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Poly( p ‐phenylenediamine)‐coated magnetic particles: Preparation and electrochemical properties
Author(s) -
TenórioNeto Ernandes Taveira,
Baraket Abdoullatif,
Guilherme Marcos Rogério,
LimaTenório Michele Karoline,
Lelong Quentin,
Zine Nadia,
Errachid Abdelhamid,
Fessi Hatem,
Elaissari Abdelhamid
Publication year - 2019
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4634
Subject(s) - materials science , superparamagnetism , magnetic nanoparticles , fourier transform infrared spectroscopy , polymer , nanoparticle , particle size , magnetization , chemical engineering , nanotechnology , analytical chemistry (journal) , magnetic field , chromatography , composite material , chemistry , physics , quantum mechanics , engineering
Magnetic particles are of great interest in various biomedical applications, such as, sample preparation, in vitro biomedical diagnosis, and therapy. For biosensing applications, the used functional magnetic particles should answer numerous criteria such as; submicron size in order to avoid rapid sedimentation, high magnetic content for fast separations under applied magnetic field, and finally, good colloidal stability. Therefore, the aim of this work was to prepare submicron magnetic core and conducting polymer shell particles. The polymer shell was induced using p ‐phenylenediamine as key monomer. The obtained core–shell particles were characterized in terms of particle size, size distribution, magnetization properties, Fourier transform infrared (FTIR) analysis, surface morphology, chemical composition, cyclic voltammetry, and impedance spectroscopy. The best experimental condition was found using 40 mg of povidone (PVP—stabilizing agent) and 0.16 mmol of p ‐phenylenediamine. Using such initial composition, the core‐shell magnetic nanoparticles shown a narrowed size distribution around 290 nm and high magnetic content (above 50%). The obtained amino containing submicron highly magnetic particles were found to be a conducting material and superparamagnetic in nature. These promising conducting magnetic particles can be used for both transport and lab‐on‐a‐chip detection.