Author/Authors :
Li، نويسنده , , Mingzhu and Wang، نويسنده , , Jingxia and Feng، نويسنده , , Lin and Wang، نويسنده , , Bingbing and Jia، نويسنده , , Xinru and Jiang، نويسنده , , Lei and Song، نويسنده , , Yanlin and Zhu، نويسنده , , Daoben، نويسنده ,
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.
