A5075744453- Electrochemical sensors and biosensors
- Microbial Fuel Cells and Bioremediation
- Analytical Chemistry and Sensors
- bioluminescence and chemiluminescence research
- Supercapacitor Materials and Fabrication
- Advanced biosensing and bioanalysis techniques
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Biosensors and Analytical Detection
- Microfluidic and Capillary Electrophoresis Applications
- Graphene and Nanomaterials Applications
- Discourse Analysis in Language Studies
- Energy Harvesting in Wireless Networks
- Innovative Energy Harvesting Technologies
- Neuroscience and Neural Engineering
- Advanced Chemical Sensor Technologies
- Advanced Battery Technologies Research
- Digital Communication and Language
- Sensor Technology and Measurement Systems
- SARS-CoV-2 detection and testing
- Nanoparticle-Based Drug Delivery
- Advanced Biosensing Techniques and Applications
- thermodynamics and calorimetric analyses
- Advanced Nanomaterials in Catalysis
- Environmental Chemistry and Analysis
G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms
2015-2024
Nizhnevartovsk State University
2023
Krasnoyarsk State Pedagogical University
2022
Russian Academy of Sciences
2003-2013
Microbial biofilms present one of the most widespread forms life on Earth. The formation microbial communities various surfaces presents a major challenge in variety fields, including medicine, food industry, shipping, etc. At same time, this process can also be used for benefit humans-in bioremediation, wastewater treatment, and biotechnological processes. main direction using electroactive is their incorporation into composition biosensor biofuel cells This review examines fundamental...
Microbial fuel cells (MFCs) are a variety of bioelectrocatalytic devices that utilize the metabolism microorganisms to generate electric energy from organic matter. This study investigates possibility using novel PEDOT:PSS/graphene/Nafion composite in combination with acetic acid bacteria Gluconobacter oxydans create pure culture MFC capable effective municipal wastewater treatment. The developed was shown maintain its activity for at least three weeks. level COD treatment reduced by 32%;...
Immobilization of the biocomponent is one most important stages in development microbial biosensors. In this study, we examined electrochemical properties a novel PEDOT:PSS/graphene/Nafion composite used to immobilize Gluconobacter oxydans bacterial cells on surface graphite screen-printed electrode. Bioelectrode responses glucose presence redox mediator 2,6-dichlorophenolindophenol were studied. The graphene reduced negative effect PEDOT:PSS and improved its conductivity. use Nafion enabled...
Biomembranes based on an organosilica sol-gel matrix were used to immobilize bacteria Paracoccus yeei VKM B-3302 as part of a biochemical oxygen demand (BOD) biosensor. Diethoxydimethylsilane (DEDMS) and tetraethoxysilane (TEOS) precursors create the in 1:1 volume ratio. The use scanning electron microscopy (SEM) low-temperature nitrogen adsorption method (BET) showed that forms capsule around microorganisms does not prevent exchange substrates waste products cells. DEDMS made it possible...
The anode of a microbial fuel cell (MFC) was formed on graphite electrode and immobilized Gluconobacter oxydans VKM-1280 bacterial cells. Immobilization performed in chitosan, poly(vinyl alcohol) or N-vinylpyrrolidone-modified alcohol). Ethanol used as substrate. modified using multiwalled carbon nanotubes. aim the modification to create conductive network between lipid membranes, containing exposed pyrroloquinoline quinone (PQQ)-dependent alcoholdehydrogenases, facilitate electron transfer...
This work investigated changes in the biochemical parameters of multilayer membrane structures, emerging at their modification with multiwalled carbon nanotubes (MWCNTs). The structures were represented by polyelectrolyte microcapsules (PMCs) containing glucose oxidase (GOx). PMCs made using sodium polystyrene sulfonate (polyanion) and poly(allylamine hydrochloride) (polycation). Three compositions considered: MWCNTs incorporated between layers; inserted into hollow microcapsule;...
This paper considers the effect of multiwalled carbon nanotubes (MWCNTs) on parameters Gluconobacter oxydans microbial biosensors. MWCNTs were shown not to affect structural integrity cells and their respiratory activity. The positive results from using due a decrease in impedance electrode. total system decreased significantly, 9000 kOhm (G. oxydans/chitosan composite) 600 oxydans/MWCNTs/chitosan). Modification amperometric biosensor with led an increase maximal signal 65 869 nA for glucose...
Recent years have witnessed an ever-increasing interest in developing electrochemical biosensors based on direct electron transfer-type bioelectrocatalysis. This work investigates the bioelectrocatalytic oxidation of glucose by membrane fractions Gluconobacter oxydans cells screen-printed electrodes modified with thermally expanded graphite and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Electrooxidation was shown to occur without presence transport mediators....
A novel conductive composite based on PEDOT:PSS, BSA, and Nafion for effective immobilization of acetic acid bacteria graphite electrodes as part biosensors microbial fuel cells has been proposed. It is shown that individual components in the do not have a significant negative effect catalytic activity microorganisms during prolonged contact. The values heterogeneous electron transport constants presence two types water-soluble mediators were calculated. use biosensor resulted an electrode...
This work considers the effects of various carbon nanomaterials and fibres on bioelectrocatalytic respiratory activity bacterial cells during oxidation ethanol in presence an electron transport mediator.
The characteristics of an electrochemical biosensor based on a Prussian-blue screen-printed electrode containing glucose oxidase incorporated into polyelectrolyte microcapsules (PMC) are considered. PMC with the embedded enzyme were formed using sodium polystyrene sulfonate and poly(allylamine hydrochloride). compared those immobilized in chitosan gel. We assessed dependences signals composition buffer solution, concentration; operational long-term stabilities. proved to be more sensitive...
This review deals with the use of highly conductive polymer PEDOT:PSS in biomedical and bioelectrochemical systems. The examples toxic effects on living cells, positive viability cells tissues are given. properties polymer, methods increasing its electrical conductivity by modification various nanoparticles nanomaterials discussed. Examples using PEDOT composites devices, such as biosensors biofuel considered. Changes characteristics under influence