期刊论文

中文

食品安全质量检测学报

2095-0381

2023

14

14

227-235

国家自然科学基金项目(21505040) 湖南省自然科学基金项目(2019JJ51004) 食品安全监测与预警湖南省重点实验室开放基金项目(2020KFJJ01) 湖南省中南林业科技大学大学生创新创业训练计划项目(S202110538032)。

本校为第一机构

目的基于金纳米团簇(aptamer@gold nanoclusters,Apt@AuNCs)/氧化石墨烯(graphene oxide,GO)的高灵敏复合荧光纳米传感器建立检测水产品中汞离子(Hg2+展开更多 目的基于金纳米团簇(aptamer@gold nanoclusters,Apt@AuNCs)/氧化石墨烯(graphene oxide,GO)的高灵敏复合荧光纳米传感器建立检测水产品中汞离子(Hg2+)的方法。方法以寡核苷酸序列为模板通过一步法快速合成具有直接特异性识别Hg2+能力的Apt@AuNCs;Apt@AuNCs作为荧光能量供体,与GO纳米片结合,形成Apt@AuNCs/GO复合荧光纳米体系,此时,Apt@AuNCs荧光被GO猝灭;Hg2+以T-Hg2+-T结构与Apt@AuNCs结合,使得Apt@AuNCs脱离GO表面,体系荧光得到恢复,...

Objective To establish highly sensitive composite fluorescent nanosensor based on aptamer@gold nanoclusters(Apt@AuNCs)/graphene oxide(GO)for the detection of mercury ions(Hg2+)in aquatic products.Methods Gold nanoclusters with the ability to recognize Hg...MORE Objective To establish highly sensitive composite fluorescent nanosensor based on aptamer@gold nanoclusters(Apt@AuNCs)/graphene oxide(GO)for the detection of mercury ions(Hg2+)in aquatic products.Methods Gold nanoclusters with the ability to recognize Hg2+directly and specifically were synthesized by a one-step method using oligonucleot...