Polyaniline–maghemite based dispersion: Electrical, magnetic properties and their cytotoxicity
Source abstract
Abstract
Abstract Polyaniline–maghemite (PANI–γ-Fe 2 O 3 ) based dispersion has been prepared in several steps. First, iron oxide nanoparticles with mixed-phase composition were synthesized by coprecipitation method. Second, obtained particles were transformed to γ-Fe 2 O 3 with sodium hypochlorite. Finally, aniline hydrochloride was in-situ polymerized with ammonium peroxydisulfate in the presence of γ-Fe 2 O 3 particles in aqueous solution of poly( N -vinylpyrrolidone). Colloidal PANI–γ-Fe 2 O 3 hybrid particles have average size of about 350 nm and the dispersity between 0.12 and 0.38. Hybrid dispersions with different concentration of conducting phase were characterized by electron microscopy, dynamic light scattering, UV–vis spectroscopy, thermogravimetric analysis, magnetization curve and conductivity measurements, as well as dielectric spectroscopy. Cytotoxicity on mouse embryonic fibroblast cell of PANI–γ-Fe 2 O 3 colloid has been investigated.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Conducting polymers and applications · Electrochemical sensors and biosensors · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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