Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.1016/j.colsurfa.2022.129090

Ключевые слова: coprecipitation, glycine, iron oxide, maghemite, magnetic nanoparticles, magnetite, mössbauer spectroscopy

Аннотация: Iron oxide magnetic nanoparticles (MNPs) are of interest in biomedicine and research owing to their moderate cytotoxicity and advanced properties, such as extensive surface-to-volume ratio and possibilities for tailoring their functionality through surface chemistry. To date, various approaches have been used for the synthesis of MПоказать полностьюNPs with controllable structural properties and various coatings to enhance their stability and functionality. This study describes a modified one-step method of coprecipitation in the presence of glycine allowing the production of particles with controllable size and in situ surface decoration. The effect of different glycine concentrations on the morphostructural and magnetic properties of iron oxide MNPs is studied. The particle size is reduced from 10.2 ± 0.3 to 7.2 ± 0.5 nm by increasing the glycine concentration from 0.06 up to 0.60 mol. The magnetic properties of obtained particles were tracked by SQUID magnetometry and Mössbauer spectroscopy. All samples of glycine capped iron oxide MNPs showed superparamagnetic behaviour at room temperature with maximal value of the saturation magnetization of 69 ± 4 Am2/kg. The results show the optimal concentration range of glycine which can be used in this method: a lower concertation than 0.15 mol does not affect the properties of obtained particles while higher concentrations than 0.3 mol lead to the reduction of magnetic properties (the saturation magnetisation reduces to 59 ± 3 Am2/kg when glycine concentration was 0.6 mol). The proposed economic and environment-friendly approach can be utilized to synthesise –NH2 functionalised MNPs for biomedical or wastewater treatment. © 2022 Elsevier B.V.

Журнал: Colloids and Surfaces A: Physicochemical and Engineering Aspects

Выпуск журнала: Vol. 647

Номера страниц: 129090

ISSN журнала: 09277757

Издатель: Elsevier B.V.

• Omelyanchik A. (Immanuel Kant Baltic Federal University, Kaliningrad, Russian Federation, Department of Chemistry and Industrial Chemistry (DCIC), University of Genova, Genova, Italy)
• Kamzin A.S. (Ioffe Institute of Russian Academy of Science (RAS), St. Petersburg, Russian Federation)
• Valiullin A.A. (Kazan Federal University, Kazan, Russian Federation)
• Semenov V.G. (St. Petersburg State University, St. Petersburg, Russian Federation)
• Vereshchagin S.N. (Institute of Chemistry and Chemical Technology, Federal Research Center Siberian branch RAS, Krasnoyarsk, Russian Federation)
• Volochaev M. (Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation, Siberian Federal University, Krasnoyarsk, Russian Federation)
• Dubrovskiy A. (Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation)
• Sviridova T. (The National University of Science and Technology MISIS, Moscow, Russian Federation)
• Kozenkov I. (Immanuel Kant Baltic Federal University, Kaliningrad, Russian Federation)
• Dolan E. (Department of Chemistry and Industrial Chemistry (DCIC), University of Genova, Genova, Italy)
• Peddis D. (Department of Chemistry and Industrial Chemistry (DCIC), University of Genova, Genova, Italy, Institute of Structure of Matter–CNR, Monterotondo Stazione, Rome, 00016, Italy)
• Sokolov A. (Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation, Siberian Federal University, Krasnoyarsk, Russian Federation)
• Rodionova V. (Immanuel Kant Baltic Federal University, Kaliningrad, Russian Federation)

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