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- W2017557584 abstract "The synthesis of ultrafine gold nanoparticles in presence of maltose-modified hyperbranched poly(ethyleneimines) (PEI) is described. The polymer acted as both a reducing and stabilising agent in the particle formation process. The nanoparticles were characterized by means of dynamic light scattering (DLS), transmission electron microscopy (TEM), analytical ultracentrifugation (AUC), small-angle x-ray scattering (SAXS), and small-angle neutron scattering (SANS). The mechanism of nanoparticle formation can be described in two steps. The reduction process of the Au3+ ions located in the inner coil region of the hyperbranched PEI led to the formation of a compact gold core, and is accompanied by a collapse of the polymer coil. Therefore, in the subsequent reduction process a gold-polymer hybrid shell is formed. By using the PEI of higher molar mass, core-shell gold nanoparticles of about 3.6 nm size with a more narrow size distribution and special fluorescence behavior could be synthesized." @default.
- W2017557584 created "2016-06-24" @default.
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- W2017557584 date "2012-01-01" @default.
- W2017557584 modified "2023-10-16" @default.
- W2017557584 title "Synthesis of Core-Shell Gold Nanoparticles with Maltose-Modified Poly(Ethyleneimine)" @default.
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- W2017557584 doi "https://doi.org/10.1080/01932691.2010.530084" @default.
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