Micro & Nano Devices 3
Tuesday, April 10, 4:00-5:30, Ballroom B, University Hotel Minneapolis
Organizer: Tianhong Cui, PhD, Professor, Mechanical Engineering, University of Minnesota
"Micromachined Piezoelectrics for Medical Sensors and Transducers"
Xiaoning Jiang, PhD, Department of Mechanical and Aerospace Engineering,
Department of Biomedical Engineering, North Carolina State University
"Applications of Bioencapsulation"
Alptekin Aksan, PhD, Biostabilization Laboratory, Mechanical Engineering Department BioTechnology Institute, University of Minnesota
"MEMS-Based Polymer Hot Embossing for Medical Devices"
Tianhong Cui, PhD, Professor, Mechanical Engineering, University of Minnesota
Session Abstract:
There are three talks in this session covering piezoelectric micro devices, polymer micro devices, and applications of bioencapsulation. From devices to applications, this session will cover the hot topics in MEMS/NEMS area.
Session Organizer Bio:
Tianhong Cui, PhD, Professor, Mechanical Engineering, University of Minnesota
Dr. Tianhong Cui is a professor of Mechanical Engineering at the University of Minnesota. From 1999 to 2003, he was an assistant professor of electrical engineering at Louisiana Technical University. His current research interests include MEMS/NEMS, nanotechnology, and polymer electronics.
Speaker Bios:
Xiaoning Jiang, PhD, Department of Mechanical and Aerospace Engineering,
Department of Biomedical Engineering, North Carolina State University
Xiaoning Jiang is an Associate Professor of Mechanical and Aerospace Engineering and an Adjunct Professor of Biomedical Engineering at North Carolina State University. Before Dr. Jiang joined NCSU, he was the Chief
Scientist and Vice President of TRS Technologies, Inc (2001-2009). Dr. Jiang
received his degrees in Mechanical Engineering from Shanghai Jiaotong
University (BS, 1990), Tianjin University (MS, 1992) and Tsinghua
University (PhD, 1997). Upon completion of his PhD degree, Dr. Jiang
received Postdoctoral research training from Nanyang Technological
University (1997) and the Pennsylvania State University (1997-2001). Dr.
Jiang's current research interests include piezoelectric composite
micromachined ultrasound transducers (PC-MUT), M/NEMS, ultrasound for
medical imaging and ultrasound NDE, ultrasound sensors and micro-actuators.
Dr. Jiang is the author and co-author of two book chapters, one book, 4
awarded US Patents, more than 10 US patent applications and over 50
technical papers on smart materials and structures, actuators, transducers,
MEMS devices and microfabrications.
Alptekin Aksan, PhD, Biostabilization Laboratory, Mechanical Engineering Department BioTechnology Institute, University of Minnesota
Professor Aksan received his BS and MS degrees in Mechanical Engineering from the Middle East Technical University in Ankara, Turkey. He completed his PhD studies on thermomechanics of collagenous tissues in Michigan State University, Mechanical Engineering Department. He worked for three years as a post-doctoral researcher in Center for Engineering in Medicine in Massachusetts General Hospital, Harvard Medical School before joining the faculty of Mechanical Engineering in University of Minnesota. His research interests are Bioencapsulation, Cellular Biophysics, Biothermodynamics, Biostabilization, and Bioheat/Mass Transfer.
Presentation Abstracts:
"Micromachined Piezoelectrics for Medical Sensors and Transducers"
Piezoelectrics has been broadly used in monitoring, diagnostic and therapeutic medical devices. In this talk, piezoelectric materials, structures and micro/nanofabrication processes are introduced first, followed by the design, fabrication and characterization of micromachined piezoelectric composite ultrasound transducers (PC-MUT). The unprecedented transduction sensitivity and bandwidth of 40 MHz and 60 MHz PC-MUT were successfully verified by IVUS imaging experiments using phantom and porcine models. Recent progress on piezoelectric transducers for cell characterization and tactile sensing is next presented exploring the potential of micromachined piezoelectric sensors and transducers. Finally, discussions are made on future piezoelectric micro/nano-device research for a broader range of medical applications.
"Applications of Bioencapsulation"
Encapsulation of macromolecules and micro-organisms in high porosity hybrid silica gels have a variety of applications ranging from bioremediation to medicine. In this presentation, we will examine the characteristics of the silica gel and the biointerface (the cell-gel interface) and describe two high profile applications of reactive silica gels developed for bioremediation of herbicide contaminated wastewater and for a solitary cancer cell dormancy model.
"MEMS-Based Polymer Hot Embossing for Medical Devices"
This talk will present the state-of-the-art MEMS-based hot embossing technique for bioanalytical devices. Hot embossing is basically for polymer micro- and nano-fabrication of polymer structures, especially towards microfluidics based devices for medical applications.
Realated Session:
Micro & Nano Devices 1
Micro & Nano Devices 2
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