Bioactive Synthesis of Silver Nanoparticles Using Leaf Extract of Indigofera oblongifolia; Characterization, Antimalaria Activities

[Síntese bioativa de nanopartículas de prata usando extrato de folhas de Indigofera oblongifolia; caracterização e atividades antimaláricas]

ABSTRACT

The use of biosynthesized nanoparticles is one of the broad research areas where silver nanoparticles (AgNPs) have anti-parasitic disease properties. The biological synthesis of silver (AgNPs) nanoparticles using methanolic extracts of the Indigofera oblongifolia leaf was evaluated. Gas chromatography-mass spectrometry (GC-MS) analysis, total of phenolics, and flavonoids, and MTT assay were used. In addition, UV-visible spectrophotometry, and TEM analysis. produced was stable and simple-to-synthesize AgNPs by UV light radiation. Classes of compounds expected to be biologically active were identified in the extract. Also, Quantitative results showed phenolics and flavonoids at 219 ± 1.079, and 19 ± 0.150 (mg TAE/g DW), respectively. Moreover, IC50 was obtained at 151.569 ± 8.5 ng/mL for Hep-G2 cell lines. Examination of IOLEAgNPs using transmission electron microscopy (TEM) showed that the nanoparticles were spherical with a smooth surface, which indicates that the prepared nanostructure content is highly pure with good morphology. Silver nanoparticles synthesized using leaf extract (AgNPs-leaf) were characterized by UV-visible spectrophotometry. Its activities have been tested as anti-malaria. OILEAgNPs were able to reduce parasitemia.

Keywords:
biosynthesized; spectroscopy; MTT; flavonoids