NATIONAL UNIVERSITY OF SINGAPORE; AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH; CHANG, Young-Tae; LEE, Sung Chan; KANG, Nam-Young; YUN, Seong Wook; LEONG, Cheryl Kit Mun; HA, Hyung Ho Patent: WO2013/95305 A1, 2013 ; Location in patent: Page/Page column 25 ;