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Fabrication of tunable colloid crystals from amine-terminated polyamidoamine dendrimers |
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| Authors: | Mingzhu Li Jingxia Wang Lin Feng Bingbing Wang Xinru Jia Lei Jiang Yanlin Song Daoben Zhu |
| Institution: | aOrganic Solids Laboratory, Institute of Chemistry & Center for Molecular Science, Chinese Academy of Sciences, Beijing 100080, PR China bGraduate School of the Chinese Academy of Sciences, China cCollege of Chemistry and Molecular Engineering, Peking University, 100871, China dDepartment of Chemistry, Tsinghua University, Beijing 100080, PR China |
| Abstract: | A pH-responsive colloidal crystal was assembled using core-shell composite spheres, poly(styrene-methyl methacrylate-acrylic acid) (P(St-MMA-AA)) spheres covered by generation 4 amine-terminated polyamidoamine dendrimers. The light reflection of the colloidal crystal film can be tuned at different pH due to different protonation level of the dendrimers. The method shows a facile way to fabricate diffraction-based chemical and biological sensors by exploiting the effect of photonic crystal cooperated with tunable nanoparticles. |
| Keywords: | Colloidal crystal Polyamidoamine dendrimers pH responsive |
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