化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (4) : 59-62.

新材料与新技术

层层自组装法制备碳包覆的Fe₃O₄碳量子点磁性荧光双功能材料

^1,2*

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Preparation of bifuntional magnetic fluorescent composite Fe₃O₄@C@CQD_S by layer-by-layer self-assembly method

Wang Shengnan¹, Zhuang Hong², Liu Yongjian^1,2

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文章历史 +

Received		Published
2016-12-26		2018-04-20
Issue Date	Revised Date
2018-05-17	2016-12-26

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摘要

通过化学共沉淀法制备Fe₃O₄磁性纳米颗粒,在其表面包覆碳层,形成Fe₃O₄@C磁性微球,采用层层自组装法将聚二烯丙基二甲基氯化铵(PDDA)修饰到微球表面。将该微球与表面富含羧基的碳量子点(CQD_S)连接,得到碳包覆的Fe₃O₄@CQD_S(Fe₃O₄@C@CQD_S)磁性荧光双功能复合微球。通过X射线衍射(XRD)、振动样品磁强计(VSM)、扫描电子显微镜(SEM)、荧光分光光度计和荧光显微镜等表征手段对该复合微球进行结构表征以及性能测试。结果表明:复合微球粒径约为50nm,饱和磁强度为23.39emu/g,这种性能优异的磁性荧光双功能复合微球有望在生命科学领域得到广泛应用。

Abstract

Fe₃O₄ magnetic nanoparticles were prepared by chemical coprecipitation method,which were coated by carbon,and Fe₃O₄@C magnetic microspheres were obtained.Then the microspheres were modified with polydiallyldimethyl (PDDA) by layer-by-layer self-assembly technique.Fe₃O₄@C@CQD_S magnetic fluorescent bifunctional composite microspheres were successfully prepared by connecting the microspheres with the carboxyl-rich carbon spots.The composite microspheres were characterized by X-ray diffraction (XRD),vibrating sample magnetometer (VSM),scanning electron microscope (SEM),fluorescence spectrophotometer,fluorescence microscope and so on.The results showed that the size of microspheres was about 50nm,the saturation magnetic intensity was 23.39emu/g.It was expected that the microspheres will be widely used in life sciences application.

关键词

Fe₃O₄磁性纳米颗粒 / 层层自组装法 / 碳量子点 / 双功能复合微球

Key words

Fe₃O₄ magnetic nanoparticle / layer-by-layer self-assembly method / carbon quantum dot / bifunctional composite microsphere

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层层自组装法制备碳包覆的Fe₃O₄碳量子点磁性荧光双功能材料[J]. 化工新型材料, 2018, 46(4): 59-62 DOI:

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] He H,Gao C.Supraparamagnetic,conductive,and processable multifunctional graphene nanosheets coated with high-density Fe₃O₄ nanoparticles[J].ACS Applied Materials & Interfaces,2010,2(11):3201-3210.
[2] Li X,Huang X,Liu D,et al.Synthesis of 3D hierarchical Fe₃O₄/graphene composites with high lithium storage capacity and for controlled drug delivery[J].The Journal of Physical Chemistry C,2011,115(44):21567-21573.
[3] Hu C,Xia T,Gong Y,et al.Emulsifier-free emulsion polymerized poly(MMA-HEMA-Eu(AA)3Phen)/Fe₃O₄ magnetic fluorescent bifunctional nanospheres for magnetic resonance and optical imaging[J].Chinese Journal of Polymer Science,2016,34(2):135-146.
[4] Xia D L,Chen Y P,Chen C,et al.Comparative study of biosafety,DNA,and chromosome damage of different-materials-modified Fe₃O₄ in rats[J].Applied Biochemistry and Biotechnology,2015,177(5):1069-1082.
[5] Gu W,Deng X,Gu X,et al.Stabilized,superparamagnetic functionalized graphene/Fe₃O₄@Au nanocomposites for a magnetically-controlled solid-state electrochemiluminescence biosensing application[J].Analytical Chemistry,2015,87(3):1876-1881.
[6] Ghaemi M,Absalan G.Study on the adsorption of DNA on Fe₃O₄,nanoparticles and on ionic liquid-modified Fe₃O₄,nanoparticles[J].Microchimica Acta,2014,181(1):45-53.
[7] Yang H,Hao L,Du C,et al.A systematic examination of the morphology of hydroxyapatite in the presence of citrate[J].Rsc Advances,2013,3(45):23184-23189.
[8] Lim S Y,Shen W,Gao Z.Carbon quantum dots and their applications[J].Chemical Society Reviews,2015,44(1):362-381.
[9] Gosso S,Gavello D,Giachello C N,et al.The effect of CdSe-ZnS quantum dots on calcium currents and catecholamine secretion in mouse chromaffin cells[J].Biomaterials,2011,32(34):9040-9050.
[10] Ahmed E,Morton S W,Hammond P T,et al.Fluorescent multiblock π-conjugated polymer nanoparticles for in vivo tumor targeting[J].Advanced Materials,2013,25(32):4504-4510.
[11] Lecroy G E,Sonkar S K,Yang F,et al.Toward structurally defined carbon dots as ultracompact fluorescent probes[J].Acs Nano,2014,8(5):4522-4529.
[12] Ding C,Zhu A,Tian Y.Functional surface engineering of C-dots for fluorescent biosensing and in vivo bioimaging[J].Accounts of Chemical Research,2013,47(1):20-30.
[13] Qi D,Zhang H,Tang J,et al.Facile Synthesis of mercaptophenylboronic acid-functionalized core shell structure Fe₃O₄@C@Au magnetic microspheres for selective enrichment of glycopeptides and glycoproteins[J].Journal of Physical Chemistry C,2010,114(20):9221-9226.
[14] Demir C R,Titirici M M,Antonietti M,et al.Hydrothermal carbon spheres containing silicon nanoparticles:synthesis and lithium storage performance[J].Chemical Communications,2008,32(32):3759-3761.
[15] Dantas T L P,Mendonça V P,José H J,et al.Treatment of textile wastewater by heterogeneous fenton process using a new composite Fe₂O₃/carbon[J].Chemical Engineering Journal,2006,118(1-2):77-82.
[16] Wang H,Sun L,Li Y,et al.Layer-by-layer assembled Fe₃O₄@C@CdTe core/shell microspheres as separable luminescent probe for sensitive sensing of Cu²⁺ ions[J].Langmuir,2011,27(18):11609-11615.
[17] 顾银君,王秀玲,陈恭,等.氨基硅烷化磁性纳米粒子的制备与表[J].苏州科技学院学报(自然科学版),2012,29(1):42-46.
[18] Li F,Liu C,Yang J,et al.Mg/N double doping strategy to fabricate extremely high luminescent carbon dots for bioimaging[J].Rsc Advances,2014,4(7):3201-3205.
[19] Hodlur R M,Rabinal M K.A new selenium precursor for the aqueous synthesis of luminescent CdSe quantum dots[J].Chemical Engineering Journal,2014,244(1):82-88.