| Title |
Improving tribological and anti-bacterial properties of titanium external fixation pins through surface ceramic conversion
|
|---|---|
| Published in |
Journal of Materials Science: Materials in Medicine, November 2016
|
| DOI | 10.1007/s10856-016-5816-0 |
| Pubmed ID | |
| Authors |
Huan Dong, Tatiana Mukinay, Maojun Li, Richard Hood, Sein Leung Soo, Simon Cockshott, Rachel Sammons, Xiaoying Li |
| Abstract |
In this study, an advanced ceramic conversion surface engineering technology has been applied for the first time to self-drilling Ti6Al4V external fixation pins to improve their performance in terms of biomechanical, bio-tribological and antibacterial properties. Systematic characterisation of the ceramic conversion treated Ti pins was carried out using Scanning electron microscope, X-ray diffraction, Glow-discharge optical emission spectroscopy, nano- and micro-indentation and scratching; the biomechanical and bio-tribological properties of the surface engineered Ti pins were evaluated by insertion into high density bone simulation material; and the antibacterial behaviour was assessed with Staphylococcus aureus NCTC 6571. The experimental results have demonstrated that the surfaces of Ti6Al4V external fixation pins were successfully converted into a TiO2 rutile layer (~2 μm in thickness) supported by an oxygen hardened case (~15 μm in thickness) with very good bonding due to the in-situ conversion nature. The maximum insertion force and temperature were reduced from 192N and 31.2 °C when using the untreated pins to 182N and 26.1 °C when the ceramic conversion treated pins were tested. This is mainly due to the significantly increased hardness (more than three times) and the effectively enhanced wear resistance of the cutting edge of the self-drilling Ti pins following the ceramic conversion treatment. The antibacterial tests also revealed that there was a significantly reduced number of bacteria isolated from the ceramic conversion treated pins compared to the untreated pins of around 50 % after 20 h incubation, P < 0.01 (0.0024). The results reported are encouraging and could pave the way towards high-performance anti-bacterial titanium external fixation pins with reduced pin-track infection and pin loosing. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 2 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 2% |
| Unknown | 45 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 9 | 20% |
| Student > Master | 5 | 11% |
| Student > Bachelor | 5 | 11% |
| Researcher | 4 | 9% |
| Student > Doctoral Student | 2 | 4% |
| Other | 9 | 20% |
| Unknown | 12 | 26% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 10 | 22% |
| Materials Science | 7 | 15% |
| Engineering | 5 | 11% |
| Agricultural and Biological Sciences | 2 | 4% |
| Biochemistry, Genetics and Molecular Biology | 2 | 4% |
| Other | 6 | 13% |
| Unknown | 14 | 30% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 January 2017.
All research outputs
#15,423,393
of 22,931,367 outputs
Outputs from Journal of Materials Science: Materials in Medicine
#1,045
of 1,404 outputs
Outputs of similar age
#250,023
of 415,362 outputs
Outputs of similar age from Journal of Materials Science: Materials in Medicine
#6
of 8 outputs
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So far Altmetric has tracked 1,404 research outputs from this source. They receive a mean Attention Score of 3.4. This one is in the 16th percentile – i.e., 16% of its peers scored the same or lower than it.
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