Chemical Physics of Solids 01187 DresdenGermany Centre for Advancing Electronics Dresden(CFAED)&Faculty of Chemistry and Food Chemistry Technische Universit€at Dresden01062 DresdenGermany Max Planck Institute of Microstructure Physics 06120 HalleGermany

Developing highly efficient,inexpensive catalysts for oxygen electrocatalysis in alkaline electrolytes(i.e.,the oxygen reduction reaction(ORR)and the oxygen evolution reaction(OER))is essential for constructing advanced energy conversion techniques(such as electrolyzers,fuel cells,and metal–air batteries).Recent achievements in efficient noble metal-free ORR and OER catalysts make the replacement of conventional noble metal counterparts a realistic possibility.In particular,various electronic structure regulation strategies have been employed to endow these oxygen catalysts with attractive physicochemical properties and strong synergistic effects,providing significant fundamental understanding to advance in this direction.This review article summarizes recently developed electronic structure regulation strategies for three types of noble metal-free oxygen catalysts:transition metal compounds,single-atom catalysts,and metal-free catalysts.We begin by briefly presenting the basic ORR and OER reaction mechanisms,following this with an analysis of the fundamental relationship between electronic structure and intrinsic electrocatalytic activity for the three categories of catalysts.Subsequently,recent advances in electronic structure regulation strategies for noble metal-free ORR and OER catalysts are systematically dis-cussed.We conclude by summarizing the remaining challenges and presenting our outlook on the future for designing and synthesizing noble metal-free oxygen electrocatalysts.

关键词： Oxygen electrocatalysts Electronic structure Noble metal-free electrocatalysts Active sites Intrinsic activity

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Aqueous high-voltage all 3D-printed micro-supercapacitors with ultrahigh areal capacitance and energy density

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Journal of Energy Chemistry 2021年第12期30卷 514-520,I0012页

作者： Yu Liu Shuanghao Zheng Jiaxin Ma Yuanyuan Zhu Jiemin Wang xinliang feng Zhong-Shuai Wu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina b Center for Advancing Electronics Dresden&Department of Chemistry and Food Chemistry.Technische Universitat Dresden DresdenGermany University of Chinese Academy of Sciences Beijing 100049China Dalian National Laboratory for Clean Energy Dalian 116023Liaoning.China

With the rapid development of integrated and miniaturized electronics,the planar energy storage devices with high capacitance and energy density are in enormous demand.Hence,the advanced manufacture and fast fabrication of microscale planar energy units are of great significance.Herein,we develop aqueous planar micro-supercapacitors(MSCs) with ultrahigh areal capacitance and energy density via an efficient all-3 D-printing strategy,which can directly extrude the active material ink and gel electrolyte onto the substrate to prepare electrochemical energy storage devices.Both the printed active carbon/exfoliated graphene(AC/EG) electrode ink and electrolyte gel are highly processable with outstanding conductivity(~97 S cm^(-1) of electrode;-34.8 mS cm^(-1) of electrolyte),thus benefiting the corresponding shaping and electrochemical performances.Furthermore,the 3 D-printed symmetric MSCs can be operated stably at a high voltage up to 2.0 V in water-in-salt gel electrolyte,displaying ultrahigh areal capacitance of2381 mF cm^(-2) and exceptional energy density of 331 μWh cm^(-2),superior to previous printed micro energy units.In addition,we can further tailor the integrated 3 D-printed MSCs in parallel and series with various voltage and current outputs,enabling metal-free interconnection.Therefore,our all-3 D-printed MSCs place a great potential in developing high-power micro-electronics fabrication and integration.

关键词： 3D printing Micro-supercapacitors High-voltage Water-in-salt Graphene

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Advanced design of cathodes and interlayers for high-performance lithium-selenium batteries

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SusMat 2021年第3期1卷 393-412页

作者： Yanfeng Dong Pengfei Lu Yajun Ding Haodong Shi xinliang feng Zhong-Shuai Wu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianP.R.China Department of Chemistry College of SciencesNortheastern UniversityShenyangP.R.China Center for Advancing Electronics Dresden&Department of Chemistry and Food Chemistry Technische Universität DresdenDresdenGermany Dalian National Laboratory for Clean Energy Chinese Academy of SciencesDalianP.R.China

Lithium-selenium(Li-Se)batteries have attracted ever-increasing attention owing to high volumetric capacity comparable to lithium-sulfur batteries and excellent electronic conductivity of Se.However,unsatisfactory energy density and cycling life of Li-Se batteries mainly caused by low utilization of Se and shuttle effect of polyselenides(PSes)seriously prevent their commercial applica-tions.Herein,this work systematically reviews the recent advances of the state-of-the-art cathodes and interlayers in high-performance Li-Se batteries.First,the fundamental chemistries of Li-Se batteries are introduced in terms of var-ious Se precursors and electrochemical behaviors.Second,the main strategies in cathodes and interlayers for addressing poor conductivity of Se and shuttle effects of PSes are summarized as three-dimensional conductive skeletons for Se,physical confinement of Se,chemisorption and catalytic conversion of PSes,and free-standing interlayers and interlayers on separators.Further,the synthesis strategies and enhanced electrochemical performance are specially exemplified to highlight the possible enlightenments for constructing advanced cathodes and interlayers.Finally,the future challenges and perspectives of advanced cathodes and interlayers in high-performance Li-Se batteries are briefly discussed.

关键词： cathodes energy storage high energy density interlayers lithium-selenium batteries

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