期刊
SOFT MATTER
卷 10, 期 26, 页码 4674-4685出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4sm00605d
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资金
- Natural Science and Engineering Council of Canada
- National Basic Research Program of China [2011CB605700]
- NSF of China [91127033, 21374023]
- Fudan University
The free energy and conformational properties of a wormlike chain confined inside a spherical surface are investigated. We show that in the weak-confinement limit, the wormlike chain model exactly reproduces the confinement properties of a Gaussian chain; in such a case the confinement entropy dominates the free energy; in the strong-confinement limit, the free energy is dominated by the bending energy of the chain, which is forced to wrap around the confining surface. We also present a numerical solution within the crossover region between the two limits, solving the differential equation that the probability distribution function satisfies.
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