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

School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
Food Technology Department, Nyala Technological College, Nyala P. O. Box 155, Sudan
Author to whom correspondence should be addressed.
Academic Editors: Yu Lei, Ashutosh Tiwari and Hongyun Liu
Sensors 2016, 16(2), 243;
Received: 7 December 2015 / Revised: 28 January 2016 / Accepted: 15 February 2016 / Published: 18 February 2016
(This article belongs to the Special Issue Microbial and Enzymatic Biosensors)
PDF [2360 KB, uploaded 18 February 2016]


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. View Full-Text
Keywords: magnetite Prussian blue nano-composites; one-pot synthesis; biosensor magnetite Prussian blue nano-composites; one-pot synthesis; biosensor

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Jomma, E.Y.; Ding, S.-N. One-Pot Hydrothermal Synthesis of Magnetite Prussian Blue Nano-Composites and Their Application to Fabricate Glucose Biosensor. Sensors 2016, 16, 243.

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