초록 |
Nano-sized polymer particles have found applications in diverse areas ranging from sensing to catalysis and drug delivery. However, most of the research is still focused on particles of spherical shape. This is due to the fact that synthetic access to non-spherical particles with size uniformity is highly restricted. Hence, we seek to develop a fabrication scheme that will lead to formation of nanoparticles having a cylindrical shape and uniform and tunable sizes (25-200nm). Access to such particles with predetermined dimensions will open up a number of new vistas, especially in the biomedical arena. We propose to achieve this goal by producing nanostructured cylindrical arrays in a polymer thin film through self-assembly of two unlike polymer sequences. The organized cylindrical structures will be covalently stabilized by a photochemical crosslinking reaction and then released from the host polymer matrix. |