Objectives: The present investigation is based on the green synthesis of copper nanoparticles (CuNPs) from aqueous extract of Capparis spinosa L. fruit. Their effects on liver function and hematological parameters in mice were evaluated.
Materials and methods: The green synthesis of CuNPs by means of C. spinosa extract was achieved. Ultraviolet-visible spectroscopy, fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy were used to identify the synthesized nanoparticles. BALB/c mice were orally administrated CuNPs at doses of 1000, 2000, and 5000 μg/kg for 2 weeks. Later, the effects of CuNPs on liver function in the treated mice were evaluated by measuring the serum levels of enzymes such as alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, and bilirubin as well as hematological parameters including hemoglobin, hematocrit, white blood cell, red blood cell, and platelet counts.
Results: A maximum peak at wavelength 414 nm confirmed the biosynthesis of CuNPs. FTIR spectrum analysis revealed that the factor groups shaped a coating extract on the surface of the nanoparticles. SEM images demonstrated a particle size between 17 and 41 nm. Although some liver enzymes and hematological parameters increased with increasing dose of extract, there was no significant difference (p>0.05) between oral administrations of CuNPs at doses of 1000, 2000, and 5000 μg/kg and the control group.
Conclusion: The findings revealed that CuNPs biosynthesized from aqueous extract of C. spinosa fruit have no toxic effects on the liver functions and hematological parameters of mice. However, more studies are needed for evaluation of the hepatoprotective effects of CuNPs.
Keywords: BALB/c mice; Capparis spinosa; Nanoparticles; copper; hematology; liver.
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