About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPG-7: A Novel Zinc Oxide (ZnO) Nanostructured Layer Coated onto Medical Grade Polyurethane for Controlled Surface Degradation |
Author(s) |
Maren K. Fossum, Muhammad Ibrahim, Zozan Tunc, Javier Sanchez, Emma Strömberg, Gunilla Björling, Ragnhild E. Aune |
On-Site Speaker (Planned) |
Maren K. Fossum |
Abstract Scope |
In the present study substrates of medical grade polyurethane (aliphatic carbothane with 20 wt-% barium sulphate loading) were produced in an isostatic press and later coated with novel zinc oxide (ZnO) nanoparticles synthesised as nanoroads. A hydrothermal technique combined with annealing were used to synthesis the nanoroads dispersed onto the surface of the substrate at 0.3wt-% through plasma-assisted deposition. The chemical composition, surface topography, thickness, scratch resistance, hydrophobicity and adhesion performance of the coating were investigated and evaluated against an uncoated control. Moreover, the chemical stability of the coating was investigated by exposing the coated and uncoated substrates to Phosphate-buffered saline and whole blood in a modular testbed, allowing the substrates to be exposed to gentle rocking simulating the flow of blood through the veins in the human body. The obtained results proved that an increased control of the surface topography and degradation rate was obtained under in-vitro environmental conditions. |
Proceedings Inclusion? |
Undecided |