Gluconobacter Oxydans-Based MFC with PEDOT:PSS/Graphene/Nafion Bioanode for Wastewater Treatment

Тарасов, С. Е.; Plekhanova, Yu. V.; Кашин, В. В.; Готовцев, П. М.; Signore, M.A.; Francioso, Luca; Kolesov, Vladimir; Reshetilov, A. N.

doi:10.3390/bios12090699

Cited by 11 publications

(3 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum voltage and the power density obtained in this work are comparable with similar parameters for the devices presented in the recent papers. It is worth noting that compared to the PEDOT:PSS/Graphene/Nafion combination [43], the composition presented in this work provides slightly lower power (due to the absence of graphene), but still allows the MFC to generate electricity for a longer period of time.…”

Section: Practical Application Of Composite As a Basis For An Mfcmentioning

confidence: 98%

Novel Conductive Polymer Composite PEDOT:PSS/Bovine Serum Albumin for Microbial Bioelectrochemical Devices

Tarasov,

Plekhanova,

Bykov

et al. 2024

Sensors

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Practical Application Of Composite As a Basis For An Mfcmentioning

confidence: 98%

Novel Conductive Polymer Composite PEDOT:PSS/Bovine Serum Albumin for Microbial Bioelectrochemical Devices

Tarasov,

Plekhanova,

Bykov

et al. 2024

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…One of the disadvantages of PEDOT is the demonstrated antibacterial effect [ 226 ], as well as the low pH of the composite solution, which can adversely affect the lifetime of the microbial bioanode. To eliminate limitations, the authors of [ 227 ] used the layer-by-layer deposition of a PEDOT:PSS/graphene/Nafion composite in combination with the acetic acid bacteria Gluconobacter oxydans , which are sufficiently resistant to the acidic properties of PEDOT:PSS and Nafion. As a result, a pure-culture microbial BFC was developed that can effectively treat municipal wastewater and shows potential when used in combination with a DC-DC boost converter as part of the Internet of Things technology.…”

Section: Bfcs Based On Conductive Polymersmentioning

confidence: 99%

Conductive Polymers and Their Nanocomposites: Application Features in Biosensors and Biofuel Cells

Kuznetsova,

Arlyapov,

Plekhanova

et al. 2023

Polymers

Self Cite

View full text Add to dashboard Cite

Conductive polymers and their composites are excellent materials for coupling biological materials and electrodes in bioelectrochemical systems. It is assumed that their relevance and introduction to the field of bioelectrochemical devices will only grow due to their tunable conductivity, easy modification, and biocompatibility. This review analyzes the main trends and trends in the development of the methodology for the application of conductive polymers and their use in biosensors and biofuel elements, as well as describes their future prospects. Approaches to the synthesis of such materials and the peculiarities of obtaining their nanocomposites are presented. Special emphasis is placed on the features of the interfaces of such materials with biological objects.

show abstract

“…The bacteria G. oxydans was chosen as an effective biocatalyst. Previously, G. oxydans was successfully used for environmental monitoring in bioelectrochemical systems of all types (based on oxygen electrodes [14], mediator type [27,28], and MFC [29][30][31]). Earlier, during the development of a biosensor based on an oxygen electrode to assess integral toxicity, the sensitivity of bacteria to both the toxic effects of organic pollutants and heavy metals was established [14].…”

Section: Development Of Electrochemical Biosensors With Different Typ...mentioning

confidence: 99%

Electrochemical Biosensors for Express Analysis of the Integral Toxicity of Polymer Materials

Yudina,

Kozlova,

Bogachikhin

et al. 2023

Biosensors

View full text Add to dashboard Cite

Biosensors based on an oxygen electrode, a mediator electrode, and a mediator microbial biofuel cell (MFC) using the bacteria Gluconobacter oxydans B-1280 were formed and tested to determine the integral toxicity. G. oxydans bacteria exhibited high sensitivity to the toxic effects of phenol, 2,4-dinitrophenol, salicylic and trichloroacetic acid, and a number of heavy metal ions. The system “G. oxydans bacteria–ferrocene–graphite-paste electrode” was superior in sensitivity to biosensors formed using an oxygen electrode and MFC, in particular regarding heavy metal ions (EC50 of Cr3+, Mn2+, and Cd2+ was 0.8 mg/dm3, 0.3 mg/dm3 and 1.6 mg/dm3, respectively). It was determined that the period of stable functioning of electrochemical systems during measurements was reduced by half (from 30 to 15 days) due to changes in the enzyme system of microbial cells when exposed to toxicants. Samples of the products made from polymeric materials were analyzed using developed biosensor systems and standard biotesting methods based on inhibiting the growth of duckweed Lemna minor, reducing the motility of bull sperm, and quenching the luminescence of the commercial test system “Ecolum”. The developed bioelectrocatalytic systems were comparable in sensitivity to commercial biosensors, which made it possible to correlate the results and identify, by all methods, a highly toxic sample containing diphenylmethane-4,4′-diisocyanate according to GC-MS data.

show abstract

Gluconobacter Oxydans-Based MFC with PEDOT:PSS/Graphene/Nafion Bioanode for Wastewater Treatment

Cited by 11 publications

References 59 publications

Novel Conductive Polymer Composite PEDOT:PSS/Bovine Serum Albumin for Microbial Bioelectrochemical Devices

Novel Conductive Polymer Composite PEDOT:PSS/Bovine Serum Albumin for Microbial Bioelectrochemical Devices

Conductive Polymers and Their Nanocomposites: Application Features in Biosensors and Biofuel Cells

Electrochemical Biosensors for Express Analysis of the Integral Toxicity of Polymer Materials

Contact Info

Product

Resources

About