Delayed buckling and guided folding of inhomogeneous capsules

Sujit S. Datta, Shin Hyun Kim, Jayson Paulose, Alireza Abbaspourrad, David R. Nelson, David A. Weitz

Research output: Contribution to journalArticle

94 Scopus citations

Abstract

Colloidal capsules can sustain an external osmotic pressure; however, for a sufficiently large pressure, they will ultimately buckle. This process can be strongly influenced by structural inhomogeneities in the capsule shells. We explore how the time delay before the onset of buckling decreases as the shells are made more inhomogeneous; this behavior can be quantitatively understood by coupling shell theory with Darcy's law. In addition, we show that the shell inhomogeneity can dramatically change the folding pathway taken by a capsule after it buckles.

Original languageEnglish (US)
Article number134302
JournalPhysical review letters
Volume109
Issue number13
DOIs
StatePublished - Sep 27 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Datta, S. S., Kim, S. H., Paulose, J., Abbaspourrad, A., Nelson, D. R., & Weitz, D. A. (2012). Delayed buckling and guided folding of inhomogeneous capsules. Physical review letters, 109(13), [134302]. https://doi.org/10.1103/PhysRevLett.109.134302