Open AccessCu 2 O hollow microspheres as electrode materials for non‐enzymatic electrochemical detection of glucose
Author(s) -
Zhang Fan,
Wang Yihui,
Wu Xiujuan,
Zhang Hao,
Huang Shan,
Yang Ying,
Xie Adi,
Wang Mingyan
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2020.0030
Subject(s) - detection limit , selectivity , electrode , hydrothermal circulation , electrochemical gas sensor , electrochemistry , biosensor , materials science , microsphere , linear range , chemistry , nanotechnology , chromatography , chemical engineering , biochemistry , catalysis , engineering
An enzyme‐free glucose electrochemical sensor with high sensitivity and selectivity is highly attractive. In this work, an enzyme‐free glucose sensor with Cu 2 O hollow microspheres (Cu 2 O HMs) was prepared via hydrothermal method. The glucose sensor constructed by the prepared Cu 2 O HM structure exhibited a low detection limit of 0.13 μM, a high sensitivity of 277.1 μA/mM cm 2 , and the wide linear ranges of 0.05–1.5 and 1.5–6.0 mM. Furthermore, anti‐interference tests indicated that the prepared sensor exhibited good selectivity for glucose and practical application in human serum. The Cu 2 O sensor has great application potential in the development of enzyme‐free glucose sensor.