基于Fe,Ce-CDs的双信号色度传感器,用于在烟草中超敏感检测酸盐
Dongling Meng1, Zhiyan Chen1, Zhibin Chen1
1Technology Centre of China Tobacco Guangxi Industrial Co., LTD, Nanning, 530001, China.
Mikrochimica acta
|September 10, 2025
概括
铁联合的碳点表现出类似过氧化酶的活性,使得酸盐的敏感检测成为可能. 这种双信号色度纳米传感器可以在烟草样本中准确量化酸盐.
科学领域:
- 纳米材料科学 科学 纳米材料科学
- 分析化学 分析化学
- 生物医学工程 生物医学工程
背景情况:
- 碳点 (CD) 是多功能纳米材料,具有独特的光学和电子特性.
- 纳米材料的氧化酶类 (POD) 活性被用于生物传感应用.
- 化物 (NO2-) 是生物和环境样本中重要的分析物,但其检测可能具有挑战性.
研究的目的:
- 为了合成和表征铁联合化碳点 (Fe,Ce-CDs).
- 开发一种双信号色度纳米传感器,用于灵敏,准确地检测酸盐.
- 在现实世界样本分析中评估传感器的性能,特别是烟草.
主要方法:
- 一步式水热合成Fe,Ce-CDs使用葡萄酸和L-酸.
- 利用Fe,Ce-CDs的POD类活性来催化TMB的氧化.
- 开发基于Fe,Ce-CDs + NO2- + TMB + H2O2和oxTMB + NO2-的两个检测系统,用于双信号读取.
主要成果:
- Fe,Ce-CDs表现出极好的POD类活动.
- 开发的纳米传感器实现了低酸盐 (0.272μg/L和0.019 mg/L) 的检测极限.
- 该传感器在应用于烟草样本分析时显示出高精度和可行性,恢复率从91.20%到110.61%.
结论:
- Fe,Ce-CD是色度测量感应的有效催化剂.
- 双信号色度纳米传感器为化物检测提供了一种可靠的方法.
- 提出的方法对于分析烟草等复杂矩阵中的酸盐是准确和可行的.
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