DNA as a Tool for Authenticity Judgment

Abstract

DNA containing ink composition can be used in writing or printing of letters, images, and various codes. More specifically, it is used for printing securities, cards, foods, coating areas of cars, and the like. This technology is suitable for personal authentication or judging the authenticity by vermilion ink-pads or various coloring tools. Until now, they imagine that it takes a long time to extract DNA from DNA Ink printed matters, and requires so many steps. But we found a simple method for DNA extraction from printed matters without any damage of ones. This method is called “Direct DNA Transfer”. The DNA sequence is determined easily by PCR technology or (and) hybridization method.