Liposomes as nanoreactors for the photochemical synthesis of gold nanoparticles

A simple and novel method for the photochemical synthesis of AuNPs in liposomes is described. Gold salt is co-encapsulated with the photoinitiator Irgacure-2959 in POPC liposomes prepared via traditional thin-film hydration technique. UVA irradiation for 15 min results in encapsulated AuNPs of 2.8 ± 1.6 nm in diameter that are primarily dispersed in the aqueous interior of the liposomes.

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