Special Issue "Electrochemical (Bio)sensors for Environmental and Food Analyses"

A special issue of Biosensors (ISSN 2079-6374).

Deadline for manuscript submissions: 31 January 2018

Special Issue Editors

Guest Editor
Dr. Kevin C. Honeychurch

Centre for Research in Biosciences, University of the West of England, Bristol, UK
Website | E-Mail
Phone: +44 (0)117 32 87357
Interests: screen-printed electrodes; electrochemical sensors; biosensors; biomedicine; agri-food; environmental analysis
Guest Editor
Dr. Martina Piano

Institute of Bio-Sensing Technology (IBST), University of the West of England, Bristol, UK
Website | E-Mail
Phone: +44 (0)117 32 84597
Interests: biosensors; environmental analysis; microfluidics; antibodies; magnetic beads; enzyme stabilisation

Special Issue Information

Dear Colleagues,

The complexity of the environment offers a number of analytical challenges; challenges that need to be met if we are to be able to provide clean drinking water and food, as well as to safeguard environmental quality for ourselves and future generations. Presently, many monitoring regimes are focused on the collection of samples and their subsequent analyses at a centralised laboratory; systems, which, by their nature, have an inherent lag-time, utilise expensive instrumentation, and require highly-trained staff for their implementation. The application of electrochemical sensors and biosensors has shown the possibility of economic, rapid, and decentralised testing of complex samples, carried out by relatively untrained individuals at the point-of-need. Analyses of food and the environment offer large potential markets and opportunities for these devices; however, there are a number of both technical and commercial issues that need to be addressed before these devices can have a significant role.

The aim of this Special Issue of Biosensors, “Electrochemical (Bio)sensors for Environmental and Food Analyses” is to report recent developments and advances in sensors and biosensors to meet the demands of environmental and food analysis. Its objective is to collect a series of articles which show the developments and applications of both electrochemical sensors and biosensors in this area. It is envisaged that this will cover a wide range of areas; including electrochemical sensors employing both classical and advanced electrochemical techniques, electrochemical biosensors based on enzymes, antibodies, DNA, aptamers, molecularly imprinted polymers and the application of nanotechnology in the forms of reviews, communications, and academic articles.

Dr. Kevin C. Honeychurch
Dr. Martina Piano
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Biosensors is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 350 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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Research

Open AccessArticle An Electrochemical Enzyme Biosensor for 3-Hydroxybutyrate Detection Using Screen-Printed Electrodes Modified by Reduced Graphene Oxide and Thionine
Biosensors 2017, 7(4), 50; doi:10.3390/bios7040050
Received: 23 October 2017 / Revised: 8 November 2017 / Accepted: 10 November 2017 / Published: 11 November 2017
PDF Full-text (3589 KB) | HTML Full-text | XML Full-text
Abstract
A biosensor for 3-hydroxybutyrate (3-HB) involving immobilization of the enzyme 3-hydroxybutyrate dehydrogenase onto a screen-printed carbon electrode modified with reduced graphene oxide (GO) and thionine (THI) is reported here. After addition of 3-hydroxybutyrate or the sample in the presence of NAD+ cofactor,
[...] Read more.
A biosensor for 3-hydroxybutyrate (3-HB) involving immobilization of the enzyme 3-hydroxybutyrate dehydrogenase onto a screen-printed carbon electrode modified with reduced graphene oxide (GO) and thionine (THI) is reported here. After addition of 3-hydroxybutyrate or the sample in the presence of NAD+ cofactor, the generated NADH could be detected amperometrically at 0.0 V vs. Ag pseudo reference electrode. Under the optimized experimental conditions, a calibration plot for 3-HB was constructed showing a wide linear range between 0.010 and 0.400 mM 3-HB which covers the clinically relevant levels for diluted serum samples. In addition, a limit of detection of 1.0 µM, much lower than that reported using other biosensors, was achieved. The analytical usefulness of the developed biosensor was demonstrated via application to spiked serum samples. Full article
(This article belongs to the Special Issue Electrochemical (Bio)sensors for Environmental and Food Analyses)
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