Bio-inspired multifunctional zinc oxide nanoparticles by leaf extract of Andrographis serpilifolia and their enhanced antioxidant, antimicrobial, and antidiabetic activity—a 3-in-1 system.

Autor: Kotakadi, Venkata S., Gaddam, Susmila Aparna, Kotha, Peddana, Allagadda, Rajesekhar, Rao Ch., Appa, D. V. R., Sai Gopal
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Zdroj: Particulate Science & Technology; 2022, Vol. 40 Issue 4, p485-499, 15p
Abstrakt: In this research article, we present a simple and rapid method for synthesis of zinc oxide nanoparticles (ZnONPs) using zinc acetate dehydrate, sodium hydroxide and leaf extract of an important anti-diabetic plant Andrographis serpelifolia (As). The results reveal that UV-visible absorption spectrum indicates peaks at 325 nm which confirms the biosynthesis of ZnONPs. Fourier transform infrared spectroscopy (FT-IR) results indicate the characteristic peak at 511.93 cm−1 for ZnO nanoparticles. EDX analysis revealed the purity of As-ZnONPs and the particle size was between 70 nm and 80 ± 10 nm by both dynamic light scattering analysis (DLS) and Transmission electron microscopy (TEM) analysis. The As-ZnONPs were moderately stable with negative zeta potential value −11.1 mV. Atomic force microscopy (AFM) analysis also revealed the same results as TEM and DLS. The x-ray diffraction (XRD) data revealed that the particles are facets of face-centered cubic crystal structure of ZnO. The As-ZnONPs have exhibited potential antioxidant activity and effective antibacterial activity against gram-positive bacteria. The As-ZnONPs have also potential anti-diabetic activity in vivo (rat model). The antidiabetic activity of As-ZnONPs comparable to that of the standard drug glibenclamide was evidenced by various biochemical parameters like HbA1C, serum lipid profiles, liver and renal functional markers. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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