Highly sensitive label-free colorimetric sensing of nitrite based on etching of gold nanorods
Highly sensitive label-free colorimetric sensing of nitrite based on etching of gold nanorods
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DOI：
10.1039/c2an35787a
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发表时间：
2012-01-01
期刊：
影响因子：
4.2
通讯作者：
Chen, Lingxin
中科院分区：
文献类型：
--
作者：
Chen, Zhaopeng;Zhang, Zhiyang;Chen, Lingxin
开发了一种具有高灵敏度和选择性的简单比色方法，用于肉眼检测低至4.0 μ M的亚硝酸盐，该方法基于金纳米棒的蚀刻，伴随着长径比（长/宽）的形状变化和可见的颜色变化随着亚硝酸盐的增加，从蓝绿色到红色，然后到无色。
A simple colorimetric method with high sensitivity and selectivity was developed for sensing of nitrite as low as 4.0 mu M by naked eyes, which is based on etching of gold nanorods accompanied by shape changes in aspect ratios (length/width) and a visible color change from bluish green to red and then to colorless with the increase of nitrite.