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Unconventional Chain-Growth Mode in the Assembly of Colloidal Gold Nanoparticles


  • The authors thank the MOE (ARC 13/09) and NRF (CRP-4-2008-06) of Singapore for financial supports.


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One-dimensional assembly of gold nanoparticles (see picture)is achieved by a sphere-to-cylinder transformation of polymer shells. A large amount of monomers remains after the assembly, which is characteristic of the chain-growth “polymerization”. Single-line chains can be converted to double-line chains, thus substantiating the unique role of the polymer shell.