In this study, antibacterial activity of a zirconium(IV)–Schiff base ligand [Schiff base = N,N′-bis(3-salicylidenaminopropyl)amine] was examined via the paper disk diffusion method against Escherichia coli (gram-negative bacterium) and Bacillus subtilis (gram-positive bacterium). In the next step, a magnetically recoverable analog of this compound was synthesized by covalent grafting of the Schiff base ligand onto modified silica-coated magnetic nanoparticles. The synthesis was accomplished by the complexation of these magnetically recoverable nanoparticles with Zr(acac)4. The newly synthesized particles were characterized by FT-IR, XRD, TGA–DSC, XRF, TEM, FE-SEM, and VSM, and then screened against bacteria. The results indicated the significant increased activity of zirconium complex grafted onto nanomagnetite particles. Moreover, as the particles were superparamagnetic, they could be easily recovered from the reaction matrix by use of a permanent magnet.
Research on Chemical Intermediates – Springer Journals
Published: Jul 30, 2016
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