Facile Preparation of High-Performance Copper Oxide Sensors for Electroanalysis of Hydrogen Peroxide

Reddy, G. Rajendra Kumar; Hyder, M.L.; Kumar, P. Suresh

doi:10.1016/j.matpr.2017.10.016

Cited by 4 publications

(1 citation statement)

References 26 publications

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“…Thus, NPs are useful chemical entities with interesting pharmacological characteristics applied when conventional treatments fail for any reason. In recent years, NPs based in metals or metal oxides have been described such as Ag [39][40][41], Au [42,43], Cu [44], CuO [45], or ZnO [46]. From these NPs, silver NPs (AgNPs) are known to damage bacterial cell via prolonged delivery of Ag+ ions, showing a potent antimicrobial activity [47] and a low cytotoxicity [48], and have better physiochemical and biological properties beyond bulk silver [49].…”

Section: Introductionmentioning

confidence: 99%

Biofunctionalization of Porous Ti Substrates Coated with Ag Nanoparticles for Potential Antibacterial Behavior

Gaviria

Alcudia

Begines

et al. 2021

Metals

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Ti prosthesis have shown better biological compatibility, mechanical performance, and resistance to corrosion in cases of bone replacements. Nevertheless, fully dense Ti in connection with bone-host tissues show stress-shielding phenomenon that, together with the development of frequent undesirable microbial infections, may lead to implant failures. To overcome these issues, the present study aimed at the development of a novel combination of a chemically functionalized porous Ti substrate with a potentially therapeutic AgNPs coating. Fully dense and porous Ti substrates (30 and 60 vol.%, 100–200 and 355–500 μm, as spacer particles) were studied. Ti surface was treated with acid or basic medium followed by silanization and deposition of AgNPs by “submerged” and “in situ” methods. In general, for similar porosity, mechanical resistance decreased as pore size increased. Acidic reagent and submerged methodology were the best combination for fully dense Ti substrates. Hence, they were also employed for porous Ti substrates. Depending on the porosity of the substrates, variations can be observed both in the size and degree of agglomeration of the deposited AgNPs, entailing differences in the antibacterial behavior of the samples.

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Section: Introductionmentioning

confidence: 99%

Biofunctionalization of Porous Ti Substrates Coated with Ag Nanoparticles for Potential Antibacterial Behavior

Gaviria

Alcudia

Begines

et al. 2021

Metals

View full text Add to dashboard Cite

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Enzyme‐free Cu₂O@MnO₂/GCE for Hydrogen Peroxide Sensing

et al. 2019

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A novel composite material of copper (I) oxide at manganese (IV) oxide (Cu 2 O@MnO 2 ), was synthesized and applied for modification on the glassy carbon electrode (GCE) surface (Cu 2 O@MnO 2 /GCE) as a hydrogen peroxide (H 2 O 2 ) sensor. The composite material was characterized regarding its structural and morphological properties, using field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The Cu 2 O@MnO 2 /GCE showed an excellent electrocatalytic response to the oxidation of H 2 O 2 which provided a 0.56 s À1 charge transfer rate constant (K s ), 1.65 3 10 À5 cm 2 s À1 diffusion coefficient value (D), 0.12 mm 2 electroactive surface area (A e ) and 1.04 3 10 À8 mol cm À2 surface concentration (g). At the optimal condition, the constructed sensor exhibited a wide linear range from 0.5 mM to 20 mM with a low limit of detection (63 nM, (S/N = 3) and a good sensitivity of 256.33 mA mM À1 cm À2 . It also presented high stability (DI response AE 15 %, n = 100), repeatability (1.25 %RSD, n = 10) and reproducibility (3.55 %RSD, n = 10). The results indicated that the synthesized Cu 2 O@MnO 2 was successfully used as a new platform for H 2 O 2 sensing.

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Fe/C magnetic nanocubes with enhanced peroxidase mimetic activity for colorimetric determination of hydrogen peroxide and glucose

et al. 2019

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Facile Preparation of High-Performance Copper Oxide Sensors for Electroanalysis of Hydrogen Peroxide

Cited by 4 publications

References 26 publications

Biofunctionalization of Porous Ti Substrates Coated with Ag Nanoparticles for Potential Antibacterial Behavior

Biofunctionalization of Porous Ti Substrates Coated with Ag Nanoparticles for Potential Antibacterial Behavior

Enzyme‐free Cu₂O@MnO₂/GCE for Hydrogen Peroxide Sensing

Fe/C magnetic nanocubes with enhanced peroxidase mimetic activity for colorimetric determination of hydrogen peroxide and glucose

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Facile Preparation of High-Performance Copper Oxide Sensors for Electroanalysis of Hydrogen Peroxide

Cited by 4 publications

References 26 publications

Biofunctionalization of Porous Ti Substrates Coated with Ag Nanoparticles for Potential Antibacterial Behavior

Biofunctionalization of Porous Ti Substrates Coated with Ag Nanoparticles for Potential Antibacterial Behavior

Enzyme‐free Cu2O@MnO2/GCE for Hydrogen Peroxide Sensing

Fe/C magnetic nanocubes with enhanced peroxidase mimetic activity for colorimetric determination of hydrogen peroxide and glucose

Contact Info

Product

Resources

About

Enzyme‐free Cu₂O@MnO₂/GCE for Hydrogen Peroxide Sensing