RT Journal Article
T1 Self-Assembly of Au-Fe3O4 Hybrid Nanoparticles Using a Sol–Gel Pechini Method
A1 Ovejero, Jesús G.
A1 Garcia, Miguel A.
A1 Herrasti, Pilar
AB The Pechini method has been used as a synthetic route for obtaining self-assembling magnetic and plasmonic nanoparticles in hybrid silica nanostructures. This manuscript evaluates the influence of shaking conditions, reaction time, and pH on the size and morphology of the nanostructures produced. The characterization of the nanomaterials was carried out by transmission electron microscopy (TEM) to evaluate the coating and size of the nanomaterials, Fourier-transform infrared spectroscopy (FT-IR) transmission spectra to evaluate the presence of the different coatings, and thermogravimetric analysis (TGA) curves to determine the amount of coating. The results obtained show that the best conditions to obtain core–satellite nanostructures with homogeneous silica shells and controlled sizes (<200 nm) include the use of slightly alkaline media, the ultrasound activation of silica condensation, and reaction times of around 2 h. These findings represent an important framework to establish a new general approach for the click chemistry assembling of inorganic nanostructures.
PB MDPI
SN 1420-3049
YR 2021
FD 2021-11-17
LK https://hdl.handle.net/20.500.14352/5063
UL https://hdl.handle.net/20.500.14352/5063
LA eng
NO Ministerio de Ciencia e Innovación (España)
DS Docta Complutense
RD 5 may 2024