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- Title
New 3D Vortex Microfluidic System Tested for Magnetic Core-Shell Fe 3 O 4 -SA Nanoparticle Synthesis.
- Authors
Niculescu, Adelina-Gabriela; Munteanu, Oana Maria; Bîrcă, Alexandra Cătălina; Moroșan, Alina; Purcăreanu, Bogdan; Vasile, Bogdan Ștefan; Istrati, Daniela; Mihaiescu, Dan Eduard; Hadibarata, Tony; Grumezescu, Alexandru Mihai
- Abstract
This study's main objective was to fabricate an innovative three-dimensional microfluidic platform suitable for well-controlled chemical syntheses required for producing fine-tuned nanostructured materials. This work proposes using vortex mixing principles confined within a 3D multilayered microreactor to synthesize magnetic core-shell nanoparticles with tailored dimensions and polydispersity. The newly designed microfluidic platform allowed the simultaneous obtainment of Fe3O4 cores and their functionalization with a salicylic acid shell in a short reaction time and under a high flow rate. Synthesis optimization was also performed, employing the variation in the reagents ratio to highlight the concentration domains in which magnetite is mainly produced, the formation of nanoparticles with different diameters and low polydispersity, and the stability of colloidal dispersions in water. The obtained materials were further characterized by X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, dynamic light scattering (DLS), and transmission electron microscopy (TEM), with the experimental results confirming the production of salicylic acid-functionalized iron oxide (Fe3O4-SA) nanoparticles adapted for different further applications.
- Subjects
NANOPARTICLE synthesis; IRON oxides; MAGNETITE; MAGNETIC testing; NANOSTRUCTURED materials; MAGNETIC nanoparticles; IRON oxide nanoparticles
- Publication
Nanomaterials (2079-4991), 2024, Vol 14, Issue 11, p902
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano14110902