Figure 5From: Intranasally administered protein coated chitosan nanoparticles encapsulating influenza H9N2 HA2 and M2e mRNA molecules elicit protective immunity against avian influenza viruses in chickensIn vitro and in vivo safety evaluation of CNPs. A Hemolysis assay in chicken RBCs: 1. PBS control; 2–6, increasing concentrations of CNPs; 7, Triton-X 100 control. B Microscopy images of chicken RBCs incubated with PBS, different concentrations of CNPs, or Triton-X 100. C Effect of CNPs on chicken lungs. Chickens (n = 3 in each group) were intranasally administered with either PBS or CNPs, and after 5 days, their lungs were analyzed for histological changes. The experiment was repeated thrice. The results shown represent one independent experiment.Back to article page