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Slow Synchronization Keeps Heart Cells Beating in Time

For a beating heart cell, noise is a problem. Researchers showed that single cells can regulate their inner noise


Not all pincers are created the same. New research explains the difference in scorpion pincers

stretched blood vessels

Scientists from the Technion - Israel Institute of Technology and the Weizmann Institute of Science reveal the mechanical forces that influence...

cyanobacteria reveal developmental pattern

Physicists and biologists team up to show that even the simplest biological developmental patterns may require some noise to be formed

A melanoma cancer cell is labeled with invadopodia markers in fluorescence microscopy

How does a cancer cell push its way out of the surrounding tissue?

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
A new model shows that the filaments in heart muscle cells don't automatically keep the beat
Katzir in his lab, 1972

Prof. Aharon Katzir’s message is still relevant 40 years after his death in a terrorist attack

Prof. Ephrain Katzir, 1916-2009
Professor Ephraim Katzir passed away on Saturday, May 30, 2009
Dr. Nir Gov. The physics of fingers, hair and spines
Physics helps explain the formation of spines and bumps on specialized cells 
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
Cells in biomaterials respond to the speed with which the material is stretched