| 43170 |
Creator |
c3baa1aae2495d9fcf383c433b46bfe0 |
| 43170 |
Creator |
ext-73d047355768e4fd82940102aef58e6c |
| 43170 |
Creator |
ext-c1ca0178f4b5f4390e0af7b2fabea7d6 |
| 43170 |
Creator |
ext-e5f0d227a42c04cd89513c060b197295 |
| 43170 |
Creator |
ext-e8aaf142582645781ea828fca55ceb67 |
| 43170 |
Date |
2013-01 |
| 43170 |
Is Part Of |
repository |
| 43170 |
Is Part Of |
p18784291 |
| 43170 |
abstract |
Articular cartilage is the bearing surface of synovial joints and plays a crucial
role in the tribology to enable low friction joint movement. A detailed understanding
of the surface roughness of articular cartilage is important to understand how natural
joints behave and the parameters required for future joint replacement materials.
Bovine articular cartilage on bone samples was prepared and the surface roughness
was measured using scanning electron microscopy stereoscopic imaging at magnifications
in the range 500× to 2000×. The surface roughness (two-dimensional, <i>R</i><sub>a</sub>,
and three-dimensional, <i>S</i><sub>a</sub>) of each sample was then measured using
atomic force microscopy (AFM). For stereoscopic imaging the surface roughness was
found to linearly increase with increasing magnification. At a magnification of 500×
the mean surface roughness, <i>R</i><sub>a</sub>, was in the range 165.4±5.2nm to
174±39.3 nm; total surface roughness <i>S</i><sub>a</sub> was in the range 183–261
nm. The surface roughness measurements made using AFM showed <i>R</i><sub>a</sub>
in the range 82.6±4.6nm to 114.4±44.9nm and <i>S</i><sub>a</sub> in the range 86–136
nm. Values obtained using SEM stereo imaging were always larger than those obtained
using AFM. Stereoscopic imaging can be used to investigate the surface roughness of
articular cartilage. The variations seen between measurement techniques show that
when making comparisons between the surface roughness of articular cartilage it is
important that the same technique is used. |
| 43170 |
authorList |
authors |
| 43170 |
status |
peerReviewed |
| 43170 |
volume |
44 |
| 43170 |
type |
AcademicArticle |
| 43170 |
type |
Article |
| 43170 |
label |
Ghosh, Siddharth; Bowen, James ; Jiang, Kyle; Espino, Daniel M. and Shepherd, Duncan
E. T. (2013). Investigation of techniques for the measurement of articular cartilage
surface roughness. Micron, 44 pp. 179–184. |
| 43170 |
label |
Ghosh, Siddharth; Bowen, James ; Jiang, Kyle; Espino, Daniel M. and Shepherd, Duncan
E. T. (2013). Investigation of techniques for the measurement of articular cartilage
surface roughness. Micron, 44 pp. 179–184. |
| 43170 |
Title |
Investigation of techniques for the measurement of articular cartilage surface roughness |
| 43170 |
in dataset |
oro |