期刊
FOOD CHEMISTRY
卷 292, 期 -, 页码 98-105出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2019.04.050
关键词
Aptasensor; Monitoring; Nitrogen doped graphene quantum dots; Self-enhanced electrochemiluminescence; Zearalenone
资金
- National Natural Science Foundation of China [21675065, 61801195]
- Six Categories Talent Peak of Jiangsu Province [NY-011]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions [2014-37]
- Graduate Research Innovation Projects of Jiangsu Province [KYCX18_2264]
- 333 Project [BRA2017390]
Accurate and early diagnosis of mycotoxin is particularly significant to the food and agricultural product safety. In the present work, a sensitive and effective monitoring method for zearalenone (ZEN) was exploited based on a novel self-enhanced electrochemiluminescence (ECL) aptasensor. The self-enhanced lumonophore was compounded by electrostatically combining amine-functionalized Ru(bpy)(3)(2+) -doped silica nanoparticles (NH2-Ru@SiO2 NPs) and nitrogen doped graphene quantum dots (NGQDs) together. Since the emitter and co-reactant simultaneously existed in the same nanoparticle, shortened electron-transfer distance and decreased energy loss was obtained. Therefore, self-enhanced ECL aptasensor based on the novel complex expressed the widest linear range of 10 fg mL(-1)-10 ng mL(-1) and the lowest detection limit of 1 fg mL(-1) for ZEN detection. More importantly, ZEN produced during the mildew process of corn flour was monitored by the developed aptasensor, which exhibited superior determination and potential application in real samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据