sensors-logo

Journal Browser

Journal Browser

Microbial Bioelectrochemical Sensor Systems for Environmental Monitoring

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Environmental Sensing".

Deadline for manuscript submissions: closed (2 January 2024) | Viewed by 1453

Special Issue Editor


E-Mail Website
Guest Editor
Federal State Budgetary Educational Institution of Higher Education, Tula State University, 300012 Tula, Russia
Interests: conductive polymers; electron transfer mediators; carbon nanotubes; BOD biosensors; electroactive biofilms; bioelectrocatalysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

One of the innovative directions in the development of analytical biotechnology is the creation of microbial bioelectrochemical systems - modern biotechnological tools that combine high sensitivity and ease of analysis. They can be successfully used to control individual components and integral characteristics in environmental monitoring, the food industry, and clinical diagnostics. Bioelectrochemical systems: microbial biosensors and biofuel cells of various designs and purposes are a promising direction in the development of modern biotechnology. Such systems based on the reactions of living organisms can be effectively used to analyze environmental objects. In particular, they can be used to analyze biochemical oxygen demand, integral toxicity, phenols, surfactants, heavy metals, and other important indicators of industrial pollution. The most important issues in the development of such analyzers are: simplification of the manufacturing technology and maintenance of a biological receptor element, a decrease in the lower limit of the analyzed values, an increase in the long-term stability of receptor systems and an increase in their resistance to toxic wastewater components. The solution of the questions raised is possible both through the development of approaches to obtaining the analytical signal of the biosensor, through the use of various types of highly sensitive transducers, and through the selection of a biological material with high metabolic activity, resistance to toxicants and a wide range of utilizable substrates, and new methods of biomaterial immobilization to increase stability of the analytical system.

Dr. Vyacheslav A. Arlyapov
Guest Editor

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 submissions that pass pre-check are 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. Sensors is an international peer-reviewed open access semimonthly 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 2600 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

  • BOD biosensors
  • toxicity biosensors
  • heavy metal biosensors
  • microbial fuel cells
  • electroactive biofilms
  • bioelectrocatalysis
  • biocomposite materials

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

15 pages, 7334 KiB  
Article
Novel Conductive Polymer Composite PEDOT:PSS/Bovine Serum Albumin for Microbial Bioelectrochemical Devices
by Sergei E. Tarasov, Yulia V. Plekhanova, Aleksandr G. Bykov, Konstantin V. Kadison, Anastasia S. Medvedeva, Anatoly N. Reshetilov and Vyacheslav A. Arlyapov
Sensors 2024, 24(3), 905; https://doi.org/10.3390/s24030905 - 30 Jan 2024
Viewed by 1192
Abstract
A novel conductive composite based on PEDOT:PSS, BSA, and Nafion for effective immobilization of acetic acid bacteria on graphite electrodes as part of biosensors and microbial fuel cells has been proposed. It is shown that individual components in the composite do not have [...] Read more.
A novel conductive composite based on PEDOT:PSS, BSA, and Nafion for effective immobilization of acetic acid bacteria on graphite electrodes as part of biosensors and microbial fuel cells has been proposed. It is shown that individual components in the composite do not have a significant negative effect on the catalytic activity of microorganisms during prolonged contact. The values of heterogeneous electron transport constants in the presence of two types of water-soluble mediators were calculated. The use of the composite as part of a microbial biosensor resulted in an electrode operating for more than 140 days. Additional modification of carbon electrodes with nanomaterial allowed to increase the sensitivity to glucose from 1.48 to 2.81 μA × mM−1 × cm−2 without affecting the affinity of bacterial enzyme complexes to the substrate. Cells in the presented composite, as part of a microbial fuel cell based on electrodes from thermally expanded graphite, retained the ability to generate electricity for more than 120 days using glucose solution as well as vegetable extract solutions as carbon sources. The obtained data expand the understanding of the composition of possible matrices for the immobilization of Gluconobacter bacteria and may be useful in the development of biosensors and biofuel cells. Full article
Show Figures

Figure 1

Back to TopTop