Researchers in the United Kingdom have proposed a new method for detecting hypothetical "mirror life"—organisms built from molecules with reversed handedness, such as left-handed DNA twists instead of natural right-handed ones. While mirror life has not yet been discovered or developed, scientists warn that its emergence could pose severe global biosecurity risks.
Published in Royal Society Open Science, a study by researchers from the University of Strathclyde and Durham University details an assay principle using circularly polarized luminescence (CPL). By using fluorescent probes and measuring how light waves spiral from a sample, the technique could potentially screen for reversed molecular structures without requiring mirror organisms to be cultivated first.
Because natural terrestrial defenses might fail against looking-glass microorganisms capable of evading standard pharmaceuticals, experts emphasize the need for early detection systems and tighter restrictions on laboratory research. The study's authors hope to next test their fluorescent probes on conventional cells to further refine light-detection technologies for future biosurveillance.
