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One-pot synthesis of surface roughness controlled hollow silica spheres with enhanced drug loading and release profile under ambient conditions in aqueous solutions.


ABSTRACT: A green one-pot approach is used to synthesize surface morphology controlled hollow silica spheres in aqueous solution under ambient conditions. Using cationic polystyrene particles as a template and aminopropyltriethoxysilane (APTES) as a structural directing agent, the surface roughness and wall thickness could be easily controlled by varying the concentration of tetraethoxysilane (TEOS). Smooth surface of hollow silica spheres with different wall thickness was obtained using anionic polystyrene particles. The resulted hollow silica spheres with rough surface had better performance in carrying and releasing a model drug.

SUBMITTER: Li D 

PROVIDER: S-EPMC3826452 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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