Anthocyanins as Functional Food Colors.- Flavonoids in Sophora Species.- Quantitative Structure–Cytotoxicity Relationship of Bioactive Heterocycles by the Semi-empirical Molecular Orbital Method with the Concept of Absolute Hardness.- The Chemistry of Bioactive Mesoionic Heterocycles.- Bioactive Phenothiazines and Benzo[a]phenothiazines: Spectroscopic Studies, and Biological and Biomedical Properties and Applications.