Study of electrochemical behavior of the Fe3O4 nanoparticles in aprotic media

• Published in: Russian chemical bulletin Vol. 65; no. 3; pp. 697 - 703
• Main Authors: Kozitsina, A. N., Svalova, T. S., Glazyrina, T. A., Ivanova, A. V., Matern, A. I.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-03-2016; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Electrochemical analysis; Electrochemical oxidation; Electrolysis; Full Articles; Immunoassay; Inorganic Chemistry; Iron oxides; Nanoparticles; Organic Chemistry; cyclic voltammetry; magnetic nanoparticles; aprotic organic media; electrochemical conversion; Fe; O
• ISSN: 1066-5285; 1573-9171
• DOI: 10.1007/s11172-016-1359-2

Peculiarities of electrochemical behavior of the Fe
3
O
4
magnetic nanoparticles immobilized on the surface of a platinum electrode in aprotic organic media were investigated. Possible scheme of electrochemical behavior of nanoparticles depending on pre-electrolysis potential (–1.3,–2.5 V) was suggested. The effect of pre-electrolysis time, potential scan rate and nature of supporting electrolyte on the processes investigated was determined. A linear dependence of electrochemical oxidation signal
versus
the concentration of nanoparticles in modifying suspension in the concentration range of 0.05—0.5 g L
–1
was observed. The results of the performed research allow using magnetite nanoparticles as a direct signal-generating label in electrochemical immunoassay.