This study aims to further explore the synthesis, characterization, encapsulation, and biomedical applications of Adansonia digitata Baobab nanoparticles.Using a nano-precipitation technique, Gum Arabic and Polyvinyl alcohol were added to the nanoparticles that had been synthesized using the sonochemical process. Transmission electron microscopy was used to determine the physico-chemical properties of the synthesized and encapsulated nanoparticles, providing information about their morphology. Fourier Transform Infrared (FTIR) spectroscopy was employed to examine the chemical functional groups present in the samples.The particle sizes of ADNPs and Cap-ADNPs were verified by dynamic light scattering (DLS) analysis. While encapsulated Cap-ADNPs had a greater average size of around 230 nm with a PDI of 0.311, the average particle size for ADNPs was approximately 94 nm with a PDI of 0.208. Tests were conducted on the antibacterial activity of ADNPs and Cap-ADNPs against a range of specific Gram-positive and Gram-negative bacteria as well as certain fungi. Additionally, the nanoparticles' cytotoxicity toward human colon cancer cells (HCT-116) and human breast cancer cells (MCF-7) was assessed. With an IC50 of 73.6 mg/ml, ADNPs showed modest inhibitory action against HCT-116 cells; in contrast, Cap-ADNPs had a significantly greater impact, with an IC50 of 34.1 mg/ml. With an IC50 of 18.3 mg/ml, Cap-ADNPs have shown exceptional potency against MCF7 cells, whereas ADNPs had moderate inhibitory effects, with an IC50 of 64.7 mg/ml. According to preliminary findings, ADNPs and Cap-ADNPs have a great deal of promise to be effective therapeutic options in upgraded forms for use in bio-nanomedicine.