Abstract:

Colorful azo molecules can be found in our daily lives, like clothes, cosmetics and food, etc. However, the azo molecules can do much more than that. Through the story of an azo molecule in martial arts world, this paper mainly introduces a gecko-like adhesive pad controlled by light, the mechanism of the generation and the color change of the molecule. Through the "poison uniform" event, this paper introduces the carcinogenic risk of the azo disperse dyes and the anti-cancer effect of an azo dye. The wide and amazing applications of azo compounds are also highlighted.

Key words: Azo compounds, Photoinduced motion, Disperse dyes, Carcinogenicity, Drug delivery