Data · dataset · 2026
Antimicrobial metals and metal-based particles for biomedical applications
Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.17034/32634951.v1
Titanium and titanium alloys have emerged as excellent candidates for use as orthopaedic implants, such as hip and knee arthroplasties (joint replacements).
Description
Two of the most common causes of implant failure include infection and aseptic loosening, which is caused by a lack of biological compatibility. In this work, laser surface modification was employed throughout this thesis as a fast, robust and scalable approach to combatting these issues.
Microbiological studies illustrated laser surface treated titanium alloys possess both bactericidal and anti-adherent properties. Laser surface treatment of titanium alloys was found to not compromise cell viability and in some cases, significantly increase cell viability upon surfaces that were laser treated, relative to untreated titanium. Throughout the lifecycle of an orthopaedic implant, the repeated articulation gives rise to ‘wear particles’ as a result of the friction generated between the implant and the surrounding tissue.
Read the rest (3 more)
Wear particles were generated using pin-on-disc tribometry to determine whether there is a difference between the wear debris generated from untreated and laser-treated samples. The wear debris generated from laser-treated samples were found to possess antibacterial properties against both Staphylococcus aureus and Escherichia coli. Further research focused upon investigating laser ablation in liquid, in which a novel method of nanoparticle synthesis was performed that can be harnessed to synthesise nanoparticles with unique physicochemical properties for biomedical applications.
Silicone polymers have a wide range of biomedical applications yet are still prone to infection. A range of novel silicone nanocomposites were synthesised containing broad spectrum antimicrobial nanoparticles (Cu, Zn, Ti, TiO2) in an effort to mitigate infection. Silicone nanocomposites were assessed for their antimicrobial properties and cytocompatibility to determine whether they have any promise as medical devices.
Several candidates, particularly Cu-containing silicone nanocomposites, retained biocompatibility whilst boasting antimicrobial properties, offering a new avenue for addressing medical device-associated infections.<br><br><i>Thesis is embargoed until 31 July 2027.<br><br><br></i>
Links
Where it is published
- DOI doi.org/10.17034/32634951.v1 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
Provenance · 3 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/32634951 | 9 d ago | JSON v1 |
| Deakin Research Online | oai:figshare.com:article/32634951 | 9 d ago | JSON v1 |
| DMU Figshare | oai:figshare.com:article/32634951 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| description | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/description |
| license_text | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| publication_date | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |