Intelligent Polymerized Crystalline Colloidal Arrays : Novel Chemical Sensor Materials

  title={Intelligent Polymerized Crystalline Colloidal Arrays : Novel Chemical Sensor Materials},
  author={John H. Holtz and Janet S. W. Holtz and Calum H. Munro and Sanford A Asher},
We report the development of a novel sensing material that reports on analyte concentrations via diffraction of visible light from a polymerized crystalline colloidal array (PCCA). The PCCA is a mesoscopically periodic crystalline colloidal array (CCA) of spherical polystyrene colloids polymerized within a thin, intelligent polymer hydrogel film. CCAs are brightly colored, and they efficiently diffract visible light meeting the Bragg condition. The intelligent hydrogel incorporates chemical… CONTINUE READING
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