Ionic Liquids (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption JBEI scientists have advanced the use of ionic liquids, shown here, to break down cellulosic biomass. The latest development involves the use of carbon dioxide to reversibly adjust the pH level of ionic liquids, greatly simplifying the biofuel production process and lowering cost. Credit Roy Kaltschmidt/Berkeley Lab Usage Restrictions Editorial use with 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.