ArticleBiosensors2022
Highly Porous 3D Gold Enhances Sensitivity of Amperometric Biosensors Based on Oxidases and CuCe Nanoparticles.
Article in Biosensors, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- Surface Nanoengineering of Gold via Oxalic Acid Anodization: Morphology, Composition, Electronic Properties, and Corrosion Resistance in Artificial Saliva.Materials (Basel, Switzerland) · 2026Article
- Biofuel Cells Based on Oxidoreductases and Electroactive Nanomaterials: Development and Characterization.Biosensors · 2025Article
- Peroxidase-like Nanoparticles of Noble Metals Stimulate Increasing Sensitivity of FlavocytochromeBiosensors · 2024Article
- Highly sensitive amperometric sensors based on laccase-mimetic nanozymes for the detection of dopamine.RSC advances · 2024Article
- Ammonium nanochelators in conjunction with arginine-specific enzymes in amperometric biosensors for arginine assay.Mikrochimica acta · 2023Article
- The Peroxidase-like Nanocomposites as Hydrogen Peroxide-Sensitive Elements in Cholesterol Oxidase-Based Biosensors for Cholesterol Assay.Journal of functional biomaterials · 2023Article
- FlavocytochromeBiosensors · 2023Article
- Nanomaterials as Redox Mediators in Laccase-Based Amperometric Biosensors for Catechol Assay.Biosensors · 2022Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
Abstract
Metallic nanoparticles potentially have wide practical applications in various fields of science and industry. In biosensorics, they usually act as catalysts or nanozymes (NZs) and as mediators of electron transfer. We describe here the development of amperometric biosensors (ABSs) based on purified oxidases, synthesized nanoparticles of CuCe (nCuCe), and micro/nanoporous gold (pAu), which were electro-deposited on a graphite electrode (GE). As an effective peroxidase (PO)-like NZ, nCuCe was used here as a hydrogen-peroxide-sensing platform in ABSs that were based on glucose oxidase, alcohol oxidase, methylamine oxidase, and L-arginine oxidase. At the same time, nCuCe is an electroactive mediator and has been used in laccase-based ABSs. As a result, the ABSs we constructed and characterized were based on glucose, methanol, methyl amine, L-arginine, and catechol, respectively. The developed nCuCe-based ABSs exhibited improved analytical characteristics in comparison with the corresponding PO-based ABSs. Additionally, the presence of pAu, with its extremely advanced chemo-sensing surface layer, was shown to significantly increase the sensitivities of all constructed ABSs. As an example, the bioelectrodes containing laccase/GE, laccase/nCuCe/GE, and laccase/nCuCe/pAu/GE exhibited sensitivities to catechol at 2300, 5055, and 9280 A·M
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