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Highly Sensitive Enzyme-Less Glucose Biosensor Based on α-Fe2O3 Nanoparticles

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This paper reports the synthesis, characterization and fabrication of enzyme-less glucose sensor based on iron oxide (α-Fe2O3) nanoparticles synthesized by facile hydrothermal process. The synthesized nanoparticles were characterized by various techniques to understand the morphologies, composition and scattering properties. The morphological and structural studies confirmed the successful formation of α-Fe2O3 nanoparticles in large quantity which exhibiting well-crystallinity and rhombohedral crystal structures. The fabricated enzyme-less glucose sensor based on α-Fe2O3 nanoparticles revealed high sensitivity of 30.89 μA/mM cm2 with a fast response time (5 sec). The fabricated glucose sensor exhibited high reproducibility and its electrochemical response found to be linear over a wide concentration range of glucose from 1 to 10 mM with coefficient of regression (R) = 0.9981.
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Keywords: ENZYME LESS; GLUCOSE; SENSITIVITY; α-Fe2O3 NANOPARTICLES

Document Type: Short Communication

Publication date: March 1, 2018

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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