AbstractFresh or dried leaves of Moringa Oleifera (MO) are an excellent dietary supplement because they are rich in micronutrients. All parts of the tree are used in traditional medicine. In order to promote medicinal plants, a preliminary study using spectroscopic methods (UV-Vis - NIR absorption, transmission and fluorescence) was performed on extracts obtained from fresh leaves of Moringa Oleifera (MO) using different solvents. We also investigated the modification of the optical properties of the mixing of gold nanospheres with MO leaf extract and with a BSA biomolecule (Bovine Serum Albumin). Extractions from leaves contain chloroplasts which are natural bioactive chemicals that are a source of energy and contain carbon building blocks that have potential pharmaceutical uses. The change in the recorded UV–vis spectra would show that the interaction leads to the formation of nanoparticles-chloroplast complexes. The adsorption of gold nanospheres on chloroplasts would be a step toward developing bio-sensing and drug delivery.
Keywords: Biomedical, Gold Nanospheres, Moringa Oleifera, Plants, UV-Visible.