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Gold nanoparticle/poly(propyleneimine) (PPI) composite films comprising dendrimers of generation one to five are prepared via layer-by-layer self-assembly. The thickness of the films is determined by atomic force microscopy and ranges between 19 and 32nm. Field-emission scanning electron microscopy (FE-SEM) images show that the bulk of the films consist of nanoparticles with a diameter of about 4nm...
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