简介：Thewater-solubleconjugatedpolyelectrolyte,poly[3-(1′-ethyloxy-2′-N-methylimidazole)thiophene](PEOIMT),wasprepared.Itsphotophysicalandelectrochemicalproperties,andresponsecharacteristicstotheexternalcondition(eg,temperatureresponse,solventresponseandpHresponse),wereinvestigated.TheresultsshowthePEOIMTbelongstotheorganicsemiconductor.TheinteractionbetweenthePEOIMTandthebovineserumalbumin(BSA)wasinvestigatedusingUV-visspectroscopy.ItwasfoundthatthePEOIMTcouldinteractwiththeBSA.ThePEOIMTcanbeusedasabiosensortodetecttheBSA.

简介：ThecomparisonoftraditionalroutetothesimplesynthesisofCdSesemiconductornanocrystals,withthehydrothermalroute,wherethereactiontemperaturecanbereachedat220℃,waspresentedinthispaper.Theopticalpropertiesofthewater-solubleCdSequantumdotsfromthehydrothermalandtraditionalwerecharacterizedbyUV-visabsorptionspectra,photoluminescence(PL)spectraandHRTEMtechniques.TheHRTEMresultsshowthatwiththeincreaseofthereactiontemperature,thenaocrystaldefectsdecreased.TheUV-visabsorptionpeakmovedtolongwave-lengthwiththeincreaseofreactiontemperature.Thephotoluminescence(PL)spectrashowthatthewavelengthofthebrightpoint,thePLquantumyield(QY)increasedwhenthenanocrystaldefectsdecreased.Theopticalpropertydataconfirmthathydrothermalrouterisapreferablemethodtotraditionalrouteforpreparingwater-solubleCdSequantumdots.