Hydrophobicity of highly ordered nanorod polycrystalline nickel and silver surfaces
Jan Macko
Natália Podrojková
Radim Hrdý
Andrej Oriňak
Renáta Oriňaková
Jaromír Hubálek
Jaroslav Vojtuš
Zuzana Kostecká
Roger M Smith
Roger M. Smith
2134/9884537.v1
https://repository.lboro.ac.uk/articles/journal_contribution/Hydrophobicity_of_highly_ordered_nanorod_polycrystalline_nickel_and_silver_surfaces/9884537
Highly ordered nickel and silver nanorods arrays prepared by alumina template assisted electrodeposition were investigated to determine the effect of
the array geometry on metal surface hydrophobicity and adhesion forces. The
nanorod geometry, clustering and pinning were used to characterize surface
hydrophobicity and its modulation. A contribution of metal crystallographic
orientation to the surface energy was calculated. To characterize nanorod array surface properties and elucidate the source of the particle adhesion effects
has been calculated. The dispersive components of surface tension D
S γ and
surface polarizability kS, as surface features that markedly characterize hydrophobicity and adhesion, were calculated. The highest hydrophobicity was
found for Ag nanorods with aspect ratio of 10 then Ni nanorods with aspect
ratio 10. The same geometry of nanorods particles resulted in different surface hydrophobicity and it was ascribed to the orientation of Ag and Ni crystals formed on the top of nanorods. Due to high hydrophobicity nanorod array surfaces could be used as an antifouling surface in medicine to select areas
on implant surface not to be colonized by cells and tissues.
2019-09-20 10:59:32
Nanorods
Silver
Nickel
Hydrophobicity
Surface energy
Crystallinity