高等学校化学学报

高等学校化学学报

• 研究快报 • 上一篇    下一篇

酞菁修饰的磁性二氧化硅纳米管制备及其应用

陈小兰, 邹健莉, 刘丽花, 陈夏琴, 赵婷婷   

  1. 厦门大学化学化工学院化学系, 厦门 361005
  • 收稿日期:2007-11-22 修回日期:1900-01-01 出版日期:2008-04-10 发布日期:2008-04-10
  • 通讯作者: 陈小兰

Preparation and Application of AlC4Pc-Magnetic Silica Nanotubes

CHEN Xiao-Lan*, ZOU Jian-Li, LIU Li-Hua, CHEN Xia-Qin, ZHAO Ting-Ting   

  1. Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
  • Received:2007-11-22 Revised:1900-01-01 Online:2008-04-10 Published:2008-04-10
  • Contact: CHEN Xiao-Lan

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被引次数

4

摘要： 报道了以阳极氧化铝膜(AAO)为模板, 采用两种不同方法合成外表面氨基功能化的磁性二氧化硅纳米管(Outer-NH2-magnetic silica nanotubes, outer-NH2-MSNs), 并将该纳米管与红区荧光染料四羧基铝酞菁(AlC4Pc)相结合, 制备出对pH敏感的磁性二氧化硅纳米管. 当将AlC4Pc共轭到磁性二氧化硅纳米管的外表面后, 其性质并未发生改变, 仍然保持其水溶液的荧光强度随溶液pH的增加而增强的特性, 因此可用于溶液体系中pH值的检测. 该方法制备的表面功能化的磁性二氧化硅纳米管不仅可以用于pH值的检测, 还可作为新型纳米材料的载体, 有望应用于药物运输及生物标记等多种领域中.

关键词: 磁性二氧化硅纳米管, 表面氨基功能化, 四羧基铝酞菁, pH敏感

Abstract: In this study, we report the preparation and application of the AlC4Pc-magnetic silica nanotubes(AlC4Pc-MSNs), which was synthesized via alumina template membrane method. The synthesized outer-NH2-magnetic silica nanotubes(outer-NH2-MSNs) were characterized by TEM, SEM, EDS and SQUID. Besides these, UV-Vis absorption spectra and fluorescence spectra were also recorded, which further indicate that the AlC4Pc-MSNs have the similar features with free AlC4Pc. The AlC4Pc-MSNs not only have all the advantages of silica nanotubes, but also can be easily separated from the solution by external magnetic field. On the basis of the merits mentioned above, AlC4Pc-MSNs was used for the detection of pH value. Our work herein reveals that the outer-NH2-MSNs will be a promising platform for the applications of the targeting drug delivery, DNA transfection, selective separation, catalyst carriers and so on.

Key words: Magnetic silica nanotubes, Surface-amine functionization, Tetra-carboxy aluminum phthalocyanine, pH sensitivity

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