Subak - Nucleic acid detection graphic (IMAGE) Southern Methodist University Caption A study published in the journal Nature Nanotechnology shows that a low-cost tool, called Subak, is effective at telling when nuclease digestion has occurred, which is when an enzyme called nuclease breaks down nucleic acids, such as DNA or RNA, into smaller fragments. Researchers programmed the Subak reporters to emit a different color when they are digested by nucleases. Credit Nature Nanotechnology Usage Restrictions Reprints and permissions information is available at www.nature.com/reprints. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.