Peroxidase-like Nanoparticles of Noble Metals Stimulate Increasing Sensitivity of Flavocytochrome b2-Based L-Lactate Biosensors DOI Creative Commons
Galina Gayda, Olha Demkiv, Nataliya Stasyuk

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(11), P. 562 - 562

Published: Nov. 20, 2024

We report the development of amperometric biosensors (ABSs) employing flavocytochrome

Language: Английский

Recent Advances in Electrochemical Enzyme-Based Biosensors for Food and Beverage Analysis DOI Creative Commons
Sudarma Dita Wijayanti, Lidiia Tsvik, Dietmar Haltrich

et al.

Foods, Journal Year: 2023, Volume and Issue: 12(18), P. 3355 - 3355

Published: Sept. 7, 2023

Food analysis and control are crucial aspects in food research production order to ensure quality safety of products. Electrochemical biosensors based on enzymes as the bioreceptors emerging promising tools for because their high selectivity sensitivity, short time, high-cost effectiveness comparison conventional methods. This review provides readers with an overview various electrochemical enzyme-based analysis, focusing used different applications sugars, alcohols, amino acids amines, organic acids, well mycotoxins chemical contaminants. In addition, strategies improve performance that have been reported over last five years will be discussed. The challenges future outlooks sector also presented.

Language: Английский

Citations

24

Copper Hexacyanoferrates Obtained via Flavocytochrome b2 Assistance: Characterization and Application DOI Creative Commons
Galina Gayda, Olha Demkiv, Nataliya Stasyuk

et al.

Biosensors, Journal Year: 2025, Volume and Issue: 15(3), P. 157 - 157

Published: March 2, 2025

Artificial enzymes or nanozymes (NZs) are gaining significant attention in biotechnology due to their stability and cost-effectiveness. NZs can offer several advantages over natural enzymes, such as enhanced under harsh conditions, longer shelf life, reduced production costs. The booming interest is likely continue potential applications expand. In our previous studies, we reported the “green” synthesis of copper hexacyanoferrate (gCuHCF) using oxidoreductase flavocytochrome b2 (Fcb2). Organic–inorganic micro-nanoparticles were characterized detail, including structure, composition, catalytic activity, electron-mediator properties. An SEM analysis revealed that gCuHCF possesses a flower-like structure well-suited for concentrating stabilizing Fcb2. As an effective peroxidase (PO) mimic, has been successfully employed H2O2 detection amperometric sensors oxidase-based biosensors. current study, demonstrated uniqueness lies its multifunctionality, serving PO chemosensor ammonium ions, biosensor L-lactate, exhibiting perovskite-like This exceptional ability enhance fluorescence blue light irradiation being first time. Using PO-like NZ, novel developed, optical L-arginine electrochemical biosensors methanol glycerol determination. Thus, gCuHCF, synthesized via Fcb2, presents promising platform development biosensors, bioreactors, biofuel cells, solar other advanced devices. innovative approach utilizing biocatalysts nanoparticle highlights groundbreaking direction materials science biotechnology.

Language: Английский

Citations

1

Application of graphene oxide nanosheet lactate biosensors in continuous assessment of athlete fitness DOI Creative Commons
Shulin Deng

Alexandria Engineering Journal, Journal Year: 2024, Volume and Issue: 88, P. 31 - 35

Published: Jan. 11, 2024

This study presents a groundbreaking approach in sports science, introducing novel graphene oxide (GO) nanosheet-based lactate biosensor designed for the non-invasive, continuous assessment of athlete fitness. Traditional monitoring techniques, typically invasive and offering only intermittent data, are significantly outperformed by this innovative method. Our uniquely combines oxidase (LOx) with GO nanosheets to measure levels sweat unprecedented accuracy real-time response. Notably, sensor exhibits exceptional sensitivity wide dynamic range, effectively capturing complete spectrum physiological variations, from resting states peak exertion levels. The practical implications research vast, revolutionary tool enhancing performance tailoring training regimens. stands as testament potential nanotechnology transforming providing efficient solution precise threshold measurement opening new horizons personalized athletic health monitoring.

Language: Английский

Citations

6

Alleviation of hyperglycaemia and oxidative stress by fruit extracts of different cultivars of the cornelian cherry (Cornus mas L. and Cornus mas × Cornus officinalis) in rats with diabetes mellitus DOI
I. V. Brodyak, A. A. Moroz, Karolina Bernacka

et al.

Food & Function, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Biological effects of fruit extracts from the different cultivars cornelian cherry in rats with streptozotocin-induced diabetes mellitus.

Language: Английский

Citations

0

Biofuel Cells Based on Oxidoreductases and Electroactive Nanomaterials: Development and Characterization DOI Creative Commons
Olha Demkiv, Nataliya Stasyuk, Galina Gayda

et al.

Biosensors, Journal Year: 2025, Volume and Issue: 15(4), P. 249 - 249

Published: April 14, 2025

Amperometric biosensors (ABSs) and enzymatic biofuel cells (BFCs) share several fundamental principles in their functionality, despite serving different primary purposes. Both devices rely on biorecognition, redox reactions, electron transfer (ET), advanced electrode materials, including innovative nanomaterials (NMs). ABSs BFCs, utilizing microbial oxidoreductases combination with electroactive NMs, are both efficient cost-effective. In the current study, laboratory prototypes of BFCs have been developed bioanodes based yeast flavocytochrome b2 (Fcb2) alcohol oxidase (AO), a cathode fungal laccase. For first time, featuring anodes Fcb2 co-immobilized NMs glassy carbon (GCE), cathode-utilizing laccase combined gold–cerium–platinum nanoparticles (nAuCePt). The most effective lactate BFC, which contains gold–hexacyanoferrate (AuHCF), exhibited specific power density 1.8 µW/cm2. A series were an AO-containing anode laccase/nAuCePt/GCE cathode. optimal configuration featured bioanode architecture AO/nCoPtCu/GCE, achieving 3.2 constructed tested using lactate-containing food product samples as fuels.

Language: Английский

Citations

0

Anaerobic glycolysis and oxidative stress interrelation in erythrocytes under administration of Cornus mas L. fruit extracts to rats with streptozotocin-induced diabetes mellitus DOI Creative Commons
A. A. Moroz, I. V. Brodyak, Alicja Z. Kucharska

et al.

Studia Biologica, Journal Year: 2024, Volume and Issue: 18(2), P. 49 - 66

Published: June 1, 2024

Background. In diabetes mellitus (DM), analysis of changes in the biochemical profile erythrocytes is important stage complex scientific research to clarify mechanism action medicinal products based on plant raw materials. The fruits Cornus mas L. are widely known. biologically active compounds these show multiple biological effects. However, effect fruit extracts cornelian cherry functional state has not been sufficiently studied. high glucose concentration induces various structural and changes, which lead numerous disturbances their metabolism. Glucose transported into by facilitated diffusion via GLUT2 undergoes catabolic breakdown anaerobic glycolysis (90 % all glucose) pentose phosphate pathway (the rest 10 %). ATP reduced coenzymes NADH + H+ NADPH formed due metabolism participate maintaining structure hemoglobin. Enzymes antioxidant defense system, prevent hemoglobin oxidation methemoglobin, especially important. Hyperglycemia development oxidative stress cause a decrease activity enzymes accumulation ligand forms (HbCO2, MetHb, HbA1c). Therefore, work aimed investigate red yellow content end glycolytic markers status blood cells rats with streptozotocin-induced diabetes. Materials Methods. DM 1 type animals was induced intraperitoneal injection streptozotocin. Experiments were performed male Wistar rats, who, from 10th day after induction, administered per os loganic acid obtained at dose 20 mg/kg body weight for 14 days. On 24th experiment, decapitated under ether anesthesia, taken. pyruvate lactate (as glycolysis) L-lactate dehydrogenase determined plasma erythrocytes, as well (activity superoxide dismutase, catalase glutathione peroxidase, level glutathione, TBA-reactive substances, modifications proteins advanced protein products). Results. catalase, peroxidase significantly increased against proteins, products, pyruvate, L-lactate, administration cherry. Noteworthy, indicators made it possible assess intensity streptozotocin Conclusions. Extracts might be potential natural drugs treatment metabolic disorders diabetes, they have corrective system preventing stress. It should pointed out that extract showed best among studied normalizing indicators.

Language: Английский

Citations

1

Peroxidase-like Nanoparticles of Noble Metals Stimulate Increasing Sensitivity of Flavocytochrome b2-Based L-Lactate Biosensors DOI Creative Commons
Galina Gayda, Olha Demkiv, Nataliya Stasyuk

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(11), P. 562 - 562

Published: Nov. 20, 2024

We report the development of amperometric biosensors (ABSs) employing flavocytochrome

Language: Английский

Citations

1