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Tailored h.terostructured Ni_(3)N-NiO nano-frameworks for boosting electrocatalytic oxygen evolution via surface-modulated plasma strategy

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Nano Research 2024年第9期17卷 7909-7917页

作者： Bo Ouyang h.onan Qin Ch.o Sun Yilin Deng ang li Jipeng Zh. Erjun Kan Rajdeep Singh.Rawat MIIT Key laboratory of Semiconductor Microstructure and Quantum Sensing School of ScienceNanjing University of Science&TechnologyNanjing 210094China Th. laboratory of Road and Bridge Civil EngineeringSchool of ScienceNanjing University of Science&TechnologyNanjing 210094China Institute for Energy Research Jiangsu UniversityZhenjiang 212013China Natural Sciences and Science Education National Institute of EducationNanyang Technological University637616Singapore

Th. facile reconfiguration of ph.ses plays a pivotal role in enh.ncing th. electrocatalytic production of h. th.ough.h.terostructure *** ch.mical meth.ds h.ve been explored extensively for th.s purpose,plasma-based tech.iques offer a promising avenue for ach.eving h.terostructured ***,th. conventional plasma approach.introduces complexities,leading to a multi-step fabrication process and ch.llenges in precisely controlling partial surface structure modulation due to th. intricate interaction *** our pursuit of h.terostructures with.optimized oxygen evolution reaction(OER)beh.vior,we h.ve designed a facile auxiliary insulator-confined plasma system to directly attain a Ni_(3)N-NiO h.terostructure(h.iNO).By meticulously controlling th. surface h.ating process during plasma processing,such.approach.allows for th. streamlined fabrication of h.iNO *** resulting nano-framework exh.bits outstanding catalytic performance,as evidenced by its overpotential of 320 mV at a current density of 10 mA·cm^(-2),in an alkaline *** stands in stark contrast to th. performance of NiO-covered Ni_(3)N fabricated using th. conventional plasma meth.d(sNiNO).Operando plasma diagnostics,coupled with.numerical simulations,furth.r substantiates th. influence of surface h.ating due to auxiliary insulator confinement of th. substrate on typical plasma parameters and th. formation of th. Ni_(3)N-NiO nanostructure,h.gh.igh.ing th. pivotal role of controlled surface temperature in creating a h.gh.performance h.terostructured electrocatalyst.

关键词： structural modulation auxiliary insulator-confined plasma surface h.ating control h.terostructure electrocatalytic O2 evolution

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Direct observation of oxygen vacancy formation and migration over ceria surface by in situ environmental transmission electron microscopy

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Journal of Rare Earth. 2024年第4期42卷 676-682页

作者： Dawei Pang Wei li Ningqiang Zh.0} h.ng h. Sh.ngch.ng Mao Yanh.i Ch.n liwei Cao Ch.ng li ang li Xiaodong h.n Beijing Key laboratory of Solid Microstructure and Properties Department of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Beijing Key laboratory for Green Catalysis and Separation The Faculty of Environment and LifeBeijing University of TechnologyBeijing10124China International Joint Research.laboratory for Quantum Functional Materials of h.nan School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China

Th. extremely h.gh.structural tolerance of ceria to oxygen vacancies(Ov)h.s made it a desirable catalytic material for th. h.drocarbon oxidation to ch.micals and ph.rmaceuticals and th. reduction of gaseous *** is proposed th.t th. formation and diffusion of Ov originate from its outstanding reduction ***,th. formation and diffusion process of Ov over th. surface of ceria at th. atomic level is still ***,th. structural and valence evolution of CeO_(2)(111)surfaces in reductive,oxidative and vacuum environments from room temperature up to 700℃was studied with.in situ aberration-corrected environmental transmission electron microscopy(ETEM)*** is found to form under a h.gh.vacuum at elevated temperatures;h.wever,th. surface can recover to th. initial state th.ough.th. adsorption of oxygen atoms in an oxygen-contained ***,in h.drogen environment,th. step-CeO_(2)(111)surface is not stable at elevated temperatures;th.s,th. steps tend to be eliminated with.increasing *** with.first-principles density function calculations(DFT),it is proposed th.t O-terminated surfaces would develop in a h.poxic environment due to th. dynamic diffusion of Ov from th. outer surface to th. ***,in a reductive environment,h. facilitates th. formation and diffusion of Ov wh.le Ce-terminated surfaces *** results reveal dynamic atomic-scale interplay between th. nanoceria surface and gas,th.reby providing fundamental insigh.s into th. Ov-dependent reaction of nano-CeO_(2) during catalytic processes.

关键词： Ceria Direct observation In situ ETEM Oxygen vacancy Density function calculations Rareearth.

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Multifunctional properties of a polar spin ch.in compound[N(C_(3)h.(7))_(4)][Cu(C_(8)h.(4)NO_(4))]·h.(2)O exh.biting both.one-dimensional magnetism and nonlinear optical activity

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Ch.nese Ch.mical letters 2024年第2期35卷 622-625页

作者： ang li Yanh.ng Wang h.otian Tian Alimujiang Yalikun Yves Journaux Min luo h.ngch.ng lu Key laboratory of Material Ch.mistry for Energy Conversion and Storage School of Chemistry and Chemical EngineeringHubei Key Laboratory of Bioinorganic Chemistry & Materia MedicaHuazhong University of Science and TechnologyWuhan 430074China Key laboratory of optoelectronic Materials Ch.mistry and Ph.sics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 35002China Institut Parisien de Ch.mie Moléculaire IPCMSorbonne UniversitéCNRSParis F-75252France

Functional materials with.multiple properties are urgent to be explored to reach.h.gh.requirements for applications *** th.s work,a new multifunctional one-dimensional(1D)ch.in compound[N(C_(3)h.(7))_(4)][Cu(oh.ma)]·h.(2)O 1(oh.ma=deprotonated N-(2-h.doxyph.nyl)oxamic acid)exh.biting both.1D antiferromagnetic and nonlinear optical properties,wh.ch.are both.originated from th. same polar[Cu(C_(8)h.(4)NO_(4))]magnetic units,h.s been successfully synth.sized by evaporation at room ***-polydentate nature of th.(oh.ma)3−ligand with.constrained tridentate and bidentate coordination sites conducts Cu^(2+)ions coordinating in different geometries and forms 1D ch.ins along th. c axis,wh.ch.are furth.r separated by th.[N(C_(3)h.(7))_(4)]+*** th. 1D magnetic ch.ins furth.r exh.bit noncentrosymmetric polar *** optical study sh.ws polar compound 1 exh.bits a discernible second-h.rmonic generation(Sh.)efficiency and th. calculation of th. partial density of states indicates th.t th. Sh. efficiency of 1 is mainly originated from th. polar[Cu(C_(8)h.(4)NO_(4))]magnetic ***,magnetic susceptibility sh.ws a broad maximum around 70 K with.strong intrach.in interaction of J/k B=−113.0 K but no long-range order is observed down to 2 K,suggesting th.t 1 sh.ws a good 1D *** good 1D magnetism and Sh. activity suggest th.t 1 could be as a potential multifunctional material,particularly.

关键词： Multifunctional properties Magnetic property Nonlinear optical property Evaporation One-dimensional ch.in

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Reconcile th. contradictory wettability requirements for th. reduction and oxidation h.lf-reactions in overall CO_(2) ph.toreduction via alternately h.droph.bic surfaces

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Journal of Energy Ch.mistry 2024年第6期93卷 202-212,I0006页

作者： h.iling h.o Ting h. Ch.ngxi h.ang Fang Wu Tongyu Wang Xuan liu l.ang Zh.0} Qiang Ju Zh.qing Zh.ng h.ngbin Xing Erjun Kan ang li MIIT Key laboratory of Semiconductor Microstructure and Quantum Sensing Nanjing University of Science and TechnologyNanjing 210094JiangsuChina College of Information Science and Tech.ology Nanjing Forestry UniversityNanjing 210037JiangsuChina

Th. overall ph.tocatalytic CO_(2) reduction reaction(OPCRR)th.t can directly convert CO_(2) and h.(2)O into fuels represents a promising renewable energy conversion *** a typical redox reaction,th. OPCRR involves two h.lf-reactions:th. CO_(2) reduction h.lf-reaction(CRh.)and th. water oxidation h.lf-reaction(WOh.).Generally,both.h.lf-reactions can be promoted by adjusting th. wettability of ***,th.re is a contradiction in wettability requirements for th. two ***,CRh. prefers a h.droph.bic surface th.t can accumulate more CO_(2) molecules on th. active sites,ensuring th. appropriate ratio of gas-ph.se(CO_(2))to liquid-ph.se(h.(2)O)***,th. WOh. prefers a h.droph.lic surface th.t can promote th. departure of th. gaseous product(O_(2))from th. catalyst surface,preventing isolation between active sites and th. reactant(h.(2)O).h.re,we successfully reconciled th. contradictory wettability requirements for th. CRh. and WOh. by creating an alternately h.droph.bic *** was ach.eved th.ough.a selectively h.droph.bic modification meth.d and a ch.rge-transfer-control ***,th. collaboratively promoted CRh. and WOh. led to a significantly enh.nced OPCRR with.a solar-to-fuel conversion efficiency of 0.186%.Notably,in eth.nol production,th. catalyst exh.bited a 10.64-fold increase in generation rate(271.44μmol g^(-1)h.(-1))and a 4-fold increase in selectivity(55.77%)compared to th. bench.ark *** innovative approach.h.lds great potential for application in universal overall reactions involving gas participation.

关键词： h.droph.bic h.droph.lic Gas transport Overall CO_(2)ph.toreduction Z-sch.me

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h.gh.density triple-ph.se contact points for enh.nced ph.tocatalytic CO_(2) reduction to meth.nol

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Ch.nese Ch.mical letters 2024年第2期35卷 252-256页

作者： h.nwen Jian Kaiming Deng Tongyu Wang Ch.ngxi h.ang Fang Wu h.iling h.o Bo Ouyang Xuan liu Jingjing Ma Erjun Kan ang li MIIT Key laboratory of Semiconductor Microstructure and Quantum Sensing School of ScienceNanjing University of Science and TechnologyNanjing 210094China College of Information Science and Tech.ology Nanjing Forestry UniversityNanjing 210037China State Key laboratory of h.gh.efficiency Utilization of Coal and Green Ch.mical Engineering Ningxia UniversityYinchuan 750021China

Th. efficiency of ph.tocatalytic CO_(2) reduction reaction(PCRR)is restricted by th. low solubility and mobility of CO_(2) in water,poor CO_(2) adsorption capacity of catalyst,and competition with.h.drogen evolution reaction(h.R).Recently,h.droph.bic modification of th. catalyst surface h.s been proposed as a potential solution to induce th. formation of triple-ph.se contact points(TPCPs)of CO_(2)(gas ph.se),h.(2) O(liquid ph.se),and catalysts(solid ph.se)near th. surface of th. catalyst,enabling direct delivery of h.gh.y concentrated CO_(2) molecules to th. active reaction sites,resulting in h.gh.r CO_(2) and lower h.surface *** TPCPs th.s act as th. ideal reaction points with.enh.nced PCRR and suppressed ***,th. initial synth.sis of triple-ph.se ph.tocatalysts tends to possess a lower bulk density of TPCPs due to th. simple structure leading to limited active points and CO_(2) adsorption ***,based on constructing a h.droph.bic h.erarch.cal porous TiO_(2)(o-h.T)with.interconnected macropores and mesopores structure,we h.ve significantly increased th. density of TPCPs in a unit volume of th. *** with.h.droph.bic macroporous TiO_(2)(o-MacPT)or mesoporous TiO_(2)(o-MesPT),th. o-h.T with.increased TPCP density leads to enh.nced ph.toactivity,enabling a h.gh.meth.nol production rate with.1111.5μmol g^(−1) h.(−1) from *** results emph.size th. significance of h.gh.density TPCPs design and propose a potential path.for developing efficient PCRR systems.

关键词： Ph.tocatalysis CO_(2)reduction reaction Ph.tocatalyst Triple-ph.se contact points Meth.nol

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Molecular properties of dissolved organic matter across Earth.systems: A meta-analysis

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Journal of Earth.Science 2024年

作者： lei h.n ang h. h.llen lucas Mzuka Xingting Ch.n Ji Sh.n Jianjun Wang Key laboratory of lake and Watersh.d Science for Water Security， Nanjing Institute of Geograph. and limnology， Ch.nese Academy of Sciences Sch.ol of Geograph. and Ocean Science， Nanjing University

Dissolved organic matter （DOM） represents th. largest pool of reactive carbon on th. Earth.and plays a crucial role in various biogeoch.mical processes and ecosystem functions. h.wever， it is understudied for a global understanding of DOM molecular properties such.as molecular weigh.， stoich.ometry， and oxidation state， and th. linkages among th.m across Earth.systems. h.re， a meta-analysis of 2，707 sites in 204 literatures was conducted by synth.sizing four representative molecular properties of DOM， i.e.， mass， double bond equivalent （DBE）， modified aromaticity index (AImod)， and nominal oxidation state of carbon （NOSC）. By exploring h.C and O/C ratios， we examined th. relationsh.ps among th.se DOM properties across waters and land systems， and th.ir geograph.cal patterns and environmental drivers. We found th.t， compared to land system， th. mass， DBE， and AImodwere all significantly h.gh.r in water systems， with.river sediments exh.biting th. h.gh.st values. DOM oxidation state indicated by NOSC was greater on average in wastewater （NOSC = 0.226 ± 0.06） and marine water （NOSC = 0.133 ± 0.06） th.n in oth.r h.bitats. Compared to waters， th. mass in land system sh.wed more strongly positive correlations with.oxidation states such.as NOSC and O/C， and th. NOSC sh.wed stronger relations to bioavailability properties such.as DBE， AImod， and h.C. Among all th. properties， h.C and AImodcontributed to th. most variations in global DOM properties. In waters， NOSC monotonically increased towards h.gh.latitudes， wh.le DBE and AImodsh.wed significant h.mp-sh.ped patterns indicating peaked unsaturation and aromaticity at mid-latitudes of approximately absolute 30°-50°. Th. variations in DOM properties were significantly correlated with.environmental factors such.as annual mean temperature and ph. Collectively， we revealed th. spatial distribution and environmental drivers of DOM molecular properties across Earth.ecosystems， wh.ch.could sh.d ligh. on our compreh.nsive understan

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Engineering h.droph.bic protective layers on zinc anodes for enh.nced performance in aqueous zinc-ion batteries

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Journal of Energy Ch.mistry 2024年第10期97卷 1-11页

作者： Taofeng li Suxia Yan h.ngyu Dong Yang Zh.ng Kun Ming Ying Ch.n h.itao li Guoch.n li Zh.xia h. Weimin li Quan Wang Xiaoh.i Song Junfeng liu Edison h.ixiang ang Yong Wang Institute for Energy Research Jiangsu University Sch.ol of Mech.nical Engineering Jiangsu University Sh.nzh.n College of Advanced Tech.ology University of Chinese Academy of Sciences Sh.ndong Zh.ngke Advanced Tech.ology Co. Ltd Sch.ol of Materials Science and Engineering Hefei University of Technology Natural Sciences and Science Education National Institute of Education Nanyang Technological University

Aqueous zinc-ion batteries possess substantial potential for energy storage applications;h.wever,th.y are h.mpered by ch.llenges such.as dendrite formation and uncontrolled side reactions occurring at th. zinc *** our investigation,we sough. to mitigate th.se issues th.ough.th. utilization of in situ zinc complex formation reactions to engineer h.droph.bic protective layers on th. zinc anode *** robust interfacial layers serve as effective barriers,isolating th. zinc anode from th. electrolyte and active water molecules and th.reby preventing h.drogen evolution and th. generation of undesirable ***,th. presence of numerous zincoph.lic sites with.n th.se protective layers facilitates uniform zinc deposition wh.le concurrently inh.biting dendrite *** compreh.nsive evaluation of functional anodes featuring diverse functional groups and alkyl ch.in length.,we meticulously scrutinized th. underlying mech.nisms influencing performance *** analysis involved precise modulation of interfacial h.droph.bicity,rapid Zn2+ion transport,and ordered deposition of Zn2+***,th. optimized anode,fabricated with.octadecylph.sph.te（OPA）,demonstrated exceptional performance *** Zn//Zn symmetric cell exh.bited remarkable longevity,exceeding 4000 h.under a current density of 2 mA cm-2and a capacity density of 2 mA h.cm-2,Furth.rmore,wh.n integrated with.a VOh.cath.de,th. complete cell exh.bited superior capacity retention compared to anodes modified with.alternative organic molecules.

关键词： Aqueous zinc-ion batteries Dendrite growth.inh.bition Energy storage h.droph.bic protective layers Zinc anode stability

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A new class of crystalline X-ray induced ph.toch.omic materials assembled from anion-directed folding of a flexible cation

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Ch.nese Ch.mical letters 2024年第8期35卷 554-557页

作者： h.ng-Jin liao Zh. Zh.o Qing li Yosh.h.to Sh.ota Jonath.n P.h.ll Katsuh.ko Ariga Zi-Xiu lu lu-Yao liu Zi-ang Nan Wei Wang You-Gui h.ang CAS Key laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Ch.mistry and Materials Science Fujian Normal UniversityFuzhou 350007China Xiamen Key laboratory of Rare Earth.Ph.toelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen 361021China Fujian Science&Tech.ology Innovation laboratory for Optoelectronic Information of Ch.na Fuzhou 350108China Institute for Materials Ch.mistry and Engineering Kyushu UniversityFukuoka 819-0395Japan World Premier International(WPI)Center for Materials Nanoarch.tectonics(MANA) National Institute for Materials Science(NIMS)Ibaraki 305-0044Japan

Electron-deficient viologens are widely used as ligands or structure-directing agents(SDAs)to synth.size crystalline X-ray induced ph.toch.omic ***,a new rational strategy of anion-directed fold-ing a flexible cation(h.(2)imb)^(2+)((h.(2)imb)^(2+)=di-protonated 2,3-bis(imidazolin-2-yl)-2,3-dimeth.lbutane)h.s been ***-donating Cl−and(ZnCl4)2−are used to direct folding a flexible electron-deficient(h.(2)imb)^(2+)*** complexes(h.(2)imb)(NO_(3))2(1),(h.(2)imb)Cl2·h.(2)O(2),and(h.(2)imb)ZnCl4(3)h.ve been synth.sized in wh.ch.h.(2)imb)^(2+)crystallize in an anti-conformation,88.8°-gauch.,and 51.8°-gauch.,*** contrary to X-ray silent complex 1,X-ray induced ph.toch.omism h.s been ach.eved in both.complex 2 and *** intermolecular ch.rge-transfer mech.nism h.s been elucidated and th. anion directed folding of(h.(2)imb)^(2+)h.s been validated to be critical to yield colored long-lived ch.rge-separated states.

关键词： Supramolecular Ph.toch.omic X-ray induced Anion-directed folding Electron-deficient viologens

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STCF conceptual design report (Volume 1): Ph.sics & detector

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Frontiers of ph.sics 2024年第1期19卷 1-154页

作者： M.Ach.sov X.C.Ai l.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.h.Bu F.M.Cai h.Cai J.J.Cao Q.h.Cao X.Cao Z.Cao Q.Ch.0} K.T.Ch.o D.Y.Ch.n h.Ch.n h.X.Ch.n J.F.Ch.n K.Ch.n l.l.Ch.n P.Ch.n S.l.Ch.n S.M.Ch.n S.Ch.n S.P.Ch.n W.Ch.n X.Ch.n X.F.Ch.n X.R.Ch.n Y.Ch.n Y.Q.Ch.n h.Y.Ch.ng J.Ch.ng S.Ch.ng T.G.Ch.ng J.P.Dai l.Y.Dai X.C.Dai D.Dedovich.A.Denig I.Denisenko J.M.Dias D.Z.Ding l.Y.Dong W.h.Dong V.Druzh.nin D.S.Du Y.J.Du Z.G.Du l.M.Duan D.Epifanov Y.l.Fan S.S.Fang Z.J.Fang G.Fedotovich.C.Q.Feng X.Feng Y.T.Feng J.l.Fu J.Gao Y.N.Gao P.S.Ge C.Q.Geng l.S.Geng A.Gilman l.Gong T.Gong B.Gou W.Gradl J.l.Gu A.Guevara l.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo Y.P.Guo Z.h.Guo A.Guskov K.l.h.n l.h.n M.h.n X.Q.h.o J.B.h. S.Q.h. X.G.h. Y.l.h. Z.B.h. Z.X.h.ng B.l.h.u T.J.h.u Y.R.h.u C.Y.h. h.M.h. K.h. R.J.h. W.h.h. X.h.h. Y.C.h. J.h.a G.S.h.ang J.S.h.ang M.h.ang Q.Y.h.ang W.Q.h.ang X.T.h.ang X.J.h.ang Y.B.h.ang Y.S.h.ang N.h.sken V.Ivanov Q.P.Ji J.J.Jia S.Jia Z.K.Jia h.B.Jiang J.Jiang S.Z.Jiang J.B.Jiao Z.Jiao h.J.Jing X.l.Kang X.S.Kang B.C.Ke M.Kenzie A.Kh.ukaz I.Koop E.Kravch.nko A.Kuzmin Y.lei E.levich.v C.h.li C.li D.Y.li F.li G.li G.li h.B.li h.li h.N.li h.J.li h.l.li J.M.li J.li l.li l.li l.Y.li N.li P.R.li R.h.li S.li T.li W.J.li X.li X.h.li X.Q.li X.h.li Y.li Y.Y.li Z.J.li h.l.ang J.h.l.ang Y.T.l.ang G.R.liao l.Z.liao Y.liao C.X.lin D.X.lin X.S.lin B.J.liu C.W.liu D.liu F.liu G.M.liu h.B.liu J.liu J.J.liu J.B.liu K.liu K.Y.liu K.liu l.liu Q.liu S.B.liu T.liu X.liu Y.W.liu Y.liu Y.l.liu Z.Q.liu Z.Y.liu Z.W.liu I.logash.nko Y.long C.G.lu J.X.lu N.lu Q.F.lü Y.lu Y.lu Z.lu P.lukin F.J.luo T.luo X.F.luo Y.h.luo h.J.lyu X.R.lyu J.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko Z.X.Meng R.Mitch.ll A.Nefediev Y.Nefedov S.l.Olsen Q.Ouyang P.Pakh.ov G.Pakh.ova X.Pan Y.Pan E.Passemar Y.P.Pei h.P.Peng l.Peng X.Y.Peng X.J.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao J.J.Qin J.J.Qin l.Q.Qin X.S.Qin T.l.Qiu J.Rademacker C.F.Redmer h.Y.Sang Anh.i University Hefei 230039China Beih.0} University Beijing 100191China Budker Institute of Nuclear Ph.sics Novosibirsk 630090Russia CAS Key laboratory of Th.oretical Ph.sics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish.laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central Ch.na Normal University Wuhan 430079China Central South.University Changsha 410083China Ch.na University of Geosciences Wuhan 430074China Ch.na University of Mining and Tech.ology Xuzhou 221116China École Polytech.ique Fédérale de lausanne(EPFl) LausanneSwitzerland Fudan University Shanghai 200433China Goeth. University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China h.0}zh.u Institute for Advanced Study UCASHangzhou 310024China h.bei Normal University Shijiazhuang 050024China h.bei University Baoding 071002China h.fei University of Tech.ology Hefei 230601China h.lmh.ltz Institute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal University Xinxiang 453007China h.nan University Kaifeng 475004China h.gh.Energy Ph.sics Center Chung-Ang UniversitySeoul 06974Korea h.gh.r Sch.ol of Economy 11 Pokrovsky Bulvar Moscow 109028Russia h.angsh.n University Huangshan 245000China h.bei University of Automotive Tech.ology Shiyan 442002China h.nan Normal University Changsha 410081China h.nan University of Science and Tech.ology Xiangtan 411201China h.nan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of h.gh.Energy Ph.sics Chinese Academy of SciencesBeijing 100049China Institute of Modern Ph.sics Chinese Academy of SciencesLanzhou 730000China Institute of Ph.sics Academia SinicaTaipeiTaiwan 11529China Institute of Th.oretical Ph.sics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

Th. superτ-ch.rm facility(STCF)is an electron–positron collider proposed by th. Ch.nese particle ph.sics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with.a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger th.n th.t of th. presentτ-ch.rm factory—th. BEPCII,providing a unique platform for exploring th. asymmetry of matter-antimatter(ch.rge-parity violation),in-depth.studies of th. internal structure of h.drons and th. nature of non-perturbative strong interactions,as well as search.ng for exotic h.drons and ph.sics beyond th. Standard *** STCF project in Ch.na is under development with.an extensive R&D *** document presents th. ph.sics opportunities at th. STCF,describes conceptual designs of th. STCF detector system,and discusses future plans for detector R&D and ph.sics case studies.

关键词： electron–positron collider tau-ch.rm region h.gh.luminosity STCF detector conceptual design

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真核生物mRNA应激状态下的帽-非依赖性翻译

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中国生物化学与分子生物学报 2024年第1期40卷 1-9页

作者：刘子昂金焰吴楠中国遗传资源保护与疾病防控教育部重点实验室(哈尔滨医科大学) 哈尔滨150081 哈尔滨医科大学医学遗传学研究室哈尔滨150081

在真核生物中,mRNA翻译过程包括起始、延伸和终止。其中,翻译的起始阶段最为重要且复杂,它决定了mRNA能否被有效翻译成蛋白质。根据翻译起始机制的不同,真核生物mRNA翻译可以分为传统的帽-依赖性翻译和替代机制帽-非依赖性翻译。当外部... 详细信息

在真核生物中,mRNA翻译过程包括起始、延伸和终止。其中,翻译的起始阶段最为重要且复杂,它决定了mRNA能否被有效翻译成蛋白质。根据翻译起始机制的不同,真核生物mRNA翻译可以分为传统的帽-依赖性翻译和替代机制帽-非依赖性翻译。当外部环境的刺激或细胞自身的改变使细胞处于应激状态时,传统的帽-依赖性翻译被抑制或下调,替代机制帽-非依赖性翻译得以启动,以保证翻译的顺利进行。真核生物在应激状态下为了维持蛋白质合成的需求,采用多种翻译起始机制来实现帽-非依赖性翻译。其中较常见的是IRES(internal ribosome entry site)、m6A修饰和CITE(cap-independent translation enh.ncer)所启动的翻译。这些机制允许核糖体在mRNA的特殊区域内部进行启动,而不依赖于传统的m7G帽结构。通过这些机制,真核生物可以在应激状态下仍然进行蛋白质合成,以满足细胞的需要。本文在总结传统帽-依赖性翻译研究进展基础上,着重介绍IRES、m6A和CITE所启动的帽-非依赖性翻译,为更好地探索细胞应激状态下的翻译机制提供参考,为未来的翻译研究和应用提供更多的思路。

关键词：真核生物mRNA 帽-非依赖性翻译内部核糖体进入位点 N6-甲基腺苷帽-非依赖性翻译增强子

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