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Sensors (Basel). 2016 Feb 18;16(2):243. doi: 10.3390/s16020243.

One-Pot Hydrothermal Synthesis of Magnetite Prussian Blue Nano-Composites and Their Application to Fabricate Glucose Biosensor.

Author information

1
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China. ezzoezzo11@yahoo.com.
2
Food Technology Department, Nyala Technological College, Nyala P. O. Box 155, Sudan. ezzoezzo11@yahoo.com.
3
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China. snding@seu.edu.cn.

Abstract

In this work, we presented a simple method to synthesize magnetite Prussian blue nano-composites (Fe₃O₄-PB) through one-pot hydrothermal process. Subsequently, the obtained nano-composites were used to fabricate a facile and effective glucose biosensor. The obtained nanoparticles were characterized using transmission electron microscopy, scanning electron microscopy, Fourier-transform infrared spectroscopy, UV-vis absorbance spectroscopy, cyclic voltammetry and chronoamperometry. The resultant Fe₃O₄-PB nanocomposites have magnetic properties which could easily controlled by an external magnetic field and the electro-catalysis of hydrogen peroxide. Thus, a glucose biosensor based on Fe₃O₄-PB was successfully fabricated. The biosensor showed super-electrochemical properties toward glucose detection exhibiting fast response time within 3 to 4 s, low detection limit of 0.5 µM and wide linear range from 5 µM to 1.2 mM with sensitivity of 32 µA∙mM(-1)∙cm(-2) and good long-term stability.

KEYWORDS:

biosensor; magnetite Prussian blue nano-composites; one-pot synthesis

PMID:
26901204
PMCID:
PMC4801619
DOI:
10.3390/s16020243
[Indexed for MEDLINE]
Free PMC Article

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