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Updated: Jul 20, 2026

Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules

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Published on: June 1, 2011

基于重复DNA毛针自我折叠和催化延伸的均质电化学蛋白质测定

Hua Chai¹, Jianyang Lu², Xiaoshi Liu²

¹Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, China; University of Science and Technology of China, Hefei, 230026, China.

Biosensors & bioelectronics

|October 28, 2025

概括

我们开发了一种新的电化学传感器,用于使用自启动放大策略的片内核酶1 (FEN1). 这种敏感和特定的测定使生物医学研究和临床诊断能够准确检测FEN1.

科学领域:

生物化学生物化学
分析化学分析化学
生物技术是生物技术.

背景情况:

片内核酶1 (FEN1) 对于基因组稳定性至关重要,是潜在的生物标志物和治疗点.
对于某些应用,现有的FEN1测定可能缺乏灵敏度或特异性.

研究的目的:

开发一种新的同质电化学方法,用于敏感和特定的FEN1检测.
建立一个多功能传感平台,用于在各种生物样本中进行FEN1分析.

主要方法:

一个带有集成反应和检测室的丝网印刷电极的制造.
设计一个子结构的DNA探头,用于由FEN1.1触发的自启动放大.
通过放大DNA结合体形成和间接结合器结合,通过电化学检测FEN1活性.

主要成果:

开发的方法实现了FEN1.1的低检测极限 (0.0114 mU).
对干扰蛋白质的高特异性得到证明.
在分析抑制剂,细胞样本和临床样本方面的成功应用.

结论:

同质电化学方法为FEN1检测提供了一个敏感,特定和有前途的平台.
这种测试在生物医学研究,临床诊断和药物查中具有潜在的应用.

关键词:

DNA发针自折叠式自折叠式片内核酶1 片内核酶1 一致的电化学同质.聚合方式的聚合.自动启动的放大器.

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