News and events of Multidisciplinary nano and Microsystems (MnM) Lab

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IMG Seminar: Surface Micromachined Multilayer Composite right/left Handed Metamaterial for Highly Compact RF Circuits

Event date: 
Wed, 09/22/2010 - 8:30pm to 9:00pm

Please note that this week's seminar is from 4PM (not 3PM) due to speaker's conflict.

Snacks and drinks will be served

Speaker: David Senior

Abstract: Highly compact metamaterial devices are demonstrated by combining the composite right-left handed transmission line approach with a multilayer surface micromachined fabrication processusing SU8 as a dielectric layer. Multiband microwave metamaterial applications for ISM frequencies of 2.4GHz and 5.8GHz are implemented The use of microfabrication techniques eliminates the necessity of using surface mounting device (SMD) based lumped components and makes the CRLH structures compatible and integrable with CMOS/MEMS processes while allowing batch fabrication of multiple devices.

IMG Seminar: A High Gain Circular Polarization Antenna using Metamaterial Slabs

Event date: 
Wed, 09/22/2010 - 8:00pm to 8:30pm

Please note that this week's seminar is from 4PM (not 3PM) due to speaker's conflict.

Snacks and drinks will be served

Speaker: Cheolbok Kim

Abstract: Modern satellite communication systems often demand low-profile, wide bandwidth, high gain, and circular polarization antennas. For this applications, a high gain circular polarization antenna with metamaterial slabs has been proposed. Metamaterial slabs having periodic circular lattices have been used to focus beam while fan-shaped patches are added on the slabs to generate circular polarization. The proposed antenna has shown a good axial ratio at the resonant frequency band. It also has shown a simulated gain improvement and transmission gain improvement. In addition, the left/right handed polarization is simply controlled by turning over metamaterial slabs.

IMG Seminar: Spatially Controlled Electrospun Solid Gradient Aligned Nanofiber Tissue Scaffold for Guided Spiral Ganglion Neuron Culture

Event date: 
Wed, 09/15/2010 - 7:00pm to 7:30pm

Speaker: PitFee Jao

The direction of cell growth is associated with chemical, structural and/or mechanical properties of the substrate. Structurally, electrospun nanofibers provide a suitable environment for cell attachment and proliferation due to their similar physical dimension to that of the extracellular matrix. Furthermore, by modulating the topographical features of nanofibers, which include fiber diameter and orientation, cell growth and its related functions can be modified. Here, we demonstrate a solid gradient scaffold for directional growth of spiral ganglion neurons (SGNs).

IMG Welcomes New Faculty Member, YK Yoon

IMG welcomes Professor YK Yoon as new faculty in the Department of Electrical and Computer Engineering. Prof. Yoon joins IMG from the University of Buffalo, The State University of New York. He has achieved numerous awards for excellence including the NSF CAREER Award and the UB's Exceptional Scholar Young Investigator Award. His research interests include MEMS and nanotechnology, RF/Microwave, millimeter wave and terahertz system, Micro/nano-biomedical devices and bio molecule (drug/vaccine/gene) delivery, µ-TAS, lab-on-a-chip, wireless/wired sensors and actuators and Metamaterial and its RF application. Prof. Yoon is also the Director of the Multidisplinary Nano and Microsystems Laboratory at UF.