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Self-assembled lamellar nanochannels in polyoxometalate-polymer nanocomposites for proton conduction

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Chinese Chemical Letters 2021年第6期32卷 2013-2016页

作者： Haibo He Gang Wang Shengchao Chai Xiang li liang Zhai lixin Wu haolong li State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China

The construction of nanostructured ion-transport channels is highly desirable in the design of advanced electrolyte materials,as it can enhance ion conductivity by offering short ion-transport *** this work,we present a supramolecular strategy to fabricate a nanocomposite electrolyte containing highly ordered lamellar proton-conducting nanochannels,by the electrostatic self-assembly of a polyoxometalate H_(3)PW1_(2)O_(4)O(PW)and a comb copolymer poly(4-methlstyrene)-graft-poly(N-vinyl pyrrolidone).PW can effectively regulate the self-assembling order of polymer moieties to form a large-ra nge lamellar structure,meanwhile,introducing protons into the nanoscale lamellar domains to build proton transport ***,the rigid PW clusters contribute a remarkable mechanical reinforcement to the *** lamellar nanocomposite exhibits a conductivity of 4.3×10^(-4)S/cm and a storage modulus of 1.1×10^(7)Pa at room *** study provides a new strategy to construct nanostructured ion-conductive pathways in electrolyte materials.

关键词： Self-assembly Lamellar nanochannels Nanocomposite electrolytes Comb copolymers Polyoxometalates

In situ crosslinking of polyoxometalate-polymer nanocomposites for robust high-temperature proton exchange membranes

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Chinese Chemical Letters 2023年第2期34卷 495-499页

作者： Gang Wang Jialin li Haibin li Haibo He liang Zhai Xiang li Tingting li Chengji Zhao lixin Wu haolong li State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China Key Laboratory of High Performance Plastics Ministry of EducationCollege of ChemistryJilin UniversityChangchun 130012China

The most practical high-temperature proton exchange membranes(PEMs) are phosphoric acid(PA)-doped polymer electrolytes. However, due to the plasticizing effect of PA, it is a challenge to address the trade-off between the proton conductivity and the mechanical performance of these materials. Here,we report an effective strategy to fabricate robust high-temperature PEMs based on the in situ electrostatic crosslinking of polyoxometalates and polymers. A comb copolymer poly(ether-ether-ketone)-grafted-poly(2-ethyl-2-oxazoline)(PGE) with transformable side chains was synthesized and complexed with H_(3)PW_(12)O_(40)(PW) by electrostatic self-assembly, forming PGE/PW nanocomposite membranes with bicontinuous nanostructures. After a subsequent PA-treatment of these membranes, high-temperature PEMs of PGE/PW/PA ternary nanocomposites were obtained, in which the in situ electrostatic crosslinking effect between PW and PGE side chains was generated in the hydrophilic domains of the bicontinuous structures. The microphase separation structure and the electrostatic crosslinking feature endow the PGE/PW/PA membranes with excellent anhydrous proton conductive ability while retaining high mechanical performance. The membranes show a high proton conductivity of 42.5 m S/cm at 150 ℃ and a high tensile strength of 13 MPa. Our strategy can pave a new route based on electrostatic control to design nanostructured polymer electrolytes.

关键词： Polyoxometalates Comb copolymers Self-assembly In situ crosslinking Proton exchange membranes

Effects of helium massive gas injection level on disruption mitigation on EAST

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Plasma Science and Technology 2021年第7期23卷 31-38页

作者： Abdullah ZAFAR Ping ZHU Ahmad Ali Shiyong ZENG haolong li CAS Key Laboratory of Geospace Environment and Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026Peopleʼs Republic of China International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074Peopleʼs Republic of China Department of Engineering Physics University of Wisconsin-MadisonMadisonWI 53706United States of America Pakistan Tokamak Plasma Research Institute Islamabad 3329Pakistan Department of Plasma Physics and Fusion Engineering University of Science and Technology of ChinaHefei 230026People’s Republic of China

In this study,NIMROD simulations are performed to investigate the effects of massive helium gas injection level on the induced disruption on EAST *** is demonstrated in simulations that two different scenarios of plasma cooling(complete cooling and partial cooling)take place for different amounts of injected *** the impurity injection above a critical level,a single MHD activity is able to induce a complete core temperature *** impurity injection below the critical level,a series of multiple minor disruptions occur before the complete thermal quench.

关键词： massive gas injection MHD instabilities major disruption minor disruption

Inactivated SARS-CoV-2 booster vaccine enhanced immune responses in patients with chronic liver diseases

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Virologica Sinica 2023年第5期38卷 723-734页

作者： Yongmei liu Jianhua Lu Haoting Zhan Wenfang Yuan Xiaomeng li Haiyan Kang haolong li Yongliang Chen linlin Cheng Xingli Sun Haojie Zheng Wei Wang Erhei Dai Yongzhe li Department of Clinical Laboratory State Key Laboratory of ComplexSevere and Rare DiseasesPeking Union Medical College HospitalPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100730China Division of liver Diseases The Fifth Hospital of ShijiazhuangHebei Medical UniversityShijiazhuang050021China Department of Clinical Laboratory The Fifth Hospital of ShijiazhuangHebei Medical UniversityShijiazhuang050021China Department of Clinical Laboratory Peking University People's HospitalBeijing100035China

Chronic liver disease(CLD)entails elevated risk of COVID-19 severity and *** effectiveness of the booster dose of inactivated SARS-CoV-2 vaccine in stimulating antibody response in CLD patients is ***,we conducted a cross-sectional study involving 237 adult CLD patients and 170 healthy controls(HC)to analyze neutralizing antibodies(NAbs)against SARS-CoV-2 prototype and BA.4/5 variant,anti-receptor binding domain(RBD)IgG,and total anti-SARS-CoV-2 *** levels of the total anti-SARS-CoV-2 antibodies,anti-RBD IgG and inhibition efficacy of NAbs were significantly elevated in CLD patients after the booster dose compared with the pre-booster dose,but were relatively lower than those of *** humoral responses decreased over time after booster *** neutralization efficiency of the serum against BA.4/5 increased but remained below the inhibition *** four SARS-CoV-2 antibodies,including total anti-SARS-CoV-2 antibodies,anti-RBD IgG and NAbs against prototype and BA.4/5,were lower in patients with severe CLD than those with non-severe *** booster shot,age and time after the last vaccine were the risk factors for seropositivity of NAb against BA.4/5 in CLD ***,white blood cell counts and hepatitis B core antibodies were the protective factors,and severe liver disease was the risk factor associated with seropositivity of total anti-SARS-CoV-2 ***,our data uncovered that antibody responses were improved in CLD patients and peaked at 120 days after the booster *** antibodies excepting total anti-SARS-CoV-2 antibodies declined after *** patients exhibited impaired immunologic responses to vaccination and weakened NAbs against BA.4/5,which hindered the protective effect of the booster shot against Omicron *** immune responses should be further evaluated to determine the optimal vaccine regimen for CLD patients.

关键词： Chronic liver disease(CLD) SARS-CoV-2 inactivated vaccines Booster vaccination Antibody response Immune response

Nanostructured Polymer Composite Electrolytes with Self-Assembled Polyoxometalate Networks for Proton Conduction

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CCS Chemistry 2022年第1期4卷 151-161页

作者： Gang Wang Jialin li lichao Shang Haibo He Tingting Cui Shengchao Chai Chengji Zhao lixin Wu haolong li State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012 Key Laboratory of High Performance Plastics Ministry of EducationCollege of ChemistryJilin UniversityChangchun 130012

The key challenge for the use of polymer electrolytes is to realize a high ionic conductivity without scarifying their mechanical ***,we report a facile strategy to prepare a nanostructured polymer electrolyte with both high proton conductivity and high modulus,based on the electrostatic self-assembly of polyoxometalate cluster H_(3)PW_(12)O_(40)(PW)and comb copolymer poly(ether-etherketone)-grafted-poly(vinyl pyrrolidone)(PEEK-gPVP).The incorporation of protonic acid PW can enable the PEEK-g-PVP to be highly proton conductive and create flexible composite electrolyte ***,nanoscale phase separation between PEEK domains and PVP/PW domains spontaneously occurs in these membranes,forming a bicontinuous structure with three-dimensional(3D)-connected PW *** to the dual role of PW networks as both proton transport pathways and mechanical enhancers,these membranes exhibit proton conductivities higher than 30 mS cm^(−1) and modulus over 4 ***,the direct methanol fuel cells equipped with these membranes show good cell *** the wide tunability of comb copolymers and polyoxometalates,this system can be extended to develop a variety of functional electrolyte materials,for example,the lithium-ion conductive electrolytes by using polyoxometalatebased lithium salts,which provides a promising platform to explore versatile electrolyte materials for energy and electronic applications.

关键词： self-assembly polyoxometalates polymer electrolytes nanocomposites proton conduction

A Uniform Parcel Delivery System Based on IoT

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Advances in Internet of Things 2018年第4期8卷 39-63页

作者： Yuhui Wang Hongbo Zhu Zechun Wang haolong li Guangyao li Hong Kong University of Science and Technology Hong Kong China University of Electronic Science and Technology of China Chengdu China Tianjin University Tianjin China Wuhan Yangtze International School Wuhan China Taiyuan University of Technology Taiyuan China

Nowadays, many different kinds of delivery companies transport their own kinds of parcels and offer their own services, which have caused a lot waste of resources. In addition, the volume of parcels in all cities that need to be delivered has been grown dramatically. To cope with these problems, a uniform parcel delivery system in a smart city which can offer service to all kinds of customers in the city including manufactures, department stores, restaurants, individual people and so forth was designed. This system uses IoT (Internet of Things) and RFID technology, combining computer network technology, wireless communication and cloud computing. With this system, the whole package delivery process including classification of packages, vehicle scheduling, path planning, transportation monitoring can be intellectualized as well as managed automatically, and the use of both material resources and manpower resources can be reduced accordingly.

关键词： Internet of Things Parcel Delivery System RFID GPS

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类风湿性关节炎生物标志物的研究新进展

中华检验医学杂志 2019年第9期42卷 723-726,727-730页

作者：李昊隆李永哲中国医学科学院北京协和医院检验科侵袭性真菌病机制研究与精准诊断北京市重点实验室北京100730

类风湿性关节炎(RA)是一种常见的慢性、全身性自身免疫性疾病,确切发病机制尚不明确,临床表现以侵蚀性、对称性多关节炎为主。早期诊断RA对判断疾病的严重程度,改善预后以及提高RA患者生活质量有重要意义。目前,RA患者血清中已经发现多... 详细信息

类风湿性关节炎(RA)是一种常见的慢性、全身性自身免疫性疾病,确切发病机制尚不明确,临床表现以侵蚀性、对称性多关节炎为主。早期诊断RA对判断疾病的严重程度,改善预后以及提高RA患者生活质量有重要意义。目前,RA患者血清中已经发现多种自身抗体以及蛋白质类生物标志物,文章就以往发现的RA患者血清中存在的几种自身抗体以及近年来新发现的血清标志物在RA中的诊断、预后评价等方面的研究进展进行阐述。

关键词：关节炎,类风湿自身抗体生物标记

Dynamic landscape mapping of humoral immunity to SARS-CoY-2 identifies non-structural protein antibodies associated with the survival of critical COVID-19 patients

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Signal Transduction and Targeted Therapy 2021年第9期6卷 2843-2856页

作者： linlin Cheng Xiaomei Zhang Yu Chen Dan Wang Dong Zhang Songxin Yan Hongye Wang Meng Xiao Te liang haolong li Meng Xu Xin Hou jiayu Dai Xian Wu Mingyuan li Minya Lu Dong Wu Ran Tian Jing Zhao Yan Zhang Wei Cao Jinglan Wang Xiaowei Yan Xiang Zhou Zhengyin liu Yingchun Xu Fuchu He Yongzhe li Xiaobo Yu Shuyang Zhang Department of Clinical Laboratory State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina State Key Laboratory of Proteomics Beijing Proteome Research CenterNational Center for Protein Sciences-Beijing(PHOENIX Center)Beijing Institute of LifeomicsBeijingChina

A comprehensive analysis of the humoral immune response to the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is essential in understanding COVID-19 pathogenesis and developing antibody-based diagnostics and *** this work,we performed a longitudinal analysis of antibody responses to SARS-CoV-2 proteins in 104 serum samples from 49 critical COVID-19 patients using a peptide-based SARS-CoV-2 proteome *** data show that the binding epitopes of IgM and IgG antibodies differ across SARS-CoV-2 proteins and even within the same protein.

关键词： immunity antibodies patients

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考虑摩擦时刚性直杆倾倒的运动分析

力学与实践 2021年第3期43卷 425-434页

作者：李浩隆冯维明山东大学土建与水利学院济南250061

为了探究考虑摩擦时均质刚性直杆倾倒的全过程,利用理论分析和数值计算的方法,详细分析了在不同摩擦因数下刚性直杆倾倒的三种运动过程,得到了倾倒时的动力学方程及其解答,并推导了杆触地端位移的表达式,通过数值计算的方法绘出了杆触... 详细信息

为了探究考虑摩擦时均质刚性直杆倾倒的全过程,利用理论分析和数值计算的方法,详细分析了在不同摩擦因数下刚性直杆倾倒的三种运动过程,得到了倾倒时的动力学方程及其解答,并推导了杆触地端位移的表达式,通过数值计算的方法绘出了杆触地端最终位移与摩擦因数的关系曲线,并通过实验验证了部分结论。

关键词：刚性直杆自由倾倒摩擦运动分析动力学分析