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Samuel Safran

cardiomyocyte
09.07.2019

Applying physics to studying heart cells reveals a spring-and-treadmill-like mechanism that keeps them beating

nanopores
25.02.2019

Nanoscale “slit” experiments may point to better porous materials for electricity storage

Prof. Samuel Safran
20.01.2019

Prof. Samuel Safran has been selected to serve as the first editor-in-chief of The Biophysicist, a new journal of the Biophysical Society

A chicken heart muscle cell under a fluorescent microscope; the filaments consist of repeated subunits (bright dotted lines). The schematic representation shows three neighboring filaments; the black lines are the boundaries of their subunits, such that the lower filament is aligned with the middle one, while the upper one is not
26.02.2015
A new model shows that the filaments in heart muscle cells don't automatically keep the beat
 
(l-r) Dr. Benjamin Friedrich, Prof. Samuel Safran, Dr. Yair Shokef  and Elon Langbeheim. Looking underneath
26.04.2011

Developing cells “feel” what is underneath and take shape accordingly

Prof. Samuel Safran
01.09.2010
 

 

Top: The cell pulls to maintain a fixed stretch in the gel. Middle:  If the gel is externally stretched, the cell can reduce the force it exerts.  Bottom: If the gel is alternately stretched and relaxed, the frustrated cell  cannot "decide" how much force to exert. This results in the cell orienting  perpendicular to the stretch direction
01.10.2007
Cells in biomaterials respond to the speed with which the material is stretched
...
Dr. Nir Gov. Moving models
01.05.2005

Red blood cells must be flexible yet tough. A physics-based model shows how.

illustration:"Buckyball" discovery
01.03.2004
They sound like characters in a miniature fantasyland: fullerene, nanotube and quantum dot. But these and other nanosized...
Illustration: Biologists and miniaturized humans
01.03.2004

Having devised nanomachines capable of manipulating single atoms and molecules and begun to apply these technofeats to modify...

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