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Science China Chemistry 2022年第10期65卷 1903-1910页

作者： ruiqi wang Xian Zhang Fuqiang Huang Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Qian Xuesen Laboratory of Space Technology China Academy of Space TechnologyBeijing 100094China State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China

The salt-inclusion materials have drawn significant attention for their manifold structural chemistry and novel physical/chemical properties.Herein,two new salt-inclusion chalcohalides,[Cs_(6)Cl][Ga_(5)GeQ_(12)](Q=S,Se),have been discovered via hightemperature flux methods.The two isostructural compounds are constructed by porous[Ga_(5)GeQ_(12)]^(5−)layers with[ClCs_(6)]^(5+)octahedra filled in the holes.The[Ga_(5)GeQ_(12)]^(5−)layer is composed of the honeycomb-like(Ga/Ge)_(18)Q_(42)rings containing(Ga/Ge)_(3)Q_(9)trimer as basic unit.The band gaps of the two compounds are 3.90 and 2.89 eV,respectively.[Cs_(6)Cl][Ga_(5)GeS_(12)]exhibits interesting two-band emission properties which are related to the intermediate-band electronic structure revealed by density functional theory(DFT)calculations.Owing to the porous layered structure,[Cs_(6)Cl][Ga_(5)GeS_(12)]exhibits topological ion exchange ability towards Cd^(2+)ions with the maximum sorption capacity of 250 mg/g and high distribution coefficient(Kd)near 106 mL/g.This work further enriches the structural diversity of salt-inclusion materials and extends their potential application range to ion exchange adsorption.

关键词： heteroanionic compound layered structure two-band emission ion exchange properties

Benefit allocation of electricity-gas-heat-hydrogen integrated energy system based on Shapley value

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Clean Energy 2023年第6期7卷 1381-1390页

作者： Yujiao Liu Yan Li Yiping Rong Guoliang Li ruiqi wang Haini Zhou Zaozhuang Power Supply Company of State Grid Shandong Province Electric Power Company Zaozhuang CityShandong 277101China State Grid Shandong Integrated Energy Services Jinan CityShandong 250021China

The integrated energy system is an important development direction for achieving energy transformation in the context of the low-carbon development era,and an integrated energy system that uses renewable energy can reduce carbon emissions and improve energy utilization efficiency.The electric power network and the natural gas network are important transmission carriers in the en-ergy field,so the coupling relationship between them has been of wide concern.This paper establishes an integrated energy system considering electricity,gas,heat and hydrogen loads;takes each subject in the integrated energy system as the research object;anal-yses the economic returns of each subject under different operation modes;applies the Shapley value method for benefit allocation;and quantifies the contribution value of the subject to the alliance through different influencing factors to revise the benefit allocation value.Compared with the independent mode,the overall benefits of the integrated energy system increase in the cooperative mode and the benefits of all subjects increase.Due to the different characteristics of different subjects in terms of environmental benefits,collaborative innovation and risk sharing,the benefit allocation is reduced for new-energy subjects and increased for power-to-gas sub-jects and combined heat and power generation units after revising the benefit allocation,to improve the matching degree between the contribution level and the benefit allocation under the premise of increased profit for each subject.The cooperative mode effectively enhances the economic benefits of the system as a whole and individually,and provides a useful reference for the allocation of benefits of integrated energy systems.The analysis shows that the revised benefit distribution under the cooperative model increases by 3.86%,4.08%and 3.13%for power-to-gas subjects,combined heat and power generation units,and new-energy units,respectively,compared with the independent function model.

关键词： integrated energy system power-to-gas Shapley value benefit allocation hydrogen energy

Plasma-enabled synthesis of ordered PtFe alloy nanoparticles encapsulated with ultrathin N-doped carbon shells for efficient methanol electrooxidation

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Nano Research 2023年第2期16卷 2065-2075页

作者： Xuxu Sun Zhijian Mao ruiqi wang Xiaohu Pi Changle Chen Junbo Zhong Qi wang Kostya(Ken)Ostrikov Institute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China Rutgers Preparatory School New Jersey1345 Easton AveSomersetNJ 08873USA Institute of Intelligent Machines Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China College of Chemical Engineering Sichuan University of Science and EngineeringZigong 643000China School of Chemistry and Physics and QUT Centre for Materials Science Queensland University of Technology(QUT)BrisbaneQLD 4000Australia

Methanol oxidation reaction(MOR),the key reaction for clean energy generation in fuel cells,is kinetically sluggish and short-lasting because of insufficient catalytic activity and stability of the common Pt-based electrocatalysts.Ordered Pt alloy structures which promise to surmount these issues,are challenging and impractical to fabricate using common high-temperature annealing.To address the urgent need for simple and rapid synthesis methods for such alloys,here we report the versatile plasma-assisted thermal annealing synthesis of a robust electrocatalyst with PtFe alloys supported on N-doped carbon nanotubes(denoted as PtFe@NCNT-P).Benefiting from the reactive plasma-specific effects,the PtFe@NCNT-P electrocatalyst features ultrafine PtFe alloy nanoparticles(mean size~2.88 nm,ordered degree~87.07%)and ultrathin N-doped carbon(NC)shells(0.3–0.7 nm),leading to the excellent catalytic activity and stability toward MOR.The catalyst shows the specific and mass activities of 3.99 mA/cm^(2)and 2,148.5 mA/mg,which are 7.82 and 7.41 times higher than those for commercial Pt/C(0.51 mA/cm^(2),290 mA/mg),and 2.18 and 2.59 times higher compared to the plasma-untreated PtFe@NCNT(1.83 mA/cm2,829.5 mA/mg),respectively.The PtFe@NCNT-P further exhibits extraordinary stability during the long-term chronoamperometry test and 1,000-cycle cyclic voltammetry scanning,much better compared to PtFe@NCNT samples even after the longer thermal annealing.These findings show great potential of the plasma-enabled synthesis of high-performance carbon-supported metallic electrocatalysts for the emerging clean energy technologies.

关键词： methanol oxidation reaction highly ordered PtFe alloy nanoparticles ultrathin N-doped carbon shell N-doped carbon support plasma nanotechnology

Sulforaphane enhances Nrf2-mediated antioxidant responses of skeletal muscle induced by exhaustive exercise in HIIT mice

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Food Science and Human Wellness 2022年第5期11卷 1355-1361页

作者： Yangwenjie wang Yang Xiang ruiqi wang Xiangning Li Jianxiong wang Siwang Yu Ying Zhang School of Sport Science Beijing Sport UniversityBeijing 100084China College of Physical Education Yan’an UniversityShaanxi 716000China Faculty of Health Engineeringand SciencesUniversity of Southern QueenslandToowoomba 4350Australia State Key Laboratory of Natural and Biomimetic Drugs Department of Molecular and Cellular PharmacologyPeking University School of Pharmaceutical SciencesBeijing 100191China

Nuclear factor erythroid-derived 2-like 2(Nrf2)is the master regulator of antioxidant defenses.High-intensity interval training(HIIT)has been proposed as a time-efficient training program and has become a substantial component of modern training program In the present study,we evaluated the effects of sulforaphane(SFN),a dietary isothiocyanate derived from cruciferous vegetables and a potent Nrf2 activator,on Nrf2-mediated antioxidant defense responses of skeletal muscle induced by exhaustive exercise in HIIT mice.Male C57 BL/6 J mice were randomly allocated into control group,HIIT group,and HIIT pretreated with SFN(HIIT+SFN)group.On the third day after completion of a 6-weeks HIIT protocol,an exhaustive treadmill test was conducted in all mice.Mice were intraperitoneally injected with SFN(HIIT+SFN group)or PBS(HIIT and control mice)4 times in 3 days prior to the exhaustive treadmill test.The results indicated that the 6-weeks HIIT protocol did not increase the antioxidative capacity of skeletal muscle during exhaustive exercise.Importantly,SFN treatment improved anti oxidative capacity of skeletal muscle in response to the acute exhaustive exercise by increasing mRNA and nucleoprotein expression of Nrf2 and these genes involved in antioxidant generation and decreasing blood creatine kinase(CK)and 4-hydroxy-2-nonenal(4-HNE)-modified protein levels in the HIIT mice.

关键词： Sulforaphane Nrf2(nuclear factor erythroid-derived 2-like 2) Skeletal muscle Antioxidant HIIT(high-intensity interval training) Mice

Hydroxyapatite nanoparticles drive the potency of Toll-like receptor 9 agonist for amplified innate and adaptive immune response

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Nano Research 2022年第10期15卷 9286-9297页

作者： Qin Zeng ruiqi wang Yuchen Hua Hongfeng Wu Xuening Chen You-cai Xiao Qiang Ao Xiangdong Zhu Xingdong Zhang National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610064China NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterials&Institute of Regulatory Science for Medical Devices&NMPA Research Base of Regulatory Science for Medical Devices Sichuan UniversityChengdu 610064China College of Biomedical Engineering Sichuan UniversityChengdu 610064China Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province Sichuan UniversityChengdu 610041China

The potency of Toll-like receptor 9(TLR9)agonist to drive innate immune response was limited due to immune suppression or tolerance during TLR9 signaling activation in immune cells.Herein we addressed this problem by introducing hydroxyapatite nanoparticles(HANPs)to CpG ODN(CpG),a TLR9 agonist.The study revealed that HANPs concentration and durationdependently reprogramed the immune response by enhancing the secretion of immunostimulatory cytokines(tumor necrosis factorα(TNFα)or IL-6)while reducing the production of immunosuppressive cytokine(IL-10)in macrophages in response to CpG.Next,the enhanced immune response benefited from increased intracellular Ca2+in macrophage by the addition of HANPs.Further,we found exposure to HANPs impacted the mitochondrial function of macrophages in support of the synthesis of adenosine triphosphate(ATP),the production of nicotinamide adenine dinucleotide(NAD),and reactive oxygen species(ROS)in the presence or absence of CpG.In vaccinated mice model,only one vaccination with a mixture of CpG,HANPs,and OVA,a model antigen,allowed the development of a long-lasting balanced humoral immunity in mice without any histopathological change in the local injection site.Therefore,this study revealed that HANPs could modulate the intracellular calcium level,mitochondrial function,and immune response in immune cells,and suggested a potential combination adjuvant of HANPs and TLR9 agonist for vaccine development.

关键词： hydroxyapatite nanoparticles Toll-like receptor 9 intracellular calcium mitochondrial function adaptive immune response

[CsCl][GaGeQ](Q = S, Se): two novel porous layered chalcohalides exhibiting two-band emission and ion exchange properties

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Science China Chemistry 2022年

作者： ruiqi wang Xian Zhang Fuqiang Huang Qian Xuesen Laboratory of Space Technology China Academy of Space Technology Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering Peking University State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences

The salt-inclusion materials have drawn significant attention for their manifold structural chemistry and novel physical/chemical properties. Herein, two new salt-inclusion chalcohalides, [CsCl][GaGeQ](Q = S, Se), have been discovered via hightemperature flux methods. The two isostructural compounds are constructed by porous [GaGeQ]layers with [ClCs]octahedra filled in the holes. The [GaGeQ]layer is composed of the honeycomb-like(Ga/Ge)Qrings containing(Ga/Ge)Qtrimer as basic unit. The band gaps of the two compounds are 3.90 and 2.89 eV, respectively. [CsCl][GaGeS] exhibits interesting two-band emission properties which are related to the intermediate-band electronic structure revealed by density functional theory(DFT) calculations. Owing to the porous layered structure, [CsCl][GaGeS] exhibits topological ion exchange ability towards Cdions with the maximum sorption capacity of 250 mg/g and high distribution coefficient(Kd) near 10~6 mL/g. This work further enriches the structural diversity of salt-inclusion materials and extends their potential application range to ion exchange adsorption.

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Characteristics of cow’s milk allergy and sensitization in Chinese patients

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Chinese Medical Journal 2022年第22期135卷 2738-2740页

作者： Sainan Bian ruiqi wang Tao Xu Kai Guan Liping Wen Lianglu wang- Jjanqing Gu Jinlyu Sun Rui Tang Yuxiang Zhi Hong Li Jia Yin Department of Allergy Peking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100730China State Key Laboratory of Complex Severe and Rare Diseases Beijing 100730China National Clinical Research Center for Dermatologic and Immunologic Diseases(NCRC-DID) Beijing 100730China Department of Epidemiology and Biostatistics Institute of Basic Medical SciencesChinese Academy of Medical Sciences and School of Basic MedicinePeking Union Medical CollegeBeijing 100005China

Globally,the prevalence of food allergy in children is estimated to be approximately 4%to 10%.[1]Food allergy usually begins early in the allergic march,and cow's milk allergy(CMA)is one of the most common food allergens in infants and children.In Europe,the overall incidence of challenge-proven CMA is 0.54%,and in the United States,the overall prevalence is 0.4%and pediatric prevalence is 1.9%.[2–4]In China,the prevalence of oral food challenge(OFC)-confirmed CMA is 0.83%to 3.5%in various cities.[5]Double-blind placebo-controlled food challenge is not applied widely in clinical practice because of its complex process and the risk of anaphylaxis for patients that receive the test.Allergen-specific IgE(sIgE)is usually used as a critical assessment method for food allergy.

关键词： allergy patients prevalence

Diagnostic accuracy and safety of Dermatophagoides pteronyssinus extracts used for skin prick test

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Chinese Medical Journal 2022年第21期135卷 2563-2569页

作者： Rui Tang Xiaohong Lyu Yuxi Liu ruiqi wang Lianglu wang Hong Li Jinlyu Sun Yuxiang Zhi Jianqing Gu Kai Guan Liping Wen Zixi wang Lisha Li Le Cui Yingyang Xu Junxiong Zhou Tao Xu Jia Yin Department of Allergy Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment of Allergic DiseasesNational Clinical Research Center for Dermatologic and Immunologic DiseasesPeking Union Medical College HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing 100730China Eight-Year Program of Clinical Medicine Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing 100730China Department of Statistics Institute of Basic Medical SciencesChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing 100730China

Background:Dermatophagoides pteronyssinus is a common allergen causing allergic diseases in China.The aim of this study was to evaluate the efficacy and safety of D.pteronyssinus extracts produced by Peking Union Medical College Hospital(PUMCH)for the skin prick test(SPT)in the diagnosis of D.pteronyssinus allergy.Methods:A total of 910 subjects with allergic diseases were prescribed D.pteronyssinus SPT and specific sIgE(sIgE)test among the Outpatients of Department of Allergy,PUMCH from August 10,2015 to August 30,2017.Receiver operating characteristic curve(ROC)analysis was performed according to the results of D.pteronyssinus-sIgE detection.The accuracy of D.pteronyssinus extracts used for SPT in the diagnosis of D.pteronyssinus allergy was evaluated under different cutoff values.Adverse events after SPT were recorded to evaluate safety.Results:There were 796 and 618 subjects in the full analysis set(FAS)and the per protocol set(PPS),respectively.The areas under the curve of FAS and PPS were 0.871 and 0.873,respectively.According to the ROC of PPS,the optimal and 95%specificity diagnostic cutoff values of D.pteronyssinus SPT mean wheal diameter were 3.25 and 3.75 mm,respectively.No adverse events occurred.Conclusion:The extracts of D.pteronyssinus for SPT were simple,highly accurate,and safe and should be considered for recommendation in the clinical diagnosis of D.pteronyssinus allergy.

关键词： Dermatophagoides pteronyssinus Allergen extract allergy Skin prick test Immunoglobulin E Allergy

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石墨烯基吸波复合材料研究进展

材料研究学报 2024年第1期38卷 1-13页

作者：徐东卫王瑞琪陈平大连理工大学化工学院精细化工国家重点实验室大连116024 郑州航空工业管理学院材料学院郑州450046

电子信息技术的迅速发展,致使电磁污染及干扰问题愈加严重,研制具有“宽、薄、轻、强”综合优异性能的吸波材料显得尤为重要。石墨烯材料因其具有轻质、高导电、大比表面积、强介电损耗等优点,但其阻抗匹配性能较差,损耗机制单一。对其... 详细信息

电子信息技术的迅速发展,致使电磁污染及干扰问题愈加严重,研制具有“宽、薄、轻、强”综合优异性能的吸波材料显得尤为重要。石墨烯材料因其具有轻质、高导电、大比表面积、强介电损耗等优点,但其阻抗匹配性能较差,损耗机制单一。对其进行异质元素掺杂或进行形貌结构设计,可有效改善其阻抗失配问题。本文基于电磁波吸收理论,阐述了不同维度石墨烯基吸波复合材料的研究进展,详细讨论了不同石墨烯基吸波复合材料的性能和吸波机理。还讨论了石墨烯吸波材料领域目前研究工作中存在的一些不足,最后针对石墨烯基吸波材料未来的研究方向和发展前景进行了展望。

关键词：评述石墨烯微波吸收结构调控多功能吸波材料阻抗匹配

Group-based joint signaling and data resource allocation in MTC-underlaid cellular networks

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Science China(Information Sciences) 2017年第10期60卷 55-67页

作者： Xuefei ZHANG Yue wang ruiqi wang Yanzhao HOU Da wang School of Information and Communication Engineering Beijing University of Posts and Telecommunications China Telecom Corporation Limited Technology Innovation Center

Machine-type communications(MTC) are gaining significant research attention as one of the most promising technologies for the fifth generation(5G) mobile networks. A critical issue handled by MTC is support for massive numbers of connections, which is a growing problem that will become increasingly challenging as MTC share spectrum resources with cellular communication. Here, not only the number of connections but also the data rate requirements of cellular users(CUEs) need to be considered. Given these issues, in this paper, we formulate a group-based joint signaling and data resource optimization model constrained by network resource and data rate requirements in order to maximize the number of connections. We also note that this problem is nonconvex and that obtaining an optimal solution is computationally complex for MTC with massive numbers of users(UEs). Therefore, we decompose the problem into group-based data aggregation and resource allocation subproblems. To solve these two subproblems, we develop an adaptive group head selection algorithm and a joint signaling and data resource allocation algorithm that satisfy both the data rate requirement and resource constraints, respectively. Our simulation results show that our proposed algorithms significantly improve the number of connections when compared with other classic methods. Furthermore, our results reveal that the limiting factor on the number of connections changes with the ratio of the number of MTC UEs to that of CUEs and the ratio of data requirement of MTC UEs to that of CUEs. Finally, we note that our proposed group-based resource allocation algorithm can effectively improve the number of connections, especially when more MTC UEs and a small amount of MTC data are present.

关键词： data aggregation matrix analysis machine-type communications signaling and data resource allocation