Вид документа : Статья из журнала Шифр издания : Г/S 98 Автор(ы) : Bakhteeva I. A., Medvedeva I. V., Byzov I. V., Konev A. S., Zhakov S. V., Uimin M. A., Demin A. M., Murzakaev A. M., Medvedeva O. M. Заглавие : Synthesis of Fe@C nanoparticles containing sulfo groups on their surfaces and study of their aggregation behavior in aqueous media Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 4. - С. 722-731 ББК : Г Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): magnetic nanoparticles--iron-carbon--benzenesulfonic acid--ir spectroscopy Аннотация: Magnetic iron nanoparticles (MNPs) encapsulated in a carbon shells and containing sulfo groups on the surface (Fe@C-SO3H) were synthesized. The aggregative stability of aqueous suspensions of the Fe@C-SO3H nanoparticles was studied in solutions of bovine serum albumin and calcium chloride and in phosphate-buffered saline, which simulate blood plasma. It is shown that the Fe@C-SO3H particles practically do not aggregate in the phosphate buffer saline for a long time (several days). On the contrary, MNPs encapsulated in a protein shells using ultrasonic treatment form aggregates up to 110–120 nm in size under these conditions. Suspensions of the Fe@C-SO3H particles are stable in aqueous solutions of calcium chloride in the range of the solid phase concentration between 0.05 and 0.10 g L−1. The results obtained indicate the possibility of using the functionalized Fe@C-SO3H nanoparticles in vitro experiments in biological media. Доп.точки доступа: Bakhteeva, I. A.; Medvedeva, I. V.; Byzov, I. V.; Konev, A. S.; Zhakov, S. V.; Uimin, M. A.; Demin, A. M.; Murzakaev, A. M.; Medvedeva, O. M.