A flexible non-enzymatic glucose sensor based on copper nanoparticles anchored on laser-induced graphene

By Yue Zhang, Na Li, Xiang Yangjun, Debo Wang, Peng Zhang, Yanyan Wang, Shan Lu, R. Xu, Jiang Zhao. 2020

290 citations recorded by the source corpus.

Abstract An original flexible enzyme-free glucose amperometric biosensor based on Cu nanoparticles anchored on laser-induced graphene (Cu NPs-LIG) composite is successfully developed by a simple substrate-assisted electroless deposition (SAED) technique. The as-prepared Cu NPs-LIG sensor demonstrates an excellent glucose sensitivity of 495 μA mM−1 cm−2, ultrafast response time less than 0.5 s and the prominently low detection limit of 0.39 μM. Besides, the sensor shows extraordinary reproducibility, stability and selectivity in glucose sensing. Finally, a possible mechanism of the Cu NPs-LIG sensor for glucose sensing is proposed. Due to the simplicity preparation and performance reliability, the novel flexible Cu NPs-LIG sensor is an attractive candidate for next generation wearable and implantable non-enzymatic glucose diagnostic devices.

Subfields: Bioengineering, Electrical and Electronic Engineering, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/e204d1b3ca9ca951b97d6166bedef44226b1b497