Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, PR China.
Nanoscale. 2019 Jun 20;11(24):11856-11863. doi: 10.1039/c9nr01791g.
Flexible enzymatic glucose sensors have been investigated extensively for health monitoring systems. However, enzymatic glucose sensors have some problems, such as poor stability and complicated immobilization procedures. Rational and controllable design of nanomaterials with a unique structure, high activity and good electrochemical performance for nonenzymatic glucose sensors is desired critically. In this paper, we synthesize cuprous oxide nanoparticles embedded in carbon spheres directly on carbonized silk fabrics (Cu2O NPs@CSs/CSF), which is further used for the fabrication of a flexible and self-supported non-enzymatic glucose sensor. The Cu2O NPs@CSs/CSF shows good electrical conductivity due to the large contact area and the stable connection between the carbonized silk fabrics and carbon spheres. We demonstrate that the as-obtained non-enzymatic glucose sensor possesses high sensitivity and good stability, indicating its potential for practical applications. This strategy diversifies the toolbox available to the field of nonenzymatic glucose sensors and holds promise for flexible electronic devices.
用于健康监测系统的柔性酶葡萄糖传感器已经得到了广泛的研究。然而，酶葡萄糖传感器存在一些问题，如稳定性差和固定化过程复杂。对于非酶葡萄糖传感器，迫切需要合理可控地设计具有独特结构、高活性和良好电化学性能的纳米材料。在本文中，我们直接在碳化丝绸织物上合成了嵌入碳球中的氧化亚铜纳米粒子（Cu2O NPs@CSs/CSF），并进一步将其用于制备柔性自支撑非酶葡萄糖传感器。由于碳化丝绸织物和碳球之间的大接触面积和稳定连接，Cu2O NPs@CSs/CSF 表现出良好的导电性。我们证明，所获得的非酶葡萄糖传感器具有高灵敏度和良好的稳定性，表明其在实际应用中的潜力。该策略为非酶葡萄糖传感器领域提供了更多的工具，并为柔性电子设备带来了希望。
