Caffeine earrings | sterling silver Caffeine is 1,3,7-trimethylxanthine, three methyl groups on a purine backbone. Six cups of coffee, a triple espresso, or steady focus without the jittery spike. The molecule that powers labs and lectures, worn here as a 14 mm sterling silver hoop for anyone who knows what they depend on. The Science Behind Caffeine Caffeine is a methylxanthine alkaloid, first isolated by Friedlieb Ferdinand Runge in Goethe's lab in 1819. It works by antagonizing adenosine receptors, primarily A1 and A2A, blocking the sleep-promoting effects of accumulated adenosine. Peak plasma concentration arrives within 30 to 60 minutes of ingestion, with an average half-life of 5 hours, though genetic variation in the CYP1A2 enzyme determines whether you are a fast or slow metabolizer. Approximately 80 percent of the global adult population consumes caffeine daily, making it the most used psychoactive substance worldwide. Who Will Recognise It biochemists and pharmacologists who teach receptor antagonism through this molecule shift workers and night-shift nurses for whom this structure is a necessity researchers who have pulled consecutive all-nighters at the bench anyone who has sketched the purine backbone and knows the three methyl groups define the pharmacology For someone who knows the half-life, the A2A antagonism, and why 4 pm is too late to reach for the cup. Explore Related Molecules Jewelry Caffeine necklace | silver Caffeine necklace | gold vermeil Dopamine necklace | silver Sagittal brain necklace | silver FAQ How does caffeine work in the brain? Caffeine blocks adenosine receptors, preventing adenosine from signalling tiredness to the brain. Adenosine accumulates throughout the day as a byproduct of metabolism, and its binding to A1 and A2A receptors tells your brain it is time to sleep. Caffeine competes for those receptors, delaying sleep onset and keeping you alert. The effect peaks around 30 to 60 minutes after consumption and wears off when your liver metabolizes it, which takes 5 hours on average (though CYP1A2 genetics determine whether you are fast or slow). What is the chemical structure shown in the earrings? Caffeine is a methylxanthine alkaloid with the molecular formula C8H10N4O2. It sits on a purine ring with three methyl groups attached at positions 1, 3, and 7. Those three methyls define the molecule's pharmacology. Remove one methyl and you have theobromine (the active alkaloid in chocolate). This specific arrangement of three methyls on the purine backbone is what blocks adenosine receptors. What size are the earrings and what chain information should I know? 925 sterling silver, 14 mm leverback earrings sized for daily wear. Nickel-free and hypoallergenic. Free worldwide DHL Express in 1-5 business days, with all import duties and taxes covered. 30-day “Love It or Return It” returns. Are these earrings available in other materials? Currently available in sterling silver only. The same caffeine structure is available as a necklace pendant in silver and as a necklace in gold vermeil, if you prefer to wear the molecule in a different format.
