Zinc oxide nanorod for intracellular pH sensing

被引：58

作者：

Al-Hilli, S. M. ^{[1
]}

Al-Mofarji, R. T. ^{[1
]}

Willander, M. ^{[1
]}

机构：

[1] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 17期

关键词：

Nanostructured materials;

D O I：

10.1063/1.2367662

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

pH determination is a prerequisite for many biochemical and biological processes. The authors have used two methods, namely, the electrochemical potential method and the site binding method to study the sensitivity of zinc oxide (ZnO) nanorods for the use as intracellular pH sensing device. The dimensions of these nanorods were varied with radii between 50-300 nm and lengths between 2 and 10 mu m. The ZnO nanorods showed a high sensitivity approximate to 59 mV per decade at room temperature for a pH range (1-14), assuming that the solution is water. This is expected due to the polar and nonpolar surfaces of the ZnO nanorods. (c) 2006 American Institute of Physics.

引用

页数：3

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