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3D hierarchical hollow hydrangea-like Fe@ɛ-MnO microspheres with excellent electrochemical performance for dopamine and hydrogen peroxide.

08:00 EDT 11th March 2019 | BioPortfolio

Summary of "3D hierarchical hollow hydrangea-like Fe@ɛ-MnO microspheres with excellent electrochemical performance for dopamine and hydrogen peroxide."

Construction a sensor to accurately detect dopamine (DA) and hydrogen peroxide (HO) is meaningful due to their close relation to the health of organisms. In this work, one-step hydrothermal method was employed to synthesize hierarchical hollow hydrangea-like Fe@ɛ-MnO microspheres constructed by interconnected nanosheets, and the growth mechanism of the microspheres (n/n = 0.6) was also investigated in detail. The material was used to construct an electrochemical sensor for DA and HO detection with the linear range of 0.02-78 μmoL and 0.000133-5.19 mmoL, respectively. The detection limit and sensitivity for DA and HO are 5 and 50 nmoL (S/N = 3), 7034.1 and 242.6 µA m(mol·L) cm, respectively. Furthermore, the sensor was successfully applied to the detection of DA and HO in serum and urine samples, indicating a potential value of this work in the pharmaceutical and environmental fields.

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Journal Details

This article was published in the following journal.

Name: Biosensors & bioelectronics
ISSN: 1873-4235
Pages: 250-257

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