Synthesis of Silica-Based Core-Shell Nanoparticles and Their Magneto-Responsive Behaviors
발표자
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초록
내용
A variety of magneto-responsive nanoparticles (MNPs) have been extensively studied due to their significant promise in biomedical and pharmaceutical fields, including magnetic resonance imaging (MRI), drug delivery, and biosensors. In this presentation, we will show the core-shell MNPs, consisting of an iron oxide core and a silica shell, and discuss their magneto-responsive properties. The core was synthesized using a co-precipitation method, and the shell was fabricated by coating the core with silica via a sol-gel process, producing MNPs of approximately 100 nm in size. The successful coating to yield the silica shell was confirmed by FT-IR and EDS. The morphology, shape, size, and size distribution of the MNPs were characterized using SEM and DLS analysis. Additionally, their thermal properties and stability were determined by DSC and TGA. Finally, the magneto-rheological (MR) fluids with the MNPs were prepared, and their MR behaviors were examined under various magnetic fields.