Pic 1 (IMAGE) National Research Council of Science & Technology Caption KRISS Nanobio Measurement Group (From bottom left: Senior researcher Jin Gyeung Son, principal researcher Hee-Kyung Na, principal researcher Tae Geol Lee, post-doc researcher Sunho Joh, PhD student Ahmed M. Elbedwehy) Credit Korea Research Institute of Standards and Science (KRISS) Usage Restrictions The sources of photos and research results from KRISS must be specified. License Original 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.