A5034289919- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Electrochemical Analysis and Applications
- Advanced biosensing and bioanalysis techniques
- Conducting polymers and applications
- Liver Disease Diagnosis and Treatment
- Molecular Junctions and Nanostructures
- Microfluidic and Capillary Electrophoresis Applications
- Microbial metabolism and enzyme function
- Enzyme Catalysis and Immobilization
- Physiological and biochemical adaptations
- Microbial Fuel Cells and Bioremediation
- Carbon Nanotubes in Composites
- Amino Acid Enzymes and Metabolism
- Neuroscience and Neuropharmacology Research
- Aquaculture Nutrition and Growth
- Fuel Cells and Related Materials
- Crystallization and Solubility Studies
- Microbial Metabolites in Food Biotechnology
- Heat shock proteins research
- Graphene and Nanomaterials Applications
- Metalloenzymes and iron-sulfur proteins
- biodegradable polymer synthesis and properties
- Microbial Metabolic Engineering and Bioproduction
- Pancreatitis Pathology and Treatment
Vilnius University
2015-2024
Institute of Biochemistry
2002-2007
Plekhanov Russian University of Economics
1999
Lomonosov Moscow State University
1999
A newly isolated, purified, and characterized PQQ-dependent alcohol dehydrogenase (a bacterial membrane-bound protein) was recently found to display a surprisingly large linear range high selectivity towards ethanol when integrated into conducting polymer network on platinum electrode. These findings motivated us study the enzyme simply immobilized onto carbonaceous surfaces in order establish its characteristics suitability for sensor development, design being based direct-electron transfer...
Abstract Bis‐cyclometalated analogs of tris(2,2′‐bipyridine)ruthenium(II), namely [Ru III (C ∩ N) 2 (N N)]PF 6 complexes 3 , are prepared in 52–57 % yield from the mono‐cyclometalated N ‐dimethylbenzylamine (dmbaH) derivatives II (dmba)(N N)(MeCN) ]PF = bpy or phen) and mercurated 2‐phenylpyridinato‐ 4‐(2‐tolyl)pyridinato species Hg(C N)Cl. Two new bis‐ruthenacycles studied by X‐ray crystallography revealed a C 1 symmetry, with atoms different ligands trans to nitrogen ligand. The reduction...
Abstract In the present study, authors investigated effect of acclimation duration (up to 4 h) on behavioural characteristics taxonomically and functionally different fish species, i.e ., migratory rheophilic salmonids rainbow trout ( Oncorhynchus mykiss ) Atlantic salmon Salmo salar ), non‐migratory eurytopic European perch Perca fluviatilis three‐spined stickleback Gasterosteus aculeatus ). Specifically, explored patterns based specific endpoints (average, maximum angular velocity) during...
This paper presents a mathematical model of carbon nanotubes-based mediatorless biosensor. The developed is based on nonlinear non-stationary reaction-diffusion equations. involves four layers (compartments): layer enzyme solution entrapped terylene membrane, the single walled nanotubes deposited perforated and an outer diffusion layer. biosensor response sensitivity are investigated by changing parameters with special emphasis transfer electrons in enzyme-loaded nanotubes. numerical...
New substrates of horseradish peroxidase and laccase incorporating advantages ferrocenes, on one hand, typical aromatic peroxidase, the other, viz. p-ferrocenylaniline (FcC6H4NH2-p) p-ferrocenylphenol (FcC6H4OH-p), have been introduced. The new are superior in terms (i) high reactivity, i.e., second-order rate constants for their oxidation by compound II equal ca. 1 × 107 M-1 s-1 at 25 °C, pH 5.0, which 102 times higher than corresponding ferrocene, alkylferrocenes, aniline; (ii) easy...
The amperometric biosensor for urea determination is designed. decomposition product of produced by urease oxidized in an electrochemical way. specially developed carbon black (CB) paste electrode covered a semipermeable membrane containing immobilized urease. Three types the action are identified. At low working potentials (0-0.1 V), one electron oxidation carbamic acid can be monitored. Cation-radical whereupon undergoes dimerization to hydrazine. higher (0.2-0.5 electro-oxidation both and...
In this paper, we present a biosensor based on gold nanoparticle (AuNP)-modified Pt electrode with an adjusted membrane containing cross-linked L-amino acid oxidase for the detection and quantification of total acids. The designed was tested characterized using capacitance-based principle, capacitance measurements after polarization, disconnection from circuit, addition respective amount analyte. method implemented capacitive catalytic properties Pt/AuNP electrode; nanostructures were able...
Thermally reduced graphene oxide (TRGO) is a graphene-based nanomaterial that has been identified as promising for the development of amperometric biosensors. Urease, in combination with TRGO, allowed us to create mediator-free biosensor intention precise detection urea clinical trials. Beyond simplicity technology, exhibited high sensitivity (2.3 ± 0.1 µA cm−2 mM−1), great operational and storage stabilities (up seven months), appropriate reproducibility (relative standard deviation (RSD)...