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Chinese Journal of Chemical Engineering 2019年第4期27卷 818-826页

作者： Bixuan Gao Minhui Huang Zhiguo Zhang Qiwei yang Baogen Su yiwen yang Qilong Ren Zongbi Bao Key Laboratory of Biomass Chemical Engineering of the Ministry of Education College of Chemical and Biological EngineeringZhejiang University

Metal–organic frameworks(MOFs) packed in the column have been a promising candidate as the stationary phase for high performance liquid chromatography(HPLC). However, the direct packing of irregular MOF powder could raise some problems like high back pressure and low column efficiency in the HPLC separation. In this work, UiO-66 capable of separating xylenes was supported effectively on the surface of the monodisperse spherical silica microspheres by one-pot method. The hybridization of Ui O-66 and silica microspheres(termed UiO-66@SiO2 shell–core composite) was prepared by stirring the suspension of the precursors of Ui O-66 and\\COOH terminated silica in the N,N-dimethylformamide with heating. The shell–core composite material UiO66@SiO2 was characterized by SEM, TEM, PXRD and FTIR. Then, it was used as a packing material for the chromatographic separation of xylene isomers. Xylene isomers including o-xylene, m-xylene and p-xylene were efficiently separated on the column with high resolution and good reproducibility. Moreover, the Ui O-66@SiO2 shell–core composites packed column still remained reverse shape selectivity as Ui O-66 possessed, and the retention of xylenes was probably ascribed to the hydrophobic effect between analytes and the aromatic rings of the Ui O-66 shell. The Ui O-66@SiO2 shell–core composites obtained in this study have some potential for the separation of structural isomers in HPLC.

关键词： Adsorption Chromatography Separation Hybridization Metal–organic framework Silica

A robust ethane-trapping metal-organic framework for efficient purification of ethylene

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Science China Chemistry 2021年第4期64卷 666-672页

作者： Sisi Jiang Liangying Li Lidong Guo Changhua Song Qiwei yang Zhiguo Zhang yiwen yang Qilong Ren Zongbi Bao Key Laboratory of Biomass Chemical Engineering of the Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China Institute of Zhejiang University-Quzhou Quzhou 324000China

Owing to the similar physicochemical properties between ethane(C_(2)H_(6))and ethylene(C_(2)H_(4)),obtaining polymerization-grade C_(2)H_(4)(≥99.95%pure)is still a tricky problem in the petrochemical ***,we report a robust scandium-based metalorganic framework(Sc BPDC),which is connected by oxygen-rich phenyl ligand with exceptionally high thermal stability(up to873 K)and capacity of C_(2)H_(6)(4.94 mmol/g at 100 k Pa and 283 K),exhibiting superior separation performance of C_(2)H_(6)/C_(2)H_(4) mixture(the IAST selectivity is up to 1.7 at 283 K).Importantly,Sc BPDC can produce 8.96 L/kg C_(2)H_(4) with≥99.99%purity while the C_(2)H_(4)/C_(2)H_(6)(50:50,v/v)as the mixture injection and the low isosteric heat of Sc BPDC(16.4 k J/mol for C_(2)H_(6))validates the facility of adsorbent ***,theoretical calculations demonstrate the C_(2)H_(6) molecules are trapped in the nonpolar pore surface via C–H···πand C–H···O interactions between multiple hydrogen atoms of C_(2)H_(6) and the host framework.

关键词： metal-organic frameworks adsorption separation ethane ethylene

Potential regulation of small RNAs on bacterial function activities in pig farm wastewater treatment plants

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Journal of Environmental Sciences 2020年第5期32卷 292-300页

作者： yiwen yang Sicheng Xing Sumin Li Yajing Niu Cheng Li Tuoxin Huang Xindi Liao College of Animal Science South China Agricultural UniversityGuangzhou 510642China Key Laboratory of Tropical Agricultural Environment Ministry of AgricultureSouth China Agricultural UniversityGuangzhou 510642China Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding South China Agriculture UniversityGuangzhou 510642China

Small RNAs(sRNAs)are key players in the regulation of bacterial gene ***,the distribution and regulatory functions of sRNA in pig farm wastewater treatment plants(WWTPs)remains *** this study,the wastewaters in anoxic and oxic tanks of the WWTPs were *** profiles of the community structure,mRNA expression,and sRNA expression of bacteria in pig farm wastewater were investigated using transcriptome sequencing and *** study demonstrated that there was a higher abundance of sRNA in the pig farm WWTPs and 52 sRNAs were *** sRNAs were mainly present in Proteobacteria and Firmicutes,including the potential human pathogenic bacteria(HPB)(Escherichia,Shigella,Bordetella and Morganella),crop pathogen(Pectobacterium)and denitrifying bacteria(Zobellella).And the sRNAs were involved in the bacterial functional activities such as translation,transcription,drug resistance,membrane transport and amino acid *** addition,most sRNAs had a higher abundance in anoxic tanks which contained a higher abundance of the genes associated with infectious diseases and drug resistance than that in oxic *** results presented here show that in pig farm WWTPs,sRNA played an important role in bacterial function activities,especially the infectious diseases,drug resistance and denitrification,which can provide a new point of penetration for improving the pig farm WWTPs.

关键词： Small RNA Regulation Bacterial function Pig farm Wastewater treatment plants

Inhibitory effects of oxyresveratrol on ERK and Smad1/2 phosphorylation and HSC activation in preventing carbon tetrachloride-induced rat liver fibrosis

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Food Science and Human Wellness 2021年第1期10卷 6-12页

作者： Guliang yang Jianfeng Zhan yiwen yang Li Yuan Peilei Wang Chi-Tang Ho Shiming Li Hubei Key Laboratory of EFGIR Huanggang Normal UniversityHuanggangHubeiChina Department of Food Science Rutgers UniversityNew BrunswickNJUSA

Oxyresveratrol(ORes,trans-2,4,3′,5′-tetrahydroxy stilbene)naturally exists in mulberry,grapes,peanuts and other *** belongs to stilbene polyphenolic family and has an extra hydroxyl group at 2-position comparing with resveratrol(Res).Hence,ORes has stronger antioxidant activity than *** present study,we employed a rat hepatic fibrosis model induced by carbon tetrachloride(CCl_(4))and administrated ORes via gavage feeding to study the protective effects and potential mechanisms of ORes against hepatic *** demonstrated that rat liver oxidative damage induced by CCl_(4)was significantly alleviated after ORes ***,the mRNA transcription levels ofα-smooth muscle actinn(˛-SMA),desmin,and two MMPs(MMP2 and MMP9)were reduced and the expression levels of transforming growth factorβ1(TGF-β1),p-small mother against decapen-taplegic protein(Smad)1/2 and p-extracellular signal-regulated kinases(ERK)1/2 in the liver tissue down-regulated *** a parallel study with Res,ORes showed more efficacious protective effect than Res against rat liver fibrosis,which is attributed to extended conjugation system due to the extra hydroxyl group at 2-position on ORes making it more electron-rich and susceptible to oxidation than ***,dietary consumption of mulberry and other fruits containing ORes may be beneficial in the prevention of liver fibrosis.

关键词： Oxyresveratrol Hepatic fibrosis Oxidative stress TGF-β/Smad/ERK signaling pathway

Hydrogen-bonded metal-nucleobase frameworks for highly selective capture of ethane/propane from methane and methane/nitrogen separation

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Nano Research 2022年第8期15卷 7695-7702页

作者： Ying Liu Qianqian Xu Lihang Chen Changhua Song Qiwei yang Zhiguo Zhang Dan Lu yiwen yang Qilong Ren Zongbi Bao Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China Institute of Zhejiang University-Quzhou Quzhou 324000China

The separation of light hydrocarbons,including C_(2)H_(6)and C_(3)H_(8),is essential to natural gas ***,N_(2)removal from CH_(4)is also crucial to concentrating low-quality coalbed methane,but the adsorption process is challenging because of the close kinetic *** work reports two hydrogen-bonded metal-nucleobase frameworks(HOF-ZJU-201 and HOF-ZJU202)capable of efficiently separating C_(3)H_(8)/CH_(4),C_(2)H_(6)/CH_(4),and CH_(4)/N_(2).Due to strong affinity for C_(3)H_(8)and C_(2)H_(6),the lowpressure capacity for C_(3)H_(8)(5 kPa)and C_(2)H_(6)(10 kPa)of HOF-ZJU-201a exceeds most *** ideal adsorbed solution theory(IAST)selectivity of C_(3)H_(8)/CH_(4)and C_(2)H_(6)/CH_(4)is 119 and 45 at ambient *** to density functional theory calculations,surface polarization environments formed by electron-rich anions and electron-deficient purine heterocyclic rings contribute to the selective capture of C_(3)H_(8)and C_(2)H_(6)with greater ***,the high CH_(4)adsorption capacity(1.73 mmol/g for HOF-ZJU-201a and 1.50 mmol/g for HOF-ZJU-202a at 298 K and 1.0 bar)and excellent CH_(4)/N_(2)selectivity(6.0 for HOF-ZJU-201 at 298 K),as well as dynamic breakthrough experiments of binary CH_(4)/N_(2)gas mixture implied their efficacy in the concentration of low-quality coalbed methane.

关键词： hydrogen-bonded frameworks methane natural gas adsorption separation

Room-temperature hydrogenation of halogenated nitrobenzenes over metal-organic-framework-derived ultra-dispersed Ni stabilized by N-doped carbon nanoneedles

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Frontiers of Chemical Science and Engineering 2022年第12期16卷 1782-1792页

作者： Yuemin Lin Yuanyuan Zhang Renfeng Nie Kai Zhou Yao Ma Mingjie Liu Dan Lu Zongbi Bao Qiwei yang yiwen yang Qilong Ren Zhiguo Zhang Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China School of Chemical Engineering Henan Center for Outstanding Overseas ScientistsZhengzhou UniversityZhengzhou 450001China Institute of Zhejiang University—Quzhou Quzhou 324000China

Ultra-dispersed Ni nanoparticles(7.5 nm)on nitrogen-doped carbon nanoneedles(Ni@NCNs)were prepared by simple pyrolysis of Ni-based metal–organic-framework for selective hydrogenation of halogenated nitrobenzenes to corresponding *** different crystallization methods(stirring and static)were compared and the optimal pyrolysis temperature was ***@NCNs were systematically characterized by wide analytical *** the hydrogenation of p-chloronitrobenzene,Ni@NCNs-600(pyrolyzed at 600°C)exhibited extraordinarily high performance with 77.9 h^(–1)catalytic productivity and>99%p-chloroaniline selectivity at full p-chloronitrobenzene conversion under mild conditions(90°C,1.5 MPa H2),showing obvious superiority compared with reported Ni-based ***,the reaction smoothly proceeded at room temperature with full conversion and>99%***,Ni@NCNs-600 afforded good tolerance to various nitroarenes substituted by sensitive groups(halogen,nitrile,keto,carboxylic,etc.),and could be easily recycled by magnetic separation and reused for 5 times without *** adsorption tests showed that the preferential adsorption of–NO2 on the catalyst can restrain the dehalogenation of p-chloronitrobenzene,thus achieving high p-chloroaniline *** the high activity can be attributed to high Ni dispersion,special morphology,and rich pore structure of the catalyst.

关键词： halogenated nitrobenzenes room-temperature hydrogenation Ni nanoparticles nitrogen-doped carbon nanoneedles metal–organic-framework

Assessment of the forensic application of 50 Y-STR markers in a large pedigree

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Forensic Sciences Research 2022年第2期7卷 207-210页

作者： Yi Ye Yuran An yiwen yang Hao Wu Yuzi Zheng Linchuan Liao West China School of Basic Medical Sciences&Forensic Medicine Sichuan UniversityChengduChina Criminal Technology Department Liupanshui Public Security BureauGuizhouChina

Short tandem repeats on the Y chromosome(Y-STRs),characterized by paternal inheritance,are valuable in forensic ***,the potential application of Y-STRs in pedigrees should be drawn upon,especially in China’s surname-concentrated natural *** study focused on 50 Y-STRs,including 13 rapidly mutating(RM)Y-STRs that largely constitute the current Y-STR commercial kits,and determined the differences in these Y-STRs between branches in a large pedigree and the discriminatory power of these haplotypes in different units for male *** indicated in the results,14 inconsistencies were observed at 9 Y-STRs between 10 father-son *** addition,these 50 Y-STR haplotypes discriminated 10 out of 47 father-son pairs,106 of 148 cousin pairs,70 of 119 uncle-nephew pairs,17 of 39 brother pairs,and 14 out of 33 grandfather-grandson pairs in a large *** RM Y-STR set is able to differentiate close male relatives in a large pedigree.

关键词： Forensic sciences forensic genetics Y-STR haplotype rapid mutation pedigree

Porous Hydrogen-Bonded Frameworks Assembled from Metal-Nucleobase Entities for Xe/Kr Separation

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CCS Chemistry 2022年第1期4卷 381-388页

作者： Ying Liu Juanjuan Dai Lidong Guo Zhiguo Zhang yiwen yang Qiwei yang Qilong Ren Zongbi Bao Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027 Institute of Zhejiang University-Quzhou Quzhou 324000

It is challenging to obtain high-purity xenon(Xe)and krypton(Kr)from the by-products of the air separation process due to their similar atom size and physical *** using porous materials such as metal–organic frameworks(MOFs)has been considered a promising technology to separate Xe/***,we report two novel isostructural ionic supramolecular MOFs(SMOFs;SMOF-PFSIX-1 and SMOF-AsFSIX-1),in which inorganic anions(PF_(6)^(−)or AsF_(6)^(−))and cationic metal–organic entities have self-assembled through hydrogen bonds to give three-dimensional pore *** two kinds of SMOFs can efficiently separate Xe/Kr with ideal adsorbed solution theory(IAST)selectivity values of 6.9 and 6.7 under 298 K and 1.0 bar,*** breakthrough experiments further confirm their industrial application *** grand canonical Monte Carlo(GCMC)and density functional theory(DFT)calculations revealed that there are multiple adsorptive sites to capture the Xe atom,and the affinity between Xe and frameworks can be attributed to the inorganic anions and amino groups on the *** the best of our knowledge,this was the first report of using SMOFs for Xe/Kr separation,and we proposed a new strategy for Xe/Kr separation based on the synergistic effect of amino and inorganic anions.

关键词： supramolecular metal-organic frameworks gas separation adsorption xenon krypton

Aldo-keto reductase 1B:Much learned,much more to do

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hLife 2024年第4期2卷 154-178页

作者： Yaya Zhao Miaomiao Zhang Huaping Li yiwen yang Xiaofu Lu Junjing Yu Lei Pan The Center for Microbes Developmentand HealthKey Laboratory of Molecular Virology and ImmunologyShanghai Institute of Immunity and InfectionChinese Academy of SciencesShanghaiChina CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijingChina CAS Center for Excellence in Molecular Cell Science Chinese Academy of SciencesShanghaiChina University of Chinese Academy of Sciences BeijingChina

The aldo-keto reductase 1B(AKR1B)subfamily was initially known for its association with the pathogenesis of secondary diabetic complications such as retinopathy,neuropathy,nephropathy,and ***,over the past few decades,all drug development efforts targeting this family have failed for one reason or ***,a growing body of evidence showing the deep involvement of AKR1B in metabolic reprogramming and production of signaling metabolites has led to a re-evaluation of their role in the pathogenesis of several immunometabolism-related diseases,such as gastrointestinal diseases,psoriasis,congenital disorders of glycosylation,carcinogenesis,even progression,and acquired ***,in this review,we will summarize the current knowledge of AKR1B,highlighting their potential function in regulating immune cell function and then inflammatory *** will also explore how discovering this new insight into this old enzyme is essential for envisioning potential therapeutic strategies to prevent or treat inflammatory diseases.

关键词： aldo-keto reductase 1B gastrointestinal diseases psoriasis congenital disorder of glycosylation cancer aldo-keto reductase 1B inhibitor

Maqianzi (马钱子 Strychnos), A Poisonous Medicinal Native to the Western Regions

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Chinese Medicine and Culture 2019年第1期2卷 44-47页

作者： yiwen yang Baican yang Department of Chinese Materia Medica Shanghai University of Traditional Chinese MedicineShanghaiChina

Maqianzi(马钱子Strychnos)is also called“Fanmubie(番木鳖),"“Kushi(苦实)”and“QianJi drug(牵机药).”The alias“Fanmubie”shows its origin and its *** name of“Kushi”implies its taste and flavor.“Qianji Drug vividly shows the clinical manifestations of the poisoning of *** name of“Maqianzi”is the comprehensive display of its characteristic,toxicity,etc.,Maqianzi is famous for its poison,which is often used in the treatment of various intractable *** shows the poison Culture in the Western Regions,meanwhile it also displays the unique charm of Traditional herbs in transforming poison into treasure.

关键词： Fanmubie,Kushi,Maqianzi(马钱子Strychnos),QianJi drug poison culture in the Western Regions,use