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- W2969451193 abstract "Fe3O4 nanoparticles have been explored as highly efficient materials for heavy metal ion removal by adsorption process. In this contribution, a novel core–shell Fe3O4@SiO2 nanoparticle was prepared through chemical co-precipitation of SiO2@3-[2-(2-aminoethylamino)ethylamino]propyl-trimehoxysilane (AAAPTS) onto Fe3O4 magnetic nanoparticle surface. The structure and different properties of the synthesized nanocomposite were investigated using Fourier Transform Infrared Spectroscopy (FT-IR), X-Ray Diffraction (XRD), Field emission-scanning electron microscopy (FE-SEM), transmission electron microscope (TEM), Dynamic light scattering (DLS), and a Vibrating Sample Magnetometer (VSM). The results confirmed the successful preparation of magnetite nanocomposite and anchoring of Fe3O4 nanoparticles. To remove Gd (III) ion-containing Omniscan (gadodiamide) solution, the prepared Fe3O4@SiO2@AAAPTS nanoparticle was applied as a sorbent. The effects of different parameters on adsorption capacity, such as pH, acid concentration, the type and amount of adsorbent, and contact and ultrasonication times were optimized under optimum conditions. A limit of 1.4 ng L−1 was obtained for detection. The linear range was between 0.02 and 0.71 ng mL−1 with the relative SD of ±3.1% for the 8 replicates (0.07 ng mL−1) of Gd (III) based on this approach. The nanosorbent demonstrated cell compatibility at concentrations as high as 300 μg/mL. As a result, this method is believed to provide a wide application in the drug purification process of Magnetic resonance imaging (MRI) contrast agents such as Omniscan." @default.
- W2969451193 created "2019-08-29" @default.
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- W2969451193 date "2019-12-01" @default.
- W2969451193 modified "2023-09-25" @default.
- W2969451193 title "Microextraction of Gadolinium MRI contrast agent using core-shell Fe3O4@SiO2 nanoparticles: optimization of adsorption conditions and in-vitro study" @default.
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- W2969451193 doi "https://doi.org/10.1016/j.enmm.2019.100250" @default.
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