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"一块石头,两只鸟":三重联体工程金纳米集群,增强光,用于生物标志物检测

Jin Mu¹, Songrui Li¹, Qiong Jia¹

¹College of Chemistry, Jilin University, Changchun, 130012, China.

Analytica chimica acta

|October 15, 2025

概括

这项研究开发了增强的黄金纳米集群 (AuNCs),显著提高了光量子产量. 这些新型AuNCs作为一种敏感的传感器,用于检测生物样本中的Cu2+和lyszyme等疾病生物标志物.

科学领域:

纳米材料科学科学纳米材料科学
生物医学工程生物医学工程
分析化学分析化学

背景情况:

金属纳米集群 (MNCs),特别是金纳米集群 (AuNCs),是具有可调性光的有希望的纳米材料.
现有的AuNCs受到低量子产量 (QY) 和低排放强度的影响,限制了它们的应用.
为具有卓越的排放效率的高性能AuNC制定战略至关重要.

研究的目的:

为了合成具有增强光特性的AuNC.
开发一种用于检测疾病生物标志物的新型传感器,使用工程AuNCs.
研究光增强和传感的机制.

主要方法:

合成的AuNCs使用6-aza-2-thiothymine (ATT) 作为减少和保护剂.
引入了l-arginine (Arg) 和四甲基化物 (TBAB) 来抑制非辐射过渡并增强QY.
基于工程AuNCs构建了一个光传感器,用于检测Cu2+和lyszyme.

主要成果:

在TBAB@Arg/ATT-AuNCs的QY中从1.13%到60.49%实现了显著的飞跃.
开发了一种具有对Cu2+ (0-1.32 μM和1.32-2 μM) 和酶 (6-40 μM) 线性响应范围的传感器.
在人类血清和尿液样本中成功检测出Cu2+和lyszyme.

结论:

工程三联体AuNCs (TBAB@Arg/ATT-AuNCs) 显示出增强的光和稳定性.
开发的探测器显示出在真实样本中检测Cu2+和lyszyme的优秀分析性能.
这项工作为合成高性能AuNC和在生物传感中推进光增强纳米材料提供了一种新的方法.

关键词:

生物标志物检测检测生物标志物检测光增强剂的光增强剂连接体工程战略连接体工程战略在TBAB@Arg/ATT-AuNCs中使用.

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