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基于关闭信号的双模式传感平台,用于在食品样本中超敏感检测抗生素

Fanglei Liu¹, Xiaolin Xu¹, Liuhui Zhu¹

¹School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, China.

|November 23, 2024

概括

这项研究开发了一种使用光电化学 (PEC) 和表面增强拉曼散射 (SERS) 的双模式传感器,用于高度敏感的卡纳米辛检测. 该平台在像生牛奶这样的复杂样本中显示出抗生素检测的巨大前景.

科学领域:

分析化学分析化学
材料科学材料科学材料科学
生物技术是生物技术.

背景情况:

抗生素检测对于食品安全和公共健康至关重要.
现有的抗生素检测方法往往缺乏灵敏度或效率.
需要新的传感平台来准确和快速地分析抗生素残留物.

研究的目的:

开发一个灵敏的双模式传感平台,用于kanamycin检测.
整合光电化学 (PEC) 和表面增强拉曼散射 (SERS) 技术.
使用基于aptamer的信号转换策略来增强检测.

主要方法:

一个C3N4/MXene-黄金纳米粒子异质连接的制造.
集成PEC和SERS检测模式.
应用一个aptamer信号转换策略用于kanamycin检测.

主要成果:

实现了对10^-3至10^5nM (PEC) 和10^-2至10^4nM (SERS) 的线性范围的敏感卡纳米辛检测.
获得了0.53 pM (PEC) 和4.8 pM (SERS) 的低检测极限.
在原牛奶样本中检测卡纳米辛的表现非常出色.

结论:

开发的双模式PEC-SERS平台为kanamycin检测提供了高灵敏度和精度.
该平台显示出在复杂矩阵中检测各种分析物的巨大潜力.
这种方法为确保食品安全和监测抗生素残留物提供了一种多功能工具.

关键词:

抗生素抗生素是一种抗生素.卡纳米辛是一种光电化学的光电化学.在表面增强的拉曼散射中.

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