Silver-polydiacetylene core-shell nanohybrids: From nano to mesoscale architectures

Spectroscopic and microscopic measurements show that 10,12-pentacosadiynoic acid is able to densely adsorb on the surface of silver nanoparticles by properly selecting the synthesis procedure. Its subsequent polymerization by UV irradiation under controlled photochemical conditions produces the blue form of poly(pentacosa-10,12-diynoic acid). The resulting nanohybrids are very stable in aqueous suspension and exhibit a bilayered, core-shell architecture. We propose a model of the polyPCDA self-assembled on silver nanoparticles and we evaluate the surface coverage density.