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SUMMARY:MechE Colloquium: Ultrasonic Microrobotics in Liquids
DTSTART:20220412T120000
DTEND:20220412T130000
DTSTAMP:20260406T102325Z
UID:89f36424ae201e442cb4a6fd597f7d239ecc92ba545b619cc2f6ad44
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Jürg Dual\, Department of Mechanical and Process Engine
 ering\, Institute for Mechanical Systems\, ETHZ\nFace masks are recommende
 d for in-person attendance in MED 0 1418.\n\nAbstract: Microscale acoustof
 luidics\, which deals with the manipulation of small particles (e.g. funct
 ionalized beads\, cells\, small organisms\, etc.) in a microchip\, has rec
 ently seen much attention in view of its rich effects involving fluid and 
 solid mechanics\, the resulting fluid structure interaction and a multitud
 e of possible applications from biomedical engineering to food science. Wh
 en an acoustic cavity is excited harmonically at large amplitudes\, non ze
 ro time averaged effects result from the nonlinearity of the Navier Stokes
  equations\, which include acoustic streaming (AS) and acoustic radiation 
 forces (ARF) acting on the particles. For very simple cases\, analytical s
 olutions for the ARF like the Gorkov potential exist. Both theory and appl
 ications are expanding rapidly towards more general situations and new app
 lication directions like cell secretome separation\, advanced manufacturin
 g and manipulation of living organisms.\n\nBiography:\nJürg Dual has been
  Full Professor of Mechanics and Experimental Dynamics in the Center of Me
 chanics of the Institute of Mechanical Systems at the ETH in Zurich since 
 October 1\, 1998. He was President of the Planning Commission (2000-​200
 4) and of the University Assembly (2008-​2012) of ETH Zurich. Jürg Dual
  was born on May 14\, 1957 and studied mechanical engineering at the ETH Z
 urich. He then spent two years on a Fulbright grant at the University of C
 alifornia in Berkeley\, where he graduated with a M.S. and a M. Eng. degre
 e in mechanical engineering. He then received his Dr. sc. techn. degree at
  the ETH Zurich under the guidance of Prof. Dr. M. Sayir at the Institute 
 of Mechanics. For his dissertation he was awarded the Latsis Prize of the 
 ETH Zurich in 1989. After one year as visiting assistant professor at Corn
 ell University\, Ithaca\, NY\, he returned to the ETH Zurich as assistant 
 professor. He is a Fellow of the ASME\, member of the SATW (Swiss Academy 
 of Technical Sciences) and Honorary Member of the German Association for M
 aterials Research and Testing. His research focuses on wave propagation an
 d vibrations in solids\, micro-​ and nanosystem technology as well as gr
 avitation. In particular he is interested in both basic research and appli
 cations in the area of sensors (viscometry)\, ultrasonic manipulation of c
 ells and particles and gravitational interaction of resonating systems. In
  his research\, experimentation is central\, but must always be embedded i
 n corresponding analytical and numerical modeling. As mechanics is a very 
 basic science\, it is particularly attractive for him to interact with nei
 ghbouring disciplines like bioengineering\, materials science or micro-​
  and nanosystem technology.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418 https://epf
 l.zoom.us/j/67275071152
STATUS:CONFIRMED
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