过氧化氢
化学
水溶液
纳米颗粒
催化作用
过氧化物酶
氧化物
过氧化物
无机化学
胶体
化学工程
有机化学
酶
工程类
作者
Wei Chen,Juan Chen,Yebin Feng,Lei Hong,Qiying Chen,WU Ling-feng,Xinhua Lin,Xing‐Hua Xia
出处
期刊:Analyst
[The Royal Society of Chemistry]
日期:2012-01-01
卷期号:137 (7): 1706-1706
被引量:306
摘要
Water-soluble cupric oxide nanoparticles are fabricated via a quick-precipitation method and used as peroxidase mimetics for ultrasensitive detection of hydrogen peroxide and glucose. The water-soluble CuO nanoparticles show much higher catalytic activity than that of commercial CuO nanoparticles due to their higher affinity to hydrogen peroxide. In addition, the as-prepared CuO nanoparticles are stable over a wide range of pH and temperature. This excellent stability in the form of aqueous colloidal suspensions makes the application of the water-soluble CuO nanoparticles easier in aqueous systems. A colorimetric assay for hydrogen peroxide and glucose has been established based on the catalytic oxidation of phenol coupled with 4-amino-atipyrine by the action of hydrogen peroxide. This analytical platform not only confirms the intrinsic peroxidase-like activity of the water-soluble cupric oxide nanoparticles, but also shows its great potential applications in environmental chemistry, biotechnology and medicine.
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