E. D. Koshevaya, E. M. Shishmakova, A. V. Belousov, V. N. Morozov, M. A. Kolyvanova, O. V. Dement’eva, “Synthesis of hybrid Ta2O5@PDA/Au nanocomposites”, Mendeleev Commun., 2025, Volume 35, Issue 4,Pages 475

Communications

Synthesis of hybrid Ta₂O₅@PDA/Au nanocomposites

E. D. Koshevaya^a, E. M. Shishmakova^b, A. V. Belousov^a, V. N. Morozov^c, M. A. Kolyvanova^ac, O. V. Dement’eva^b

^a Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 123182 Moscow, Russian Federation
^b A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russian Federation
^c N. M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russian Federation

Abstract: Hybrid Ta₂O₅/Au nanoparticles (NPs) were synthesized by in situ radiolytic reduction of Au ions in tantalum oxide hydrosol. For efficient Au binding, Ta₂O₅NPs were preliminarily modified with a polydopamine (PDA) coating. This one-pot approach allows the monodispersed Au NPs to be directly anchored on the Ta₂O₅@PDA surface, which compares favourably with conventional multi-stage method for creation such structures.

Keywords: tantalum oxide, gold, hybrid nanoparticles, polydopamine coating, radiation synthesis.

Received: 01.11.2024
Accepted: 27.02.2025

Language: English

DOI: 10.71267/mencom.7672

	*Supplementary materials:*
		Supplementary_data_1.pdf	479.2 Kb