Light Irradiation (image) Nara Institute of Science and Technology Share Print E-Mail Caption Light irradiation onto the ambient inert new PLAG generates Lewis Acid as a versatile catalyst. As the image depicts this process is like flipping a deck of cards and always coming up with the all-mighty card. Credit Tsuyoshi Kawai Usage Restrictions Credit Required. 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.