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Hydrophobicity of highly ordered nanorod polycrystalline nickel and silver surfaces

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journal contribution
posted on 20.09.2019, 10:59 authored by Jan Macko, Natália Podrojková, Radim Hrdý, Andrej Oriňak, Renáta Oriňaková, Jaromír Hubálek, Jaroslav Vojtuš, Zuzana Kostecká, Roger M Smith, Roger M. Smith
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.

History

School

  • Science

Department

  • Chemistry

Published in

Journal of Minerals and Materials Characterization and Engineering

Volume

7

Issue

5

Pages

279 - 293

Publisher

Scientific Research Publishing, Inc,

Version

VoR (Version of Record)

Rights holder

© the Authors

Publisher statement

This is an Open Access Article. It is published by Scientific Research Publishing, Inc, under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

Acceptance date

14/09/2019

Publication date

2019-09-17

Copyright date

© 2019

ISSN

2327-4077

eISSN

2327-4085

Language

en

Depositor

Prof Roger M. Smith

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