Hierarchically porous cellulose nanofibril aerogel decorated with polypyrrole and nickel-cobalt layered double hydroxide for high-performance nonenzymatic glucose sensors

With increasing emphasis on green chemistry, biomass-based materials have attracted increased attention regarding the development of highly efficient functional materials. Herein, a new pore-rich cellulose nanofibril aerogel is utilized as a substrate to integrate highly conductive polypyrrole and a...

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Bibliographic Details
Published in:Frontiers of chemical science and engineering 2023-10, Vol.17 (10), p.1593-1607
Main Authors: Li, Xuanze, Tian, Wenyan, Wan, Caichao, Liu, Sulai, Liu, Xinyi, Su, Jiahui, Chai, Huayun, Wu, Yiqiang
Format: Article
Language:English
Subjects:
Aerogels
Blood
Cellulose
Chemistry
Chemistry and Materials Science
Cobalt
Electrodes
Functional materials
Glucose
Industrial Chemistry/Chemical Engineering
Nanotechnology
Nickel
Oxidation
Polypyrroles
Research Article
Sensors
Substrates
Synergistic effect
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Summary:With increasing emphasis on green chemistry, biomass-based materials have attracted increased attention regarding the development of highly efficient functional materials. Herein, a new pore-rich cellulose nanofibril aerogel is utilized as a substrate to integrate highly conductive polypyrrole and active nanoflower-like nickel-cobalt layered double hydroxide through in situ chemical polymerization and electrodeposition. This ternary composite can act as an effective self-supported electrode for the electrocatalytic oxidation of glucose. With the synergistic effect of three heterogeneous components, the electrode achieves outstanding glucose sensing performance, including a high sensitivity (851.4 µA·mmol −1 ·L·cm −2 ), a short response time (2.2 s), a wide linear range (two stages: 0.001–8.145 and 8.145–35.500 mmol·L −1 ), strong immunity to interference, outstanding intraelectrode and interelectrode reproducibility, a favorable toxicity resistance (Cl − ), and a good long-term stability (maintaining 86.0% of the original value after 30 d). These data are superior to those of some traditional glucose sensors using nonbiomass substrates. When determining the blood glucose level of a human serum, this electrode realizes a high recovery rate of 97.07%–98.89%, validating the potential for high-performance blood glucose sensing.
ISSN:2095-0179
2095-0187
DOI:10.1007/s11705-023-2348-2