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1、fullpapersPhotonicCrystalsANovelOpalClosest-PackingPhotonicCrystalforNaked-EyeGlucoseDetectionXiaodiHong,YuanPeng,JialeiBai,BaoanNing,YuanyuanLiu,ZhijiangZhou,*andZhixianGao*Anovelopalclosest-packing(OCP)photoniccrystal(PC)issuccessfullypreparedfornaked-eyeglucosedetection.ThisPCisfabricated
2、viaaverticalconvectiveself-assemblymethodwithanewtypeofmonodispersemicrospherepolymerizedbyco-monomers,namely,methylmethacrylate(MMA),N-isopropylacrylamide(NIPA),and3-acrylamidophenylboronicacid(AAPBA).TheOCPPChashighstabilityandperiodically-orderedstructure,showingthedesiredstructuralcolor.
3、TheproposedPCmaterialdisplaysaredshiftandreducedreflectionintensitywhendetectingglucosemolecules.Thered-shiftwavelengthreaches75nm,whichclearlychangesthestructuralcolorfrombrilliantbluetoemeraldgreen.Thisvisuallydistinguishablecolorchangefacilitatesthedetectionoftheglucoseconcentrationsfrom3t
4、o20mM,whichdemonstratesthepotentialoftheopalPCmaterialfornaked-eyedetection.Thus,thenovelPMMA–NIPA–AAPBAOCPPCisasimplypreparedandsensitivematerial,whichshowspromisinguseinthediagnosisofdiabetesmellitusandinreal-timemonitoringofdiabetes.Differenttypesofappropriatedrecognitiongroupsareexpected
5、tobeintroducedintothe3DOCPPCtoformnewfunctionalmaterialsorchemicalsensors,whichwillextensivelybroadenthePCmaterialapplication.1.Introductionperiodicstructures.Thus,PCshaveattractedmuchinterestbecauseoftheirpromisingapplicationsinvariousÞelds,suchPhotoniccrystals(PCs)areaclassoffunctionalmate
6、rialsassolarcell,laser,lightbeambending,chemicalsensor,andwithspatiallyorderedlattices,whichexhibitfascinatinglight-emittingdiode.[1]opticalproperties(Braggdiffraction)andbrilliantstruc-PCscanbedividedintomanytypesaccordingtospatialturalcolor.Thesematerialscanmodulatelightwithacertaindistrib
7、utionandlatticestructurecomposition.Inthepre-wavelengthorfrequency.Inaddition,PCscouldbefabri-sentstudy,opalclosest-packing(OCP)photoniccrystal(PC)catedusingdifferentmaterialsaccompaniedwithvariousisaclassofthree-dimensional(3D)PCwithcontinuouslyor
