Fluorescent of plant pigment analogs: flavylium and pyranoflavylium cations - Quina, Frank Herbert; Silva, C. Pacheco da; Silva, G. T. Medeiros; Zheng, Shasha; Zhang, Mengjiao; Freitas, A. A; Silva, V. O; Carneiro, Vânia Maria Teixeira (Conference on Fluorescent Biomolecules and their Building Blocks (FB3), 2016)