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  1. Chemistry

    Expanding the genetic code

    In an effort to explore the mechanisms of evolution, researchers have designed an unnatural chemical base and inserted it into synthetic DNA in a test tube.

    By Alexandra Goho
  2. Tech

    X rays detect fingerprints

    Analytical chemists have developed a method that visualizes elusive fingerprints with X rays.

    By Alexandra Goho
  3. Chemistry

    Stopping wool from shrinking

    Treating wool with a fungal enzyme not only prevents the fibers from shrinking but also is more environmentally friendly than using conventional chemical treatments.

    By Alexandra Goho
  4. Health & Medicine

    Molecular decoy thwarts Alzheimer’s

    Biomedical engineers have developed polymer molecules that bind to and block the activity of proteins associated with Alzheimer's disease.