The Photograph of Researchers (IMAGE) National Research Council of Science & Technology Caption Researchers Jae-woo Choi and Dr. Kyung-won Jung (right-hand, first author) of KIST's Water Cycle Research Center are experimenting with removing pollutants and environmental hormones from the water simultaneously by combining newly developed eco-friendly nanocomposite catalyst with ultrasound. Credit Korea Institute of Science and Technology(KIST) Usage Restrictions The sources of photos and research results from KIST must be specified. 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.