American Chemical Society, ACS Applied Materials and Interfaces, 13(6), p. 9937-9941, 2014
DOI: 10.1021/am502519x
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Hollow/porous nanoparticles, including nanocarriers, nanoshells, mesoporous materials have applications in catalysis, photonics, biosensing, and delivery of theranostic agents. Using a hierarchical template synthesis scheme, we have synthesized a nano-carrier mimicking a golf ball, consisting of i) solid silica core with a pitted gold surface and ii) a hollow/porous gold shell without silica. The template consisted of 100 nm polystyrene beads attached to a larger silica core. Selective gold plating of the core followed by removal of the polystyrene beads produced a golf ball-like nanostructure with 100 nm pits. Dissolution of the silica core produced a hollow/porous golf ball-like nanostructure.