食品检测中基于荧光标记的DNA分子和氧化石墨烯体系检测汞离子被引量：1

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摘要本文构建了一种食品检测中氧化石墨烯/金纳米粒子(GO/AuNPs)的荧光传感平台,选用带有荧光基团的DNA适配体作为荧光探针。当DNA适配体依附到氧化石墨烯(GO)表面上,荧光产生猝灭;加入金属离子汞(Hg^(2+))后,荧光强度恢复。根据荧光强度的变化,得到Hg^(2+)的检测限为5 nM,检测范围在0-200 nM之间。此外,基于GO/AuNPs的荧光传感器可发展成为接受并检测多种目标分子的技术平台。

作者邢思琦

机构地区长春师范大学

出处《山西农经》 2017年第22期66-67,共2页 Shanxi Agricultural Economy

关键词氧化石墨烯/金纳米粒子(GO/AuNPs) 汞离子(Hg^2+) 荧光猝灭

分类号 O657.3 [理学—分析化学] TP212 [自动化与计算机技术—检测技术与自动化装置] TS207.3 [轻工技术与工程—食品科学]

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