| 초록 |
Micron-sized polydiacetylene (PDA) liposome patterns have been fabricated on titanium (Ti) substrates using micro-contact printing (μ-CP) techniques. Two types of stamps (PDMS and agarose) and inking methods (“soaking” and “dropping”) are used for μ-CP, and we compare their effect on the morphology of the PDA patterns. When the agarose stamp is inked by the “dropping” method, PDA patterns are most efficiently transferred to the Ti substrate. However, the thickness of the transferred PDA patterns is not homogeneous, with the edge of the transferred pattern being thicker than its center. In contrast, when the PDMS stamp is used for μ-CP, the center of the pattern is thicker than the edge. Red fluorescence patterns are readily obtained by heat treatment of the PDA-immobilized solid substrate. |
