Papers by Author: J. Schäfer

Abstract: The preparation and charactersiation of novel gene vehicles based on synthetic organic silicon derivatives are which are formulated as solid lipid nanoparticles (SLN) and liposomes are investigated in the presented study. Physicochemical parameters and morphology were studied by photon correlation spectroscopy, zeta potential measurements (NanoZ Malvern) and Atomic Force Microscopy (Digital Nanoscope IV Bioscope), while the biological activity was determined using a standard in vitro transfection assay and corelated with established gene transfection systems.

Abstract: The preparation and charactersiation of novel lipid coated PLGA nanoparticles was investigated in the presented study. The size of the pure nanoparticles could be adjusted in dependence on the stabilizer content. The supported lipid bilayer surrounding the nanoparticles was formed by the liposome spreading technique. The Lipid- coated nanoparticles were characterised using Photon Correlation Spectroscopy (PCS) and atomic force microscopy (AFM) investigations. The bioadhesive properties was proofed in a cell culture model.