Journal
PHYSICAL REVIEW E
Volume 83, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.83.061912
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Funding
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0000989]
- National Science Foundation [DMR-0805330]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0805330] Funding Source: National Science Foundation
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We analyze the conformations and mechanical properties of closed diblock fibers. In our model, the length fraction of each component and the total fiber length are controlled by tunable chemical potentials. Our formalism can describe fibers in which one block is a bare polymer while the other is an adsorbed protein-filament complex; these blocks maintain different bending rigidities and spontaneous curvatures. We analytically calculate the shape of two-component polymers for all values of the material parameters and chemical potentials. Our results yield a complete analytical description of all possible two-component polymer conformations, a phase portrait detailing the parameter spaces in which these shapes occur, and the identification of spontaneous transitions between shapes driven by environmental changes.
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