Solutions of Right- and Left-Handed Nano Spiral Staircases Interact with Circular Polarized Light (image) Technical University of Munich (TUM) Share Print E-Mail Caption Although chemically alike solutions of right- and left-handed nano spiral staircases interact specifically with circular polarized light. The nano spiral staircases were built up using the DNA-origami method. Credit TIM Liedl / LMU Usage Restrictions None Share Print E-Mail 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.