基于铁素的Zr/Ni双金属有机框架用于放射测量吸收器传感器,可有效检测多巴胺
Xiaoyan He1,2, Zhiqiang Wang1,2, Jing Li1,2
1Key Laboratory of Water Security and Water Environment Protection in Plateau Intersection, Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
Analytical chemistry
|January 13, 2026
概括
这项研究引入了一种新的电化学生物传感器,用于敏感的多巴胺检测,这对于诊断神经疾病至关重要. 用MXene增强的传感器为准确的结果提供了更好的导电性和稳定性.
科学领域:
- 电化学 电化学 电化学
- 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:
- 准确的多巴胺检测对于诊断神经疾病至关重要.
- 现有的电化学传感器面临着灵敏度和信号稳定性的挑战.
- 金属有机框架 (MOF) 具有潜力,但往往由于导电性差而受到损害.
研究的目的:
- 为多巴胺 (DA) 检测开发一种高度敏感的比率型电化学生物传感器.
- 为了提高传感器性能,使用MXene增强的双金属导电MOF.
- 提高复杂生物样本中检测DA的选择性和稳定性.
主要方法:
- 使用MXene增强的双金属导电MOF (ZrNi-Fc MOF) 制造一个比率类型的电化学生物传感器.
- 加入1.1'-ferrocenedicarboxylic酸作为一个连接体,以改善MOF导电性和传感器稳定性.
- 通过Zr-O-P键对酸盐修饰的DA体对MOF表面进行共价定,用于选择性DA识别.
- 使用MXenes作为装载Apt/ZrNi-Fc的平台,以利用它们的大表面积,导电性和生物相容性.
主要成果:
- 开发的传感器显示了DA的广泛检测范围,从0.1到70μM.
- 达到了多巴胺0.07μM的低检测极限 (LOD).
- 在实践血清样本测试中表现出色,恢复率高 (98.67-100.5%) 和相对标准偏差低 (1.8-4.8%).
结论:
- 基于MXene增强的ZrNi-Fc MOF生物传感器为敏感和稳定的多巴胺检测提供了一种新有效的策略.
- 这种方法显著提高了比率型电化学生物传感器的信号稳定性和灵敏度.
- 该传感器在血清等复杂矩阵中为多巴胺检测提供可靠的结果,有助于神经疾病诊断.
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