title: One-Pot Hydrothermal Synthesis of Magnetite Prussian Blue Nano-Composites and Their Application to Fabricate Glucose Biosensor.
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.
authors.affiliation: School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China. ezzoezzo11@yahoo.com.|Food Technology Department, Nyala Technological College, Nyala P. O. Box 155, Sudan. ezzoezzo11@yahoo.com.
authors.forename: Ezzaldeen Younes
authors.initials: EY
authors.lastname: Jomma
authors.affiliation: School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China. snding@seu.edu.cn.
authors.forename: Shou-Nian
authors.initials: SN
authors.lastname: Ding
mesh_terms: D015374:Biosensing Techniques; D004563:Electrochemistry; D005295:Ferrocyanides / Q000737:chemistry; D005947:Glucose / Q000032:analysis*; D006861:Hydrogen Peroxide / Q000737:chemistry; D053761:Nanocomposites / Q000737:chemistry*
chemical_list: D005295:Ferrocyanides; D006861:Hydrogen Peroxide; D005947:Glucose; C000170:ferric ferrocyanide
keywords: biosensor; magnetite Prussian blue nano-composites; one-pot synthesis