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Multivalent catalysts for the cleavage of nucleic acids and their models.

Multivalent systems, i.e. systems presenting a discrete collection of several functional groups, are well recognized for their ability to increase binding constants. Less explored is their use as catalysts. We present a number of multivalent nanostructures based on self-assembled gold nanoparticles and dendrimers, which are particularly efficient in the cleavage of nucleic acids and their models.