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Visible-Light-Responsive Crystalline Solids by Equipping Covalent Organic Frameworks with Donor-Acceptor Stenhouse Adducts

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Chinese Journal of Chemistry 2023年第19期41卷 2469-2475页

作者： Yongli Duan Fanxi Sun ang Gao zhen Wang xiaoyu Xiong Lijun Mao Bo Han Chao He Xu Deng Yonghao zheng Dongsheng Wang School of Optoelectronic Science and Engineering University of Electronic Science and Technology of ChinaChengduSichuan610054 China State Key Laboratory of Southwestern Chinese Medicine Resources School of PharmacyChengdu University of Traditional Chinese MedicineChengduSichuan610041 China College of Polymer Science and Engineering Sichuan UniversityChengduSichuan610065 China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengduSichuan610054 China Institute of Electronic and Information Engineering of UESTC in Guangdong DongguanGuangdong523808 China

Controlling properties of crystalline solids by light remains a challenge because the lack of intrinsic structural flexibility limits the necessary molecular mobility for photoisomerization. In this work, we reported a series of visible-light-responsive covalent organic frameworks (COFs) by introducing donor-acceptor Stenhouse adducts (DASAs) with various electron-withdrawing moieties via a post-modified strategy. The DASAs-functionalized COFs exhibit distorted honeycomb layered topology with long-range periodicity. The DASAs grafted on the skeletons are pointing into the nanopores of COFs, which weakens intermolecular aggregation and ensures sufficient free volume to undergo reversible isomerization between linear and cyclic states. Furthermore, the crystalline and optical properties of COFs as well as the geometrical size and hydrophilicity inside the nanopores were reversibly controlled by alternating visible light irradiation and heat. Finally, methyl violet was used as the cargo molecules to be immobilized into the nanopores of COFs, which showed fast release under controlling of visible light.

关键词： Covalent organic frameworks Donor-acceptor stenhouse adducts Photoresponsive Crystalline solids Cargo release lsomerization

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SARS-CoV-2 RBD and Its Variants Can Induce Platelet Activation and Clearance:Implications for Antibody Therapy and Vaccinations against COVID-19

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Research 2024年第3期2023卷 1-15页

作者： Xiaoying Ma Jady Liang Guangheng zhu Preeti Bhoria Aron A.Shoara Daniel T.MacKeigan Christopher J.Khoury Sladjana Slavkovicl Lisha Lin Danielle Karakas ziyan Chen Viktor Prifti zhenze Liu Chuanbin Shen Yuchong Li Cheng z.ang Jiayu Dou zack Rousseau Jiamin z.ang Tiffany Ni Xi Lei Pingguo Chen xiaoyu Wu Hamed Shaykhalishahi Samira Mubareka Kim AConnelly Haibo z.ang Ori Rotstein Heyu Ni Department of Laboratory Medicine and Pathobiology University of TorontoTorontoONCanada Department of Laboratory Medicine Keenan Research Centre for Biomedical Science of St.Michael’s HospitalTorontoONCanada Toronto Platelet Immunobiology Group TorontoONCanada Department of Physiology University of TorontoTorontoONCanada CCOA Therapeutics Inc. TorontoONCanada Canadian Blood Services Centre for Innovation TorontoONCanada The State Key Laboratory of Respiratory Disease Guangzhou Institute of Respiratory DiseaseThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdongChina Department of Laboratory Medicine The Second Affliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina Advanced Pharmaceutics&Drug Delivery Laboratory Leslie Dan Faculty of PharmacyUniversity of TorontoTorontoONCanada Department of Medical Microbiology and Infectious Disease Sunnybrook Health Science CentreToronto ONCanada Department of Medicine University of TorontoTorontoONCanada Division of Cardiology.St.Michael's Hospital TorontoONCanada Department of Anesthesiology and Pain Medicine and Division of Critical Care Medicine University of TorontoTorontoONCanada interdepartmental Division of Critical Care Medicine University of TorontoTorontoONCanada Department of Surgery University of Toronto TorontoONCanada.

The COVID-19 pandemic caused by SARS-CoV-2 virus is an ongoing global health *** cases of COVID-19 and the rare cases of COVID-19 vaccine-induced-thrombotic-thrombocytopenia(VITT)are both associated with thrombosis and thrombocytopenia;however,the underlying mechanisms remain inadequately *** infection and vaccination utilize the spike protein receptor-binding domain(RBD)of *** found that intravenous injection of recombinant RBD caused significant platelet clearance in *** investigation revealed the RBD could bind platelets,cause platelet activation,and potentiate platelet aggregation,which was exacerbated in the Delta and Kappa *** RBD–platelet interaction was partially dependent on theβ3 integrin as binding was significantly reduced inβ3−/−***,RBD binding to human and mouse platelets was significantly reduced with relatedαIIbβ3 antagonists and mutation of the RGD(arginine-glycine-aspartate)integrin binding motif to RGE(arginine-glycine-glutamate).We developed anti-RBD polyclonal and several monoclonal antibodies(mAbs)and identified 4F2 and 4H12 for their potent dual inhibition of RBD-induced platelet activation,aggregation,and clearance in vivo,and SARS-CoV-2 infection and replication in Vero E6 *** data show that the RBD can bind platelets partially thoughαIIbβ3 and induce platelet activation and clearance,which may contribute to thrombosis and thrombocytopenia observed in COVID-19 and *** newly developed mAbs 4F2 and 4H12 have potential not only for diagnosis of SARS-CoV-2 virus antigen but also importantly for therapy against COVID-19.

关键词： Antibody diagnosis vaccine

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Refining constitutive relation by integration of finite element simulations and Gleeble experiments

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Journal of Materials Science & Technology 2019年第6期35卷 1039-1043页

作者： D.J. Yu D.S. Xu H. W ang z.B. zhao G.z. Wei R. Yang College of Sciences Northeastern University Shenyang 110004 China Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China

Thermo-mechanical coupled finite element calculations were carried out to simulate the Gleeble compression of the samples of a titanium alloy(Ti60), and the results are analyzed and compared with the actual compression tests conducted on a Gleeble 3800 thermo-mechanical simulator. The changes in temperature, stress and strain distribution in the samples and the source of error on the constitutive relations from Gleeble hot compression test were analyzed in detail. Both simulations and experiments showed that the temperature distribution in the specimen is not uniform during hot compression, resulting in significant deformation inhomogeneity and non-ignorable error in the flow stress strain relation,invalidating the uniform strain assumption commonly assumed when extracting the constitutive relation from Gleeble tests. Based on the finite element simulations with iterative corrections, we propose a scheme to refine the constitutive relations from Gleeble tests.

关键词： Titanium alloy Constitutive relation Finite element Compression Temperature distribution

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Gradient Structured Copper by Rotationally Accelerated Shot Peening

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Journal of Materials Science & Technology 2017年第7期33卷 758-761页

作者： X.Wang Y.S.Li Q.z.ang Y.H.zhao Y.T.zhu Nano Structural Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China School of Mechanical Engineering Nanjing University of Science and Technology Nanjing 210094 China Department of Materials Science and Engineering North Carolina State University Raleigh NC 27695 USA

A new technology-rotationally accelerated shot peening（RASP）, was developed to prepare gradient structured materials. By using centrifugal acceleration principle and large steel balls, the RASP technology can produce much higher impact energy compared to conventional shot peening. As a proof-of-concept demonstration, the RASP was utilized to refine the surface layer in pure copper（Cu） with an average grain size of 85 nm. The grain size increases largely from surface downwards the bulk, forming an800 ？m thick gradient-structured surface layer and consequently a micro-hardness gradient. The difference between the RASP technology and other established techniques in preparing gradient structured materials is discussed. The RASP technology exhibits a promoting future for large-scale manufacturing of gradient materials.

关键词： Microstructure Rotationally accelerated shot peening Gradient structure Hardness Copper

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STCF conceptual design report (Volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai L.P.An R.Aliberti Q.An X.z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko z.H.Bu F.M.Cai H.Cai J.J.Cao Q.H.Cao X.Cao z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen J.F.Chen K.Chen L.L.Chen P.Chen S.L.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng J.Cheng S.Cheng T.G.Cheng J.P.Dai L.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko J.M.Dias D.z.Ding L.Y.Dong W.H.Dong V.Druzhinin D.S.Du Y.J.Du z.G.Du L.M.Duan D.Epifanov Y.L.Fan S.S.Fang z.J.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng J.L.Fu J.Gao Y.N.Gao P.S.Ge C.Q.Geng L.S.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl J.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo Y.P.Guo z.H.Guo A.Guskov K.L.Han L.Han M.Han X.Q.Hao J.B.He S.Q.He X.G.He Y.L.He z.B.He z.X.Heng B.L.Hou T.J.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.J.Hu W.H.Hu X.H.Hu Y.C.Hu J.Hua G.S.Huang J.S.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.J.Huang Y.B.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.Ji J.J.Jia S.Jia z.K.Jia H.B.Jiang J.Jiang S.z.Jiang J.B.Jiao z.Jiao H.J.Jing X.L.Kang X.S.Kang B.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.Lei E.Levichev C.H.Li C.Li D.Y.Li F.Li G.Li G.Li H.B.Li H.Li H.N.Li H.J.Li H.L.Li J.M.Li J.Li L.Li L.Li L.Y.Li N.Li P.R.Li R.H.Li S.Li T.Li W.J.Li X.Li X.H.Li X.Q.Li X.H.Li Y.Li Y.Y.Li z.J.Li H.Liang J.H.Liang Y.T.Liang G.R.Liao L.z.Liao Y.Liao C.X.Lin D.X.Lin X.S.Lin B.J.Liu C.W.Liu D.Liu F.Liu G.M.Liu H.B.Liu J.Liu J.J.Liu J.B.Liu K.Liu K.Y.Liu K.Liu L.Liu Q.Liu S.B.Liu T.Liu X.Liu Y.W.Liu Y.Liu Y.L.Liu z.Q.Liu z.Y.Liu z.W.Liu I.Logashenko Y.Long C.G.Lu J.X.Lu N.Lu Q.F.Lü Y.Lu Y.Lu z.Lu P.Lukin F.J.Luo T.Luo X.F.Luo Y.H.Luo H.J.Lyu X.R.Lyu J.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko z.X.Meng R.Mitchell A.Nefediev Y.Nefedov S.L.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng L.Peng X.Y.Peng X.J.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao J.J.Qin J.J.Qin L.Q.Qin X.S.Qin T.L.Qiu J.Rademacker C.F.Redmer H.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of Geosciences Wuhan 430074China China University of Mining and Technology Xuzhou 221116China École Polytechnique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard *** STCF project in China is under development with an extensive R&D *** document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

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基于广靶代谢组学分析胡萝卜萜类代谢产物差异

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中国农业科学 2024年第16期57卷 3250-3263页

作者：齐晓雨孔小平周红伟严湘萍青海大学农牧学院西宁市蔬菜技术服务中心

【目的】萜类代谢物是评价胡萝卜风味品质的主要指标，对胡萝卜口感风味品质的形成具有重要作用。通过比较甜味浓烈组（-3）和苦味浓烈组（3）两组不同品种胡萝卜成熟期肉质根风味成分的代谢谱，为胡萝卜风味特征成分鉴定及优异资源的... 详细信息

【目的】萜类代谢物是评价胡萝卜风味品质的主要指标，对胡萝卜口感风味品质的形成具有重要作用。通过比较甜味浓烈组（-3）和苦味浓烈组（3）两组不同品种胡萝卜成熟期肉质根风味成分的代谢谱，为胡萝卜风味特征成分鉴定及优异资源的开发利用提供参考。【方法】建立高效的、具有高灵敏度和高通量的代谢组学分析平台和方法：采用UPLC-MS/MS方法对胡萝卜萜类代谢物进行分析测定，鉴定影响胡萝卜风味品质的萜类代谢物。采用OPLS-DA结果的VIP值、log2FC值筛选差异性代谢物（设置阈值：VIP>1、fold change≥2和fold change≤0.5）。【结果】利用UPLC-MS/MS技术对胡萝卜成熟期肉质根进行广泛靶向代谢组学测定，共筛选出50种显著差异的萜类代谢物，12个上调，2个下调。其中，显著上调的分别是京尼平（0.754）、粳米素B(0.936)、氧叶烯A(1.03)、乙酸香芹酯（1.04）、3-(3'-羟基丁基)-2,4,4-三甲基环己烷-2,5-二烯酮（0.662）；显著下调的是脱氢地芰普内酯（0.617）。从含量来看，苦味胡萝卜中萜类代谢物含量综合较高的分别是甲黑素甲苷A(16.98)、莪术醇（17.57）、京尼平（15.32），甜味胡萝卜中萜类代谢物含量综合较高的分别是甲黑素甲苷A(17.61)、异香附醇（16.01）、莪术醇（18.73）。根据P值来看，排名前5的分别是薇甘菊内酯（0.994）、寥二醛（0.991）、甲基(E)-5,11-二羟-4-((z)-2-甲基丁-2-烯酰氧基）-3,10-二亚甲基-2-氧代-2,3,3a,4,5,8,9,10,11,11a-十氢环癸并[b]呋喃-6-羧酸酯（0.978）、(3R)-3-羟基-紫罗兰酮（0.974）、布卢门醇A(0.969)。采用聚类分析方法对两组胡萝卜肉质根中的差异代谢物进行分析，其中，分组3中的代谢物含量要明显高于分组-3中的代谢物含量。利用KEGG进行差异代谢物注释和富集分析。【结论】萜类代谢物是影响胡萝卜风味的主要化合物，其中，京尼平、粳米素B、氧叶烯A、乙酸香芹酯、甲黑素甲苷A、莪术醇、异香附醇、脱氢地芰普内酯、薇甘菊内酯等萜类代谢物可能是影响胡萝卜风味的关键成分。

关键词：胡萝卜广泛靶向代谢组学风味物质萜类代谢物差异代谢物品质

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基于PLC与HMI的自动化仓库试验台设计与实现

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电子设计工程 2024年第19期32卷 103-107页

作者：王晓瑜王聚西安航空学院电子工程学院陕西西安710077 杭州和利时自动化有限公司浙江杭州310018

针对应用型大学自动化专业人才培养目标,立足培养学生解决复杂工程问题的能力,提出了选用西门子S7-300 PLC为主站,S7-1200 PLC为从站,主从站遵从PROFIBUS-DP通信协议,通过主站对从站的控制实现对丝杠-步进电机在X、Y、z三个方向的运动控... 详细信息

针对应用型大学自动化专业人才培养目标,立足培养学生解决复杂工程问题的能力,提出了选用西门子S7-300 PLC为主站,S7-1200 PLC为从站,主从站遵从PROFIBUS-DP通信协议,通过主站对从站的控制实现对丝杠-步进电机在X、Y、z三个方向的运动控制,由SMART 1000 IE V3触摸屏监控自动化仓库画面并搭建试验台。通过实验测试,基于PLC与HMI的自动化仓库试验台可在线实时完成立体仓库取货、存货等操作,且运行稳定、控制精度高。通过该试验台训练,有效提升学生PLC的程序设计与调试、通信组网技术的工程应用等能力。

关键词：自动化仓库试验台 PLC 步进电机 HMI

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能谱CT碘基值预测局部进展期胃腺癌新辅助化疗疗效

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放射学实践 2024年第1期39卷 77-82页

作者：马千昂黎海亮王艺蒋志强徐淑宁李靖郑州大学附属肿瘤医院(河南省肿瘤医院)医学影像科郑州450008 郑州大学附属肿瘤医院(河南省肿瘤医院)病理科郑州450008 郑州大学附属肿瘤医院(河南省肿瘤医院)普外科郑州450008 郑州大学附属肿瘤医院(河南省肿瘤医院)消化肿瘤内科郑州450008

目的:探讨基线期能谱CT碘基值预测局部进展期胃腺癌新辅助化疗(NAC)后病理学反应的应用价值。方法:2021年1月至2021年12月间,前瞻性对拟行新辅助化疗联合手术治疗的局部进展期胃腺癌患者于治疗前1周内行能谱CT动脉期、静脉期和延迟期三... 详细信息

目的:探讨基线期能谱CT碘基值预测局部进展期胃腺癌新辅助化疗(NAC)后病理学反应的应用价值。方法:2021年1月至2021年12月间,前瞻性对拟行新辅助化疗联合手术治疗的局部进展期胃腺癌患者于治疗前1周内行能谱CT动脉期、静脉期和延迟期三期增强扫描。收集患者临床病理信息,测量增强各期胃癌病灶的碘基值(IC),并除以主动脉碘基值得到标化碘基值(nIC)。根据术后AJCC肿瘤退缩分级(TRG)标准分为病理缓解良好组(TRG=0+1)和病理缓解不良组(TRG=2+3)。比较两组间临床指标和碘基值的差异,采用多因素回归方法筛选胃癌NAC疗效的独立预测因素,采用受试者工作特征曲线和曲线下面积(AUC)评估IC值的预测效能。结果:筛选出符合条件的患者70例,其中男55例,女15例,年龄范围30~71岁,中位年龄59岁。病理缓解良好22例,缓解不良48例。缓解良好组的静脉期标化碘基值(nICVP)、延迟期标化碘基值(nICDP)值低于缓解不良组,差异有统计学意义(t=2.391、2.270,P均z=2.306、2.161、2.228,P均0.684为诊断阈值,其预测病理缓解不良的敏感度、特异度、阳性预测值、阴性预测值分别为75.00%、81.80%、65.58%、87.71%。结论:基线期胃癌病灶nICVP和nICDP能鉴别新辅助化疗后不同病理缓解状态,nICVP和CT报告淋巴结状态是预测新辅助化疗疗效的独立风险因素,联合两者能进一步提高预测效能。

关键词：能谱CT 体层摄影术 X线计算机碘基值胃肿瘤疗效预测新辅助化疗

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Precise asymptotics in the law of the logarithm for random fields in Hilbert space

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Journal of zhejiang University-Science A(Applied Physics & Engineering) 2007年第4期8卷 651-659页

作者： FU Ke-ang z.ang Li-xin Department of Mathematics Zhejiang University Hangzhou 310027 China

Consider the positive d-dimensional lattice z^d（d≥2） with partial ordering ≤, let {XK; K∈z＋^d} be i.i.d, random variables taking values in a real separable Hilbert space （H, ｜｜·｜｜） with mean zero and covariance operator ∑ and set partial sums SN =∑K≤nXK,K,N∈z＋^d. Under some moment conditions, we obtain the precise asymptotics of a kind of weighted infinite series for partial sums SN as ε↓ by using the truncation and approximation methods. The results are related to the convergence rates of the law of the logarithm in Hilbert space, and they also extend the results of （Gut and Spataru, 2003）.

关键词： The law of the logarithm Random field Hilbert space. Tail probabilitv. Truncation method

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Identification of the dietary supplement capsaicin as an inhibitor of Lassa virus entry

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Acta Pharmaceutica Sinica B 2020年第5期10卷 789-798页

作者： Ke Tang xiaoyu z.ang Ying Guo State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China Department of Pharmacology Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China

The limited treatment options for the increasing occurrence of Lassa hemorrhagic fever in West Africa poses an urgent need for the discovery and development of novel *** supplements,especially natural products that are edible and safe for human use,are a good source of drug discovery with potential for uncovering novel applications,In this study,we tested 40 natural products of dietary supplements and identified capsaicin,a common dietary supplement abundant in chili peppers,as an inhibitor of Lassa virus(LASV)entry with EC5,of 6.9-10.0μmol/L using an HIV based pseudo virus *** inhibits the entry of five LASV strains but not against the Old World arenavirus lymphocytic choriomeningitis virus(LCMV),showing a preferential activity against *** inhibits LASV entry by blocking the pH dependent viral fusion through affecting the stable signal peptide(SSP)-GP2 transmembrane(GP2TM)region of the LASV surface *** study revealed the key residues Ala25,Val431,Phe434 and Val435 in SsP-CP2TM region in capsaicin’s antiviral *** study for the first time reveals a direct acting antiviral effect of capsaicin against the hemorrhagic fever causing LASV,providing detailed interaction hot spots in the unique SSP-GP2TMinterface of LASV glycoprotein that is crucial in fusion inhibition,and offering a new strategy in discovering and developing antivirals from natural products that are safe for human use.

关键词： Lassa virus Fusion inhibitor Capsaicin Dietary supplement Natural product antivirals Viral entry Hemorrhagic fever SSP-GP2TM region

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