Magnetically recoverable nano-zirconium(IV) complex: enhancement of antibacterial activity

Magnetically recoverable nano-zirconium(IV) complex: enhancement of antibacterial activity 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Magnetically recoverable nano-zirconium(IV) complex: enhancement of antibacterial activity

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Publisher
Springer Netherlands
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-016-2651-3
Publisher site
See Article on Publisher Site

Abstract

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.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jul 30, 2016

References

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