Protein viscoelastic dynamics: a model system.
Phys Rev E Stat Nonlin Soft Matter Phys
; 92(3): 032719, 2015 Sep.
Article
em En
| MEDLINE
| ID: mdl-26465510
ABSTRACT
A model system inspired by recent experiments on the dynamics of a folded protein under the influence of a sinusoidal force is investigated and found to replicate many of the response characteristics of such a system. The essence of the model is a strongly overdamped oscillator described by a harmonic restoring force for small displacements that reversibly yields to stress under sufficiently large displacement. This simple dynamical system also reveals unexpectedly rich behavior-exhibiting a series of dynamical transitions and analogies with equilibrium thermodynamic phase transitions. The effects of noise and of inertia are briefly considered and described.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Viscosidade
/
Elasticidade
/
Modelos Teóricos
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article