Shape-coded silica nanotubes for biosensing

被引：62

作者：

He, Bo ^{[1
]}

Son, Sang Jun ^{[1
]}

Lee, Sang Bok ^{[1
]}

机构：

[1] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

来源：

LANGMUIR | 2006年 / 22卷 / 20期

关键词：

D O I：

10.1021/la060187t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Shape-coded silica nanotubes (SNTs) were fabricated on the basis of template synthesis as a new dispersible microarray system. The template synthesis of shape-coded SNTs begins with the fabrication of a porous alumina film that has well-defined cylindrical pores with two or more different diameter segments by multistep anodization of an aluminum substrate. Then, SNTs were fabricated with a surface sol-gel method that can control the wall thickness of SNTs on the single-nanometer level. Attractively, the difference in optical reflectance between the segmented parts of individual silica nanotube makes it very convenient to identify each nanotube and enables these shape-coded SNTs to work as coding materials for biosensing.

引用

页码：8263 / 8265

页数：3

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