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基于多功能Cu-CDs的三重排放比度计光和色度计双模式感应谷氨

Shiwen Wu¹, Yaxin Li¹, Shuqi Wang¹

¹School of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China; Laboratory of Functional Polymers, School of Materials Science and Engineering, Linyi University, Linyi 276005, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|August 13, 2025

概括

本研究介绍了一种使用铜化碳点 (Cu-CDs) 检测谷氨 (GSH) 的双模式检测方法. 该方法提供敏感的光和色度检测食品样本中的GSH.

科学领域:

纳米材料科学科学纳米材料科学
分析化学分析化学
生物化学生物化学

背景情况:

谷氨 (GSH) 是生物系统中至关重要的抗氧化剂.
精确检测GSH对于健康和食品安全至关重要.
现有的检测方法可能缺乏灵敏度或特异性.

研究的目的:

开发一种新的双模式 (光和色度) 检测方法,用于GSH.
使用多功能铜碳点 (Cu-CDs) 来增强检测能力.
在食品等复杂矩阵中实现GSH的敏感和选择性量化.

主要方法:

合成具有双重排放和催化活动的多功能铜碳点 (Cu-CDs).
基于内部波器效应和抑制产品形成的比度光试验的开发.
建立了利用Cu-CDs和GSH介导的减少的催化活性进行色度测试的方法.
方法的验证使用刺的水果和蔬菜样本.

主要成果:

立方体CD显示双发射 (465nm和650nm) 和氧化酶/氧化酶类活动.
对GSH的比度光检测实现了1.13μM的检测极限 (LOD).
对GSH的色度检测产生了3.78μM的LOD.
在食品样本中获得了高恢复率 (89.67-106.32%) 和低相对标准偏差 (RSDs ≤1.2%) .

结论:

开发的三重排放系统可使灵敏和选择性的双模式检测GSH.
立方体CD作为有效的多功能纳米材料用于生物传感应用.
该方法证明了在食品矩阵中用于GSH测定的实际适用性.

关键词:

双排放的碳点是双排放的它是双模式的.葡萄糖氨酸 (Glutathione) 是一种氧化酶类活性类似的活性.类似过氧酶的活性.

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