Determination of diffusion coefficients in bovine bone by means of conductivity measurement
Author
Summary, in English
Measuring the diffusivity of various substances in cortical bone is in
general difficult. For instance, making use of micro computed tomography requires agents that can be separated from bone, blood and other substances that exist in cortical bone. Here a more easily accessible method is presented. A series of cortical bovine bone samples were put in a saturated solution of potassium chloride for a time period that was long enough for the samples to be regarded as saturated. The samples were removed from the solution and moulded in polyester leaving only the radial directions open. In the next step,
the bone samples were put in distilled water and the conductivity of the water was registered over time. An analytical model fulfilling Ficks law was introduced and by means of Kalman filtering an estimation for the diffusion coefficient of potassium chloride in bovine bone is presented.
general difficult. For instance, making use of micro computed tomography requires agents that can be separated from bone, blood and other substances that exist in cortical bone. Here a more easily accessible method is presented. A series of cortical bovine bone samples were put in a saturated solution of potassium chloride for a time period that was long enough for the samples to be regarded as saturated. The samples were removed from the solution and moulded in polyester leaving only the radial directions open. In the next step,
the bone samples were put in distilled water and the conductivity of the water was registered over time. An analytical model fulfilling Ficks law was introduced and by means of Kalman filtering an estimation for the diffusion coefficient of potassium chloride in bovine bone is presented.
Department/s
Publishing year
2014-12
Language
English
Pages
324-342
Publication/Series
International Journal of Experimental and Computational Biomechanics
Volume
2
Issue
4
Document type
Journal article
Publisher
Inderscience Publishers
Topic
- Mechanical Engineering
Keywords
- experimental biomechanics
- transient solution
- Kalman filter
- Fourier series
- Fick’s law
- conductivity measurement
- diffusion experiment
- diffusion in bovine bone
- bone material constants
Status
Published
ISBN/ISSN/Other
- ISSN: 1755-8735