Nanostructures formed by self-assembly of negatively charged polymer and cationic surfactants.
The formation of nanoparticles by interaction of an anionic polyelectrolyte, sodium polyacrylate (NaPA), was studied with a series of oppositely charged surfactants with different chain lengths, alkyltrimethylammonium bromide (CnTAB). The binding and formation of nanoparticles was characterized by dynamic light scattering, zeta-potential, and self-diffusion NMR. The inner nanostructure of the particles was observed by direct-imaging cryogenic-temperature transmission electron microscopy (cryo-TEM), indicating aggregates of hexagonal liquid crystal with nanometric size.
Nizri
G
G
Casali Institute of Applied Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
Makarsky
A
A
Magdassi
S
S
Talmon
Y
Y
D000838:Anions / Q000737:chemistry; D002412:Cations / Q000737:chemistry; D020285:Cryoelectron Microscopy; D004058:Diffusion; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*
D000838:Anions; D002412:Cations; D011108:Polymers; D013501:Surface-Active Agents