Switchgrass Pretreatment (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption These fluorescence images of a stem of switchgrass treated with EmimAc ionic liquid shows the section (a) before treatment (b) 20 minutes after treatment (c) 50 minutes after treatment and (d) two hours after treatment when the organized plant cell wall structure has been completely broken down. Credit Blake Simmons and Seema Singh Usage Restrictions None 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.