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结内核酶驱动的DNA纳米组件能够实现交叉验证的三模生物传感,具有超高可靠性

Xu Li¹, Yashu Wei², Peiyuan Li¹

¹Key Laboratory of Optic-electric Chemo/Biosensing and Molecular Recognition(Guangxi Minzu University), Education Department of Guangxi Zhuang Autonomous Region, School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning, 530006, China.

Biosensors & bioelectronics

|December 26, 2025

概括

这项研究引入了一种新的三模体生物传感平台,使用nicking内核酶和滚动圆放大来提高可靠性. 它集成了电化学,色度和光热检测,用于准确的生物标志物分析.

科学领域:

生物分子工程生物分子工程
纳米材料科学科学纳米材料科学
分析化学分析化学

背景情况:

目前的生物传感器由于单信号输出而存在可靠性问题,导致假阳性和不良反干扰.
环境适应性和复杂矩阵适用性的局限性阻碍了现有的生物传感平台的性能.

研究的目的:

开发一个高度可靠和适应性的三模生物传感平台,克服单信号输出限制.
集成电化学 (EC),色度测量 (CL) 和光热 (PTM) 检测模式,以进行可靠的生物标记物量化.
为下一代生物传感提供一个可通用的框架,具有多模式交叉验证.

主要方法:

用于信号放大和DNA纳米组装的利用结内核酶驱动的滚动圆放大 (RCA).
设计了一种新的AuNPs/Zr-MOF/GDY纳米复合材料,以改善电子转移和表面积.
实现了DNAzyme步行器驱动的级联反应和三重模式输出,以提高灵敏度和验证.

主要成果:

实现了极低检测极限的异常CD17检测: 31.7 aM (EC),11.2 fM (CL) 和10.3 fM (PTM).
对于CD17来说,已经证明了从0.0001到100,000 pM的广泛线性检测范围.
验证了成功的人类血清分析,恢复率为97.7-106.3%,证实了血病查的临床实用性.

结论:

开发的三模生物传感平台为生物传感中的可靠性挑战提供了基本的解决方案.
多模式交叉验证,酶驱动放大和强大的纳米架构使可适应的生物标志物检测成为可能.
这项工作为设计下一代生物传感器提供了可通用的框架,其性能和适应性得到了改进.

关键词:

经过交叉验证的三合体生物传感.在DNA纳米组件中.的酶的酶是指的酶.基于智能手机的检测

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