An effective biosensor based on two-dimensional (2D) Co-ZIF-L nanosheets for sensitive electrochemical non-enzymatic glucose detection is developed, which exhibits high electrocalalytic activities towards glucose due to the ordered porous structure as well as ultrahigh specific surface area. The fabricated Co-ZIF-L nanosheets electrodes present an outstanding performance with higher sensitivity of 769.5 *10−6 A mM−1 cm−2 and lower detect limit of 90.4 nM, while the constructed 3D ZIF-67 nanoparticles electrodes show a weaker sensitivity of 697.4 *10−6 A mM−1 cm−2 and a limited detection range from 2 *10−6 M to 414 *10−6 M. Furthermore, the Co-ZIF-L based non-enzymatic glucose biosensors possess an acceptable selectivity, long-term stability as well as reproducibility. This work may offer a new approach to develop 2D ZIF nanosheets as a potential candidate in electrochemical biosensors.
@article{arxiv.2110.04552,
title = {Two-dimensional ZIF-L nanosheets as high performance non-enzymatic glucose sensor},
author = {Nana Liu and Ningyan Cheng and Chengwu Yang and Weichang Hao and Yi Du},
journal= {arXiv preprint arXiv:2110.04552},
year = {2022}
}