Shape auxiliary approach for carboxylate-functionalized gold nanocrystalsElectronic supplementary information (ESI) available: Detailed experimental procedures, SEM images of the gold residue using PHEMA and gold cuboctahedra using PDMAEMA, XPS survey scan of free PDMAEMA and gold nanoparticles, and pH-dependent changes of the optical properties. See DOI: 10.1039/b820220f

A shape auxiliary approach for the synthesis of shape-controlled gold nanocrystals with functional moieties is established; carboxylate-functionalized gold polyhedra were successfully synthesized in a one-pot reaction in the presence of poly(dimethylaminoethyl methacrylate), which contains the dimethylaminoethyl group as a shape auxiliary. [ABSTRACT FROM AUTHOR]