基于可调节的金属有机框架的双模式传感策略,用于检测Hg2的活性点
Jiaqi Xu1, Yuanke Zhang1, Xiaoguang Zhu1
1Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
Journal of hazardous materials
|January 7, 2024
概括
本研究介绍了一种使用金属有机框架 (Co-MOF) 和胺的新型重金属检测方法. 这种用户友好的系统可以在水样中灵敏地检测离子 (Hg2+).
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
背景情况:
- 重金属污染,特别是 (Hg2+),带来了重大的环境和健康风险.
- 开发便携和用户友好的重金属检测方法是一个关键的挑战.
- 现有的基于纳米酶的传感器往往缺乏所需的灵敏度或便携性.
研究的目的:
- 开发一种双模式传感平台,用于敏感和选择性检测Hg2+.
- 使用可调节的金属有机框架 (Co-MOF) 与胺 (T) 作为识别元素.
- 使用个人葡萄糖计 (PGM) 创建一个用户可交付的重金属检测策略.
主要方法:
- 构建可调节的Co-MOF活动站点策略,用于Hg2+传感.
- 开发了两种传感模式:用PGM进行色度和电化学测定.
- 使用提氨酸 (T) 作为替代T-Hg2+-T结合的DNA体.
- 使用密度函数理论 (DFT) 计算来分析相互作用机制.
主要成果:
- 基于Co-MOF的平台实现了Hg2+的低检测极限 (LOD):0.5 nM (色度) 和3.69 nM (PGM).
- 传感平台在真实水样 (自来水和湖水) 中表现出色,具有高回收率和选择性.
- 该方法显示了通过修改识别元件来检测其他重金属的潜力,例如银离子 (Ag+).
结论:
- 开发的双模式传感平台为Hg2+检测提供了一种简单,便携和用户友好的方法.
- 这一策略超过了许多现有的基于纳米酶的Hg2+传感器的性能.
- 可调节的Co-MOF和基于核酸的识别为环境监测提供了一个多功能平台.
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