Atomic layer deposition of titanium oxide films on As-synthesized magnetic Ni particles: Magnetic and safety properties

Spherical nickel particles with size in the range of 100–400nm were synthesized by non-aqueous liquid phase benzyl alcohol method. Being developed for magnetically guided biomedical applications, the particles were coated by conformal and antimicrobial thin titanium oxide films by atomic layer depos...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2017-05, Vol.429, p.299-304
Main Authors: Uudeküll, Peep, Kozlova, Jekaterina, Mändar, Hugo, Link, Joosep, Sihtmäe, Mariliis, Käosaar, Sandra, Blinova, Irina, Kasemets, Kaja, Kahru, Anne, Stern, Raivo, Tätte, Tanel, Kukli, Kaupo, Tamm, Aile
Format: Article
Language:English
Subjects:
Atomic layer deposition (ALD)
Atomic layer epitaxy
Atomic structure
Benzyl alcohol
Biocompatibility
Biomedical materials
Chemical synthesis
Coated particles
Crustaceans
Crystal structure
Magnetic fields
Magnetic properties
Magnetical characterization
Microorganisms
Nickel
Nickel mesoparticles
Oxide coatings
Safety
Studies
Surgical implants
Thin films
Titanium
Titanium dioxide coatings
Titanium oxide powders
Toxicology
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Summary:Spherical nickel particles with size in the range of 100–400nm were synthesized by non-aqueous liquid phase benzyl alcohol method. Being developed for magnetically guided biomedical applications, the particles were coated by conformal and antimicrobial thin titanium oxide films by atomic layer deposition. The particles retained their size and crystal structure after the deposition of oxide films. The sensitivity of the coated particles to external magnetic fields was increased compared to that of the uncoated powder. Preliminary toxicological investigations on microbial cells and small aquatic crustaceans revealed non-toxic nature of the synthesized particles.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2017.01.045