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基于Ce4+的氧化酶模仿活性和静电控制的双模式上转换传感器,用于检测具有不同电荷的生物点

Gaoya Hu¹, Daoping Yue², Weishuan Chen¹

¹College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.

|June 12, 2024

概括

一个新的双模式生物传感器准确地检测血清中的肝素,原胺和素. 这一进步为监测这些关键生物标志物提供了一种敏感的方法,有助于评估身体功能.

科学领域:

生物医学工程生物医学工程
分析化学分析化学
生物化学生物化学

背景情况:

肝素,原胺和素是参与凝血和消化过程的关键生物标志物.
它们的相互作用和波动可以表明生理功能障碍.
现有的监测这些分析物的方法缺乏所需的速度,灵敏度或选择性.

研究的目的:

开发一种快速,灵敏和选择性的双模式生物传感器,用于同时检测肝素,原胺和素.
为了利用具有氧化酶模拟活性的上转化纳米粒子 (UCNPs),提高传感能力.
建立一个新的传感战略,对差异电荷的生物分子.

主要方法:

制造一种双模式 (光和色度) 的UCNP生物传感器.
利用Ce⁴⁺离子的氧化酶模仿活性.
采用静电相互作用用于分析物捕获和信号生成.
使用血清样本进行验证.

主要成果:

实现了对肝素 (LOD: 16 ng/mL),质氨酸 (LOD: 87 ng/mL) 和素 (LOD: 31 ng/mL) 的敏感检测.
生物传感器有效地消除了背景自光,提高了准确性.
展示了一种用于检测具有不同电荷的生物分子的新型传感途径.

结论:

开发的UCNP生物传感器提供了一个高度敏感和选择性的平台,用于监测肝素,原胺和素.
这种分析为临床诊断和生理监测提供了一个有前途的工具.
双模式检测和自流光消除提高了可靠性和准确性.

关键词:

静电控制器静电控制器肝素是一种肝素.蛋白质胺是一种原蛋白.这是一种素, Trypsin.向上转换纳米粒子

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