Fabrication of photonic crystals with nigrosine-doped poly(MMA-co-DVB-co-MAA) particles.
Shuai Zhang, Xiang-Wei Zhao, Hua Xu, Rong Zhu, Zhong-Ze Gu
Index: J. Colloid. Interface Sci. 316(1) , 168-74, (2007)
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Abstract
A convenient approach was developed to fabricate monodisperse nigrosine-doped poly(methyl methacrylate-co-divinylbenzene-co-methacrylic acid) nanoparticles with different cross-linkage by soap-free emulsion polymerization at boiling status and swelling process. The dye-doped nanoparticles were used for the fabrication of colloidal crystal films and beads. It was found that nigrosine dye in the nanoparticles can efficiently depress the light scattering inside the colloidal crystal films and eliminate the iridescent effect in the photonic beads. These results make the colloidal crystals useful in photonic paper, bioassay, and so on.
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