The aim of this study was to evaluate the toxicological profile of biosurfactant encapsulated polymeric nanoparticles of Polylactic acid-Polyethylene glycol (PLA-PEG) in mice. Hematological, biochemical and histopathological samples of rodents were evaluated. Mice were selected randomly and divided into 3 treatment groups and one control group. Group I mice served as a control group, Group II were administrated with biosurfactant, Group III were treated with Polymeric nanoparticles of PLA-PEG. Group IV mice were injected with biosurfactant loaded polymeric nanoparticles of PLA-PEG. The formulations were administered intravenously via tail vein with 20 μg/mL dose concentration of biosurfactant. The normal control group was injected with only PBS. Blood samples were collected on 7th, 14th and 21st day and hematological and biochemical assays were performed. After the blood collection, mice were sacrificed for histopathological examination. The results showed that there were no significant difference in hematology parameter between the control and treated group. Some minute, non-significant changes were found in biochemical parameters which were not considered. Histopathological result of selected vital organs revealed that the biosurfactant and/or PLA-PEG polymeric nanoparticles can be considered as safe as no toxicological features were observed in histopathology of tissues. Hence, it can be deliberated that the biosurfactant encapsulated in PLA-PEG copolymeric nanoparticles are non toxic and can provide a safe, suitable platform for biomedical applications in future.
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