Direct observation of biaxial confinement of a semiflexible filament in a channel

M. C. Choi, C. D. Santangelo, O. Pelletier, J. H. Kim, S. Y. Kwon, Z. Wen, Y. Li, P. A. Pincus, C. R. Safinya, M. W. Kim

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

The biaxial confinement of a semiflexible filament in a channel was investigated using high resolution video microscopy. A single chain of F-actin was found to undergo fluctuations with characteristic time scales of seconds at room temperature. A mode was introduced to study the tangent-tangent correlation function of confined F-actin. The results showed that with decreasing channel width, F-actin undergoes a transition from 2D randomly oriented regime to a 1D biaxially confined regime.

Original languageEnglish (US)
Pages (from-to)9882-9884
Number of pages3
JournalMacromolecules
Volume38
Issue number23
DOIs
StatePublished - Nov 15 2005
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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