€ 180
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Adenine necklace | 18K gold vermeil
Adenine is the A in DNA, one of the four letters that spell out every gene. This adenine necklace in 18K gold vermeil is a gift for the molecular biologist or biochemist in your life, or for yourself, if you have spent years reading those letters.
Who It's For
- a molecular biologist or geneticist, on the day she defends her PhD
- a biochemistry student, when her final exams are behind her
- a colleague who runs on coffee and knows exactly why it works
- someone who wears the adenine-thymine earrings in gold vermeil and would like the necklace to go with them
- yourself, if gold is what you wear every day
Why Coffee Keeps You Awake
Adenosine is adenine joined to a sugar, ribose. While you are awake, adenosine slowly builds up in the brain, and the more there is, the stronger the pull towards sleep. Nerve cells sense it through adenosine receptors. Caffeine fits into those same receptors without switching them on, so it blocks the signal. The adenosine is still there. The brain just can't hear it for a while. Once the caffeine wears off, the sleepiness returns. During sleep, adenosine levels fall, and the build-up starts over when you wake.
Explore Related Molecules Jewelry
- adenine necklace | silver
- adenine - thymine earrings | gold vermeil
- cytosine - guanine necklace | gold vermeil
- DNA necklace H | gold vermeil
FAQ
How big is the pendant, and what chain comes with it?
The pendant is 21 mm (about 0.8 inches) wide, about the size of a US nickel and a little smaller than a 1-euro coin. It is attached to the chain at both sides, so it stays level, and sits just below the collarbone. The chain is 45 cm (17.7 inches) of gold vermeil with a lobster clasp and a 5 cm (2 inch) extender. 18K gold vermeil means 2.5 microns of 18K gold over solid sterling silver, nickel-free and hypoallergenic.
Is there a silver version?
Yes. The adenine necklace also comes in sterling silver, at the same 21 mm. Choose the finish the recipient already wears: the design is the same in both. To go with it, the adenine-thymine earrings and the cytosine-guanine necklace also come in gold vermeil.
Is delivery free, and what if it isn't right?
Yes. DHL Express delivers free in 1-5 business days worldwide, and we pay the import duties and taxes, so nothing is due at the door. It arrives in a ready-to-gift jewelry box and festive envelope. If it isn't right, our 30-day “Love It or Return It” policy applies.
Why is it called adenine?
Because it was first found in a gland. In 1885 the German biochemist Albrecht Kossel isolated a new base from pancreas tissue and named it after the Greek word for gland, adēn. His lab went on to identify thymine and cytosine as well, so three of the four letters in every DNA sequence trace back to his work. The fourth, guanine, already had a name: it was first found in guano. Kossel received the Nobel Prize in Physiology or Medicine in 1910.
Molecules
Delve into the hidden elegance of science with our meticulously crafted jewelry, inspired by the intricate structures of chemical molecules. Each piece serves as a tactile tribute to the building blocks of life and matter, capturing the allure of atoms and bonds in precious metals. A harmonious fusion of art and science, these creations are more than mere accessories; they're a celebration of the enigmatic beauty that underpins our universe.
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