Abstract
Reaction of gaseous HCl with Eosin-Y disodium salt (Eosin-Y·2Na) nanorods nested inside anodic aluminum oxide templates (AAO), produced perforated Eosin-Y free acid (Eosin-Y-FA) nanorods with surface nanoholes on the order of 50 nm in diameter. Diffusion of different acids yielded different surface patterns with retention of the overall nanorod structure. Also, different pattern formation was observed for different templated organic acid salts/inorganic acid interactions.