Cluster-Assembled Nanostructured Titanium Oxide Films with Tailored Wettability

Podestà, A., Bongiorno, G., Scopelliti, P. E., Bovio, S., Milani, P., Semprebon, Ciro and Mistura, G. (2009) Cluster-Assembled Nanostructured Titanium Oxide Films with Tailored Wettability. The Journal of Physical Chemistry C, 113 (42). pp. 18264-18269. ISSN 1932-7447

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Official URL: http://dx.doi.org/10.1021/jp905930r

Abstract

We report on the production of cluster-assembled nanostructured titanium oxide (ns-TiOx) surfaces with tailored wettability properties. The contact angle of the ns-TiOx surfaces changes in a controllable and reproducible way by changing the morphology through the roughness and/or with annealing the films in air at different temperatures. With increasing the annealing temperature, reversible switching from hydrophobic to hydrophilic behavior can be obtained, due to the removal of organic contaminants and to the increase of surface hydroxyl groups, while control of surface morphology allows fine-tuning of the contact angle within a given wetting regime. Thanks to the possibility of regulating and controlling the surface wettability, ns-TiOx thin films are very promising substrates for protein microarray applications where a reproducible control on protein spot dimension is required.

Item Type: Article
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 23 May 2018 14:38
Last Modified: 23 May 2018 14:38
URI: http://nrl.northumbria.ac.uk/id/eprint/34345

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