Wearable Noninvasive Glucose Sensor Based on CuxO NFs/Cu NPs Nanocomposites

Author:

Yu Zhipeng,Wu Huan,Xu Zhongshuang,Yang Zhimao,Lv JianORCID,Kong Chuncai

Abstract

Designing highly active material to fabricate a high-performance noninvasive wearable glucose sensor was of great importance for diabetes monitoring. In this work, we developed CuxO nanoflakes (NFs)/Cu nanoparticles (NPs) nanocomposites to serve as the sensing materials for noninvasive sweat-based wearable glucose sensors. We involve CuCl2 to enhance the oxidation of Cu NPs to generate Cu2O/CuO NFs on the surface. Due to more active sites endowed by the CuxO NFs, the as-prepared sample exhibited high sensitivity (779 μA mM−1 cm−2) for noninvasive wearable sweat sensing. Combined with a low detection limit (79.1 nM), high selectivity and the durability of bending and twisting, the CuxO NFs/Cu NPs-based sensor can detect the glucose level change of sweat in daily life. Such a high-performance wearable sensor fabricated by a convenient method provides a facile way to design copper oxide nanomaterials for noninvasive wearable glucose sensors.

Funder

National Natural Science Foundation of China

Shccig-Qinling Program

National Natural Science Foundation of Shaanxi Province

Lanzhou University-Jinchuan Group Chemical Co., Ltd. Chemical Environmental Protection Industry Joint Laboratory

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry

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