Figure 6. Increased powder OVA delivery in the presence of small sugar excipients.
Powder OVA-coated array patches in the presence or absence of mannitol, sucrose, or trehalose at a 1:25 mass ratio were topically applied onto AFL-generated skin MCs. Patches were removed 24 hours later and patch pictures before and after delivery were taken. Experiments were repeated 3 times and representative patch pictures were shown. Scale: 667μm.