English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Generation of mechanical force by grafted polyelectrolytes in an electric field

MPS-Authors
/persons/resource/persons121852

Seidel,  Christian
Christian Seidel, Theorie & Bio-Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Brilliantov, N. V., Budkov, Y. A., & Seidel, C. (2016). Generation of mechanical force by grafted polyelectrolytes in an electric field. Physical Review E, 93(3): 032505. doi:10.1103/PhysRevE.93.032505.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002A-22BC-9
Abstract
We study theoretically and by means of molecular dynamics (MD) simulations the generation of mechanical force by grafted polyelectrolytes in an external electric field, which favors its adsorption on the grafting plane. The force arises in deformable bodies linked to the free end of the chain. Varying the field, one controls the length of the nonadsorbed part of the chain and hence the deformation of the target body, i.e., the arising force too. We consider target bodies with a linear force-deformation relation and with a Hertzian one. While the first relation models a coiled Gaussian chain, the second one describes the force response of a squeezed colloidal particle. The theoretical dependences of generated force and compression of the target body on an applied field agree very well with the results of MD simulations. The analyzed phenomenon may play an important role in future nanomachinery, e.g., it may be used to design nanovices to fix nanosized objects.