To discourage counterfeiters, signing of important documents with
DNA is finding solid ground.
Already a practice with American
cartoonist Joe Barbara, who signs
his creations with his own genetic
material, the technique is the brain-child of Charles Butland of the Ios
Angeles-based company, DNA Art
Guard International (New Scientist, Vol 146, No 1971).
The genetic ink is prepared by isolating a DNA sequence from a source, sandwiching it between chemical primers, amplifying it through polymerase chain reaction and then mixing it with ordinary ink.
We are a voice to you; you have been a support to us. Together we build journalism that is independent, credible and fearless. You can further help us by making a donation. This will mean a lot for our ability to bring you news, perspectives and analysis from the ground so that we can make change together.
Comments are moderated and will be published only after the site moderator’s approval. Please use a genuine email ID and provide your name. Selected comments may also be used in the ‘Letters’ section of the Down To Earth print edition.