Imagine if ATMs were made of this stuff--thieves could unwittingly destroy their loot before even removing it, as Chemistry World reported. The system could also be tweaked to include dye or a "DNA-based marker" so that thieves could be easily identified and caught, as they say, red-handed. Since the system requires no electricity, it could be cheaper way of defending ATMs, as the researchers wrote in the Journal of Materials Chemistry A. It could also be used to prevent animals from eating certain crops or trees, they added.