Artificial Skin Evaluation by Laser-Ultrasonics
Laser generated ultrasound is a powerful technique for inspecting and characterizing material properties such as elastic modulus, stiffness and thickness. The basic laser ultrasonic technique employs lasers both to generate and to detect ultrasonic signals at the surface of solid materials in a non-contacting manner. Our current research attacks the limitation of using of laser ultrasonics in medical environment, it generally involves the study of laser interactions with materials and examines ultrasonic wave generation and propagation in multi-layered bio-material models. Limiting thermal effects during measurement is critical to the safety; therefore, ultrasonic-induced temperature rise in the skin is analysed to ensure the laser source non-damaging to the material.
Numerical studies have demonstrated the flexibility and promise of laser ultrasonics and have pointed to its potential limitations. This knowledge would lead to a development of sensor devices suitable for human skin testing, in order to aid in the diagnosis and evaluation of long-term clinical treatment.
Papers
- FE simulation of laser generated surface acoustic wave propagation in skin, Ultrasonics, Vol. 44, 1243-1247, 2006 .
- FE Simulation of Laser Ultrasonic Surface Waves in a Biomaterial Model, Applied Mechanics and Materials, Vol 3-4 (2005) 85-90, 2005.
- Simulation of Laser Ultrasonic Surface Wave Dispersion In a Multilayered Skin Model, 5072-5075, Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE, August 2006.
Contact
- Dr Zhihong Huang (z.y.huang@dundee.ac.uk)
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