Nitrogen-doped carbon foam as an efficient enzymatic biosensing platform for glucose sensing

作者：Song, Yonggui; Su, Dan; Shen, Yuan; Gong, Coucong; Song, Yonghai; Wang, Li^*

来源：Analytical Methods, 2016, 8(23): 4547-4553.

DOI：10.1039/c6ay01265e

• DIRECT ELECTRON-TRANSFER
• HIGH-PERFORMANCE ANODE
• DIRECT ELECTROCHEMISTRY
• BIO-INTERPHASE
• OXIDASE
• NANOTUBES
• GRAPHENE
• NANOPARTICLES
• SURFACE
• IMMOBILIZATION

In this work, nitrogen-doped elastic carbon foam (denoted as NECF) was constructed as the supporting matrix to load glucose oxidase (GOD) for preparing glucose biosensors. The NECF had an elastic three-dimensional (3D) interconnected network architecture and contained a large amount of nitrogen, which could greatly increase the specific surface area, electrical conductivity, mechanical stability, active sites and biocompatibility. Therefore, the NECF-based biosensor exhibited some advantages over the traditional GOD electrodes. The as-prepared glucose biosensors showed a wide linear range from 0.51 mu M to 19.00 mM with a high sensitivity of 98.46 mu A cm(-2) mM(-1) and a low detection limit of 0.17 mu M. Furthermore, the glucose biosensor exhibited high selectivity, good repeatability and reproducibility, and good stability. This study essentially offered a novel approach for the development of biosensors with excellent analytical properties.

• 出版日期2016
• 单位江西中医药大学; 江西师范大学