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SUMMARY:Soft\, Stretchable\, and Reconfigurable Materials for Electronics 
 and Actuators
DTSTART:20170704T110000
DTEND:20170704T120000
DTSTAMP:20260407T105553Z
UID:52ea7d16ad2da908ca88c9e0d90fcf60b2dfcec203300b0a05a23f59
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Michael Dickey \nIMT Distinguished Lecture\n\nAbstract: 
 This talk will describe efforts in our research group to control the shape
  and function of soft materials (liquid metals\, polymers and hydrogels) f
 or applications that include stretchable electronics\, soft robots\, and s
 elf-folding polymer sheets.  The research harnesses interfacial phenomena
 \, micro fabrication\, patterning\, and thin films.  The talk will discus
 s the underlying fundamental science motivating active areas of research i
 n our group\, which include:\n\n	Ultra-stretchable wires\, sensors\, anten
 nas\, and microelectrodes composed of liquid metal alloys based on gallium
 .The metal is a liquid at room-temperature with low-viscosity (water-like)
  and can be micromolded due to a thin\, oxide skin that forms rapidly on i
 ts surface.The metal can be patterned in a number of ways including inject
 ion into microchannels or by direct-write 3D printing.Recently\, we discov
 ered that the oxide may be the best surfactant ever reported and can be re
 moved or deposited using electrochemistry in electrolyte as a new method t
 o control the shape of the metal.\n	Self-folding polymers sheets that chan
 ge shape in response to light.These sheets are a form of shape memory poly
 mers that are compatible with 2D patterning techniques including lithograp
 hy\, inkjet printing\, and roll to roll processing.The appeal of this work
  is converting 2D patterns into 3D shapes (similar to origami) in a hands 
 free manner.\n	New methods for patterning ions in hydrogels.  This revers
 ible process can imprint topography in the hydrogel using modest voltages\
 , tune its local mechanical properties to create physically-reinforcing ex
 oskeletons\, and generate stresses sufficient to actuate or fold hydrogels
  over large distances within seconds\n\nBio: Michael Dickey received a BS 
 in Chemical Engineering from Georgia Institute of Technology (1999) and a 
 PhD in Chemical Engineering from the University of Texas at Austin (2006) 
 under the guidance of Professor Grant Willson. From 2006-2008 he was a pos
 t-doctoral fellow in the lab of Professor George Whitesides at Harvard Uni
 versity.  In August 2008\, he joined the Department of Chemical & Biomole
 cular Engineering at NC State University where he is currently an Alumni D
 istinguished Professor.  He completed a sabbatical at Microsoft in 2016.
   Michael’s research interests include patterning and actuating soft ma
 terials by studying and harnessing thin films\, interfaces\, and unconvent
 ional fabrication techniques.   \n 
LOCATION:SV 1717 https://plan.epfl.ch/?room==SV%201717
STATUS:CONFIRMED
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