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Phys Rev Lett. 2009 Apr 10;102(14):148301. Epub 2009 Apr 7.

Amplification of tension in branched macromolecules.

Author information

1
P. N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow 117924, Russia.

Abstract

We propose a method for the design of branched macromolecules that are capable of building up high tension ( approximately nN) in their covalent bonds without applying an external force. The tension is self-generated due to repulsion between branches and depends on the molecular architecture leading to amplification and focusing of tension in specific bonds. The simplest architecture is a pom-pom composed of a linear spacer and two z-arm stars at its ends resulting in z-fold tension amplification. Adsorption of those macromolecules on a substrate results in further increase in tension as compared to molecules in solution.

PMID:
19392489
PMCID:
PMC4823814
DOI:
10.1103/PhysRevLett.102.148301
[Indexed for MEDLINE]
Free PMC Article

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