化学
电解质
微流控
多孔性
电化学
六方晶系
碳纤维
代谢物
纳米技术
化学工程
可穿戴计算机
电化学气体传感器
电极
有机化学
结晶学
物理化学
复合材料
生物化学
材料科学
复合数
计算机科学
嵌入式系统
工程类
作者
Ziyi Mi,Youyuan Xia,Huo Dong,Yuhang Shen,Ziyou Feng,Yawen Hong,Haoyu Zhu,Binfeng Yin,Zhengping Ji,Qin Xu,Yun Shu,Yun Shu
标识
DOI:10.1021/acs.analchem.4c02950
摘要
Wearable sensors enable the noninvasive continuous analysis of biofluid, which is of great importance for healthcare monitoring. In this work, a wearable sensor was seamlessly integrated with a microfluidic chip which was prepared by a three-dimensional printing technology for noninvasive and multiplexed analysis of metabolite and electrolytes in human sweat. The microfluidic chip could enable rapid sampling of sweat, which avoids the sweat evaporation and contamination. Using a Zn metal-organic framework as a sacrificial template, the hexagonal rod-shaped porous carbon nanorod (PCN) with high porosity, a large specific surface area, and excellent conductivity was synthesized and exhibited the robust electrocatalytic ability of uric acid (UA) oxidation. Therefore, the PCN-based sensor showed high sensitivity and good selectivity of UA with a wide linear range of 10-200 μM and a low detection limit of 4.13 μM. Meanwhile, the potentiometry-based ion-selective electrode was constructed for detection of pH and K
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