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

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:429

Article

Uudekll, Peep¹  Kozlova, Jekaterina¹  Mandar, Hugo¹  Link, Joosep³  Sihtmae, Mariliis²  Kaosaar, Sandra^2,4  Blinova, Irina²  Kasemets, Kaja²  Kahru, Anne²  Stern, Raivo³  Tatte, Tanel¹  Kukli, Kaupo^1,5  Tamm, Aile¹ 

[1] Univ Tartu, Inst Phys, W Ostwaldi Str 1, EE-50411 Tartu, Estonia

[2] NICPB, Lab Environm Toxicol, Akad Tee 23, EE-12618 Tallinn, Estonia

[3] NICPB, Chem Phys Lab, Akad Tee 23, EE-12618 Tallinn, Estonia

[4] Tallinn Univ Technol, Fac Chem & Mat Technol, Ehitajate Tee 5, EE-19086 Tallinn, Estonia

[5] Univ Helsinki, Dept Chem, POB 55, FI-00014 Helsinki, Finland

关键词: Nickel mesoparticles;    Atomic layer deposition (ALD);    Titanium dioxide coatings;    Magnetical characterization;    Safety;   

DOI  :  10.1016/j.jmmm.2017.01.045

来源: Elsevier

【 摘 要 】

Spherical nickel particles with size in the range of 100-400 nm 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.

【 授权许可】

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