Conducting Polymers in Amperometric Sensors: A State of the Art over the Last 15 Years with a Focus on Polypyrrole-, Polythiophene-, and Poly(3,4-ethylenedioxythiophene)-Based Materials

Chemosensors, Journal Year: 2024, Volume and Issue: 12(5), P. 81 - 81

Published: May 11, 2024

Conducting polymers are used in a wide range of applications, especially the design and development electrochemical sensors. Their main advantage, this context, is their ability to efficiently modify an electrode surface using direct polymerization suitable monomer cell, or by physical coating. Additionally, conducting can be mixed with further materials (metal nanoparticles, carbonaceous materials) enhance conductivity analytical features (linear range, limit detection, sensitivity, selectivity). Due characteristics, polymer-based amperometric sensors applied determination different organic inorganic analytes. A view recent advances field focusing on pyrrole, thiophene, 3,4-ethylenedioxythiophene as starting reported.

Language: Английский

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Biofuel Cells Based on Oxidoreductases and Electroactive Nanomaterials: Development and Characterization

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

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Enhanced Electrochemiluminescence Detection of Dopamine Using Antifouling PEDOT-Modified SPEs for Complex Biological Samples

ACS Measurement Science Au, Journal Year: 2024, Volume and Issue: 4(6), P. 712 - 720

Published: Oct. 4, 2024

Detecting medically important biomarkers in complex biological samples without prior treatment or extraction poses a major challenge biomedical analysis. Electrochemical methods, specifically electrochemiluminescence (ECL), show potential due to their high sensitivity, minimal background noise, and straightforward operation. This study investigates the ECL performance of screen-printed electrodes (SPEs) modified with conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) its derivatives for dopamine (DA) detection. PEDOT modification significantly enhances intensity, improves expands linear range DA Functionalizing ethylene glycol (EG) further stability, specificity, resistance interferences These SPEs demonstrate 1-200 μM detection limit as low 0.887 nM (

Language: Английский

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Laccase-like nanozyme fabricated by Cu2+-doped ZIF8 for dopamine determination and catalytic degradation of phenolic pollutants

Colloid & Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 26, 2024

Language: Английский

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An electrochemical enzymatic biosensor based on Xylaria sp. laccase isolated from cassava waste is applied to quantify dopamine

Process Biochemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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