Potential in-vitro antioxidant and anti-inflammatory activity of Martynia annua extract mediated Phytosynthesis of MnO2 nanoparticles

Abstract

The present research work describes the phyto-synthesis of Manganese dioxide nanoparticles (MnO 2 NPs) from the reduction of potassium permanganate using Martynia annua ( M.annua ) plant extract. From the literature review, we clearly understood the M.annua plant has anti-inflammatory activity. Manganese dioxides are important materials due to their wide range of applications. Their increased surface area gives them distinct capabilities, as it increases their mechanical, magnetic, optical, and catalytic qualities, allowing them to be used in more pharmaceutical applications. A detailed review of literature highlighting the issues related to this present work and its knowledge gap that none of the inflammatory activities had been done by MnO 2 NPs synthesized from M.annua plant extract. So we selected this study. The product MnO 2 NPs showed the wavelength centre at 370 nm and was monitored by UV-Vis spectra. The wave number around 600 cm −1 has to the occurrence of O–Mn–O bonds of pure MnO 2 confirmed by FTIR spectroscopy. Transmission electron microscopy images showed the morphology of MnO 2 NPs as spherical-shaped particles with average sizes at 7.5 nm. The selected area electron diffraction analysis exhibits the crystalline nature of MnO 2 NPs. The obtained MnO 2 NPs showed potential antioxidant and anti-inflammatory activity was compared to the plant extract. The synthesized MnO 2 NPs have a large number of potential applications in the field of pharmaceutical industries. In the future, we isolate the phytocompounds present in the M.annua plant extract and conduct a study against corona virus. MnO 2 produces manganese (III) oxide and oxygen, which increases fire hazard. But further research is required to understand their environmental behaviour and safety.

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