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时间:2020-03-26
《水稳定的镁掺杂ZnO量子点一锅法合成及细胞成像应用.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第31卷第8期无机化学学报Vo1.31No.82015年8月CHINESEJ0URNALOFIN0RGANICCHEMISTRY1644.1650水稳定的镁掺杂ZnO量子点:一锅法合成及细胞成像应用张立平,1吴山2刘丹2万永刚1刘道森3(齐齐哈尔医学院医学技术学院,齐齐哈尔161006)(2齐齐哈尔医学院医药研究中心,齐齐哈尔161006)(3齐齐哈尔大学通信与电子工程学院,齐齐哈尔161006)摘要:一锅法合成了镁掺杂的ZnO量子点,利用APTES对其进行表面包覆,并采用XRD、TEM、UV.Vis、PL和FTIR等对材料进行了表征。结果表明镁掺杂能明显增强荧光发光强度,在合适
2、的掺杂浓度(30%)下其量子产率由l1%增加到33%。通过AVrES的表面包覆使镁掺杂的ZnO量子点具有良好的水溶性和荧光稳定性,可用于MCF一7细胞成像研究。关键词:ZnO量子点;镁掺杂;APTES包覆;水稳定性中图分类号:0611.4文献标识码:A文章编号:1001-4861(2015)08—1644—07DOI:10.11862/CJIC.2015.218Water-StableMagnesium—DopedZnOQuantumDots:One-PotSynthesisandCellLabelingApplicationsZHANGLi.Ping,WUShan2LIUDan
3、zWANYong—GangLIUDao—Sen(CollegeofMedicalTechnology,QiqiharMedicalUniversity,Qiqihar,Heilongfiang161006,China)2ResearchInstituteofMedicine&Pharmacy,QiqiharMedicalUniversity,Qiqihar,Heilongfiang161006,China)(CommunicationandElectronicEngineeringInstitute,QiqiharUniversity,Qiqihar,Heilongfiang16
4、1006,China)Abstract:Aone—potmethodwasdevelopedforsynthesizingMagnesium—dopedZnOquantumdots(QDs)cappedwith(3-aminopr0py1)triethoxysilane(APTES).Theas—preparedquantumdotswerecharacterizedbyXRD,TEM,UV.Vis,FL(fluorescentspectroscopy)andFTIR.TheresultsshowthattheMg—dopedquantumdotsexhibitgreatlyen
5、hancedluminescentpropertyandtheirquantumyieldisincreasedfrom11%foran—dopedZnOQDsto33%forMg—dopedZnOQDsatMg—dopingcontentof30%.Inaddition,aqueous—stabilityisachievedbycappingtheMg—dopedZnOQDswithAPTES.TheobtainedAPTES—cappedMg-dopedZnOQDsexhibitexcellentwaterstabilityandretainvisibleemissions.
6、TheAPTES—cappedMg—dopedZnOQDsdemonstratepromisingapplicationsinMCF.7celllabeling.Keywords:ZnOquantumdots;magnesium·doped;APTES·-capped;aqueous-·stabilityResearchonphotoluminescentsemiconductorsuchasCdSeandCdTeQDswhichhavehighquantumdots(QDs)hasreceivedconsiderableatten—quantumyieldandrelative
7、lystrongphotolumines-tionsowingtotheirpotentialapplicationsasbiologicalcence(PL)emission.However,suchquantumdotsarelabelsduringthepastfewdecades【.Relevantstudiestoxictobiologicalsystems.Ahhoughvarioushavebeenfocusedon“Cdelement”containingQDsp
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