Other subjects explored include hydrogen bonding effects on the photochemistry of chromophores in solution, photochemical generation of silicon-centered radicals and their reactions, and photochemical processes at the air-water interface of atmospheric droplets.
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class of psychoactive drugs. It is the world's most widely consumed psychoactive drug, but unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world.
Background. Caffeine (1,3,7-trimethylxanthine; see the image below) is the most widely consumed stimulant drug in the world. It is present in a variety of forms: medications, coffee, tea, soft drinks, and chocolate. Because caffeine overdoses, intentional or unintentional, are relatively common in the United States, physicians and other medical personnel must be aware of caffeine toxicity to recognize and treat it appropriately.