Development of Fe3O4-poly(l-lactide) magnetic microparticles in supercritical CO2

Synthesis, characterization and in vitro drug release of magnetic N-benzyl-O-carboxymethylchitosan nanoparticles loaded with indomethacin

“…1. In the IND spectrum the peak at 1692 cm À1 is characteristic of the carbonyl group, and is present in the spectra of all the drug-loaded magnetic nanoparticles with a slight shift, demonstrating that the drug was incorporated into the particles [21]. The Fe 3 O 4 /c-Fe 2 O 3 /IND spectrum presents three characteristic peaks at 597, 790, and 890 cm -1 related to the Fe-O bond, and two peaks at 1635 and 3420 cm -1 are related to the presence of moisture in the samples [22].…”

Co(II) anchored glutaraldehyde crosslinked magnetic chitosan nanoparticles (MCS) for synthesis of 2,4,5‐trisubstituted and 1,2,4,5‐tetrasubstituted imidazoles

“…Various polymeric materials have been used for the surface modification of magnetic nanoparticles. [37][38][39][40][41][42] So in continuation of our previous efforts towards a green environmental approach in heterogeneous catalysis, [43,44] in the work reported here we developed a simple and efficient method for the formation of MCSGT@Co(II) magnetic catalyst as shown in Scheme 1. We used chitosan as a material for the surface modification of Fe 3 O 4 magnetic nanoparticles due to its significant properties like ready availability, non-toxicity, biocompatibility, biodegradability, antibacterial property, low immunogenicity and chemical properties (polycationic, hydrophilicity, reactive groups, etc.…”

Supercritical fluid mediated synthesis of poly(2-hydroxyethyl methacrylate)/Fe3O4 hybrid nanocomposite

“…Products can be easily isolated as a dry powder by depressurization of CO 2 . In recent years, several polymer/inorganic filler nanocomposites have been successfully synthesized using scCO 2 [43][44][45][46].…”

“…Although polymer/inorganic filler nanocomposites have previously been successfully synthesized using scCO 2 [43][44][45][46], to the best of our knowledge, no work has been published on the preparation of polymer PHEMA and Fe 3 O 4 hybrid nanocomposite. In this work, for the first, nanocomposite consists of PHEMA as a shell and surface-modified Fe 3 O 4 as a core, which was prepared by dispersion polymerization in scCO 2 .…”