通过电纺纳米纤维自组装制备了含多磁性内核的Fe3O4@SiO2核壳结构纳米粒.采用扫描电镜(SEM)表征了电纺纳米纤维的形貌,利用场发射扫描电镜(FE-SEM)、透射电镜(TEM)、傅里叶红外光谱仪(FT-IR)、X晶体衍射仪(XRD)和振动样品磁强计(VSM)分别对纳米粒的形貌、粒度分布、物相组成、化学成分和磁性能等进行了表征.结果显示:采用电纺纳米纤维自组装制备的Fe3O4@SiO2纳米粒为近似球形的结构,其内含有多个磁性内核；粒径分布在50 nm左右,主要物相是无定形的SiO2和晶态的Fe3O4,保持了磁性粒子的超顺磁性,是一种优良的生物磁性材料.
参考文献
| [1] | 徐雪青,沈辉,邓润坤,黎宪静.一种N-酰肌氨酸在四氧化三铁纳米颗粒表面的吸附特征[J].化学研究与应用,2003(02):187-190. |
| [2] | Torchilin V P .Drug targeting[J].European Journal of Pharmaceutical Sciences,2000,11(z2):S81. |
| [3] | Zheng Guo;Shu Bai;Yan Sun .Preparation and characterization of immobilized lipase on magnetic hydrophobic microspheres[J].Enzyme and Microbial Technology,2003(7):776-782. |
| [4] | 甘志锋,姜继森.单分散磁性纳米颗粒的制备及生物高分子在其上的组装[J].化学进展,2005(06):978-986. |
| [5] | Medeiros SF;Santos AM;Fessi H;Elaissari A .Stimuli-responsive magnetic particles for biomedical applications.[J].International Journal of Pharmaceutics,2011(1/2):139-161. |
| [6] | Stephane Mornet;Sebastien Vasseur;Fabien Grasset;Etienne Duguet .Magnetic nanoparticle design for medical diagnosis and therapy[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2004(14):2161-2175. |
| [7] | Chao Hui;Chengmin Shen;Jifa Tian .Core-shell Fe3O4@SiO2 nanoparticles synthesized with well-dispersed hydrophilic Fe3O4 seeds[J].Nanoscale,2011(2):701-705. |
| [8] | Tartaj P;González-Carre(n)o T;Serana C .Magnetic behavior of γ-Fe2O3 nanocrystals dispersed in colloidal silica particles[J].journal of Physical Chemistry B,2003,107(01):20. |
| [9] | Liu X;Ma Z;Xing J et al.Preparation and characterization of amino-silane modified superparamagnetic silica nanospheres[J].Magnetism and Materials,2004,270(1-2):1. |
| [10] | Yu, D.-G.;Branford-White, C.;Williams, G.R.;Bligh, S.W.A.;White, K.;Zhu, L.-M.;Chatterton, N.P. .Self-assembled liposomes from amphiphilic electrospun nanofibers[J].Soft matter,2011(18):8239-8247. |
| [11] | Swadeshmukul Santra;Rovelyn Tapec;Nikoleta Theodoropulou;Jon Dobson;Arthur Hebard;Weihong Tan .Synthesis and Characterization of Silica-Coated Iron Oxide Nanoparticles in Microemulsion: The Effect of Nonionic Surfactants[J].Langmuir: The ACS Journal of Surfaces and Colloids,2001(10):2900-2906. |
| [12] | St(o)ber W;Fink A;Bohn E .Controlled growth of monodisperse silica spheres in the micron size range[J].Journal of Colloid and Interface Science,1968,26:62. |
| [13] | 刘冰,王德平,黄文旵,姚爱华,井奥洪二.溶胶-凝胶法制备核壳SiO2/Fe3O4复合纳米粒子的研究[J].无机材料学报,2008(01):33-38. |
| [14] | Yu Lu;Yadong Yin;Brian T. Mayers;Younan Xia .Modifying the Surface Properties of Superparamagnetic Iron Oxide Nanoparticles through A Sol-Gel Approach[J].Nano letters,2002(3):183-186. |
| [15] | Deng YH;Wang CC;Hu JH;Yang WL;Fu SK .Investigation of formation of silica-coated magnetite nanoparticles via sol-gel approach[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2005(1/3):87-93. |
| [16] | Lou M Y;Wang D P;Huang W H et al.Effect of silanecoupleing agents on synthesis and character of core-shell SiO2 magnetic microspheres[J].Journal of Magnetism and Magnetic Materials,2006,305(01):83. |
| [17] | 丁建芳,姜继森.核壳结构二氧化硅/磁性纳米粒子的制备及应用[J].材料导报,2006(z2):201-205. |
| [18] | Young Soo Kang;Subhash Risbud;John F. Rabolt;Pieter Stroeve .Synthesis and Characterization of Nanometer-Size Fe_3O_4 and γ-Fe_2O_3 Particles[J].Chemistry of Materials,1996(9):2209-2211. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%