Magnetic nanoparticle with high efficiency for bacteria and yeast extraction from contaminated liquid media
(2017) Journal of the Taiwan Institute of Chemical Engineers — Vol. 71, p. 62-68 (2017)
Files
Ghazzal-2017-Magneticnanoparticlewithhighefficiency.pdf
Restricted Access - Adobe PDF
- 1.93 MB
Details
- Authors
- Abstract
- Magnetic nanoparticles with a disordered cation vacancies show a rapid and high efficiency extraction for microorganism, such as bacteria Gram-positive (Staphylococcus aureus and Bacillus Cereus) or Gram-negative (Escherichia Coli) and yeast (Candida albicans). The magnetic nanoparticles were obtained from variable molar ratio of ferrite and ferric ions. X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy has been used to identify the structure and the composition of the iron oxides. The as prepared nanoparticles show better efficiency of bacteria and yeast extraction than commercial magnetite or maghemite nanoparticles. A removal as high as 95% of the nanoparticles for bacteria Gram-positive and yeast was achieved without any need of the surface functionalization. The pH of the media has no effect of the bacteria-magnetic nanoparticle binding. This suggested that the link created is not electrostatic.
- Affiliations
Citations
Ghazzal, M., Goffin, J., Gaigneaux, E., & Nizet, Y. (2017). Magnetic nanoparticle with high efficiency for bacteria and yeast extraction from contaminated liquid media. Journal of the Taiwan Institute of Chemical Engineers, 71, 62-68. https://doi.org/10.1016/j.jtice.2016.12.030 (Original work published 2017)