alexa Nanomaterials towards fabrication of cholesterol biosensors: Key roles and design approaches.
Engineering

Engineering

Biosensors Journal

Author(s): Saxena U, Das AB, Saxena U, Das AB

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Abstract Importance of cholesterol biosensors is already recognized in the clinical diagnosis of cardiac and brain vascular diseases as discernible from the enormous amount of research in this field. Nevertheless, the practical application of a majority of the fabricated cholesterol biosensors is ordinarily limited by their inadequate performance in terms of one or more analytical parameters including stability, sensitivity and detection limit. Nanoscale materials offer distinctive size tunable electronic, catalytic and optical properties which opened new opportunities for designing highly efficient biosensor devices. Incorporation of nanomaterials in biosensing devices has found to improve the electroactive surface, electronic conductivity and biocompatibility of the electrode surfaces which then improves the analytical performance of the biosensors. Here we have reviewed recent advances in nanomaterial-based cholesterol biosensors. Foremost, the diverse roles of nanomaterials in these sensor systems have been discussed. Later, we have exhaustively explored the strategies used for engineering cholesterol biosensors with nanotubes, nanoparticles and nanocomposites. Finally, this review concludes with future outlook signifying some challenges of these nanoengineered cholesterol sensors. Copyright © 2015 Elsevier B.V. All rights reserved. This article was published in Biosens Bioelectron and referenced in Biosensors Journal

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