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Research | Science Partner Journal

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The open access journal Research, published in association with CAST, publishes innovative, wide-ranging research in life sciences, physical sciences, ... GetOure-AlertsSubmitManuscript+JournalMenuJournalOverviewForAuthorsForReviewersForEditorsArticlesinPressTableofContentsGetOure-AlertsSubmitManuscriptAPC$1500**Includes 50%discount:LearnmoreaboutAPCsMissionandScopeRecentlyPublishedHeatTreatmentPromotesUbiquitin-MediatedProteolysisofSARS-CoV-2RNAPolymeraseandDecreasesViralLoad YasenMaimaitiyiming  |  TaoYang  |  ...  |  HuaNaranmandura  |  +7OthersReadthefullarticleJournalprofileTheopenaccessjournalResearch,publishedinassociationwithCAST,publishesinnovative,wide-rangingresearchinlifesciences,physicalsciences,engineeringandappliedscience. AboutthisjournalEditorialboardResearch's EditorialBoardincludesinternationalexpertsinfieldsrangingfromlifesciencestophysicalsciences.TianhongCuiofUniversityofMinnesotaandWeiminBaoofChinaAssociationforScienceandTechnologyserveastheEditors-in-Chiefofthejournal. MeettheeditorialboardAnouncementsRecentlypublishedspecialissues: • PerovskiteMaterials • OrganicSuperLongAfterglow News: ResearchisnowindexedinWebofScienceSCIEinthemultidisciplinarycategoryandisexpectedtoreceiveitsfirstImpactFactorin2022. MorespecialissuedetailsLatestArticlesMorearticlesResearchArticle25Feb2022LocalAtomicConfigurationinPristineandA-SiteDopedSilverNiobatePerovskiteAntiferroelectrics JingGao  |  WeiLi  |  ...  |  Jing-FengLiAntiferroelectricshaveattractedincreasingresearchinterestsinrecentyearsduetoboththeirgreatpotentialinenergystorageapplicationsandintriguingstructuralcharacteristics.However,thelinksbetweentheelectricalpropertiesandstructuralcharacteristicsofdistortedperovskiteantiferroelectricsareyettobefullydeciphered.Here,weadoptlocal-structuremethodstoelucidatethenanoscaleatomicstructureofAgNbO3-basedantiferroelectricsandtheirstructuralevolutionuponLadoping.Thelocalstructuralfeaturesincludinginteratomicdistancedistributionsandatomicdisplacementshavebeenanalyzedusingneutronsmall-boxpairdistributionfunction(PDF)refinementinconjunctionwithlarge-boxReverseMonteCarlomodelling.OurresultshighlightthecorrelationofcationdisplacementsinAgNbO3anditsdisruptionbytheincorporationofLa,apparentlyincorroborationwiththeobservedanomalousdielectricproperties.SpatialorderingofcationvacanciesisobservedinLa-dopedAgNbO3samples,whichcoordinateswithoxygenoctahedraltiltingtorelievelatticestrain.TheseresultsproviderenewedinsightsintotheatomicstructureandantiferroelectricphaseinstabilitiesofAgNbO3andrelevantperovskitematerials,furtherlendingversatileopportunitiesforenhancingtheirfunctionalities.ReadthefullarticleResearchArticle24Feb2022FlexibleVertexEngineerstheControlledAssemblyofDistortedSupramolecularTetrahedralandOctahedralCages Shu-JinBao  |  Ze-MingXu  |  ...  |  Jian-PingLangDesigningandbuildinguniquecageassembliesattractincreasinginterestfromsupramolecularchemistsbutremainsyntheticallychallenging.Herein,weproposetheuseofaflexiblevertexwithadjustableanglestoselectivelyformhighlydistortedtetrahedralandoctahedralcages,forthefirsttime,inwhichtheflexiblevertexformsfromthesynergisticeffectofcoordinationandcovalentinteractions.Theinherentinterligandangleofthevertexcanbemodulatedbyguestanionspresent,whichallowsforthefine-tuningofdifferentcagegeometries.Furthermore,thereversiblestructuraltransformationbetweentetrahedralandoctahedralcageswasachievedbyanionexchangemonitoredbymassspectrometrictechnique,thesmalleranionsfavoringtetrahedralcages,whilethelargeranionssupportingoctahedralcages.Additionally,theKBr-basedcagethinfilmsexhibitedprominentenhancementoftheirthird-orderNLOresponsesintwoorthreeordersofmagnitudecomparedtothoseobtainedfortheircorrespondingsolutions.Thisworknotonlyprovidesanewmethodologytobuildirregularpolyhedralstructuresinacontrolledandtunablewaybutalsoprovidesaccesstonewkindsofpromisingfunctionalopticalmaterials.ReadthefullarticleResearchArticle16Feb2022UnderstandingContactElectrificationatWater/PolymerInterface YangNan  |  JiajiaShao  |  ...  |  ZhongLinWangContactelectrification(CE)involvesacomplexinterplayofphysicalinteractionsinrealisticmaterialsystems.Forthisreason,scientificconsensusonthequalitativeandquantitativeimportanceofdifferentphysicalmechanismsonCEremainsaformidabletask.TheCEmechanismatawater/polymerinterfaceisacrucialchallengeowingtothepoorunderstandingofchargetransferattheatomiclevel.First-principledensityfunctionaltheory(DFT),usedinthepresentwork,proposesanewparadigmtoaddressCE.OurresultsindicatethatCEfollowsthesametrendasthegapbetweenthehighestoccupiedandlowestunoccupiedmolecularorbitals(HOMOandLUMO)ofpolymers.Electrontransferoccursattheoutmostatomiclayerofthewater/polymerinterfaceandiscloselylinkedtothefunctionalgroupsandatomlocations.Whenthepolymerchainsareparalleltothewaterlayer,mostelectronsaretransferred;conversely,iftheyareperpendiculartoeachother,thetransferofchargescanbeignored.WedemonstratethatadecreaseintheinterfacedistancebetweenwaterandthepolymerchainsleadstoCEinquantitativeagreementwiththeelectroncloudoverlapmodel.WefinallyuseDFTcalculationstopredictthepropertiesofCEmaterialsandtheirpotentialfortriboelectricnanogeneratorenergyharvestingdevices.ReadthefullarticleResearchArticle16Feb2022Multilayer3DChiralFoldingPolymersandTheirAsymmetricCatalyticAssembly YaoTang  |  ShengzhouJin  |  ...  |  GuigenLiAnovelclassofpolymersandoligomersofchiralfoldingchiralityhasbeendesignedandsynthesized,showingstructurallycompactedtriple-column/multiple-layerframeworks.Bothuniformedanddifferentiatedaromaticchromophoricunitsweresuccessfullyconstructedbetweennaphthylpiersofthisframework.Screeningmonomers,catalysts,andcatalyticsystemsledtothesuccessofasymmetriccatalyticSuzuki-Miyaurapolycouplings.Enantio-anddiastereochemistrywereunambiguouslydeterminedbyX-raystructuralanalysisandconcurrentlybycomparisonwithasimilarasymmetricinductionbythesamecatalystintheasymmetricsynthesisofachiralthree-layeredproduct.Theresultingchiralpolymersexhibitintensefluorescenceactivityinasolidformandsolutionunderspecificwavelengthirradiation.ReadthefullarticleResearchArticle12Feb2022Site-SpecificPhotochemicalReactionforImprovedC=CLocationAnalysisofUnsaturatedLipidsbyUltravioletPhotodissociation Hai-FangLi  |  JingZhao  |  ...  |  ZhengOuyangUnravelingthecomplexityofthelipidomerequiresthedevelopmentofnovelapproachestofacilitatestructuralidentificationandcharacterizationoflipidspecieswithisomer-leveldiscrimination.Ultravioletphotodissociationtandemmassspectrometry(UVPDMS/MS)isapromisingtoolforstructuredeterminationoflipids.ThesensitivityofUVPDforlipidanalysishoweverislimitedmainlyduetoweakabsorptionofUVphotonsbyaC=C.Herein,aC=Csite-specificderivatization,thePaternò-Büchi(PB)reaction,wasusedtoincorporateachromophoretotheC=Cmoietyinfattyacyls,leadingtosignificantlyimprovedUVPDefficiencyandsensitivityforpinpointingC=Clocations.Thewavelength-dependentphotodissociationofthePBproductsdemonstrated4-CF3-benzophenoneasthebestreagentforUVPDintermsoftheefficiencyofgeneratingC=CdiagnosticfragmentsandsimplicityforC=Clocationassignments.WedemonstratedtheeffectivenessofthisapproachfortheshotgunprofilingofC=Clocationisomersindifferentlipidclassesfromcomplexlipidextracts,highlightingitspotentialtoadvancingtheidentificationoftheC=Cbondlocationsinunsaturatedlipids.ReadthefullarticleResearchArticle11Feb2022AnArtificialReflexArcThatPerceivesAfferentVisualandTactileInformationandControlsEfferentMuscularActions LinSun  |  YiDu  |  ...  |  WentaoXuNeuralperceptionandaction-inspiredelectronicsisbecomingimportantforinteractivehuman-machineinterfacesandintelligentrobots.Asystemthatimplementsneuromorphicenvironmentalinformationcoding,synapticsignalprocessing,andmotioncontrolisdesired.Wereportaneuroinspiredartificialreflexarcthatpossessesvisualandsomatosensorydualafferentnervepathsandanefferentnervepathtocontrolartificialmuscles.Aself-poweredphotoelectricsynapsebetweentheafferentandefferentnerveswasusedasthekeyinformationprocessor.Theartificialreflexarcsuccessfullyrespondstoexternalvisualandtactileinformationandcontrolstheactionsofartificialmuscleinresponsetotheseexternalstimuliandthusemulatesreflexactivitiesthroughafullreflexarc.Thevisualandsomatosensoryinformationisencodedasimpulsespikes,thefrequencyofwhichexhibitedasublineardependenceontheobstacleproximityorpressurestimuli.Theartificialreflexarcsuggestsapromisingstrategytowarddevelopingsoftneuroroboticsystemsandprostheses.ReadthefullarticleAPC$1500**Includes 50%discount:LearnmoreaboutAPCsMissionandScope

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