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

0560820 - FZÚ 2023 RIV CZ eng C - Conference Paper (international conference)
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]
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA MŠMT LM2018110
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : nanodiamonds * silver nanoparticles * colloid solution
OECD category: 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.
Permanent Link: https://hdl.handle.net/11104/0333598