Special Issue "Biosensors for Agriculture, Environment and Food"

A special issue of Biosensors (ISSN 2079-6374). This special issue belongs to the section "Biosensor and Bioelectronic Devices".

Deadline for manuscript submissions: 30 August 2022.

Special Issue Editors

Prof. Dr. Qi Zhang
E-Mail Website
Guest Editor
National Reference Lab for Agricultural Testing (Biotoxin), Key Lab of Detection for Mycotoxin, Ministry of Agriculture and Rural Affairs PRC, Lab of Quality & Safety Risk Assessment for Oilseeds Products (Wuhan), Ministry of Agriculture and Rural Affairs PRC, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
Interests: mycotoxin; antibody; nanobody; immunoassay; sensor; diagnosis; prediction; warning; prevention; reduction
Special Issues and Collections in MDPI journals
Prof. Dr. Jianhan Lin
E-Mail Website
Guest Editor
Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China
Interests: biosensors; microfluidic chips; magnetic separation; food safety; animal disease control
Dr. Haibo Huang
E-Mail Website
Guest Editor
Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24073, USA
Interests: food detection; food processing; process control

Special Issue Information

Dear Colleagues,

Food safety has become a hot issue concerned by governments, people and society. Biosensors have been playing a greater vital role in monitoring agro-products and their production process to ensure end-foods’ quality and safety, and they usually demonstrate a lot of benefits, such as being sensitive, rapid, portable, cheap and especially suitable for on-site testing. So, this topic will concern the development of biosensors and analytical methods, especially for chemicals, microorganisms, biotoxins in agriculture, environment and food samples. It is suggested that biosensors should be in line with the trend of five “S”, Sensitivity, Specificity (Selection), Speed, Simultaneously, Small (Smart), and that all detection methods should be validated using agriculture, environment or food samples. Interdisciplinary research and integrative application research related to biosensors are also encouraged, including review articles and research articles.

Prof. Dr. Qi Zhang
Prof. Dr. Jianhan Lin
Dr. Haibo Huang
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 monthly 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 1800 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.

Keywords

  • biosensors
  • agro-products
  • environment
  • food detection
  • food quality

Published Papers (1 paper)

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Research

Article
An Electrochemical Enzyme Biosensor for Ammonium Detection in Aquaculture Using Screen-Printed Electrode Modified by Gold Nanoparticle/Polymethylene Blue
Biosensors 2021, 11(9), 335; https://0-doi-org.brum.beds.ac.uk/10.3390/bios11090335 - 13 Sep 2021
Viewed by 386
Abstract
A SPEC/AuNPs/PMB modified electrode was prepared by electrodeposition and electro-polymerization. The electrochemical behavior of reduced nicotinamide adenine dinucleotide (NADH) on the surface of the modified electrode was studied by cyclic voltammetry. A certain amount of substrate and glutamate dehydrogenase (GLDH) were coated on [...] Read more.
A SPEC/AuNPs/PMB modified electrode was prepared by electrodeposition and electro-polymerization. The electrochemical behavior of reduced nicotinamide adenine dinucleotide (NADH) on the surface of the modified electrode was studied by cyclic voltammetry. A certain amount of substrate and glutamate dehydrogenase (GLDH) were coated on the modified electrode to form a functional enzyme membrane. The ammonia nitrogen in the water sample could be calculated indirectly by measuring the consumption of NADH in the reaction. The results showed that the strength of electro-catalytic current signal was increased by two times; the catalytic oxidation potential was shifted to the left by 0.5 V, and the anti-interference ability of the sensor was enhanced. The optimum substrate concentration and enzyme loading were determined as 1.3 mM NADH, 28 mM α-Ketoglutarate and 2.0 U GLDH, respectively. The homemade ceramic heating plate controlled the working electrode to work at 37 °C. A pH compensation algorithm based on piecewise linear interpolation could reduce the measurement error to less than 3.29 μM. The biosensor exhibited good linearity in the range of 0~300 μM with a detection limit of 0.65 μM NH4+. Compared with standard Nessler’s method, the recoveries were 93.71~105.92%. The biosensor was found to be stable for at least 14 days when refrigerated and sealed at 4 °C. Full article
(This article belongs to the Special Issue Biosensors for Agriculture, Environment and Food)
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