North Carolina A&T State University
NSF Engineering Research Center + Bioengineering Joint Seminar Series
Special Seminar by ERC Visitor – MONDAY, April 14th 11 AM, Fort IRC Room 410
Current and Future Directions in Biodegradable Metals Research
Peking University, Beijing, China
11 AM – 11:50 AM – Monday, April 14, 2014
Room 410, Fort Interdisciplinary Research Center
In this talk, the definition and category of biodegradable metals (BMs) will be presented at first, based on our recent publication (Materials Science & Engineering R: Reports, 77 (2014) 1-34), then the current research status on three BM alloy systems will be reported including (1) Mg-based BMs; the majority in the past 10 plus years. (2) Fe based BMs; the minority in the past 10 plus years; (3) Zn based BMs; the new direction appeared in the past 2 years, with emphases on their microstructures, mechanical properties and degradation behaviors, in vitro and in vivo performances, pre-clinical and clinical trials. Moreover, current approaches to control their biodegradation rates to match the healing rates of the host tissues with various surface modification techniques and novel structural designs will be summarized. Finally, the directions of future development and the challenges of transitioning BMs from raw materials to semi-products to final medical devices will be discussed. We believe that BM belongs to “bioactive” biomaterials and its future research and development direction should lean towards “third-generation biomedical materials” with “multifunctional capabilities” in a controllable manner to benefit the local tissue reconstruction.
About the Speaker:
Dr. Yufeng Zheng, received his Ph.D in materials science from Harbin Institute of Technology, China in 1998. From 1998 to 2004 he was Assistant Professor (1998-2000), Associate Professor (2000-2003), Full Professor (2003-2004) at Harbin Institute of Technology, China and since 2004 he has been a Full Professor at the Peking University in Beijing, China. Dr. Zheng has authored or co-authored over 270 scientific peer-reviewed articles, with the citation of over 4100 times, and a H-index of 30. He served as the Member of the editorial board of the Journal of Biomedical Materials Research-Part B: Applied Biomaterials (Wiley), “Journal of Biomaterials and Tissue Engineering” (American Scientific Publishers), “Materials Letters” (Elsevier), “Intermetallics” (Elsevier), “Journal of Materials Science & Technology” (Elsevier), “Acta Metallurgica Sinica (English Letters)” (Springer) and Journal of Orthopaedic Translation (Elsevier). His areas of special interest include the development of various new biomedical metallic materials (beta-Ti alloys with low elastic modulus, biodegradable Mg alloys and Fe alloys, bulk metallic glass, bulk nanocrystalline materials, etc). Dr. Zheng has received several awards including New Century Excellent Talents in University awarded by MOE of China (2007) and Distinguished Young Scholars awarded by NSFC (2012).