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在Ni/Pt双原子系统中的协同催化用于动态汗液代谢物跟踪

Yong Zhang¹, Cuncun Wang¹, Changpeng Jin¹

¹Key Laboratory for Biological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.

Analytical chemistry

|July 31, 2025

概括

这项研究引入了一种新的-双单原子催化剂 (NiSA/CN/Pt),用于增强可穿戴电化学传感器. 这种催化剂改善了健康应用的汗水中的尿酸和氨酸实时监测.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

可穿戴的电化学传感器对于实时生理监测至关重要.
单原子催化剂 (SAC) 在性能方面经常面临限制.
开发先进的催化剂是提高传感器能力的关键.

研究的目的:

为了合成一种新的-双单原子催化剂 (NiSA/CN/Pt).
增强用于检测尿酸 (UA) 和氨酸 (Tyr) 的电催化活性.
开发一种高性能传感器,用于实时的汗水生物标志物分析.

主要方法:

使用高温化和光化学固定合成NiSA/CN/Pt.
催化剂的电化学表征.
密度函数理论 (DFT) 计算以了解催化机制.
在汗水中制造和测试用于UA和Tyr检测的传感器补丁.

主要成果:

Ni-N4和Pt-N4位点之间的协同相互作用显著提高了电催化活性.
实现了 500 nM 到 2 mM (UA) 的线性范围,检测极限为 0.20 μM.
实现了5μM至1μM (轮胎) 的线性范围,检测极限为4.85μM.
证明了高灵敏度和与商业套件的良好一致性 (RSD <4%).

结论:

NiSA/CN/Pt在UA和Tyr检测方面表现出卓越的电催化性能.
开发的传感器可以准确地实时监测汗液代谢产物.
这项工作为先进的可穿戴健康监测系统提供了基础.

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Catalysis

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