TY - JOUR A1 - Thünemann, Andreas A1 - Bienert, Ralf A1 - Appelhans, Dietmar A1 - Voit, B. T1 - Core-shell structures of oligosaccharide-functionalized hyperbranched poly(ethylene imines) N2 - Hyperbranched poly(ethylene imine)s (PEIs) functionalized with maltose, maltotriose, and maltoheptaose form distinct core-shell globular nanoparticles as revealed by small-angle X-ray scattering (SAXS). The solution structures are quantified using the Beaucage unified exponential/power-law approach. SAXS results were confirmed with dynamic light scattering (DLS). We found that all PEI structures are completely insensitive to changes of temperature (5 °C < T < 80 °C) and pH (1 < pH < 10). This remarkable stability of a compact spherical polymeric structure makes the modified PEIs promising for a wide range of biomedical applications. KW - Colloids KW - Core-shell polymers KW - Nanoparticles KW - Polyamines KW - Small-angle X-ray scattering (SAXS) PY - 2012 U6 - https://doi.org/10.1002/macp.201100490 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2362 EP - 2369 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26975 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -