Synthesis of magnetite nanoparticles in the presence of aminoacids

✍ Scribed by Gabriela Marinescu; Luminita Patron; Daniela C. Culita; Cristian Neagoe; Costinel I. Lepadatu; Ioan Balint; Lotfi Bessais; Corneliu Bazil Cizmas

• Publisher: Springer Netherlands
• Year: 2006
• Tongue: English
• Weight: 284 KB
• Volume: 8
• Category: Article
• ISSN: 1388-0764
• DOI: 10.1007/s11051-006-9134-1

✦ Synopsis

A new synthesis route to prepare magnetite nanoparticles in only one step is described. The precipitation of magnetite is performed in the presence of aminoacid solution. The experimental protocol is original and the nanomagnetites are characterized by XRD, FTIR, TEM and SQUID magnetometry. A theoretical study of the consistent experimental results was performed using QSPR (Quantitative Structure Property Relationsheep). According with these studies the synthesized nanoparticles seem to be organized into a coreshell system, where the inner-core is formed from unit cells of magnetite. A way to control the self-assembly and the physical properties of the synthesized nanoparticles consists in their correlation with descriptors representing the aminoacid chemical structures. Using quantum chemical as well as the other simplest original descriptors it was found a relationship between the used aminoacids and the magnetization, nanoparticles diameter, magnetite core diameter and the (Fe 3 O 4 ) 8 cells in each nanoparticle core.