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Issue 45, 2016
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Functional nanostructures for enzyme based biosensors: properties, fabrication and applications

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Abstract

With the increased use of nanobiotechnology-enabled solutions for diagnostics, therapeutics, bioelectronics, environmental, and energy-related applications, there exists a great demand for developing manufacturing processes that can reliably and reproducibly generate functional nanostructures with bioactive properties at low cost and in large quantities for implementation in practical devices. Interest in the development of field portable monitoring devices has increased throughout the past decade. Herein we describe fabrication, characterization and performance of portable and printable enzyme biosensors based on functional enzyme–nanoparticle conjugates. We review specific physicochemical and surface properties of nanoparticles used as carriers and sensing components for the design of portable biosensors and describe the role of these parameters in enhancing the performance, stability and field operability of these devices. Assembly of enzyme–nanoparticle conjugates is also discussed with an overview of current and emerging techniques enabling large scale roll-to-roll fabrication and miniaturization, including screen-printing, inkjet and 3D printing methods and their integration in flexible, wearable and inexpensive point-of-use devices. Current status and implementation challenges are provided with examples of applications in the clinical, environmental, public safety and food monitoring fields.

Graphical abstract: Functional nanostructures for enzyme based biosensors: properties, fabrication and applications

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Publication details

The article was received on 09 Aug 2016, accepted on 22 Sep 2016 and first published on 22 Sep 2016


Article type: Review Article
DOI: 10.1039/C6TB02009G
Citation: J. Mater. Chem. B, 2016,4, 7178-7203
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    Functional nanostructures for enzyme based biosensors: properties, fabrication and applications

    A. Othman, A. Karimi and S. Andreescu, J. Mater. Chem. B, 2016, 4, 7178
    DOI: 10.1039/C6TB02009G

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