报告内容摘要：

Emerging biomedical applications present unprecedented challenges to ultrasound transducer technology. In this talk, recent study on ultrasound transducer materials, structures and devices enabled by micro/nanotechnology is presented. In specific, we investigated micromachined piezoelectric composite transducers for high frequency intravascular ultrasound (IVUS) imaging, and dual frequency transducers for contrast enhanced IVUS imaging. In ultrasonic therapy study, we recently demonstrated ultrasound-induced site-specific cell membrane permeabilization (sonoporation) at the cellular level. We also demonstrated multi-frequency ultrasound induced efficient tissue ablation. These new findings suggest that  multi-frequency or broadband ultrasound transducers are increasingly important in advancing medicine and biology in many aspects.

报告人简介：

Dr. Xiaoning Jiang is a Professor of Mechanical and Aerospace Engineering and an Adjunct Professor of Biomedical Engineering at North Carolina State University. Dr. Jiang received his Ph.D. degree from Tsinghua University (1997) and his Postdoctoral training from the Pennsylvania State University (1997-2001). He was the Chief Scientist and Vice President for TRS Technologies, Inc. prior to joining NC State in 2009 as an Associate Professor. Dr. Jiang is the author and co-author of three book chapters, one book, 9 issued US Patents, and over 59 peer reviewed journal papers. His current research interests include smart materials and structures, micro/nanotechnology enabled ultrasound transducers and sensors, and smart M/NEMS.

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联系人：门丽霞  62755723