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Single-atom Pd anchored in the porphyrin-center of ultrathin 2D-MOFs as the active center to enhance photocatalytic hydrogen-evolution and NO-removal

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Chinese Chemical Letters 2024年第9期35卷 364-368页

作者： Xingyan Liu Chaogang jia Guangmei jiang Chenghua Zhang Mingzuo Chen Xiaofei Zhao Xiaocheng Zhang Min Fu Siqi Li jie Wu Yiming jia Youzhou He Chongqing Key Laboratory of Catalysis and New Environmental Materials College of Environment and ResourcesChongqing Technology and Business UniversityChongqing 400067China School of Pharmacy North Sichuan Medical CollegeNanchong 637100China Carbon Neutrality Technology Application Research Center College of River and Ocean EngineeringChongqing Jiaotong UniversityChongqing 400074China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China National Local Joint Engineering Research Center for Road Engineering and Disaster Prevention and Reduction Technology in Mountainous Areas China Merchants Chongqing Communications Technology Research and Design Institute Co.Ltd.Chongqing 400067China Chongqing Culture Relics and Archaeology Research Institute Chongqing 400013China

Single-atom catalysts were widely used to treat atmospheric pollution and alleviate energy crises through ***,how to prevent the aggregation of single atoms during the preparation and catalytic processes remained a great ***,a novel ultrathin two-dimensional porphyrin-based single-atom photocatalyst Ti-MOF(abbreviated as TMPd)obtained through a simple hydrothermal synthesis strategy was used for photocatalytic hydrogen evolution and NO removal,in which the singleatom Pd tightly anchored in the center of porphyrin to ensure single-atom Pd stable *** with most reported MOFs-based photocatalysts,the TMPd showed an excellent hydrogen evolution rate(1.32 mmol g^(-1)h^(-1))and the NO removal efficiency(62%)under visible light *** high-angle annular dark-field scanning transmission electron microscope(HAADF-STEM)and synchrotron-radiation-based X-ray absorption fine-structure spectroscopy(XAFS)proved that pd in TMPd existed in an isolated state,and the atomic force microscope(AFM)proved the ultrathin morphology of *** calculations had demonstrated that single-atom Pd could serve as the active center and more effectively achieve electron transfer,indicating that single-atom Pd played a vital role in photocatalytic hydrogen *** addition,a possible photocatalytic pathway of NO removal was proposed based on ESR and in-situ infrared spectra,in which the catalysts anchored with single-atom Pd could produce more active substances and more effectively oxidize NO to NO_(2)^(-)or NO_(3)^(-).The results suggested that coordinating single-atom metal species as the active site in the center of porphyrin could be a feasible strategy to obtain various ultrathin porphyrin-based single-atom photocatalysts to acquire excellent photocatalytic performance further.

关键词： Porphyrin-based MOFs Single-atom Pd Ultrathin 2D nanosheets Hydrogen evolution NO removal

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Diversification of interfaces triggered hydrogen storage properties enhancement

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Rare Metals 2024年第5期43卷 2324-2330页

作者： jia-Xin Zhang Xin Ding Rui-Run Chen Xiang-Feng Ma Wen-Chao Cao Yong Zhang Jing-jie Guo National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of TechnologyHarbin 150001China

Dual effects of grain refinement and alloying are achieved and the mechanism of"diverse interfaces reinforcement"for hydrogen storage Mg alloys is first *** interface reinforced Mg-Y-Zn-Al alloy for hydrogen storage is *** work figures out that the adventurous Al-rich phase exhibits an ordered face-centered cubic(FCC)structure with composition of(31±2)at%Y-(28±1)at%Zn-(41±3)at%Al,i.e.,Y_(3)Zn_(3)Al_(4),and an incoherent interface between Y3Zn3Al4phase and Mg substrate is observed.

关键词： hydrogen alloying alloy

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The dynamic characteristics of saturated remolded loess under cyclic load

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Earthquake Research Advances 2024年第2期4卷 27-35页

作者： Yuting Fu Yanbo Cao jiaxu Kong jia Zheng jiaqi Mu jie Wang jianqi Zhuang College of Geological Engineering and Geomatics Key Laboratory of Western China Mineral Resources and Geological EngineeringChang’an UniversityXi’an710054China

Due to the joint development characteristic and macropore structure of loess,it is easy to cause structure collapse under earthquake or artificial *** study on the loess disaster effect and its mechanism under earthquake action is insufficient due to its ***,to study the deformation and mechanical properties more accurately,the dynamic characteristics of saturated remolded loess under cyclic dynamic load were tested using a GDS dynamic triaxial instrument in this *** test results show that strain and pore water pressure increase gradually at different rates with the development of vibration,and there is an obvious inflection point in the time-history curve of *** the number of vibrations(N)exceeds this point,the strain increases rapidly,and pore water pressure tends to be *** the action of large amplitude and low-frequency dynamic load,the strain and pore water pressure increase rapidly with fewer vibrations and the deviator stress(q)decreases rapidly,while the sample achieves damage faster with the increase of *** the application of a dynamic load,the effective stress(p)gradually decreases and its rate of change slows ***,when the saturated remolded loess is subjected to a constant-amplitude dynamic load,the combination of large amplitude and low frequency leads to the failure of the sample in the shortest time.

关键词： Loess Pore water pressure Strain Frequency Amplitude Quake(vibration)

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Prognostic factors for lacrimal gland adenoid cystic carcinoma:a retrospective study in Chinese patients

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International Journal of Ophthalmology(English edition) 2024年第8期17卷 1423-1430页

作者： Lu-Di Yang Shi-Chong jia jie Yang Xin Song Ye-Fei Wang Xian-Qun Fan Department of Ophthalmology Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai 200011China Tianjin Eye Hospital Tianjin Key Lab of Ophthalmology and Visual ScienceNankai University Affiliated Eye HospitalTianjin Eye InstituteTianjin 300074China

AIM:To explore the prognostic factors for lacrimal gland adenoid cystic carcinoma(LGACC)in Chinese ***:Clinical and histopathological data were reviewed in patients with pathologically confirmed *** recurrence,metastasis,and disease-specific death were the main outcome *** and multivariate analyses were performed by the Kaplan-Meier method and a Cox proportional hazard ***:This retrospective cohort study included 45 patients with pathologically confirmed LGACC between January 2008 and June ***(T)classification(P=0.005),nodal metastasis(N)classification(P=0.018)and positive margin(P=0.008)were independent risk factors of recurrence;T(P=0.013)and N(P=0.003)classification and the basaloid tumor type(P=0.032)were independent risk factors for metastasis;T classification(P<0.001)was an independent factor of death of *** the further analysis,the durations from first surgery to radiotherapy is correlated with metastatic risk in LGACC patients with basaloid component(P=0.022).CONCLUSION:Histological subtype should be emphasized when evaluating prognosis and guiding *** radiotherapy may reduce the risk of metastasis in patients with basaloid component.

关键词： lacrimal gland adenoid cystic carcinoma risk factors prognostic analysis histological subtypes

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EuSHT Acts as a Hub Gene Involved in the Biosynthesis of 6-Hydroxyluteolin and Quercetin Induced by Salt Stress in Eucommia ulmoides

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2095-2113页

作者： Fuxin Li Enyan Chen Xinxin Chen Jingyu jia Hemin Wang jie Zhang jianrui Sun Xin Li College of Food and Bioengineering Henan University of Science and TechnologyLuoyang471023China Henan Engineering Research Center of Food Microbiology Luoyang471023China National Demonstration Center for Experimental Food Processing and Safety Education Luoyang471000China

Salt stress inhibits plant growth and affects the biosynthesis of its secondary *** are natural compounds that possess many important biological activities,playing a significant role in the medicinal activity of Eucommia ulmoides(***).To investigate the mechanism by which salt stress affects the biosynthesis of flavonoids in ***,a comprehensive analysis of metabolomics and transcriptomics was *** results indicated that salt stress led to the wilting and darkening of *** leaves,accompanied by a decrease in chlorophyll levels,and significantly induced malondialdehyde(MDA)and relative electrical *** salt stress,most metabolites in the flavonoid biosynthesis pathway of *** were upregulated,indicating that flavonoid biosynthesis is likely the main induced pathway under salt *** them,secondary metabolites such as 6-Hydroxyluteolin and Quercetin are likely key metabolites induced by salt *** correlation analysis of transcriptomics and metabolomics revealed that EuSHT is a hub gene induced by salt stress,promoting the production of flavonoids such as *** co-expression network showed a strong positive correlation between EuSHT and the biosynthesis of 6-Hydroxyluteolin and Quercetin,while it exhibited a negative correlation with Catechin *** branches leading to Luteolin and Dihydroquercetin are likely the main pathways for flavonoid compound biosynthesis in the plant stress response during salt *** results of this study provided a preliminary mechanism of secondary metabolites such as flavonoids in the medicinal plant *** induced by salt stress and provided new theoretical support for discussing the mechanism of plant stress *** also provided useful information for subsequent exploration of resistance genes in ***.

关键词： Eucommia ulmoides ﬂavonoid salt stress transcriptomics widely targeted metabolomics

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Rare earth element-modified MOF materials:synthesis and photocatalytic applications in environmental remediation

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Rare Metals 2024年第4期43卷 1390-1406页

作者： Shu-Kun Le Qi-jie Jin jia-Ao Han Hua-Cong Zhou Quan-Sheng Liu Fu Yang jie Miao Pei-Pei Liu Cheng-Zhang Zhu Hai-Tao Xu Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources Chemical Engineering CollegeInner Mongolia University of TechnologyHohhot010050China School of Environmental Science and Engineering Nanjing Tech UniversityNanjing210009China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang212100China Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications MontrealQCJ3X 1P7Canada

Metal-organic framework-like materials(MOFs)have been developed in the fields of photocatalysis for their excellent optical properties and physicochemical properties,including environmental remediation,CO_(2)photoreduction,water splitting,and so *** their important roles in various fields,rare earth elements have received growing interests from *** MOFs with rare earth elements for modification allows broadening the absorption spectrum,while the active electrons on their empty 4f orbitals can act as traps to capture photoexcited carriers to inhibit the recombination of electron-hole pairs,thus promoting photocatalytic ***,rare earth elements modified MOFs provide an attractive way to achieve their high value *** this mini-review,the synthesis of rare earth element-modified MOFs photocatalysts and corresponding applications in the removal of antibiotics,CO_(2)reduction,and hydrogen production are constructively summarized and ***,the latest advancements and current difficulties of these materials as well as the application prospects are also provided.

关键词： Rare earth metals MOFs Photocatalytic CO_(2) reduction Environmental remediation Water splitting

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A post-modification strategy to precisely construct dual-atom sites for oxygen reduction electrocatalysis

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Journal of Energy Chemistry 2024年第3期90卷 511-517,I0012页

作者： Juan Wang Xinyan Liu Chang-Xin Zhao Yun-Wei Song jia-Ning Liu Xi-Yao Li Chen-Xi Bi Xin Wan jianglan Shui Hong-jie Peng Bo-Quan Li jia-Qi Huang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Dual-atom catalysts(DACs) afford promising potential for oxygen reduction electrocatalysis due to their high atomic efficiency and high intrinsic ***,precise construction of dual-atom sites remains a *** this work,a post-modification strategy is proposed to precisely fabricate DACs for oxygen reduction ***,a secondary metal precursor is introduced to the primary single-atom sites to introduce direct metal-metal interaction,which ensures the formation of desired atom pair structure during the subsequent pyrolysis process and allows for successful construction of *** as-prepared FeCo-NC DAC exhibits superior oxygen reduction electrocatalytic activity with a half-wave potential of 0,91 V *** hydrogen ***-air batteries equipped with the FeCo-NC DAC demonstrate higher peak power density than those with the Pt/C *** importantly,this post-modification strategy is demonstrated universal to achieve a variety of dual-atom *** work presents an effective synthesis methodology for precise construction of catalytic materials and propels their applications in energy-related devices.

关键词： Dual-atom catalysts Electrocatalysis Oxygen reduction reaction Post-modification Zinc–air batteries

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Photoexcitation of Dihydroquinazolinone Anionic Compounds:Difluoroalkylarylation and Difluoroalkylamination of Alkenes

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CCS Chemistry 2024年第10期6卷 2549-2559页

作者： jian-Xiong Yang jia-Qing Hu Qi Wen jie Xu Yan Zhang Heng jiang School of Chemistry and Chemical Engineering Chemistry and Biomedicine Innovation Center(Chem BIC)Nanjing UniversityNanjing 210023 Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Frontiers Science Center of Drug Target Identification and DeliverySchool of Pharmaceutical SciencesShanghai Jiao Tong UniversityShanghai 200240

The direct excitation of dihydroquinazolinone(DHQ)anions by visible light has been demonstrated by photophysical *** excited-state DHQ anion serves as both a potent reductant and a radical precursor in a redox neutral radical cascade,circumventing the use of an external photoredox *** gem-difluoroalkyl radicals(CF_(2)H and CF_(2)R)are produced from the excited-state DHQ anions,leading to the first example of intermolecular 1,2-difluoroalkylarylation(CF_(2)H-and CF_(2)R-arylation)of alkenes in overall redox-neutral ***,1,2-difluoroalkylamination of styrenes has also been realized,offering a practical pathway for the preparation of diverseβ-CF_(2)H *** general and efficient strategy for the generation of CF_(2)H and CF_(2)R radicals exhibits great potential for applications in drug discovery.

关键词： excited state anion difluoromethyl radical difluoromethylation photochemistry radical chemistry

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Potentials of ribosomopathy gene as pharmaceutical targets for cancer treatment

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Journal of Pharmaceutical Analysis 2024年第3期14卷 308-320页

作者： Mengxin Wang Stephen Vulcano Changlu Xu Renjian Xie Weijie Peng jie Wang Qiaojun Liu Lee jia Zhi Li Yumei Li Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of jiangxi Province Gannan Medical UniversityGanzhouJiangxi341000China School of Rehabilitation Medicine Gannan Medical UniversityGanzhouJiangxi341000China Autoimmunity and Inflammation Program HSS Research InstituteHospital for Special Surgery New YorkNew YorkNY10021USA Division of Oral and Systemic Health Sciences School of DentistryUniversity of CaliforniaLos AngelesCA90095USA School of Medical Information Engineering Gannan Medical UniversityGanzhouJiangxi341000China Inflammation and Immune Mediated Diseases Laboratory of Anhui Province Anhui Institute of Innovative DrugsInstitute for Liver Diseases of Anhui Medical UniversitySchool of PharmacyAnhui Medical UniversityHefei230032China School of Basic Medicine Gannan Medical UniversityGanzhouJiangxi341000China Institute of Oceanography Minjiang UniversityFuzhou350108China

Ribosomopathies encompass a spectrum of disorders arising from impaired ribosome biogenesis and reduced *** or dysexpression of the genes that disturb any finely regulated steps of ribosome biogenesis can result in different types of ribosomopathies in clinic,collectively known as ribosomopathy *** data suggest that ribosomopathy patients exhibit a significantly heightened susceptibility to *** ribosome biogenesis and dysregulation of some ribosomopathy genes have also been found to be intimately associated with cancer *** correlation between ribosome biogenesis or ribosomopathy and the development of malignancies has been well *** work aims to review the recent advances in the research of ribosomopathy genes among human cancers and meanwhile,to excavate the potential role of these genes,which have not or rarely been reported in cancer,in the disease development across *** plan to establish a theoretical framework between the ribosomopathy gene and cancer development,to further facilitate the potential of these genes as diagnostic biomarker as well as pharmaceutical targets for cancer treatment.

关键词： Ribosome biogenesis Ribosomopathy gene Cancer treatment target Pharmaceutical target

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Mesenteric adipose tissue B lymphocytes promote intestinal injury in severe acute pancreatitis by mediating enteric pyroptosis

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Hepatobiliary & Pancreatic Diseases International 2024年第3期23卷 300-309页

作者： Qing Huang jia-Wen Liu Hai-Bin Dong Zheng-jie Wei Jin-Zhe Liu Yu-Tang Ren Xuan jiang Bo jiang Department of Gastroenterology Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 102218China

Background:Visceral adipose tissue(VAT)has been linked to the severe acute pancreatitis(SAP)prognosis,although the underlying mechanism remains *** has been reported that pyroptosis worsens *** present study aimed to verify whether mesenteric adipose tissue(MAT,a component of VAT)can cause secondary intestinal injury through the pyroptotic ***:Thirty-six male Sprague Dawley(SD)rats were divided into six different *** rats were randomly divided into the SAP and control *** monitored the changes of MAT and B lymphocytes infiltration in MAT of SAP *** SAP rats were injected with MAT B lymphocytes or phosphate buffer solution(PBS).The remaining twelve SAP rats were first injected with MAT B lymphocytes,and then with MCC950(NLRP3 inhibitor)or *** collected blood and tissue samples from pancreas,gut and MAT for ***:Compared to the control rats,the SAP group showed inflammation in MAT,including higher expression of tumor necrosis factor(TNF-α)and interleukin-6(IL-6),lower expression of IL-10,and histological *** cytometry analysis revealed B lymphocytes infiltration in MAT but not T lymphocytes and *** SAP rats also exhibited intestinal injury,characterized by lower expression of zonula occludens-1(ZO-1)and occludin,higher levels of lipopolysaccharide and diamine oxidase,and pathological *** expression of NLRP3 and n-GSDMD,which are responsible for pyroptosis,was increased in the intestine of SAP *** injection of MAT B lymphocytes into SAP rats exacerbated the inflammation in *** upregulation of pyroptosis reduced tight junction in the intestine,which contributed to the SAP progression,including higher inflammatory indicators and worse histological *** administration of MCC950 to SAP+MAT B rats downregulated pyroptosis,which subsequently improved the intestinal barrier and ameliorated inflammatory response of ***:In SAP,MAT B lymphocytes aggravated local

关键词： Acute pancreatitis Mesenteric adipose tissue B lymphocyte Intestinal barrier Pyroptosis

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