Details

Autor(en) / Beteiligte

• Bakhteeva, Iu. A.
• Medvedeva, I. V.
• Byzov, I. V.
• Demin, A. M.
• Konev, A. S.
• Zhakov, S. V.
• Uimin, M. A.
• Murzakaev, A. M.
• Medvedeva, O. M.

Titel

Synthesis of Fe@C nanoparticles containing sulfo groups on their surfaces and study of their aggregation behavior in aqueous media

Ist Teil von

• Russian chemical bulletin, 2021-04, Vol.70 (4), p.722-731

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2021

Quelle

Springer Journals

Beschreibungen/Notizen

• Magnetic iron nanoparticles (MNPs) encapsulated in a carbon shells and containing sulfo groups on the surface (Fe@C-SO 3 H) were synthesized. The aggregative stability of aqueous suspensions of the Fe@C-SO 3 H 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-SO 3 H 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-SO 3 H 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-SO 3 H nanoparticles in vitro experiments in biological media.