Superparamagnetic iron oxide nanoparticles (SPIONs) are promising contrast agents for imaging-guided cancer therapies. However, challenges such as the requirement for a high alternating magnetic field (AMF), dosage limitations, and suboptimal imaging contrast have hindered their practical applications. First, the optimal doping ratio of Mn and Zn in MnZnFeO nanoparticles synthesized using a modified high-temperature thermal decomposition method (mHTTD) was determined.
View Article and Find Full Text PDFCurrently, research on superparamagnetic iron oxide nanoparticles (SPIONs) for magnetic hyperthermia applications is steadily increasing. In this work, SPIONs were synthesized by the bromide-assisted polyol method and angle-shaped SPIONs were successfully generated with the optimized concentration of bromide. The influence of bromide concentration on the shape of the generated SPIONs as well as the heating characteristics under an alternating magnetic field (AMF) was thoroughly investigated.
View Article and Find Full Text PDFFront Bioeng Biotechnol
September 2021
Uniform-sized iron oxide nanoparticles obtained from the solution phase thermal decomposition of the iron-oleate complex were encapsulated inside the silica shell by the reverse microemulsion technique, and then thermal treatment under NH to transfer the iron oxide to iron nitride. The transmission electron microscopy images distinctly demonstrated that the as-prepared iron nitride at silica core/shell nanostructures were highly uniform in particle-size distribution. By using iron oxide nanoparticles of 6.
View Article and Find Full Text PDFAmong the number of hyperthermia materials, magnetic nanoparticles have received much attention. In this work, we studied the heating characteristics of uniform Fe@FeO core-shell nanoparticle under near-infrared laser irradiation and external AC magnetic field applying. The Fe@FeO core-shell nanoparticles were prepared by thermal decomposition of iron pentacarbonyl and followed by controlled oxidation.
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