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VERSION:2.0
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METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260905T204043Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20081120T200000Z
DTEND:20081120T210000Z
UID:event338@bu.edu
URL:http://physics.bu.edu/internal/events/show/338
SUMMARY:Wrinkling\, Crumpling\, and Snapping Polymer Surfaces
DESCRIPTION:Featuring Al Crosby\, UMASS Amherst\nHosted by: Ophelia Tsui\n\
	nPart of the Biophysics/Condensed Matter Seminar Series.\n\nAbstract:\nUpon
	 the development of a critical stress\, many materials and geometries exper
	ience a mechanical instability\, which produces significant changes in geom
	etry with small changes in stress.  In nature\, mechanical instabilities ar
	e ubiquitous with the definition of shape\, morphology\, and function.  Exa
	mples range from fingerprints to the snapping of Venus Flytrap.  Inspired b
	y these examples\, we use elastic instabilities to control the morphology a
	nd function of soft polymer surfaces. We present our control of kinetically
	-trapped and equilibrium wrinkle and crumple morphologies and our success i
	n using these structures to biomimetically control properties ranging from 
	adhesion to optics.  Additionally\, new efforts to use these instabilities 
	in the characterization of early tissue formation will be presented.\n\nBIO
	GRAPHY: Al is an Associate Professor in the Polymer Science & Engineering D
	epartment at the University of Massachusetts Amherst\, which he joined in 2
	002.  He received his BS degree in Civil Engineering and Applied Mechanics 
	at the University of Virginia and his Ph.D. in Materials Science and Engine
	ering at Northwestern University.  He was awarded a National Research Counc
	il Research Fellowship for his postdoctoral research in the Polymers Divisi
	on at the National Institute of Standards and Technology.  At UMass\, he ha
	s received many awards including the 3M Non-tenured Faculty Award (2003)\, 
	the NSF CAREER Award (2004)\, the Army Research Office Young Investigator A
	ward (2005)\, the Adhesion Society’s Young Scientist Award (2008)\, and t
	he Rohm and Haas New Faculty Award (2008).  His research interests include 
	mechanics of hierarchical structures; polymer adhesion; biomimetic material
	s design; responsive surfaces and materials; elastic instabilities; deforma
	tion and fracture of thin films; polymer patterning; and nanocomposites.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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