Facial Eco-Friendly Synthesis of Copper Oxide Nanoparticles Using Chia Seeds Extract and Evaluation of Its Electrochemical Activity

Abstract

In the current study, copper oxide nanoparticles (CuO NPs) were synthesized using chia seed extract in a simple, rapid, and eco-friendly manner for the first time. The synthesized CuO NPs were characterized using different analytical techniques. The images of field emission scanning electron microscopy revealed that the CuO NPs were triangular and pyramid in structure, with a mean particle size of 61.5 nm. The absorption peak of the synthesized CuO NPs was measured using ultraviolet-visible spectroscopy and was recorded at a wavelength of 291 nm. The results of energy-dispersive X-ray analysis confirmed that the CuO NPs synthesized using chia seed extract yielded high-purity CuO NPs. Moreover, the X-ray diffraction analysis indicated the highly crystalline nature of the CuO NPs, and the X-ray photoelectron spectroscopy results indicated that the CuO NPs were prepared successfully. Additionally, electrochemical impedance spectroscopy measurements revealed excellent electrocatalytic conductivity and fast electron transfer at the electrode/electrolyte interface of the synthesized CuO NP-modified glassy carbon electrode.

Sonochemical-Assisted Biogenic Synthesis of Theophrasite β-Ni(OH)2 Nanocluster Using Chia Seeds Extract: Characterization and Anticancer Activity

“…MTT, 3-[4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide assay was applied to assess the cytotoxicity of the bio-synthesized β-Ni(OH) 2 against the MCF7 cell line. The MTT assay relay on the cleavage of tetrazolium salt by mitochondrial dehydrogenases in live cells [ 35 , 36 ]. Before the MTT assay, the cells were put in 96-well sterilized microplates (5 × 10 4 cells/well) and kept at 37 °C with DMSO solutions of the test compounds for 48 h in a serum-free medium.…”

“…Accordingly, these chemical compounds in the chia seeds extract can be considered a model candidate for the reduction and stabilization process of nanomaterials. The dark or white chia seed extract has been applied in the synthesis of Ag nanoparticles [ 34 ], CuO and NiO nanoparticles [ 35 ]. In the present work chia seeds extract is employed to synthesize β-Ni(OH) 2 nanocluster using the sonochemical assisted biogenic method as a unique, fast, effective, and eco-friendly method.…”

Design of a Novel Nanosensors Based on Green Synthesized CoFe2O4/Ca-Alginate Nanocomposite-Coated QCM for Rapid Detection of Pb(II) Ions

“…It was then heated at 60 °C for 30 min. Afterward, the clove leaf extract was filtered and stored for future investigation [ 43 ].…”

Efficient Green Synthesis of (Fe3O4) and (NiFe2O4) Nanoparticles Using Star Anise (Illicium verum) Extract and Their Biomedical Activity against Some Cancer Cells

“…Star anise ( Illicium verum ) was purchased from a local market. To prepare the extract of star anise, we used the same procedure as reported previously [ 27 ]. The extract was filtered and centrifuged at 15,000 rpm before being used for the preparation of MNPs.…”