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1、CommunicationHighlySelectiveAnionicCounterion-based2RFluorescentSensorforHgbyGraftedaConjugatedPolyelectrolytesZhiyongZhang,QuliFan,*PengfeiSun,LulinLiu,XiaomeiLu,BoLi,YiwuQuan,WeiHuang*Graftedconjugatedpolyelectrolytesweresynthesizedforthefirsttimeandcharacterized.The2þpolymersdemonstratedproper
2、tiesofaconvenientandefficientprotocolforcreatingHgsensors.Theuniquecharacterofthenewmaterialcomesfromananioniccounterionnaturewithnoexternalcofactors,andimpartshighselectivityandfastdetectionformercuryioninafluorescenceprobe.Theconceptmaybepotentiallyappliedtocreatenewsensorsformonitoringotherions
3、.Introduction[1]Mercuryisoneofthemostnotoriousheavymetalswhich[2]causesseriousenvironmentalandhealthproblems.Owingtosuchconcerns,interestindesigningandconstructingchemosensorswithextremelyhighselectivity2þandsensitivityforHghasbeenexperiencinganupsurge.[3][4]Todate,sensorsbasedonsmallorganicmole
4、cules,DNA,[5][6][7]protein,oligonucleotide,andalkyneoxymercurationW.Huang,Q.L.Fan,Z.Y.Zhang,L.L.Liu,B.Li,X.M.Luhavebeeninvestigated.ManyofthesesystemshaveKeyLaboratoryforOrganicElectronics&InformationDisplayslimitationssuchasnonspecificinterferencefromcompet-(KLOEID)andInstituteofAdvancedMaterial
5、s(IAM),Nanjingingmetalions,lowwatersolubility,extremelyhightime-UniversityofPosts&Telecommunications(NUPT),9Wenyuanconsumption,elevatedworkingtemperatures,oranitro-Road,Nanjing210046,Jiangsu,Chinagen-purgebufferwhichcauseinconvenienceformercuryFax:(þ86)25-85866396;E-mail:wei-huang@njupt.edu.cn;i
6、amqlfan@njupt.edu.cndetectioninbiologicalsamples.P.F.SunRecently,conjugatedpolyelectrolytes(CPEs)havebeenCollegeofMaterialScienceandEngineering,GuilinUniversityofusedasopticalplatformsinhighlysensitivechemicalandTechnology,12JianganRoad,Guiling541004,Guangxi,Chinabiologicalsensorsduetotheamplific
7、ationoffluorescentY.W.Quan[8]signalsandelectrostaticinteractions.Atpresent,twoDepartmentofPolymerScience&Engineering,StateKeyprimarysystemsbasedonCPEsareusedforsensingHg2þ:LaboratoryofCoordinationChemistry,SchoolofChemistryan
