基于分子印制聚合物的电化学传感器的设计,用于在食品样本中环保,有选择性和敏感地确定林氏素
Fatma Budak1, Ahmet Cetinkaya2, Mehmet Altay Unal3
1Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, Turkey; Ankara University, Graduate School of Health Sciences, Ankara, Turkey.
Food chemistry
|May 28, 2025
概括
开发了一种新的电化学传感器,用于检测狭谱抗生素林氏素 (LIN). 这种高度敏感和选择性的传感器,利用金纳米粒子和分子印记聚合物,成功地检测了各种食品样本中的LIN,证明了其实际适用性.
科学领域:
- 电化学 电化学 电化学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 林氏素 (LIN) 是一种具有重要的窄谱抗生素,具有显著的抗菌特性.
- 开发灵敏和选择性的电化学传感器对于准确的LIN检测至关重要.
- 分子印记聚合物 (MIP) 提供针对特定分析物的定制识别站点.
研究的目的:
- 制造一种基于MIP的新型电化学传感器,用于灵敏和选择性检测林氏素 (LIN).
- 使用金纳米粒子 (AuNPs) 和电聚合 (EP) 来提高传感器性能.
- 为了评估传感器的性能,选择性和在现实世界样本中的适用性.
主要方法:
- 在玻璃碳电极 (GCE) 上制造基于MIP的传感器,使用3-氨基酸 (3-APBA) 通过电聚合.
- 加入金纳米颗粒 (AuNPs) 来增加活性表面积和多孔性.
- 使用电化学阻抗光谱 (EIS) 和循环电量计 (CV) 进行电化学表征;通过扫描电子显微镜 (SEM) 进行形态分析;用于分子水平评估的量子化学计算.
主要成果:
- 开发的LIN/AuNPs/ANI@3-APBA/MIP/GCE传感器在DPV和EIS方法中表现出1.0 × 10−121.0 × 10−11 M的宽动态线性范围.
- 传感器表现出优异的选择性和稳定性,在干扰剂的存在下恢复率高 (97.35109.9%).
- 在牛奶,果汁和汁样本中成功确定了LIN,证实了其实际适用性.
结论:
- 拟议的基于MIP的电化学传感器为LIN检测提供了高灵敏度,一致性,选择性和可重复性.
- 整合AuNPs和MIP技术显著提高了传感器性能.
- 传感器在真实食品样本中的成功应用凸显了其用于实际LIN监测的潜力.
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