1. Chemistry

    Sensor sniffs out spoiled fish

    A new electronic nose detects amine compounds produced when fish decay.

  2. Chemistry

    Air knocks the wind out of nanotubes

    Carbon nanotubes are very sensitive to oxygen, an effect that could limit their use in open-air applications.

  3. Chemistry

    Heat spurs growth of tiny carbon trees

    Microscopic carbon forests can grow on a graphite surface without the help of catalysts.

  4. Chemistry

    Buckyballs Can Come from Outer Space

    A new analysis settles the question of whether carbon molecules found in meteorites have an extraterrestrial origin.

  5. Chemistry

    The Dirt on Art: Chemists test laser cleanup of paintings

    A new experiment shows that lasers can be a safe tool for cleaning paintings.

  6. Chemistry

    Molecules Leave Their Mark

    A material etched with tiny, carefully shaped pores can act like an artificial enzyme, cell membrane, or receptor.

  7. Chemistry

    Power cells find uses for fossil fuel

    A new fuel cell that runs on hydrocarbons such as natural gas, butane, and diesel instead of hydrogen could be an efficient, practical way to generate power without pollution.

  8. Chemistry

    Where the Gems Are

    By using a novel tool to figure out an emerald’s oxygen-isotope ratio, gemologists can now determine which mine the precious stone came from and, possibly, gain insights into the formation and history of these coveted gems.

  9. Chemistry

    Money Allergies: Two-toned euro coins shed metallic allergen

    The two-alloy composition of some euro coins makes them release large amounts of nickel, a common skin allergen.

  10. Chemistry

    Rooting for new antimicrobial drugs

    A compound from a tree found throughout tropical Africa could prove useful as a topical antifungal medication.

  11. Chemistry

    Wine Tasting: Instrument can sniff out vinegar in sealed wine

    A new system could determine whether a sealed bottle of wine has turned to vinegar.

  12. Chemistry

    Germ Fighter: Lens coating may keep contacts in eye longer

    A new antibacterial coating may allow contact lenses to remain in a person's eyes for up to 3 months.