Use of PEDOT:PSS/Graphene/Nafion Composite in Biosensors Based on Acetic Acid Bacteria

Plekhanova, Yu. V.; Тарасов, С. Е.; Reshetilov, A. N.

doi:10.3390/bios11090332

Cited by 13 publications

(8 citation statements)

References 26 publications

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“…Earlier, we proposed a method for the immobilization of acetic acid bacteria on graphite screen-printed electrodes using a PEDOT:PSS/graphene/Nafion composite. These electrodes were used as part of a glucose biosensor [ 29 ]. In this work, the developed composite was used to create a microbial fuel cell based on Gluconobacter oxydans bacteria for wastewater treatment.…”

Section: Resultsmentioning

confidence: 99%

“…In particular, G. oxydans cells are a promising candidate for the creation of effective MFCs because their cell membrane contains pyrroloquinolinquinone (PQQ)-dependent dehydrogenases, which are capable of efficiently oxidizing a number of compounds [ 28 ]. Our previous work has developed a new conductive composite based on PEDOT:PSS, graphene and Nafion, which we used to effectively immobilize G. oxydans bacteria on the surface of screen-printed graphite electrodes [ 29 ]. It has been shown that the use of PEDOT:PSS in combination with graphene improves the analytical characteristics of a microbial biosensor; the use of graphene neutralizes the negative action of PEDOT:PSS on bacterial cells.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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Microbial fuel cells (MFCs) are a variety of bioelectrocatalytic devices that utilize the metabolism of microorganisms to generate electric energy from organic matter. This study investigates the possibility of using a novel PEDOT:PSS/graphene/Nafion composite in combination with acetic acid bacteria Gluconobacter oxydans to create a pure culture MFC capable of effective municipal wastewater treatment. The developed MFC was shown to maintain its activity for at least three weeks. The level of COD in municipal wastewater treatment was reduced by 32%; the generated power was up to 81 mW/m2 with a Coulomb efficiency of 40%. Combining the MFC with a DC/DC boost converter increased the voltage generated by two series-connected MFCs from 0.55 mV to 3.2 V. A maximum efficiency was achieved on day 8 of MFC operation and was maintained for a week; capacitors of 6800 µF capacity were fully charged in ~7 min. Thus, G. oxydans cells can become an important part of microbial consortia in MFCs used for treatment of wastewaters with reduced pH.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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“…The second component, the transducer helps in recording the interaction between the biological part with the analyte in the form of signals such as electrochemical, thermal, or optical. 67 The conducting polymers, 26 carbon-based materials such as CNT, 68 graphene, 69,70 and metal nanoparticles 71 are used as electrodes in biosensing applications. The flexibility, solution processability, and low cost are the advantages of conducting polymers materials.…”

Section: Properties Required For Biosensorsmentioning

confidence: 99%

Poly(3,4‐ethylenedioxythiophene):Poly(styrene sulfonate) in antibacterial, tissue engineering and biosensors applications: Progress, challenges and perspectives

Gupta

Datt

Mishra

et al. 2022

J of Applied Polymer Sci

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With the advancement of applications in biomedicines and bioelectronics, conducting polymers have attained huge significant attention. For such applications, poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is considered a potential conducting polymer because of its low cost, considerable stability, high conductivity and mechanical strength. Most importantly, its easy aqueous solution processability makes it more attractive. Over the last few years, PEDOT: PSS has been predominantly explored and investigated for different optoelectronic flexible devices, and recently it has been studied for biomedical applications.PEDOT:PSS based materials have made progress in biomedicines due to their properties such as biocompatibility, cell proliferation, antibacterial, nontoxicity and so forth. To adjust the desirable properties, special attention is required for altering the structure of PEDOT:PSS material. PEDOT:PSS offers excellent antibacterial properties against both gram-positive and gram-negative bacteria. Moreover, PEDOT:PSS demonstrates an important role in sensing human body humidity, pressure control, glucose detection, as well as employed in human sweat sensors. Besides these, PEDOT:PSS has been studied as a scaffold for endothelial cell preservation. There are several issues which need to be resolved in the future, such as improved biocompatibility and stability to explore the PEDOT:PSS based composite materials in biomedical applications. However, a related review article is lacking, directed on the PEDOT:PSS biomedical applications, namely, antibacterial, tissue engineering, and biosensing. Therefore, the current article summarizes importance of PEDOT:PSS for biomedical applications, and main emphasis is given to its recent advances, challenges and perspectives.

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“…The electrically conductive properties of many polymers are increased by the addition of nanomaterials, e.g., carbon nanotubes [ 62 , 63 ], graphene [ 64 ], etc. It should be noted that the use of various nanomaterials to improve the characteristics of amperometric biosensors is a certain trend, which is also used in the creation of mediator BOD biosensors [ 30 , 51 , 57 ].…”

Section: Types Of Transducersmentioning

confidence: 99%

Microbial Biosensors for Rapid Determination of Biochemical Oxygen Demand: Approaches, Tendencies and Development Prospects

et al. 2022

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One of the main indices of the quality of water is the biochemical oxygen demand (BOD). A little over 40 years have passed since the practical application of the first microbial sensor for the determination of BOD, presented by the Japanese professor Isao Karube. This time span has brought new knowledge to and practical developments in the use of a wide range of microbial cells based on BOD biosensors. At present, this field of biotechnology is becoming an independent discipline. The traditional BOD analysis (BOD5) has not changed over many years; it takes no less than 5 days to carry out. Microbial biosensors can be used as an alternative technique for assessing the BOD attract attention because they can reduce hundredfold the time required to measure it. The review examines the experience of the creation and practical application of BOD biosensors accumulated by the international community. Special attention is paid to the use of multiple cell immobilization methods, signal registration techniques, mediators and cell consortia contained in the bioreceptor. We consider the use of nanomaterials in the modification of analytical devices developed for BOD evaluation and discuss the prospects of developing new practically important biosensor models.

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Use of PEDOT:PSS/Graphene/Nafion Composite in Biosensors Based on Acetic Acid Bacteria

Cited by 13 publications

References 26 publications

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

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

Poly(3,4‐ethylenedioxythiophene):Poly(styrene sulfonate) in antibacterial, tissue engineering and biosensors applications: Progress, challenges and perspectives

Microbial Biosensors for Rapid Determination of Biochemical Oxygen Demand: Approaches, Tendencies and Development Prospects

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