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Pyrene necklace | sterling silver
If you have spent enough time with fluorescent probes to know what an excimer is, the pyrene molecule needs no introduction. Four fused benzene rings in a flat symmetric structure, doing very different jobs depending on whose lab it ends up in: biophysical probe, photovoltaic material, persistent environmental pollutant. Worn here as a 31 mm sterling silver pendant.
The Science Behind Pyrene
Pyrene's most distinctive property is its strong fluorescence under ultraviolet light. At higher concentrations, two pyrene molecules form an excimer, an excited-state dimer that emits at a longer wavelength than the monomer. The ratio of excimer to monomer fluorescence depends on local concentration and viscosity, which makes pyrene a workhorse probe in biophysics: pyrene-labelled lipids, proteins, and nucleic acids report on membrane dynamics, protein interactions, and molecular crowding. Pyrene is also a polycyclic aromatic hydrocarbon found in incomplete combustion: cigarette smoke, grilled food, and diesel exhaust. Several PAH family members are confirmed carcinogens. In materials science, pyrene derivatives are used in organic LEDs, organic solar cells, and the non-covalent functionalisation of carbon nanotubes. One molecule, three working scientific contexts.
Who Will Recognise It
- organic and physical organic chemists
- biochemists and biophysicists using fluorescence spectroscopy
- materials scientists working on organic electronics
- environmental chemists studying PAH contamination
Explore Related Molecules Jewelry
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FAQ
Why does pyrene fluoresce so strongly?
Because its extended conjugated pi-electron system absorbs ultraviolet light efficiently and releases the energy as visible-wavelength fluorescence. The fluorescence has a long lifetime, around 100 to 400 nanoseconds depending on solvent, which makes pyrene unusually useful as a sensor: any process that brings two pyrene molecules close enough to form an excimer gives a measurable shift in emission wavelength. That is the principle behind pyrene-labelled probes in biophysics.
Is pyrene the same family as the carcinogenic PAHs?
It is part of the polycyclic aromatic hydrocarbon family, yes, but the carcinogenicity varies dramatically across the family. Pyrene itself is not classified as carcinogenic by IARC. Benzo[a]pyrene, a related five-ring PAH, is a Group 1 carcinogen. The structural similarity between pyrene and its more toxic relatives is what makes pyrene useful as a chemical proxy in environmental monitoring: it is easier to detect and track than the truly dangerous members of the family.
What size is the pendant and what is the return policy?
925 sterling silver, 31 mm pendant on a 45 cm sterling silver chain with a 5 cm extender. 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.
Is there a gold version of pyrene?
Not at present. The pyrene pendant is sterling silver only. Other PAH-adjacent or aromatic molecules in the catalogue, including graphite (also pure carbon, different lattice) and anthocyanin (a different aromatic chromophore family), are also silver-only. If a gold molecule pendant is the goal, glucose, caffeine, or tocopherol are good cross-material picks in the same Molecules theme.
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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