Polyvinylpyrrolidone coating for nanodiamond stabilization in saline solution and silver nanoparticle decoration

0560820 - FZÚ 2023 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Kolářová, Kateřina - Miliaieva, Daria - Stehlík, Štěpán
Polyvinylpyrrolidone coating for nanodiamond stabilization in saline solution and silver nanoparticle decoration.
NANOCON 2020. 12th International Conference on Nanomaterials - Research & Application. Conference proceedings. Ostrava: TANGER, 2021, s. 80-85. ISBN 978-80-87294-98-7. ISSN 2694-930X.
[International Conference NANOCON 2020 /12./. Brno (CZ), 21.10.2020-23.10.2020]
Grant CEP: GA MŠMT(CZ) EF16_019/0000760; GA MŠMT LM2018110
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: nanodiamonds * silver nanoparticles * colloid solution
Obor OECD: Nano-materials (production and properties)
https://www.confer.cz/nanocon/2020/read/3696-polyvinylpyrrolidone-coating-for-nanodiamond-stabilization-in-saline-solution-and-silver-nanoparticle-decoration.pdf

This work presents use of polyvinylpyrrolidone (PVP) for multipurpose coating of oxidized high-pressure high-temperature and detonation nanodiamonds. This simple way of nanodiamonds surface modification aims to improve their colloidal stability in biological environments and reduce their proneness to agglomeration. PVP immobilized on nanodiamond surface also provides for nanodiamond-supported AgNPs preparation by in situ synthesis using AgNO3 as a metallic nanoparticles precursor. Dynamic light scattering (DLS) and UV-vis spectroscopy were used for evaluation of nanoparticles size distribution and dispersibility in water and after exposition of nanoparticles in saline solution. Images acquired by scanning electron microscopy and transmission electron microscope validate the possibility of binding ~ 10 nm AgNPs to nanodiamonds surface.
Trvalý link: https://hdl.handle.net/11104/0333598