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BEGIN:VEVENT
DTSTAMP:20260816T055914Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20061012T160000Z
DTEND:20061012T190000Z
UID:event37@bu.edu
URL:http://physics.bu.edu/internal/events/show/37
SUMMARY:Dynamics of Detachment of Real and Artificial Cells
DESCRIPTION:Featuring Professor Francoise BROCHARD\, Institute Curie\, Pari
	s\nHosted by: H. Eugene Stanley\n\nPart of the Biophysics/Condensed Matter 
	Seminar Series.\n\nPizza Lunch Discussion 12-1\n\n ABSTRACT: We study the f
	orce to detach cells and the dynamics of detachment on real cells\, and art
	ificial cells: liquid vesicles (or red blood cells) and elastic rubber bead
	s decorated with specific proteins. We find that for both liquid and elasti
	c beads\, the force of detachment is proportional to the adhesion energy an
	d the radius of the bead\, with a different numerical factor. We follow the
	 dynamics of detachment by imaging the contact by optical interferometry us
	ing millimetric rubber beads. We find three steps (I decompression\, II adh
	esive unbinding and III catastrophic rupture) interpreted by a transfer of 
	mechanical energy into viscous loss to break the binding proteins.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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