초록 |
Bifunctionalized polymer nanotubes were fabricated using vapor-deposition polymerization in FeCl3-adsorbed anodic aluminum oxide membranes followed by attachment of amine-functionalized silica nanoparticles. The bifunctionalized polymer nanotubes were used as both a molecular probe and a DNA carrier by conjugating pyreneacetic acid with the amine groups and immobilizing DNA with the carboxylic acid groups on the surface. The number of amine functional groups on the nanotube surface was measured by means of the photoluminescence intensity of pyreneacetic acid conjugated with amine groups, and the number of the residual carboxylic acid groups was calculated by titration with NaOH. FT-IR, XPS, TEM, SEM, and CLSM have been performed to confirm the complete polymerization and the attachment of photoluminescent molecule and DNA. |