Besides the inherent chirality, DNA is enriched by nitrogen and oxygen functional groups that are preferential to coordinate with transition metal ions, and its self-assembled structures, including the G-quadruplex, the i-motif, and the conventional Watson-Crick duplex etc., can be adjusted via base pairings such as Watson-Crick, reverse Watson-Crick, Hoogsteen, reverse Hoogsteen pairings, and so on. Recently biotemplating on the basis of DNA self-assembly has been considered as an attractive method to produce nanomaterials involving responsive nanomaterials, switchable nanomachines, controllable assembly of proteins or nanoparticles. There appear recently much more reports on nanomaterials and nanoclusters with distinct physicochemical properties modulated by structural interconversions of polymorphic DNA, in association with the metal-nucleic acid interactions. Here we reported a facile approach to synthesize Ag/Pd subnano clusters using DNA templates and found that guanine�rich (G-rich) DNA-templated Ag/Pd clusters exhibit extremely high catalytic activity for the reduction of 4-nitrophenol, suggesting the synergistic catalysis of DNA-templated subnano bimetallic clusters.

Synergistic catalysis of Ag/Pd bimetallic subnano clusters templated by DNA

247th National Meeting (2014)

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