Self-assembled coffee-ring colloidal crystals for structurally colored contact lenses

Small. 2015 Feb 25;11(8):926-30. doi: 10.1002/smll.201402071. Epub 2014 Oct 20.

Abstract

A circlular structural-colored contact lens is reported, which is fabricated by replicating self-assembled colloidal photonic crystal templates. The structural-colored contact lenses not only display variable and brilliant color under light illumination, but also avoid the addition of any colorants to the hydrogel lenses and prevent the potential harm posed by traditional colored contact lenses.

Keywords: coffee-ring effect; colloidal crystals; contact lenses; photonic crystals; structural colors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 3T3 Cells
  • Animals
  • Colloids / chemistry*
  • Contact Lenses*
  • Cross-Linking Reagents / chemistry
  • Crystallization
  • Hydrogen-Ion Concentration
  • Methacrylates / chemistry
  • Mice
  • Microscopy, Electron, Scanning
  • Microscopy, Fluorescence
  • Nanoparticles / chemistry
  • Optics and Photonics
  • Oxygen / chemistry
  • Photons
  • Pigmentation
  • Polymers / chemistry
  • Propiophenones / chemistry
  • Silicon Dioxide / chemistry
  • Temperature

Substances

  • Colloids
  • Cross-Linking Reagents
  • Methacrylates
  • Polymers
  • Propiophenones
  • Silicon Dioxide
  • ethylene dimethacrylate
  • Oxygen
  • 2-hydroxy-2-methylpropiophenone