Solve cold cases with the help of nanoparticles

    A new technique using gold nanoparticles will make it easier to analyze old, dry fingerprints, possibly adding new evidence to cold cases.
    Why not develop a new method of targeting amino acids in sweat by combining antibodies that will bind to amino acids with gold nanoparticles. The antibodies will bind to the amino acids, and the gold nanoparticles will help to bring the details of the fingerprint into sharper focus.