Figure 2From: Intranasally administered protein coated chitosan nanoparticles encapsulating influenza H9N2 HA2 and M2e mRNA molecules elicit protective immunity against avian influenza viruses in chickensScanning Electron Microscopic characterization of CNPs decorated with HA2 and M2e recombinant proteins and mRNA. A Field Emission Scanning Electron Microscope (FESEM) analysis of empty CNPs, RNA-CNPs, protein-CNPs, and RNA–protein CNPs. Each specimen was observed at 100 K magnification. B Particle size distribution was determined from randomly selected 100 particles on each image. Particle size was measured in “nm”.Back to article page