IMAGE (IMAGE) Kyoto University Caption A porous coordination polymer incorporated with amino acid directionally aligned in its pores preferentially adsorbs carbon dioxide to purify acetylene from a gaseous mixture. Credit Mindy Takamiya/Kyoto University Usage Restrictions Please display the credit License Licensed 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.