Liquid crystalline poly(propylene imine) dendrimer-based iron oxide nanoparticles.

ABSTRACT: Poly(propylene imine) dendromesogens (generations from 1 to 4) have been utilized for the synthesis and stabilization of ferrimagnetic Fe₂O₃ nanoparticles. Reduction of Fe(iii) with further oxidation of Fe(ii) results in the formation of highly soluble nanocomposites of iron oxides in a dendrimer, which are stable under a wide range of temperatures. The magnetic iron oxide nanoparticles were investigated by MALDI-ToF MS spectrometry and elemental analysis. To establish the type of mesophase, X-ray measurements were performed at different temperatures. The calculations of X-ray results demonstrate a hexagonal columnar packing of the molecules in the mesophase. Observation of the samples by TEM gives information about the size of the compounds as well as direct evidence

SUBMITTER: Gruzdev MS 

PROVIDER: S-EPMC9066696 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature