Many layers make light work: Layer-by-layer (LbL) self-assembly of a dendritic porphyrin (red; see picture) and poly(allylamine hydrochloride) (blue) on polystyrene nanoparticles followed by removal of the polystyrene core produces multifunctional hollow nanocapsules. These species can be both loaded with anticancer drugs and used in photodynamic therapy (PDT) and therefore have potential in combined cancer therapy.
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Son et al. (2011) studied this question.
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