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Power-law creep behavior of a semiflexible chain Arnab Majumdar,1,2
 

Summary: Power-law creep behavior of a semiflexible chain
Arnab Majumdar,1,2
Béla Suki,1
Noah Rosenblatt,3
Adriano M. Alencar,4
and Dimitrije Stamenovi1,*
1
Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, USA
2
Department of Physics, Boston University, Boston, Massachusetts 02215, USA
3
Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois 60612, USA
4
Department of Pathology, LIM 05, Medical School, University of São Paulo, São Paulo, São Paulo, Brazil
Received 1 August 2008; revised manuscript received 29 September 2008; published 29 October 2008
Rheological properties of adherent cells are essential for their physiological functions, and microrheological
measurements on living cells have shown that their viscoelastic responses follow a weak power law over a
wide range of time scales. This power law is also influenced by mechanical prestress borne by the cytoskeleton,
suggesting that cytoskeletal prestress determines the cell's viscoelasticity, but the biophysical origins of this
behavior are largely unknown. We have recently developed a stochastic two-dimensional model of an elasti-

  

Source: Alencar, Adriano Mesquita - Departamento de Física Geral, Universidade de São Paulo

 

Collections: Physics