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  2. Biological aspects of fluorine - Wikipedia

    en.wikipedia.org/wiki/Biological_aspects_of_fluorine

    PET scan using fluorine-18. Fluorine may interact with biological systems in the form of fluorine-containing compounds. Though elemental fluorine (F 2) is very rare in everyday life, fluorine-containing compounds such as fluorite occur naturally as minerals. Naturally occurring organofluorine compounds are extremely rare. Man-made fluoride ...

  3. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    In plants, it has important roles in nucleic acid metabolism, carbohydrate and protein metabolism, cell wall synthesis, cell wall structure, membrane integrity and function, and phenol metabolism. [20] Probably essential to animals, for reasons not well understood. [21] Toxic to both animals and plants. [22] bromine: 35: 5

  4. Fluorine - Wikipedia

    en.wikipedia.org/wiki/Fluorine

    Fluorine is a chemical element; it has symbol F and atomic number 9. It is the lightest halogen [note 1] and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it reacts with all other elements except for the light inert gases. It is highly toxic.

  5. What is fluoride and why is it in the water? - AOL

    www.aol.com/finance/fluoride-study-dividing...

    Fluoride, the chemical ion of the mineral fluorine, is naturally present in trace amounts, according to the Centers for Disease Control and Prevention, in soil, water, plants, and some food ...

  6. Fluorine cycle - Wikipedia

    en.wikipedia.org/wiki/Fluorine_cycle

    Fluorine is an important element for biological systems. From a mammalian health perspective, it is notable as a component of fluorapatite , a key mineral in the teeth of humans that have been exposed to fluorine, as well as shark and fish teeth. [ 4 ]

  7. Smartwatch and fitness tracker bands have elevated levels of ...

    www.aol.com/lifestyle/smartwatch-fitness-tracker...

    The researchers discovered that all of the 13 bands that advertised that they were made from fluoroelastomers contained fluorine, which indicates the potential presence of PFAS. Two of the nine ...

  8. Fluoride - Wikipedia

    en.wikipedia.org/wiki/Fluoride

    Fluorine, in the form of fluoride, is considered to be a micronutrient for human health, necessary to prevent dental cavities, and to promote healthy bone growth. [28] The tea plant (Camellia sinensis L.) is a known accumulator of fluorine compounds, released upon forming infusions such as the common beverage. The fluorine compounds decompose ...

  9. Berberine is a chemical compound derived from plants like tree turmeric, barberry, goldenseal, goldenthread – all of which have historically played an important role in Chinese and Ayurvedic ...