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Enhanced reversible hydrogen storage properties of wrinkled graphene microflowers confined LiBH_(4) system with high volumetric hydrogen storage capacity

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Materials Reports(Energy) 2024年第1期4卷 79-88页

作者： Zhenglong Li Kaicheng Xian Hao Chen Mingxia gao Shanqing Qu Meihong Wu Yaxiong Yang Wenping sun Chao gao Yongfeng Liu Xin Zhang Hongge Pan Institute of Science and Technology for New Energy Xi'an Technological UniversityXi'an710021PR China State Key Laboratory of Silicon and Advanced Semiconductor Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang ProvinceSchool of Materials Science and EngineeringZhejiang UniversityHangzhou310027PR China Department of Polymer Science and Engineering MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationZhejiang UniversityHangzhou310027PR China

LiBH_(4)with high hydrogen storage density,is regarded as one of the most promising hydrogen storage ***,it suffers from high dehydrogenation temperature and poor reversibility for practical *** is effective in achieving low dehydrogenation temperature and favorable ***,graphene can serve as supporting materials for LiBH_(4)catalysts and also destabilize LiBH_(4)via interfacial ***,graphene has never been used alone as a frame material for nanoconfining LiBH_(4).In this study,graphene microflowers with large pore volumes were prepared and used as nanoconfinement framework material for LiBH_(4),and the nanoconfinement effect of graphene was *** loading 70 wt%of LiBH_(4) and mechanically compressed at 350 MPa,8.0 wt% of H2 can be released within 100 min at 320C,corresponding to the highest volumetric hydrogen storage density of 94.9 g H2 L^(-1)ever *** to the nanoconfinement of graphene,the rate-limiting step of dehydrogenation of nanoconfined LiBH_(4) was changed and its apparent activation energy of the dehydrogenation(107.3 kJ mol^(-1))was 42%lower than that of pure LiBH_(4).Moreover,the formation of the intermediate Li_(2)B_(12)H_(12) was effectively inhibited,and the stable nanoconfined structure enhanced the reversibility of LiBH_(4).This work widens the understanding of graphene's nanoconfinement effect and provides new insights for developing high-density hydrogen storage materials.

关键词： Hydrogen storage LiBH_(4) Nanoconfinement Graphene High capacity

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Alcoholic Liver Disease in China:A Disease Influenced by Complex Social Factors That Should Not Be Neglected

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Journal of Clinical and Translational Hepatology 2024年第7期12卷 677-684页

作者： Xiaofeng Feng Nafei Huang Yuqin Wu Fei gao Xiaomei Chen Chenyi Zhang Bing Zhang Tao sun The Second Clinical Medical College of Zhejiang Chinese Medical University HangzhouZhejiangChina The Second Affiliated Hospital of Zhejiang Chinese Medical University HangzhouZhejiangChina Hangzhou First People’s Hospital HangzhouZhejiangChina

Alcoholic liver disease(ALD)encompasses liver damage caused by chronic,excessive alcohol *** manifests initially as marked hepatocellular steatosis and can progress to steatohepatitis,liver fibrosis,and *** China’s rapid economic growth,coupled with a complex social background and the influence of a deleterious wine culture,the number of patients with ALD in China has increased significantly;the disease has become a social and health problem that cannot be *** this review,we briefly described the social factors affecting ALD in China and elaborated on differences between alcoholic and other liver diseases in terms of complications(e.g.,cirrhosis,upper gastrointestinal bleeding,hepatic encephalopathy,hepatocellular carcinoma,addiction,and other extrahepatic diseases).We also emphasized that ALD was more dangerous and difficult to treat than other liver diseases due to its complications,and that precise and effective treatment measures were *** addition,we considered new ideas and treatment methods that may be generated in the future.

关键词： Alcoholic liver disease Wine culture Complication Epidemiology Treatment strategies Comparison

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Copper naphthalocyanine-based hole-transport material for highperformance and thermally stable perovskite solar cells

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Science China Chemistry 2024年第8期67卷 2701-2709页

作者： Yue Qiang Huaiman Cao Yuzhen Pan Yi Chi Liangyu Zhao Yingguo Yang Hai-Bei Li Yan gao Licheng sun Ze Yu State Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsDalian University of Technology(DUT).Dalian 116024China School of Chemistry Dalian University of Technology(DUT)Dalian 116024China School of Microelectronics Fudan UniversityShanghai 200433China Shanghai Synchrotron Radiation Facility(SSRF) Zhangjiang LabShanghai Advanced Research InstituteShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China School of Ocean Shandong UniversityWeihai 264209China Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry School of ScienceWestlake UniversityHangzhou 310024China Department of Chemistry School of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology Stockholm 10044Sweden

Metal phthalocyanines(MPcs) have gained considerable research attention as hole-transport materials(HTMs) in perovskite solar cells(PSCs) because of their superb stability. However, the photovoltaic performance of MPc-based HTMs in PSCs is still lagging behind their small molecule and polymeric counterparts, largely due to their relatively low hole mobility. Here, we report for the first time the application of a copper naphthalocyanine derivative(namely t Bu-Cu Nc) as a hole-transport material(HTM)in perovskite solar cells(PSCs), and systematically study its optoelectronic and photovoltaic property compared with its Cu Pc analog(t Bu-Cu Pc). Combined experiments disclose that the extension of π-conjugation from Pc to Nc core leads to not only an enhanced hole-carrier mobility associated with a stronger intermolecular interaction, but also an elevated glass transition temperature(T_g) of 252 °C. The resultant PSCs employing t Bu-Cu Nc deliver an excellent power conversion efficiency of 24.03%, which is the record efficiency reported for metal complex-based HTMs in PSCs. More importantly, the encapsulated t Bu-Cu Nc-based devices also show dramatically improved thermal stability than the devices using the well-known SpiroOMe TAD, with a T_(80)lifetime for more than 1,000 h under damp-heat stress. This study unfolds a new avenue for developing efficient and stable HTMs in PSCs.

关键词： hole-transport materials perovskite solar cells copper naphthalocyanine extendedπ-conjugation thermal stability

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From macroautophagy to mitophagy:Unveiling the hidden role of mitophagy in gastrointestinal disorders

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World Journal of Gastroenterology 2024年第23期30卷 2934-2946页

作者： Duo-Lun gao Meng-Ran Lin Nan Ge Jin-Tao Guo Fan Yang Si-Yu sun Department of Gastroenterology Engineering Research Center of Ministry of Education for Minimally Invasive Gastrointestinal Endoscopic TechniquesShengjing Hospital of China Medical UniversityShenyang 110004Liaoning ProvinceChina

In this editorial,we comment on an article titled“Morphological and biochemical characteristics associated with autophagy in gastrointestinal diseases”,which was published in a recent issue of the World Journal of *** focused on the statement that“autophagy is closely related to the digestion,secretion,and regeneration of gastrointestinal cells”.With advancing research,autophagy,and particularly the pivotal role of the macroautophagy in maintaining cellular equilibrium and stress response in the gastrointestinal system,has garnered extensive ***,the significance of mitophagy,a unique selective autophagy pathway with ubiquitin-dependent and independent variants,should not be *** recent decades,mitophagy has been shown to be closely related to the occurrence and development of gastrointestinal diseases,especially inflammatory bowel disease,gastric cancer,and colorectal *** interplay between mitophagy and mitochondrial quality control is crucial for elucidating disease mechanisms,as well as for the development of novel treatment *** the pathogenesis behind gastrointestinal diseases and providing individualized and efficient treatment for patients are subjects we have been *** article reviews the potential mechanism of mitophagy in gastrointestinal diseases with the hope of providing new ideas for diagnosis and treatment.

关键词： Mitophagy Gastrointestinal diseases Parkin Autophagic receptor Colorectal cancer Gastric cancer Inflammatory bowel disease

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Luminescent terphen[3]arene sulfate-activated FRET assemblies for cell imaging

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Chinese Chemical Letters 2024年第9期35卷 183-186页

作者： zhixue Liu Haiqi Chen Lijuan Guo Xinyao sun zhi-Yuan Zhang Junyi Chen Ming Dong Chunju Li Tianjin Key Laboratory of Structure and Performance for Functional Molecules College of ChemistryTianjin Normal UniversityTianjin 300387China

Multicharged supramolecular assemblies based on luminescent macrocycle play an important role in extending their optical properties and ***,we reported macrocyclic supramolecular assemblies based on luminescent terphen[3]arene sulfate(TP[3]AS)and tetraphenylethylene pyridinium(TPE-4Py)through electrostatic interactions,host-guest encapsulation andπ-πstacking interactions.F?rster resonance energy transfer(FRET)process from TP[3]AS to TPE-4Py was achieved with the energy transfer efficiency of 99.9%,accompanied by TPE-4Py fluorescence emission bathochromic shifted of 15 nm and enhanced by 1.68 times in PBS *** contrast,other non-luminescent sulfato-β-cyclodextrin and sulfobutylether-β-cyclodextrin only can enhance the fluorescence intensity of TPE-4Py without bathochromic *** to the strong fluorescence and good stability of TPE-4Py@TP[3]AS,it can be used for optical imaging in living cells,which provided an effective approach for the construction of assembling-confined luminescent biomaterials.

关键词： Luminescent macrocycle Terphenarene sulfate Multicharged assembly Multivalent interactions Forster resonance energy transfer Cell imaging

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A viscoelastic nonlinear energy sink with an electromagnetic energy harvester:Narrow-band random response

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Chinese Physics B 2024年第7期33卷 147-156页

作者：廖志晶孙亚辉刘洋 School of Mathematics and Statistics Guangdong University of TechnologyGuangzhou 510520China Exeter Small-Scale Robotics Laboratory Engineering DepartmentUniversity of ExeterNorth Park RoadExeter EX44QFUK

Nonlinear energy sink is a passive energy absorption device that surpasses linear dampers, and has gained significant attention in various fields of vibration suppression. This is owing to its capacity to offer high vibration attenuation and robustness across a wide frequency spectrum. Energy harvester is a device employed to convert kinetic energy into usable electric energy. In this paper, we propose an electromagnetic energy harvester enhanced viscoelastic nonlinear energy sink(VNES) to achieve passive vibration suppression and energy harvesting simultaneously. A critical departure from prior studies is the investigation of the stochastic P-bifurcation of the electromechanically coupled VNES system under narrowband random excitation. Initially, approximate analytical solutions are derived using a combination of a multiple-scale method and a perturbation approach. The substantial agreement between theoretical analysis solutions and numerical solutions obtained from Monte Carlo simulation underscores the method's high degree of validity. Furthermore, the effects of system parameters on system responses are carefully examined. Additionally, we demonstrate that stochastic P-bifurcation can be induced by system parameters, which is further verified by the steady-state density functions of displacement. Lastly,we analyze the impacts of various parameters on the mean square current and the mean output power, which are crucial for selecting suitable parameters to enhance the energy harvesting performance.

关键词： nonlinear energy sink fractional-order damping multiple-scale method energy harvester

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Spatial-Temporal Analysis of Drinking Water Type of Endemic Fluorosis—China,2009–2022

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China CDC weekly 2024年第2期6卷 25-29页

作者： Lijun Zhao Zhe Li Mang Li Hongna sun Wei Wei Lin gao Qiaoshi Zhao Yang Liu Xiaohong Ji Cheng Li Jian Wang Yanhui gao Junrui Pei Center for Endemic Disease Control Chinese Center for Disease Control and PreventionHarbin Medical UniversityHarbin CityHeilongjiang ProvinceChina Key Lab of Etiology and Epidemiology Education Bureau of Heilongjiang Province(23618504)Ministry of Health of PRHarbin Medical UniversityHarbin CityHeilongjiang ProvinceChina

What is already known about this topic?Endemic fluorosis,caused by high fluoride levels in drinking water,has been a significant health issue in rural areas of China for many *** is added by this report?There has been a notable decline in the detection rate of dental fluorosis in children aged 8–12 years in drinking water fluorosis areas across the country from 2009 to *** 14 provincial-level administrative divisions are classified as low-probability clusters,Tianjin remains classified as a high-probability *** are the implications for public health practice?The current policy for preventing and controlling endemic fluorosis in China needs *** than focusing solely on regions with high incidence,there should be a shift towards monitoring and early warning of fluoride ***,local containment measures should be intensified.

关键词： intensified Spatial fluoride

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Current Status and Prospects of China’s Natural Gas Industry

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China Oil & Gas 2024年第2期31卷 52-58页

作者： gao Jie sun Chunliang PetroChina Planning and Engineering Institute

In 2023,China’s natural gas sector experienced robust growth in both supply and demand dynamics,as consumption regained an upward trend,reaching 394.53 billion m3,reflecting a 7.6%year-on-year *** gas production and reserves persistently progressed,hitting a production volume of 228.84 billion m3 and achieving a seven-year consecutive increment exceeding 10 billion m^(3).After an initial sharp decline,imported natural gas rebounded to record growth;the combined import volume of pipeline gas and LNG climbed to 163.92 billion m^(3),a notable 11.3%rise compared to the previous *** China’s policies for stable economic growth are further entrenched in 2024,the macroeconomic recovery is anticipated to *** by the dual-carbon strategy and the transformative policies targeting high-energy-consuming industries,the natural gas market is expected to sustain its rapid expansion,with estimated growth in demand ranging between 5.8%and 7.1%.

关键词： gained exceeding consuming

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PIM1-HDAC2 axis modulates intestinal homeostasis through epigenetic modification

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Acta Pharmaceutica Sinica B 2024年第7期14卷 3049-3067页

作者： Jianming Yang Yawen Xiao Ningning Zhao Geng Pei Yan sun Xinyu sun Kaiyuan Yu Chunhui Miao Ran Liu Junqiang Lv Hongyu Chu Lu Zhou Bangmao Wang zhi Yao Quan Wang Key Laboratory of Immune Microenvironment and Disease(Ministry of Education) Tianjin Institute of ImmunologyState Key Laboratory of Experimental Hematologythe Province and Ministry Co-sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of ImmunologySchool of Basic Medical SciencesTianjin Institute of Urologythe Second Hospital of Tianjin Medical UniversityTianjin Key Laboratory of Cellular and Molecular ImmunologyTianjin Medical UniversityTianjin 300070China Department of Pathology Tianjin Medical University Cancer Institute and Hospital/National Clinical Research Center of Cancer/Key Laboratory of Cancer Prevention and TherapyTianjin/Tianjin’s Clinical Research Center of CancerTianjin 30060China Department of Gastroenterology and Hepatology Tianjin Medical University General HospitalTianjin Medical UniversityTianjin 300070China

The mucosal barrier is crucial for intestinal homeostasis,and goblet cells are essential for maintaining the mucosal barrier *** proviral integration site for Moloney murine leukemia virus-1(PIM1)kinase regulates multiple cellular functions,but its role in intestinal homeostasis during colitis is ***,we demonstrate that PIM1 is prominently elevated in the colonic epithelia of both ulcerative colitis patients and murine models,in the presence of intestinal *** PIM1 leads to decreased goblet cells,thus impairing resistance to colitis and colitis-associated colorectal cancer(CAC)in ***,PIM1 modulates goblet cell differentiation through the Wnt and Notch signaling ***,PIM1 interacts with histone deacetylase 2(HDAC2)and downregulates its level via phosphorylation,thereby altering the epigenetic profiles of Wnt signaling pathway ***,these findings investigate the unknown function of the PIM1-HDAC2 axis in goblet cell differentiation and ulcerative colitis/CAC pathogenesis,which points to the potential for PIM1-targeted therapies of ulcerative colitis and CAC.

关键词： PIM1 HDAC2 Goblet cell Gut microbiota Intestinal homeostasis Epigenetic modification Ulcerative colitis CAC

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Tumor-targeted self-assembled micelles reducing PD-L1 expression combined with ICIs to enhance chemo-immunotherapy of TNBC

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Chinese Chemical Letters 2024年第2期35卷 305-310页

作者： Hongda Zhu Kai Ma Rui Ruan Chaobo Yang Aqin Yan Jing Li Qi Yu Hongmei sun Mingxing Liu Hongmei Zheng Jing gao Xiaofang Guan Zhu Dai Yao sun Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province) Key Laboratory of Fermentation Engineering (Ministry of Education)National “111” Center for Cellular Regulation and Molecular PharmaceuticsSchool of Food and Biological EngineeringHubei University of TechnologyWuhan 430068China Hubei Cancer Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430079China National Key Laboratory of Green Pesticide College of ChemistryCentral China Normal UniversityWuhan 430079China Key Laboratory of Medical Optics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of SciencesSuzhou 215163China Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of EducationQingdao University of Science and TechnologyQingdao 266000China

Immune checkpoint inhibitors(ICIs)therapy targeting programmed cell death ligand 1(PD-L1)and programmed death protein 1(PD-1)had exhibited significant clinical benefits for cancer treatment such as triple negative breast cancer(TNBC).However,the relatively low anti-tumor immune response rate and ICIs drug resistance highlight the necessity of developing ICIs combination therapy strategies to improve the anti-tumor effect of ***,the immunomodulator epigallocatechin gallate palmitate(PEGCG)and the immunoadjuvant metformin(MET)self-assembled into tumor-targeted micelles via hydrogen bond and electrostatic interaction,which encapsulated the therapeutic agents doxorubicin(DOX)-loaded PEGCG-MET micelles(PMD)and combined with ICIs(anti-PD-1 antibody)as therapeutic strategy to reduce the endogenous expression of PD-L1 and improve the tumor immunosuppressive *** results presented that PMD integrated chemotherapy and immunotherapy to enhance antitumor efficacy in vitro and in vivo,compared with DOX or anti-PD-1 antibody for the therapy of *** micelles might be a potential candidate,which could remedy the shortcomings of antibody-based ICIs and provide synergistic effect to enhance the antitumor effects of ICIs in tumor therapy.

关键词： Immunotherapy Tumor-targeted Self-assembled micelles Metformin Reducing PD-L1 expression TNBC

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