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The University of South Carolina Department of Electrical Engineering Presents Understanding The Interaction Of Light On Carbon Nanotubes: From Micro-Opto-Mechanical Systems To Cancer Nanotechnology Balaji Panchapakesan Assistant Professor Department of Electrical and Computer Engineering Delaware MEMS and Nanotechnology Laboratory University of Delaware, Newark, DE 19716 When: 11:00AM on Monday, December 03, 2007 Where: 3D05 in Swearingen Center For some systems, energy from an external source can trigger changes in the internal state of the structure, leading to a mechanical response much larger than the initial input. The ability to unlock this internal work in solid state materials is of key importance for many potential applications. Carbon nanotubes have been known to show highly interesting properties such as high mechanical strength, thermal conductivity, high optical absorbance, photoconductivity, and light emission. While there have been tremendous advances in many of these areas, the ability of nanotubes to absorb light and convert into mechanical, thermal, electrostatic and optical energy is still a poorly understood problem and could potentially open up many new applications from micro-robotics to cancer nanotechnology. This talk will present some recent developments in understanding the science of photo-mechanical actuation of carbon nanotubes. From simple irregular photon induced mechanical motion in nanotubes to construction of nanotube based micro-opto-mechanical systems will be presented. A new MEMS/CMOS compatible patterning process of nanotube thin films that enables the fabrication of variety of micro-opto-mechanical systems will be discussed. The applications of interaction of light with carbon nanotubes for cancer nanotechnology that enables integrated molecular targeting, imaging and cell killing of breast cancer cells in one step will be presented. Short Biography: Balaji Panchapakesan received his PhD in Mechanical Engineering from the University of Maryland at College Park in 2001. He is currently an Assistant Professor in the Electrical Engineering Department at the University of Delaware. His research focuses on understanding how light interacts with carbon nanotubes and creating applications as diverse as micro-opto-mechanical systems to cancer nanotechnology that utilize this phenomenon. He is the recipient of NSF CAREER award in 2005 and Francis Alison Young Scholar Award at the University of Delaware in 2006.
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