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May 20-21, 2019 | Vienna, Austria
Biomaterials and Nanomaterials &
Materials Physics and Materials Science
2nd International Conference on
Page 44
Journal of Materials Science and Nanotechnology | Volume 3
Yuncang Li
RMIT University, Australia
Biocompatible magnesium alloys for biodegradable implant materials
Magnesium (Mg) based alloys have been extensively
considered for their use as biodegradable implant
materials. However, controlling their corrosion rate in
the physiological environment of the human body is still a
significant challenge. One of the most effective approaches
to address this challenge is to strategically design new Mg
alloys with enhanced corrosion resistance, biocompatibility,
and mechanical properties. Our research has developed new
series of Mg-zirconium (Zr)-strontium (Sr)-rare earth element
(REE) alloys for biodegradable implant applications. Research
results indicate that Sr and Zr additions can refine the grain
size and enhance the corrosion and biological behaviors of
the Mg alloys. Furthermore, the addition of holmium (Ho)
and dysprosium (Dy) to Mg-Zr-Sr alloys resulted in enhanced
mechanical strength and decreased degradation rate. In
addition, less than 5 wt.% Ho and Dy additions to Mg-Zr-Sr
alloys led to enhancement of cell adhesion and proliferation
of osteoblast cells on the Mg-Zr-Sr-Ho/Dy alloys.
Speaker Biography
Yuncang Li obtained his PhD in materials science engineering fromDeakin
University in 2004 and then took up a research position in biomaterials
engineering at Deakin University until the end of 2014. He joined RMIT
University in 2015. He was awarded an Australian Research Council (ARC)
Future Fellowship and won several national competitive grants including
ARC and Australian National Health and Medical Research Council
projects. His research focuses on developing metallic biomaterials for
medical applications. He has expertise in microstructure-mechanical
property relationships, corrosion, and biocompatibility, surface
modification, nanostructured metals and alloys, and metal foams. His
research has led to 184 peer-reviewed original publications, with an H
index of 31 and over 3180 citations (Google Scholar).
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