Interactions of negatively charged O/W Microemulsion Droplets with Polyelectrolytes
Admixing polyelectrolytes to oppositely charged colloids allows to control structure and rheology of the system. Many applications use microemulsions as carriers for drug molecules, pollutants, reactants etc that otherwise couldn't be dispersed in the solvent. It is therefore of great importance to investigate the behavior of 'loaded carriers' as it can be different to that of normal (empty) micelles. Oil-in-water microemulsion droplets already contain a substantial amount of hydrophobic loading and can be studied in detail by SANS measurements, because of the good contrast conditions and having an appropriate size range. While previous studies focused on positively charged microemulsion droplets, we now want to investigate the interactions of negatively charged droplets with positively charged polyelectrolytes as this combination is much more relevant in biological systems. The important parameters to be addressed will be the charge density on the droplets and the nature of the polyelectrolyte, with a focus on biopolymers. The experiments shall give interesting insights into the complexation mechanism, as it is important for controlled uptake, delivery and release of the carriers.
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SIMON Miriam; BAYER Sebastian; GRADZIELSKI Michael; HOERMANN Anja; PRAUSE Albert; PREVOST Sylvain and SCHMIDT Robert Franz. (2020). Interactions of negatively charged O/W Microemulsion Droplets with Polyelectrolytes. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-571
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