Despite our commitment to provide a comprehensive description of particular compounds, we are also continuously contributing to better understanding of several fundamental issues:

• Structure effects on spectral and photophysical properties of flavins.
• Photosensitization of singlet oxygen in both simple well-defined model systems and foodstuffs.
• Effects of light on foodstuffs and other consumer goods.
• Studies of opaque and highly scattering materials.
• Application of fast and non-destructive methods to monitoring chemical changes caused by light.
• Application of spectral, photophysical, and statistical methods to classify various consumer products with respect to their origin, shelf history, and consumer value.
• Non-classical kinetics, such as transient effect, and excited state lifetime distribution in heterogeneous environments.