Fabricating small-scale, curved, polymeric structures with convex and concave menisci through interfacial free energy equilibrium

Chao Min Cheng, Koji Matsuura, I. Jan Wang, Yuka Kuroda, Philip R. LeDuc, Keiji Naruse

Research output: Contribution to journalArticle

13 Citations (Scopus)


Polymeric curved structures are widely used in imaging systems including optical fibers and microfluidic channels. Here, we demonstrate that small-scale, poly(dimethylsiloxane) (PDMS)-based, curved structures can be fabricated through controlling interfacial free energy equilibrium. Resultant structures have a smooth, symmetric, curved surface, and may be convex or concave in form based on surface tension balance. Their curvatures are controlled by surface characteristics (i.e., hydrophobicity and hydrophilicity) of the molds and semi-liquid PDMS. In addition, these structures are shown to be biocompatible for cell culture. Our system provides a simple, efficient and economical method for generating integrateable optical components without costly fabrication facilities.

Original languageEnglish
Pages (from-to)3306-3309
Number of pages4
JournalLab on a Chip
Issue number22
Publication statusPublished - Jan 1 2009


ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Chemistry(all)
  • Biomedical Engineering

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