The 7th PERC Symposium / 2nd Hybrid Polymers Symposium will be held on December 5-6 at the University of Auckland. For information about the Symposium please contact Jadranka Travas-Sejdic or Paul Kilmartin.
News | Bryon Wright | 
December 5, 2011 7:52 am | 
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1 June 2011
12 midday – 1pm – please note time change
Venue: 70 Symonds St, Level 2, Room 439-201
Host: Dr Richard Clarke
Contact email: rj.clarke@auckland.ac.nz
Speaker
Professor John Sader
Department of Mathematics and Statistics
University of Melbourne, Australia
Abstract
Nanomechanical sensors are often used to measure environmental changes with extreme sensitivity. Controlling the effects of surfaces and fluid dissipation presents significant challenges to achieving the ultimate sensitivity in these devices. Particularly, the fluid-structure interaction of resonating microcantilevers in fluid has been widely studied and is a cornerstone in nanomechanical sensor development. In this talk, I will give an overview of work being undertaken in our group dedicated to exploring the underlying physical processes in these systems. This will include exploration of recent developments that focus on cantilever sensors with embedded microfluidic fluid channels and examination of the effects of surface stress on the resonant properties of cantilever sensors.
[1] M. J. Lachut and J. E. Sader, “Effect of surface stress on the stiffness of cantilever plates”, Physical Review Letters, 99, 206102 (2007).
[2] M. J. Lachut and J. E. Sader, “Effect of surface stress on the stiffness of cantilever plates: Influence of cantilever geometry”, Applied Physics Letters, 95, 193505 (2009).
[3] T. P. Burg, J. E. Sader and S. R. Manalis, “Nonmonotonic energy dissipation in microfluidic resonators”, Physical Review Letters, 102, 228103 (2009).
[4] J. E. Sader, T. P. Burg and S. R. Manalis, “Energy dissipation in microfluidic beam resonators”, Journal of Fluid Mechanics, 650, 215-250 (2010).
Biog raphy
John E Sader is Professor in the Department of Mathematics and Statistics, University of Melbourne, Australia. He leads an interdisciplinary theoretical group studying a range of topics including the dynamic response of nanoparticles under femtosecond laser excitation, mechanics of nanoelectromechanical devices, high Reynolds number flow of thin films and rarefied gas dynamics in nanoscale systems. http://www.ampc.ms.unimelb.edu.au/srg
Talk | Bryon Wright | May 30, 2011 2:25 pm | Comments Off
Professor Lloyd M. Davis from the Center for Laser Applications, University of Tennessee Space Institute, is presenting a School Seminar on Thursday 5 May. His talk is called “Femtosecond laser fabrication of devices for single-molecule spectroscopy and applications in biotechnology”. This will be held in Room 301-242 at 4 pm, followed by a sherry hour in the 5th floor tea room.
(from photonfactory.auckland.ac.nz)
Talk | Bryon Wright | May 5, 2011 1:55 pm | Comments Off
Tune into Radio NZ’s program on science, environment and health, “Our Changing World” to hear about work being done at the Auckland Microfab. Search for “Lab-on-a-chip Devices” which originally aired on Thursday, 14th April, 2011.
News | Bryon Wright | April 16, 2011 8:27 am | Comments Off
The BioMEMS Research Group’s web page has been launched online at http://biomems.auckland.ac.nz
