报告题目：Laser Textured Bio-Ceramic Coatings for Hard Tissue Implants
报告人：Narendra B. Dahotre，Department of Materials Science & Engineering，University of North Texas
报告内容简介：The interaction at the surfaces of load bearing implant biomaterials with tissues and physiological fluids is an area of crucial importance to all kinds of medical technologies. To achieve the best clinical outcome and restore the function of the diseased tissue, several surface engineering strategies have been discussed by scientific community throughout the world. The current work focuses on one such technique based on laser surface engineering to achieve the appropriate surface morphology and surface chemistry. By using pulsed and continuous wave laser direct melting techniques three dimensional textured surfaces with calcium phosphate (Ca-P) based chemistry on Ti-6Al-4V were synthesized. The influence of each processing type on the micro texture, phase evolution and associated effects on wettability, in vitro bioactivity, and in vitro biocompatibility were evaluated. The in vitro bioactivity and in vitro biocompatibility of the coatings were proved by the precipitation of an apatite like phase following immersion in simulated body fluid (SBF), and increased proliferation and spreading of the MC3T3-E1 like cells. The results and understanding gained in the current research provides the platform for further exploration of additional precursor compositions and laser process parameters for synthesizing improved biocompatible coatings.
Narendra Dahotre个人简介： Professor and Chairman, Department of Materials Science and Engineering, has been recognized for the pioneering contributions to fundamental understanding and engineering of laser-materials interactions along with implementation of high power lasers in materials processing and surface engineering. He is internationally known for his work on fundamentals and applications of laser surface engineering of metals, ceramics, polymers and composites. His work over 25 years on laser materials-interactions has been compiled in four books, 15 U.S. Patents, 12 proceedings and over 220 papers. He has been elected to 2010 Class of SME Fellows, 2009 Class of AAAS Fellows, 2008 Class of ASME Fellows, 2008 Class of IIM Fellows and 2004 Class of ASM Follows. He has received 2006 R&D 100 Award, 2006 University of Tennessee Chancellor’s Research and Creativity Achievement Award, 2006 University of Tennessee College of Engineering Research Fellow Award. He has completed B.S. from the University of Poona, India and M.S. and Ph.D. from Michigan State University, USA.