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通过酶/纳米基质相互作用直接调节光发光:一种机制研究和分析应用

Yuqian Liu¹, Fangyuan Liang¹, Yuxi Shi¹

¹Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and Joint International Research Lab of Lignocellulosic Functional Materials, College of Light Industry and Food Engineering, Nanjing Forestry University, China.

Biosensors & bioelectronics

|August 6, 2025

概括

研究人员开发了酸盐功能化碳量子点 (CQDs-P),用于直接的酶相互作用. 这种新型纳米指标可以进行敏感的性酸酶 (AKP) 活性测定和有机化合物检测.

科学领域:

生物材料科学生物材料科学
分析化学分析化学
纳米技术纳米技术

背景情况:

碳量子点 (CQD) 为分析应用提供可调光发光 (PL).
目前基于CQD的酶测定依赖于间接相互作用,限制了可靠性.
直接的CQDs-酶相互作用是强大的生物感知所需的.

研究的目的:

开发功能化CQDs (CQDs-P) 以与性酸酶 (AKP) 直接相互作用.
使用CQDs-P.P.建立AKP活动的敏感分析.
使用CQDs-P/AKP系统检测有机化合物 (OPs).

主要方法:

酸盐功能化CQDs (CQDs-P) 的合成和表征.
调查CQDs-P光发光反应对AKP催化脱.
开发基于CQDs-P的生物传感器,用于AKP活动和OP检测.

主要成果:

通过AKP的CQDs-P脱化抑制了边缘到核心的电子注入,灭了PL.
获得了敏感的 AKP 活动测定,检测极限 (LOD) 为 0.07 mU/mL.
使用CQDs-P/AKP系统,证明了有机化合物 (OP) 的选择性和敏感检测.

结论:

通过酶相互作用,CQDs-P可实现直接的PL调整,提高了测试可靠性.
开发的CQDs-P/AKP系统为生物物质分析提供了一个高效和强大的平台.
这种方法有助于在血清中进行准确的AKP活性测定,并在食品样本中检测OP.

关键词:

性酸酶是一种性酸酶.碳量子点是一个量子点.光学机制的光学机制.检测有机的检测器光发光度调整调整.

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